The syntax is as follows: To unload the EvFilter driver: Fltmc unload EvFilter. To load the EvFilter driver: Fltmc load EvFilter. To view all instances of loaded drivers: Fltmc instances. To attach the driver to a specific volume: Fltmc attach EvFilter C: To detach the driver from a specific volume: 1 May 2020

Allocated filter altitudes - Windows drivers (2023)

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(Video) Windows Driver Development Tutorial 12 - File System Filter - Minifilter - Part 2

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12/15/2021
38 minutes to read

(Video) Windows Driver Development Tutorial 11 - File System Filter - Minifilter - Part 1

This page lists filter altitude allocations by load order group. It is updated 1-2 times per year, so might not include any recently assigned allocations (see date on this page for last update).

Note

If you already have a Microsoft-assigned "integer" altitude, you can use it to create your own altitude to place a new filter in the same load order group. If you don't have a Microsoft-assigned altitude in the appropriate load order group, you'll need submit an altitude request.

To learn more about load order groups and altitudes, including how you can place filters at fractional altitudes based on your Microsoft-issued integer altitude, see "Load order groups and altitudes for minifilter drivers".

(Video) Is there a quick way to see what filesystem filter drivers are loaded on Windows 2008?

To see how a driver uses its altitude number in its INF file, see Creating an INF file for a filter driver.

420000 - 429999: Filter

Minifilter	Altitude	Company
ntoskrnl.exe	425500	Microsoft
ntoskrnl.exe	425000	Microsoft

400000 - 409999: FSFilter Top

Minifilter	Altitude	Company
wcnfs.sys	409900	Microsoft
bindflt.sys	409800	Microsoft
cldflt.sys	409500	Microsoft
iorate.sys	409010	Microsoft
ioqos.sys	409000	Microsoft
fsdepends.sys	407000	Microsoft
sftredir.sys	406000	Microsoft
dfs.sys	405000	Microsoft
VeeamFCT.sys	404920	Veeam Software
tracker.sys	404910	Acronis
csvnsflt.sys	404900	Microsoft
csvflt.sys	404800	Microsoft
Microsoft.Uev.AgentDriver.sys	404710	Microsoft
AppvVfs.sys	404700	Microsoft
CCFFilter.sys	404600	Microsoft
uberAgentDrv.sys	402110	vast limits GmbH
mrigflt.sys	402100	Paramount Software Ltd
RevoNetDriver.sys	402020	J's Communication Co.
dciogrd.sys	402010	Datacloak Tech
Dewdrv.sys	402000	Dell Technologies
zsusbstorfilt.sys	401910	Zshield Inc
eaw.sys	401900	Raytheon Cyber Solutions
TVFsfilter.sys	401800	TrustView
KKDiskProtecter.sys	401700	Goldmsg
AgentComm.sys	401600	Trustwave Holding Inc
rvsavd.sys	401500	CJSC Returnil Software
DGMinFlt.sys	401410	Digital Guardian Inc.
dgdmk.sys	401400	Verdasys Inc.
tusbstorfilt.sys	401300	SimplyCore LLC
pcgenfam.sys	401200	Soluto
atrsdfw.sys	401100	Altiris
tpfilter.sys	401000	RedPhone Security
MBIG2Prot.sys	400920	Malwarebytes Inc
mbamwatchdog.sys	400900	Malwarebytes Corporation
DSESafeCtrlDrv.sys	400803	Shanghai Eff-Soft IT
edevmon.sys	400800	ESET spol. s r.o.
vmwflstor.sys	400700	VMware, Inc.
TsQBDrv.sys	400600	Tencent Technology
PolyPortFlt.sys	400490	PolyPort Inc
Dscdriver.sys	400300	Dell Technologies Inc.

360000 - 389999: FSFilter Activity Monitor

Minifilter	Altitude	Company
klboot.sys	389510	Kaspersky Lab
klfdefsf.sys	389500	Kaspersky Lab
JDPPWF.sys	389492	JiranData Co. Ltd
JDPPSF.sys	389490	JiranData Co. Ltd
FFDriver.sys	389470	ColorTokens
SeRdr.sys	389450	rhipe Australia Pty
storagedrv.sys	389400	SMTechnology Co.
NetPeeker.sys	389330	eMingSoftware Inc
path8flt.sys	389320	Telefónica Digital
NgScan.sys	389310	Acronis
icrlmonitor.sys	389300	Industrial Technology
gibepcore.sys	389290	Group-IB LTD
enmon.sys	389280	OpenText Corp
wsafefilter.sys	389272	WidgetNuri Corp
RansomDetect.sys	389270	WidgetNuri Corp
cbfsfilter2017.sys	389260	Mobile Content Mgmt
CBFSFilter2017.sys	389250	SecureLink Inc.
MagicProtect.sys	389247	NanJing Geomarking
cbfsfilter2017.sys	389245	NanJing Geomarking
cbfsfilter2020.sys	389245	NanJing Geomarking
DTDSel.sys	389242	DELL Technologies
NWEDriver.sys	389240	Dell Technologies
cytmon.sys	389230	Cytrence Inc
SophosED.sys	389220	Sophos
MonsterK.sys	389210	Somma Inc
IFS64.sys	389200	Ashampoo Development
TSTFsReDir.sys	389192	ThinScale Tech
TSTRegReDir.sys	389191	ThinScale Tech
TSTFilter.sys	389190	ThinScale Tech
VrnsFilter.sys	389180	Varonis Ltd
slb_guard.sys	389175	Lenovo Beijing
lrtp.sys	389170	Lenovo Beijing
ipcomfltr.sys	389160	Bluzen Inc
SvCBT.sys	389150	Spharsoft Technologies
mbamshuriken.sys	389140	Malwarebytes
ContainerMonitor.sys	389130	Aqua Security
cmflt.sys	389125	Certero
SaMFlt.sys	389120	DreamCrafts
RuiMinispy.sys	389117	RuiGuard Ltd
RuiFileAccess.sys	389115	RuiGuard Ltd
RuiEye.sys	389113	RuiGuard Ltd
RuiMachine.sys	389111	RuiGuard Ltd
windd.sys	389110	Comae Tech
cbfsfilter2017.sys	389105	Basein Networks
taobserveflt.sys	389100	ThinAir Labs Inc
bsrfsflt.sys	389096	Man Technology Inc
fsrfilter.sys	389094	Man Technology Inc
vollock.sys	389092	Man Technology Inc
drbdlock.sys	389090	Man Technology Inc
dcfsgrd.sys	389085	Datacloak Tech
hsmltmon.sys	389080	Hitachi Solutions
AternityRegistryHook.sys	389070	Aternity Ltd
MozyNextFilter.sys	389068	Carbonite Inc
MozyCorpFilter.sys	389067	Carbonite Inc
MozyEntFilter.sys	389066	Carbonite Inc
MozyOEMFilter.sys	389065	Carbonite Inc
MozyEnterpriseFilter.sys	389064	Carbonite Inc
MozyProFilter.sys	389063	Carbonite Inc
MozyHomeFilter.sys	389062	Carbonite Inc
BDSFilter.sys	389061	Carbonite Inc
CSBFilter.sys	389060	Carbonite Inc
ChemometecFilter.sys	389050	ChemoMetec
SentinelMonitor.sys	389040	SentinelOne
DhWatchdog.sys	389030	Microsoft
edrsensor.sys	389025	Bitdefender SRL
bdprivmon.sys	389022	Bitdefender SRL
NpEtw.sys	389020	Koby Kahane
OczMiniFilter.sys	389010	OCZ Storage
ielcp.sys	389004	Intel Corporation
IESlp.sys	389002	Intel Corporation
IntelCAS.sys	389000	Intel Corporation
boxifier.sys	388990	Kenubi
SamsungRapidFSFltr.sys	388980	NVELO Inc.
drsfile.sys	388970	MRY Inc.
CbFltFs4.sys	388966	Simopro Technology
CrUnCopy.sys	388964	Shenzhen CloudRiver
aictracedrv_am.sys	388960	AI Consulting
fiopolicyfilter.sys	388954	SanDisk Inc.
sodatpfl.sys	388951	SODATSW spol. s r.o.
sodatpfl.sys	388950.2	SODATSW
fcontrol.sys	388950	SODATSW spol. s r.o.
qfilter.sys	388940	Quorum Labs
Redlight.sys	388930	Trustware Ltd
ClumioChangeBlockMf.sys	388925	Clumio Inc
eps.sys	388920	Lumension
VHDTrack.sys	388915	Intronis Inc
VHDDelta.sys	388912	Niriva LLC
FSTrace.sys	388910	Niriva LLC
YahooStorage.sys	388900	Yahoo Japan Corporation
KeWF.sys	388890	KEBA AG
epregflt.sys	388888	Check Point Software
epklib.sys	388886	Check Point Software
zsfprt.sys	388880	k4solution Co.
dsflt.sys	388876	cEncrypt
bfaccess.sys	388872	bitFence Inc.
xcpl.sys	388870	X-Cloud Systems
DFMFilter.sys	388867	ManageEngine Zoho
DCFAFilter.sys	388866	ManageEngine Zoho
RMPHVMonitor.sys	388865	ManageEngine Zoho
FAPMonitor.sys	388864	ManageEngine Zoho
MEARWFltDriver.sys	388863	ManageEngine Zoho
EaseFlt.sys	388860	EaseVault Technologies Inc.
rpwatcher.sys	388855	Best Security
sieflt.sys	388852	Quick Heal Technologies Pvt. Ltd.
cssdlp.sys	388851	Quick Heal Technologies Pvt. Ltd.
cssdlp.sys	388850	CoSoSys
INISBDrv64.sys	388840	Initech Inc.
kconv.sys	388832	Fitsec Ltd
trace.sys	388831	Fitsec Ltd
SandDriver.sys	388830	Fitsec Ltd
dskmn.sys	388820	Honeycomb Technologies
offsm.sys	388811	Jiransoft Co., Ltd
xkfsfd.sys	388810	Jiransoft Co., Ltd
JKPPOB.sys	388808	Jiransoft Co., Ltd
JKPPXK.sys	388807	Jiransoft Co., Ltd
JKPPPF.sys	388806	Jiransoft Co., Ltd
JKPPOK.sys	388805	Jiransoft Co., Ltd
pcpifd.sys	388800	Jiransoft Co., Ltd
NNTInfo.sys	388790	New Net Technologies Limited
NmpFilter.sys	388781	IBM
FsMonitor.sys	388780	IBM
CVCBT.sys	388770	CommVault Systems, Inc.
AwareCore.sys	388760	TaaSera Inc.
laFS.sys	388750	NetworkProfi Ltd
fsnk.sys	388740	SoftPerfect Research
RGNT.sys	388730	HFN Inc.
fltRs329.sys	388720	Secured Globe Inc.
ospmon.sys	388710	SC ODEKIN SOLUTIONS SRL
edsigk.sys	388700	Enterprise Data Solutions, Inc.
fiometer.sys	388692	Fusion-io
dcSnapRestore.sys	388690	Fusion-io
fam.sys	388680	Quick Heal Technologies Pvt. Ltd.
vidderfs.sys	388675	Vidder Inc.
Tritiumfltr.sys	388670	Tritium Inc.
HexisFSMonitor.sys	388660	Hexis Cyber Solutions
BlackbirdFSA.sys	388650	BeyondTrust Inc.
TMUMS.sys	388642	Trend Micro Inc.
hfileflt.sys	388640	Trend Micro Inc.
TMUMH.sys	388630	Trend Micro Inc.
AcDriver.sys	388620	Trend Micro, Inc.
SakFile.sys	388610	Trend Micro, Inc.
SakMFile.sys	388600	Trend Micro, Inc.
rsfdrv.sys	388580	Clonix Co
alcapture.sys	388570	Airlock Digital Pty Ltd
kmNWCH.sys	388560	IGLOO SECURITY, Inc.
ISIRMFmon.sys	388550	ALPS SYSTEM INTERGRATION CO.
EsProbe.sys	388542	Stormshield
heimdall.sys	388540	Arkoon Network Security
thetta.sys	388532	Syncopate
thetta.sys	388531	Syncopate
thetta.sys	388530	Syncopate
DTPL.sys	388520	CONNECT SHIFT LTD
CyOptics.sys	388514	Cylance Inc.
CyProtectDrv32.sys	388510	Cylance Inc.
CyProtectDrv64.sys	388510	Cylance Inc.
tbfsfilt.sys	388500	Third Brigade
IvAppMon.sys	388491	Ivanti
LDSecDrv.sys	388490	LANDESK Software
SGResFlt.sys	388480	Samsung SDS Ltd
CwMem2k64.sys	388470	ApSoft
axfltdrv.sys	388460	Axact Pvt Ltd
RMDiskMon.sys	388450	Qingdao Ruanmei Network Technology Co.
diskactmon.sys	388440	Qingdao Ruanmei Network Technology Co.
BlackCat.sys	388435	NEXON KOREA
Codex.sys	388430	GameHi Co.
CatMF.sys	388420	Logichron Inc
RW7FsFlt.sys	388410	PJSC KP VTI
aswSP.sys	388401	Avast Software
aswFsBlk.sys	388400	ALWIL Software
AbrPmon.sys	388390	FastTrack Software ApS
ThreatStackFIM.sys	388380	Threat Stack
BOsCmFlt.sys	388370	Barkly Protects Inc.
BOsFsFltr.sys	388370	Barkly Protects Inc.
Asgard.sys	388365	SPEKNET EOOD
FeKern.sys	388360	FireEye Inc.
libwamf.sys	388350	OPSWAT Inc.
SZEDRDrv.sys	388346	SaferZone Co.
szardrv.sys	388345	SaferZone Co.
szpcmdrv.sys	388341	SaferZone Co.
szdfmdrv.sys	388340	SaferZone Co.
szdfmdrv_usb.sys	388331	SaferZone Co.
sprtdrv.sys	388330	SaferZone Co.
SWFsFltrv2.sys	388321	Solarwinds LLC
SWFsFltr.sys	388320	Solarwinds LLC
flashaccelfs.sys	388310	Network Appliance
changelog.sys	388300	Network Appliance
stcvsm.sys	388250	StorageCraft Tech
aUpDrv.sys	388240	ITSTATION Inc
fshs.sys	388222	F-Secure
fshs.sys	388221	F-Secure
fsatp.sys	388220	F-Secure
SecdoDriver.sys	388210	Secdo
TGFSMF.sys	388200	Tetraglyph Technologies
evscase.sys	388100	March Hare Software Ltd
VSScanner.sys	388050	VoodooSoft
HDRansomOffDrv.sys	388044	Heilig Defense LLC
HDCorrelateFDrv.sys	388042	Heilig Defense LLC
HDFileMon.sys	388040	Heilig Defense LLC
tsifilemon.sys	388012	Intercom Inc.
MarSpy.sys	388010	Intercom Inc.
AGSysLock.sys	388002	AppGuard LLC
AGSecLock.sys	388001	AppGuard LLC
BrnFileLock.sys	388000	Blue Ridge Networks
BrnSecLock.sys	387990	Blue Ridge Networks
LCmPrintMon.sys	387978	YATEM Co. Ltd.
LCgAdMon.sys	387977	YATEM Co. Ltd.
LCmAdMon.sys	387976	YATEM Co. Ltd.
LCgFileMon.sys	387975	YATEM Co. Ltd.
LCmFile.sys	387974	YATEM Co. Ltd.
LCgFile.sys	387972	YATEM Co. Ltd.
LCmFileMon.sys	387970	YATEM Co. Ltd.
IridiumSwitch.sys	387960	Confio
axfsysmon.sys	387951	AppiXoft
scensemon.sys	387950	AppiXoft
ruaff.sys	387940	RUNEXY
bbfilter.sys	387930	derivo GmbH
Bfmon.sys	387920	Baidu (Hong Kong) Limited
bdsysmon.sys	387912	Baidu Online Network
BdRdFolder.sys	387910	Baidu (beijing)
mlsaff.sys	387901	RUNEXY
pscff.sys	387900	Weing Co.,Ltd.
fcnotify.sys	387880	TCXA Ltd.
aaf.sys	387860	Actifio Inc
gddcv.sys	387840	G Data Software AG
wgfile.sys	387820	ORANGE WERKS Inc
zesfsmf.sys	387800	Novell
uamflt.sys	387700	Sevtechnotrans
ehdrv.sys	387600	ESET, spol. s r.o.
DattoFSF.sys	387560	Datto Inc
RubrikFileAudit.sys	387552	Rubrik Inc
FileSystemCBT.sys	387550	Rubrik Inc
Snilog.sys	387500	Systemneeds, Inc
tss.sys	387400	Tiversa Inc
LmDriver.sys	387390	in-soft Kft.
WDCFilter.sys	387330	Interset Inc.
altcbt.sys	387320	Altaro Ltd.
bapfecpt.sys	387310	BitArmor Systems, Inc
bamfltr.sys	387300	BitArmor Systems, Inc
TrustedEdgeFfd.sys	387200	FileTek, Inc.
MRxGoogle.sys	387100	Google, Inc.
YFSDR.SYS	387010	Yokogawa R&L Corp
YFSD.SYS	387000	Yokogawa R&L Corp
YFSRD.sys	386990	Yokogawa R&L Corp
psgfoctrl.sys	386990	Yokogawa R&L Corp
psgdflt.sys	386980	Yokogawa R&L Corp
USBPDH.SYS	386901	Centre for Development of Advanced Computing
pecfilter.sys	386900	C-DAC Hyderabad
GKPFCB.sys	386810	INCA Internet Co.
GKPFCB64.sys	386810	INCA Internet Co.
TkPcFtCb.sys on 32bit	386800	INCA Internet Co.,Ltd.
TkPcFtCb64.sys on 64bit	386800	INCA Internet Co.,Ltd.
bmregdrv.sys	386731	Yandex LLC
bmfsdrv.sys	386730	Yandex LLC
CarbonBlackK.sys	386720	Bit9 Inc.
ScAuthFSFlt.sys	386710	Security Code LLC
ScAuthIoDrv.sys	386700	Security Code LLC
mfeaskm.sys	386610	McAfee Inc.
mfencfilter.sys	386600	McAfee
WinFLAHdrv.sys	386540	NewSoftwares.net,Inc.
WinFLAdrv.sys	386530	NewSoftwares.net,Inc.
WinDBdrv.sys	386520	NewSoftwares.net,Inc.
WinFLdrv.sys	386510	NewSoftwares.net,Inc.
WinFPdrv.sys	386500	NewSoftwares.net,Inc.
varpffmon.sys	386486	Varlook Ltd.
SkyWPDrv.sys	386435	Sky Co.,Ltd.
SkyRGDrv.sys	386431	Sky Co., LTD.
SkyAMDrv.sys	386430	Sky Co., LTD.
SheedSelfProtection.sys	386421	SheedSoft Ltd
arta.sys	386420	SheedSoft Ltd.
ApexSqlFilterDriver.sys	386410	ApexSQL LLC
stflt.sys	386400	Xacti
tbrdrv.sys	386390	Crawler Group
WinTeonMiniFilter.sys	386320	Dmitry Stefankov
wiper.sys	386310	Dmitry Stefankov
DevMonMiniFilter.sys	386300	Dmitry Stefankov
VMWVvpfsd.sys	386200	VMware, Inc.
RTOLogon.sys (Renamed)	386200	VMware, Inc.
Code42Filter.sys	386190	Code42
ConduantFSFltr.sys	386180	Conduant Corporation
KtFSFilter.sys	386170	Keysight Technologies
FileGuard.sys	386140	RES Software
NetGuard.sys	386130	RES Software
RegGuard.sys	386120	RES Software
ImgGuard.sys	386110	RES Software
AppGuard.sys	386100	RES Software
RuiDiskFs.sys	386030	RuiGuard Ltd
minitrc.sys	386020	Protected Networks
cpepmon.sys	386010	Checkpoint Software
CGWMF.sys	386000	NetIQ
ISRegFlt.sys	385990	Flexera Software Inc.
ISRegFlt64.sys	385990	Flexera Software Inc.
shdlpSf.sys	385970	Comtrue Technology
ctrPAMon.sys	385960	Comtrue Technology
shdlpMedia.sys	385950	Comtrue Technology
immflex.sys	385910	Immidio B.V.
StegoProtect.sys	385900	Stegosystems Inc
brfilter.sys	385890	Bromium Inc
BrCow_x_x_x_x.sys	385889	Bromium Inc
BemK.sys	385888	Bromium Inc
secRMM.sys	385880	Squadra Technologies
dgfilter.sys	385870	DataGravity Inc.
WFP_MRT.sys	385860	FireEye Inc
klrsps.sys	385815	Kaspersky Lab
klsnsr.sys	385810	Kaspersky Lab
TaniumRecorderDrv.sys	385800	Tanium
CdsgFsFilter.sys	385700	CRU Data Security Group
mssecflt.sys	385600	Microsoft
Backupreader.sys	385500	Microsoft
MsixPackagingToolMonitor.sys	385410	Microsoft
AppVMon.sys	385400	Microsoft
DpmFilter.sys	385300	Microsoft
Procmon11.sys	385200	Microsoft
minispy.sys - Top	385100	Microsoft
fdrtrace.sys	385001	Microsoft
filetrace.sys	385000	Microsoft
uwfreg.sys	384910	Microsoft
uwfs.sys	384900	Microsoft
locksmith.sys	384800	Microsoft
winload.sys	384700	Microsoft
SFPMonitor.sys - Top	383350	SonicWall Inc
FilrDriver.sys	383340	Micro Focus
rwchangedrv.sys	383330	Rackware
airship-filter.sys	383320	AIRWare Technology Ltd
AeFilter.sys	383310	Faronics Corporation
QQProtect.sys	383300	Tencent (Shenzhen)
QQProtectX64.sys	383300	Tencent (Shenzhen)
KernelAgent32.sys	383260	ZoneFox
WRDWIZFILEPROT.SYS	383251	WardWiz
WRDWIZREGPROT.SYS	383250	WardWiz
groundling32.sys	383200	Dell Secureworks
groundling64.sys	383200	Dell Secureworks
avgtpx86.sys	383190	AVG Technologies CZ
avgtpx64.sys	383190	AVG Technologies CZ
DataNow_Driver.sys	383182	AppSense Ltd
UcaFltDriver.sys	383180	AppSense Ltd
YFSD2.sys	383170	Yokogawa Corpration
Kisknl.sys	383160	kingsoft
MWatcher.sys	383150	Neowiz Corporation
tsifilemon.sys	383140	Intercom Inc.
FIM.sys	383130	eIQnetworks Inc.
cFSfdrv	383120	Chaewool
ajfsprot.sys	383110	Analytik Jena AG
isafermon	383100	(c)SMS
kfac.sys	383000	Beijing CA-JinChen Software Co.
GUMHFilter.sys	382910	Glarysoft Ltd.
PsAcFileAccessFilter.sys	382902	FUJITSU SOFTWARE
FJGSDis2.sys	382900	FUJITSU LIMITED
secure_os.sys	382890	FUJITSU SOCIAL SCIENCE
ibr2fsk.sys	382880	FUJITSU ENGINEERING
FJSeparettiFilterRedirect.sys	382860	FUJITSU LIMITED
Fsw31rj1.sys	382855	FUJITSU LIMITED
da_ctl.sys	382850	FUJITSU LIMITED
zqFilter.sys	382800	magrasoft Ltd
ntps_fa.sys	382700	NTP Software
sConnect.sys	382600	I-O DATA DEVICE
AdaptivaClientCache32.sys	382500	Adaptiva
AdaptivaclientCache64.sys	382500	Adaptiva
phantomd.sys	382440	Veramine Inc
GoFSMF.sys	382430	Gorizonty Rosta Ltd
SWCommFltr.sys	382420	SnoopWall LLC
atflt.sys	382410	Atlansys Software
amfd.sys	382400	Atlansys Software
iSafeKrnl.sys	382390	Elex Tech Inc
iSafeKrnlMon.sys	382380	Elex Tech Inc
AtdrAgent.sys	382325	360 Software (Beijing)
AtdrAgent64.sys	382325	360 Software (Beijing)
Qutmdrv.sys	382320	360 Software (Beijing)
360box.sys	382310	Qihoo 360
360fsflt.sys	382300	Beijing Qihoo Technology Co.
scred.sys	382210	SoftCamp Co.
PDGenFam.sys	382200	Soluto LTD
MCFileMon64.sys (x64 systems)	382100	Sumitomo Electric Ltd.
MCFileMon32.sys (x32 systems)	382100	Sumitomo Electric Ltd.
RyGuard.sys	382050	SHENZHEN UNNOO Information Techco.
FileShareMon.sys	382040	SHENZHEN UNNOO Information Techco.
ryfilter.sys	382030	SHENZHEN UNNOO Information Techco.
secufile.sys	382020	Shenzhen Unnoo LTD
XiaobaiFs.sys	382010	Shenzhen Unnoo LTD
XiaobaiFsR.sys	382000	Shenzhen Unnoo LTD
TWBDCFilter.sys	381910	Trustwave
VPDrvNt.sys	381900	AhnLab, Inc.
eetd32.sys	381800	Entrust Inc.
eetd64.sys	381800	Entrust Inc.
dnaFSMonitor.sys	381700	Dtex Systems
iwhlp2.sys on 2000	381610	InfoWatch
iwhlpxp.sys on XP	381610	InfoWatch
iwhlp.sys on Vista	381610	InfoWatch
iwdmfs.sys	381600	InfoWatch
IronGateFD.sys	381500	rubysoft
MagicBackupMonitor.sys	381400	Magic Softworks, Inc.
Sonar.sys	381337	IKARUS Security
IPFilter.sys	381310	Jinfengshuntai
MSpy.sys	381300	Ladislav Zezula
inuse.sys	381200	March Hare Software Ltd
qfmon.sys	381190	Quality Corporation
flyfs.sys	381160	NEC Soft
serfs.sys	381150	NEC Soft
hdrfs.sys	381140	NEC Soft
UVMCIFSF.sys	381130	NEC Corporation
ICFClientFlt.sys	381120	NEC System Technologies,Ltd.
IccFileIoAd.sys	381110	NEC System Technologies,Ltd.
IccFilterAudit.sys	381100	NEC System Technologies
IccFilterSc.sys	381090	InfoCage
Sefo.sys - Top	381010	Solusseum Inc
mtsvcdf.sys	381000	CristaLink
SDDrvLdr.sys	380970	Aliaksander Lebiadzevich
SQLsafeFilterDriver.sys	380901	Idera Software
IderaFilterDriver.sys	380900	Idera
cbfilter20.sys	380852	SN Systems Ltd
cbfsfilter2017.sys	380850	SN Systems Ltd
xhunter1.sys	380800	Wellbia․com
iGuard.sys	380720	i-Guard SAS
cbfltfs4.sys	380715	Nomadesk
cbfltfs4.sys	380710	Backup Systems Ltd
PkgFilter.sys	380700	Scalable Software Inc.
snimg.sys	380600	Softnext Technologies
SK.sys	380520	HEAT Software
cbfsfilter2017.sys	380515	Kits Ltd.
mpxmon.sys	380510	Positive Technologies
filenamevalidator.sys	380502	Infotecs
KC3.sys	380500	Infotecs
PLPOffDrv.sys	380492	SK Infosec Co
ISFPDrv.sys	380491	SK Infosec Co
ionmonwdrv.sys	380490	SK Infosec Co
Sefo.sys - Middle	380480	Solusseum Inc
sagntflt.sys	380470	ShinNihonSystec Co
VrVBRFsFilter.sys	380461	Hauri Inc
VrExpDrv.sys	380460	Hauri Inc
srminifilterdrv.sys	380450	Citrix Systems
zzpensys.sys	380440	Zhuan Zhuan Jing Shen
tedrdrv.sys	380430	Palo Alto Networks
fangcloud_autolock_driver.sys	380420	Hangzhou Yifangyun
FASDriver	380410	Tech Research
kFileFlt.sys	380405	AsiaInfo Technologies
CbSampleDrv.sys	380020	Microsoft
CbSampleDrv.sys	380010	Microsoft
CbSampleDrv.sys	380000	Microsoft
simrep.sys	371100	Microsoft
change.sys	370160	Microsoft
delete_flt.sys	370150	Microsoft
SmbResilFilter.sys	370140	Microsoft
usbtest.sys	370130	Microsoft
NameChanger.sys	370120	Microsoft
failMount.sys	370110	Microsoft
failAttach.sys	370100	Microsoft
stest.sys	370090	Microsoft
cdo.sys	370080	Microsoft
ctx.sys	370070	Microsoft
fmm.sys	370060	Microsoft
cancelSafe.sys	370050	Microsoft
message.sys	370040	Microsoft
passThrough.sys	370030	Microsoft
nullFilter.sys	370020	Microsoft
ntest.sys	370010	Microsoft
minispy.sys - Middle	370000	Microsoft
AvaPsFD.sys	368540	Avanite Limited
isecureflt.sys	368530	iSecure Ltd.
SFPMonitor.sys - Middle	368520	SonicWall Inc
wats_se.sys	368510	Fujian Shen Kong
secure_os_mf.sys	368500	HAURI
FileMonitor.sys	368470	Cygna Labs
asiofms.sys	368460	Encourage Technologies
cbfsfilter2017.sys	368450	Absolute Software
FileHubAgent.sys	368440	SmartFile LLC
pfracdrv.sys	368430	NURILAB
nrcomgrdki.sys	368420	NURILAB
nrcomgrdka.sys	368420	NURILAB
nrpmonki.sys	368410	NURILAB
nrpmonka.sys	368410	NURILAB
nravwka.sys	368400	NURILAB
bhkavki.sys	368390	NURILAB
bhkavka.sys	368390	NURILAB
docvmonk.sys	368380	NURILAB
docvmonk64.sys	368380	NURILAB
InvProtectDrv.sys	368370	Invincea
InvProtectDrv64.sys	368370	Invincea
browserMon.sys	368360	Adtrustmedia
SfdFilter.sys	368350	Sandoll Communication
phdcbtdrv.sys	368340	PHD Virtual Tech Inc.
sysdiag.sys	368330	HeroBravo Technology
wlminisecmod.sys	368329	Winicssec Ltd
WntGPDrv.sys	368327	Winicssec Ltd
edrdrv.sys	368325	Nurd Yazilim A.S.
CmdCwagt.sys	368322	Comodo Security Solutions Inc.
cfrmd.sys	368320	Comodo Security Solutions Inc.
repdrv.sys	368310	Vision Solutions
repmon.sys	368300	Vision Solutions
cvofflineFlt32.sys	368200	Quantum Corporation.
cvofflineFlt64.sys	368200	Quantum Corporation.
DsDriver.sys	368100	Warp Disk Software
nlcbhelpx86.sys	368000	NetLib
nlcbhelpx64.sys	368000	NetLib
nlcbhelpi64.sys	368000	NetLib
wbfilter.sys	367950	Whitebox Security
LRAgentMF.sys	367900	LogRhythm Inc.
Drwebfwflt.sys	367810	Doctor Web
EventMon.sys	367800	Doctor Web
dsfltfs.sys	367760	Digitalsense Co
soidriver.sys	367750	Sophos Plc
drvhookcsmf.sys	367700	GrammaTech, Inc.
drvhookcsmf_amd64.sys	367700	GrammaTech, Inc.
RevoNetDriver.sys	367650	J's Communication Co.
avipbb.sys	367600	Avira GmbH
FileSightMF.sys	367500	PA File Sight
csaam.sys	367400	Cisco Systems
FSMon.sys	367300	1mill
AccessValidator.sys	367200	Shanghai YiCun Network Tech Co. Ltd
filefilter.sys	367100	Beijing Zhong Hang Jiaxin Computer Technology Co.,Ltd.
iiscache.sys	367000	Microsoft
nowonmf.sys	366993	Diskeeper Corporation
dktlfsmf.sys	366992	Diskeeper Corporation
DKDrv.sys	366991	Diskeeper Corporation
DKRtWrt.sys - temp fix for XPSP3	366990	Diskeeper Corporation
HBFSFltr.sys	366980	Diskeeper Corporation
xoiv8x64.sys	366940	Arcserve
xomfcbt8x64.sys	366930	CA
KmxAgent.sys	366920	CA
KmxFile.sys	366910	CA
KmxSbx.sys	366900	CA
PointGuardVistaR32.sys	366810	Futuresoft
PointGuardVistaR64.sys	366810	Futuresoft
PointGuardVistaF.sys	366800	Futuresoft
PointGuardVista64F.sys	366800	Futuresoft
vintmfs.sys	366789	CondusivTechnologies
hiofs.sys	366782	Condusiv Technologies
intmfs.sys	366781	CondusivTechnologies
excfs.sys	366780	CondusivTechnologies
zampit_ml.sys	366700	Zampit
TenRSafe2.sys	366669	Tencent Technology
tesxporter.sys	366667	Tencent Technology
tesxnginx.sys	366666	Tencent Technology
rflog.sys	366600	AppStream, Inc.
csmon.sys	366582	CyberSight Inc
mumdi.sys	366540	ZenmuTech Inc.
LivedriveFilter.sys	366500	Livedrive Internet Ltd
regmonex.sys	366410	Tranxition Corp
TXRegMon.sys	366400	Tranxition Corp
SDVFilter.sys	366300	Soliton Systems K.K.
eLock2FSCTLDriver.sys	366210	Egis Technology Inc.
msiodrv4.sys	366200	Centennial Software Ltd
mmPsy32.sys	366110	Resplendence Software Projects
mmPsy64.sys	366110	Resplendence Software Projects
rrMon32.sys	366100	Resplendence Software Projects
rrMon64.sys	366100	Resplendence Software Projects
cvsflt.sys	366000	March Hare Software Ltd
ktsyncfsflt.sys	365920	KnowledgeTree Inc.
nvmon.sys	365900	NetVision, Inc.
SnDacs.sys	365810	Informzaschita
SnExequota.sys	365800	Informzaschita
llfilter.sys	365700	SecureAxis Software
hafsnk.sys	365660	HA Unix Pt
DgeDriver.sys	365655	Dell Software Inc.
BWFSDrv.sys	365650	Quest Software Inc.
CAADFlt.sys	365601	Quest Software Inc.
QFAPFlt.sys	365600	Quest Software
XendowFLT.sys	365570	Credant Technologies
fmdrive.sys	365500	Cigital, Inc.
EGMinFlt.sys	365400	WhiteCell Software Inc.
it2reg.sys	365315	Soliton Systems
it2drv.sys	365310	Soliton Systems
solitkm.sys	365300	Soliton Systems
pgpwdefs.sys	365270	Symantec
GEProtection.sys	365260	Symantec
diflt.sys	365260	Symantec Corp.
sysMon.sys	365250	Symantec
ssrfsf.sys	365210	Symantec
emxdrv2.sys	365200	Symantec
reghook.sys	365150	Symantec
spbbcdrv.sys	365100	Symantec
bhdrvx86.sys	365100	Symantec
bhdrvx64.sys	365100	Symantec
symevnt.sys	365090	Broadcom
symevnt32.sys	365090	Broadcom
SISIPSFileFilter	365010	Symantec
symevent.sys	365000	Symantec
wrpfv.sys	364900	Microsoft
UpGuardRealTime.sys	364810	UpGuard
usbl_ifsfltr.sys	364800	SecureAxis
ntfsf.sys	364700	Sun&Moon Rise
BssAudit.sys	364600	ByStorm
GPMiniFIlter.sys	364500	Kalpataru
AlfaFF.sys	364400	Alfa
FSAFilter.sys	364300	ScriptLogic
GcfFilter.sys	364200	GemacmbH
FFCFILT.SYS	364100	FFC Limited
msnfsflt.sys	364000	Microsoft
mblmon.sys	363900	Packeteer
amsfilter.sys	363800	Axur Information Sec.
rswctrl.sys	363713	Douzone Bizon Co
mcstrg.sys	363712	Douzone Bizon Co
fmkkc.sys	363711	Douzone Bizon Co
nmlhssrv01.sys	363710	Douzone Bizon Co
equ8_helper.sys	363705	Int3 Software AB
strapvista.sys (retired)	363700	AvSoft Technologies
SAFE-Agent.sys	363636	SAFE-Cyberdefense
EstPrmon.sys	363610	ESTsoft corp.
Estprp.sys - 64bit	363610	ESTsoft corp.
EstRegmon.sys	363600	ESTsoft corp.
EstRegp.sys - 64bit	363600	ESTsoft corp.
agfsmon.sys	363530	TechnoKom Ltd.
NlxFF.sys	363520	OnGuard Systems LLC
Sahara.sys	363511	Safend
Santa.sys	363510	Safend
vfdrv.sys	363500	Viewfinity
topdogfsfilt.sys	363450	ManTech
sfac.sys	363420	SoulFrost
xhunter64.sys	363400	Wellbia.com
uncheater.sys	363390	Wellbia.com
AuditFlt.sys	363313	Ionx Solutions LLP
SPIMiniFilter.sys	363300	Software Pursuits Inc.
mracdrv.sys	363230	Mail․Ru
BEDaisy.sys	363220	BattlEye Innovations
MPKernel.sys	363210	Lovelace Network Tech
NetAccCtrl.sys	363200	LINK co.
NetAccCtrl64.sys	363200	LINK co.
bzsenyaradrv.sys	363142	BiZone LLC
bzsenspdrv.sys	363141	BiZone LLC
bzsenth.sys	363140	BiZone LLC
hpreg.sys	363130	HP
QMON.sys	363122	Qualys Inc.
qfimdvr.sys	363120	Qualys Inc.
QDocumentREF.sys	363110	BicDroid Inc.
dsfemon.sys	363100	Topology Ltd
AmznMon.sys	363030	Amazon Web Services Inc
iothorfs.sys	363020	ioScience
ctamflt.sys	363010	ComTrade
psisolator.sys	363000	SharpCrafters
QmInspec.sys	362990	Beijing QiAnXin Tech.
HVLMinifilter.sys	362980	HAVELSAN A.Ş
GagSecurity.sys	362970	Beijing Shu Yan Science
vfpd.sys	362962	CyberArk Software
CybKernelTracker.sys	362960	CyberArk Software
filemon.sys	362950	Temasoft S.R.L.
SCAegis.sys	362940	Sogou Ltd.
fpepflt.sys	362930	ForcePoint LLC.
klifks.sys	362902	Kaspersky Lab
klifaa.sys	362901	Kaspersky Lab
Klifsm.sys	362900	Kaspersky Lab
Spotlight.sys	362870	Cigent Technology Inc
nxrmflt.sys	362860	NextLabs
vast.sys	362850	PolyLogyx LLC
AALProtect.sys	362840	AlphaAntiLeak
egnfsflt.sys	362830	Egnyte Inc
RsFlt.sys	362820	Redstor Limited
CentrifyFSF.sys	362810	Centrify Corp
Sefo.sys - Bottom	362800	Solusseum Inc
proggerdriver.sys	362790	WaikatoLink Ltd
imfilter.sys	362780	ITsMine
SFPMonitor.sys - Bottom	362700	SonicWall Inc
minispy.sys - Bottom	361000	Microsoft

340000 - 349999: FSFilter Undelete

Minifilter	Altitude	Company
BSSFlt.sys	346000	Blue Shoe Software LLC
ThinIO.sys	345900	ThinScale Technology
hmpalert.sys	345800	SurfRight
nsffkmd64.sys	345700	NetSTAR Inc.
nsffkmd32.sys	345700	NetSTAR Inc.
xbprocfilter.sys	345600	Zrxb
ifileguard.sys	345500	I-O DATA DEVICE, INC.
undelex32.sys	345400	Resplendence Software Projects
undelex64.sys	345400	Resplendence Software Projects
starmon.sys	345300	Kantowitz Engineering, Inc.
mxRCycle.sys	345200	Avanquest
UdFilter.sys	345100	Diskeeper Corporation
it2prtc.sys	345040	Soliton Systems K.K.
SolRegFilter.sys	345030	Soliton Systems K.K.
SolSecBr.sys	345020	Soliton Systems K.K.
SolFCLLi.sys	345010	Soliton Systems K.K.
WinSetupMon.sys	345102	Microsoft
SolFCL.sys	345000	Soliton Smart Sec
DCVPr.sys	340700	SecurStar GmbH

320000 - 329998: FSFilter Anti-Virus

Minifilter	Altitude	Company
tbmninifilter.sys	329370	Confluera Inc
trfsfilter.sys	329360	NetSecurity Corp
ReveFltMgr.sys	329350	REVE Antivirus
ReveProcProtection.sys	329340	REVE Antivirus
zwPxeSvr.sys	329330	SecureLink Inc.
zwASatom.sys	329320	SecureLink Inc.
wscm.sys	329310	Fujitsu Social Science
IMFFilter.sys	329300	IObit Information Tech
CSFlt.sys	329290	ConeSecurity Inc
PWProtect.sys	329250	PerfectWorld Ltd
Osiris.sys	329240	Binary Defense Systems
ospfile_mini.sys	329230	OKUMA Corp
SoftFilterxxx.sys	329222	WidgetNuri Corp
RansomDefensexxx.sys	329220	WidgetNuri Corp
RanPodFS.sys	329210	Pooyan System
ksfsflt.sys	329200	Beijing Kingsoft
DeepInsFS.sys	329190	Deep Instinct
AppCheckD.sys	329180	CheckMAL Inc
spellmon.sys	329170	SpellSecurity
WhiteShield.sys	329160	Meidensha Corp
reaqtor.sys	329150	ReaQta Ltd.
SE46Filter.sys	329140	Technology Nexus AB
FileScan.sys	329130	NPcore Ltd
ECATDriver.sys	329120	EMC
pfkrnl.sys	329110	FXSEC LTD
epicFilter.sys	329100	Hidden Reflex
EdnemFsFilter.sys	329090	Dakota State University
b9kernel.sys	329050	Bit9 Inc
eeCtrl.sys	329010	symantec
eraser.sys (Retired)	329010	symantec
SRTSP.sys	329000	symantec
SRTSPIT.sys - ia64 systems	329000	symantec
SRTSP64.SYS - x64 systems	329000	symantec
a2ertpx86.sys	328920	Emsi Software GmbH
a2ertpx64.sys	328920	Emsi Software GmbH
a2gffx86.sys - x86	328910	Emsi Software GmbH
a2gffx64.sys - x64	328910	Emsi Software GmbH
a2gffi64.sys - IA64	328910	Emsi Software GmbH
a2acc.sys	328900	Emsi Software GmbH
a2acc64.sys on x64 systems	328900	Emsi Software GmbH
FlightRecorder.sys	328850	Malwarebytes Corp.
si32_file.sys	328810	Scargo Inc
si64_file.sys	328810	Scargo Inc
mbam.sys	328800	Malwarebytes Corp.
lnvscenter.sys	328780	Lenovo
EnigmaFileMonDriver.sys	328770	EnigmaSoft
KUBWKSP.sys	328750	Netlor SAS
hcp_kernel_acq.sys	328740	refractionPOINT
SegiraFlt.sys	328730	Segira LLC
wdocsafe.sys	328722	Cheetah Mobile Inc.
lbprotect.sys	328720	Cheetah Mobile Inc.
eamonm.sys	328700	ESET, spol. s r.o.
klam.sys	328650	Kaspersky Lab
MaxProc64.sys	328620	Max Secure Software
MaxProtector.sys	328610	Max Secure Software
maxcryptmon.sys	328601	Max Secure Software
SDActMon.sys	328600	Max Secure Software
TmKmSnsr.sys	328550	Trend Micro Inc.
fileflt.sys	328540	Trend Micro Inc.
TmEsFlt.sys	328530	Trend Micro Inc.
TmEyes.sys	328520	Trend Micro Inc.
tmevtmgr.sys	328510	Trend Micro Inc.
tmpreflt.sys	328500	Trend
vcMFilter.sys	328400	SGRI Co., LTD.
SAFsFilter.sys	328300	Lightspeed Systems Inc.
vsepflt.sys	328200	VMware, Inc.
VFileFilter.sys(renamed)	328200	VMware, Inc.
sfavflt.sys	328130	Sangfor Technologies
sfavflt.sys	328120	Sangfor Technologies
drivesentryfilterdriver2lite.sys	328100	DriveSentry Inc
WdFilter.sys	328010	Microsoft
mpFilter.sys	328000	Microsoft
vrSDetri.sys	327801	ETRI
vrSDetrix.sys	327800	ETRI
AhkSvPro.sys	327720	Ahkun Co.
AhkUsbFW.sys	327710	Ahkun Co.
AhkAMFlt.sys	327700	Ahkun Co.
majoradvapi.sys	327680	Beijing Majorsec
PSINPROC.SYS	327620	Panda Security
PSINFILE.SYS	327610	Panda Security
amfsm.sys - Windows XP/2003 x64	327600	Panda Security
amm8660.sys - Windows Vista x86	327600	Panda Security
amm6460.sys - Windows Vista x64	327600	Panda Security
PerfectWorldAntiCheatSys.sys	327560	Perfect World Co. Ltd
ADSpiderDoc.sys	327550	Digitalonnet
BkavAutoFlt.sys	327542	Bkav Corporation
BkavSdFlt.sys	327540	Bkav Corporation
easyanticheat.sys	327530	EasyAntiCheat Solutions
5nine.cbt.sys	327520	5nine Software Inc.
caavFltr.sys	327510	Computer Assoc
ino_fltr.sys	327500	Computer Assoc
SECOne_USB.sys	327426	GRGBanking Equipment
SECOne_Proc10.sys	327424	GRGBanking Equipment
SECOne_REG10.sys	327422	GRGBanking Equipment
SECOne_FileMon10.sys	327420	GRGBanking Equipment
WCSDriver.sys	327410	White Cloud Security
360qpesv.sys	327404	360 Software (Beijing)
dsark.sys	327402	Qihoo 360
360avflt.sys	327400	Qihoo 360
sciptflt.sys	327334	SECUI Corporation
scifsflt.sys	327333	SECUI Corporation
ANVfsm.sys	327310	Arcdo
CDrRSFlt.sys	327300	Arcdo
mfdriver.sys	327250	Imperva Inc.
EPSMn.sys	327200	SGA
TxFileFilter.sys	327160	Beijing Venus
VTSysFlt.sys	327150	Beijing Venus
TesMon.sys	327130	Tencent
QQSysMonX64.sys	327125	Tencent
QQSysMon.sys	327120	Tencent
TSysCare.sys	327110	Shenzhen Tencent Computer Systems Company Limited
TFsFlt.sys	327100	Shenzhen Tencent Computer Systems Company Limited
avmf.sys	327000	Authentium
BDFileDefend.sys	326916	Baidu (beijing)
BDsdKit.sys	326914	Baidu online network technology (beijing)Co.
bd0003.sys	326912	Baidu online network technology (beijing)Co.
Bfilter.sys	326910	Baidu (Hong Kong) Limited
NeoKerbyFilter	326900	NeoAutus
egnfsflt.sys	326830	Egnyte Inc
RsFlt.sys	326820	Redstor Limited
trpmnflt.sys	326810	TRAPMINE A.S.
PLGFltr.sys	326800	Paretologic
WrdWizSecure64.sys	326730	WardWiz
wrdwizscanner.sys	326720	WardWiz
AshAvScan.sys	326700	Ashampoo GmbH & Co. KG
Zyfm.sys	326666	ZhengYong InfoTech LTD.
csaav.sys	326600	Cisco Systems
oavfm.sys	326550	HSM IT-Services Gmbh
SegMD.sys	326520	Segurmatica
SegMP.sys	326510	Segurmatica
SegF.sys	326500	Segurmatica
eeyehv.sys	326400	eEye Digital Security
eeyehv64.sys	326400	eEye Digital Security
CpAvFilter.sys	326311	CodeProof Technologies Inc
CpAvKernel.sys	326310	CodeProof Technologies Inc
NovaShield.sys	326300	Securitas Technologies,Inc.
SheedAntivirusFilterDriver.sys	326290	SheedSoft Ltd
bSyirmf.sys	326260	BLACKFORT SECURITY
bSysp.sys	326250	BLACKFORT SECURITY
bSydf.sys	326240	BLACKFORT SECURITY
bSywl.sys	326235	BLACKFORT SECURITY
bSyrtm.sys	326230	BLACKFORT SECURITY
bSyaed.sys	326220	BLACKFORT SECURITY
bSyar.sys	326210	BLACKFORT SECURITY
BdFileSpy.sys	326200	BullGuard
npxgd.sys	326160	INCA Internet Co.
npxgd64.sys	326160	INCA Internet Co.
tkpl2k.sys	326150	INCA Internet Co.
tkpl2k64.sys	326150	INCA Internet Co.
GKFF.sys	326140	INCA Internet Co.
GKFF64.sys	326140	INCA Internet Co.
tkdac2k.sys	326130	INCA Internet Co.
tkdacxp.sys	326130	INCA Internet Co.
tkdacxp64.sys	326130	INCA Internet Co.
tksp2k.sys	326120	INCA Internet Co.
tkspxp.sys	326120	INCA Internet Co.
tkspxp64.sys	326120	INCA Internet Co.
tkfsft.sys	326110	INCA Internet Co., Ltd
tkfsft64.sys - 64bit	326110	INCA Internet Co., Ltd
tkfsavxp.sys - 32bit	326100	INCA Internet Co., Ltd
tkfsavxp64.sys - 64bit	326100	INCA Internet Co., Ltd
SMDrvNt.sys	326040	AhnLab, Inc.
ATamptNt.sys	326030	AhnLab, Inc.
V3Flt2k.sys	326020	AhnLab, Inc.
V3MifiNt.sys	326010	Ahnlab
V3Ift2k.sys	326000	Ahnlab
V3IftmNt.sys (Old name)	326000	Ahnlab
ArfMonNt.sys	325990	Ahnlab
AhnRghLh.sys	325980	Ahnlab
AszFltNt.sys	325970	Ahnlab
OMFltLh.sys	325960	Ahnlab
V3Flu2k.sys	325950	Ahnlab
TfFregNt.sys	325940	AhnLab Inc.
AdcVcsNT.sys	325930	Ahnlab
vcdriv.sys	325820	Greatsoft Corp.Ltd
vcreg.sys	325810	Greatsoft Corp.Ltd
vchle.sys	325800	Greatsoft Corp.Ltd
NxFsMon.sys	325700	Novatix Corporation
AntiLeakFilter.sys	325600	Individual developer (Soft3304)
NanoAVMF.sys	325510	Panda Software
shldflt.sys	325500	Panda Software
nprosec.sys	325410	Norman ASA
nregsec.sys	325400	Norman ASA
issregistry.sys	325300	IBM
THFilter.sys	325200	Sybonic Systems Inc
pervac.sys	325100	PerSystems SA
avgmfx86.sys	325000	AVG Grisoft
avgmfx64.sys	325000	AVG Grisoft
avgmfi64.sys	325000	AVG Grisoft
avgmfrs.sys (retired)	325000	AVG Grisoft
FortiAptFilter.sys	324930	Fortinet Inc.
fortimon2.sys	324920	Fortinet Inc.
fortirmon.sys	324910	Fortinet Inc.
fortishield.sys	324900	Fortinet Inc.
mscan-rt.sys	324800	SecureBrain Corporation
sysdiag.sys	324600	Huorong Security
agentrtm64.sys	324510	WINS CO. LTD
rswmon.sys	324500	WINS CO. LTD
mwfsmfltr.sys	324420	MicroWorld Software Services Pvt. Ltd.
gtkdrv.sys	324410	GridinSoft LLC
GbpKm.sys	324400	GAS Tecnologia
crnsysm.sys	324310	Coranti Inc.
crncache32.sys	324300	Coranti Inc.
crncache64.sys	324300	Coranti Inc.
egambit.sys	324242	TEHTRI-Security
drwebfwft.sys	324210	Doctor Web
DwShield.sys	324200	Doctor Web
DwShield64.sys	324200	Doctor Web
IProtect.sys	324150	EveryZone Inc.
TvFiltr.sys	324140	EveryZone INC.
TvDriver.sys	324130	EveryZone INC.
TvSPFltr.sys	324120	EveryZone INC.
TvPtFile.sys	324110	EveryZone INC.
TvMFltr.sys	324100	Everyzone
SophosED.sys	324050	Sophos
SAVOnAccess.sys	324010	Sophos
savonaccess.sys	324000	Sophos
sld.sys	323990	Sophos
OADevice.sys	323900	Tall Emu
pwipf6.sys	323800	PWI, Inc.
EstRkmon.sys	323700	ESTsoft corp.
EstRkr.sys - 64bit	323700	ESTsoft corp.
dwprot.sys	323610	Doctor Web
Spiderg3.sys	323600	Doctor Web Ltd.
STKrnl64.sys	323500	Verdasys Inc
UFDFilter.sys	323400	Yoggie
SCFltr.sys	323300	SecurityCoverage, Inc.
fildds.sys	323200	Filseclab
fsfilter.sys	323100	MastedCode Ltd
fpav_rtp.sys	323000	f-protect
cwdriver.sys	322900	Leith Bade
AYFilter.sys	322810	ESTsoft
Rtw.sys	322800	ESTsoft
RSRtw.sys	322790	ESTsecurity Corp
RSPCRtw.sys	322780	ESTsecurity Corp
HookSys.sys	322700	Beijing Rising Information Technology Corporation Limited
snscore.sys	322600	S.N.Safe&Software
ssvhook.sys	322500	SecuLution GmbH
strapvista.sys	322400	AvSoft Technologies
strapvista64.sys	322400	AvSoft Technologies
sascan.sys	322300	SecureAge Technology
savant.sys	322200	Savant Protection, Inc.
VrARnFlt.sys	322161	HAURI
VrBBDFlt.sys	322160	HAURI
vrSDfmx.sys	322153	HAURI
vrSDfmx.sys	322152	HAURI
vrSDam.sys	322151	HAURI
vrSDam.sys	322150	HAURI
VRAPTFLT.sys	322140	HAURI Inc.
VrAptDef.sys	322130	HAURI
VrSdCore.sys	322120	HAURI
VrFsFtM.sys	322110	HAURI
VrFsFtMX.sys(AMD64)	322110	HAURI
vradfil2.sys	322100	HAURI
fsgk.sys	322000	f-secure
bouncer.sys	321950	CoreTrace Corporation
PCTCore64.sys	321910	PC Tools Pty. Ltd.
PCTCore.sys (Old name)	321910	PC Tools Pty. Ltd.
ikfilesec.sys	321900	PC Tools Pty. Ltd.
ZxFsFilt.sys	321800	Australian Projects
antispyfilter.sys	321700	C-NetMedia Inc
PZDrvXP.sys	321600	VisionPower Co.,Ltd.
ggc.sys	321510	Quick Heal TechnologiesPvt. Ltd.
catflt.sys	321500	Quick Heal TechnologiesPvt. Ltd.
snsrflt.sys	321495	Quick Heal Technologies Pvt. Ltd.
bdsflt.sys	321490	Quick Heal Technologies Pvt. Ltd.
arwflt.sys	321480	Quick Heal Technologies Pvt. Ltd.
csagent.sys	321410	CrowdStrike Ltd.
kmkuflt.sys	321400	Komoku Inc.
ntguard.sys	321337	IKARUS Security
epdrv.sys	321320	McAfee Inc.
mfencoas.sys	321310	McAfee Inc.
mfehidk.sys	321300	McAfee Inc.
swin.sys	321250	McAfee Inc.
CyvrFsfd.sys	321234	Palo Alto Networks
cmdccav.sys	321210	Comodo Group Inc.
cmdguard.sys	321200	Comodo Group Inc.
K7Sentry.sys	321100	K7 Computing Private Ltd.
nsminflt.sys	321050	NHN
nsminflt64.sys	321050	NHN
nvcmflt.sys	321000	Norman
dgsafe.sys	320950	KINGSOFT
issfltr.sys	320900	ISS
hbflt.sys	320840	BitDefender SRL
vlflt.sys	320832	BitDefender SRL
bdsvm.sys	320830	Bitdefender
gzflt.sys	320820	BitDefender SRL
bddevflt.sys	320812	BitDefender SRL
ignis.sys	320811	BitDefender SRL
AVCKF.SYS	320810	BitDefender SRL
bdfsfltr.sys	320800	Softwin
bdfm.sys	320790	Softwin
gemma.sys	320782	BitDefender SRL
Atc.sys	320781	BitDefender SRL
AVC3.SYS	320780	BitDefender SRL
TRUFOS.SYS	320770	BitDefender SRL
aswmonflt.sys	320700	Alwil
kavnsi.sys	320650	AVNOS
CiscoSAM.sys	320618	Cisco Systems
immunetselfprotect.sys	320616	Cisco Systems
immunetprotect.sys	320614	Cisco Systems
CiscoAMPCEFWDriver.sys	320612	Cisco Systems
CiscoAMPHeurDriver.sys	320610	Cisco Systems
HookCentre.sys	320602	G Data
PktIcpt.sys	320601	G Data
MiniIcpt.sys	320600	G Data
acdrv.sys	320520	OnMoon Company LLC
tmfsdrv2.sys	320510	Teramind
avgntflt.sys	320500	Avira GmbH
klam.sys	320450	Kaspersky Lab
klbg.sys	320440	Kaspersky
kldback.sys	320430	Kaspersky
kldlinf.sys	320420	Kaspersky
kldtool.sys	320410	Kaspersky
klif.sys	320401	Kaspersky Lab
klif.sys	320400	Kaspersky
klam.sys	320350	Kaspersky Lab
hsmltwhl.sys	320340	Hitachi Solutions
hssfwhl.sys	320330	Hitachi Solutions
DeepInsFS.sys	320323	Deep Instinct Ltd.
DeepInsFS.sys	320322	Deep Instinct Ltd.
DeepInsFS.sys	320321	Deep Instinct Ltd.
DeepInsFS.sys	320320	Deep Instinct Ltd.
avfsmn.sys	320310	Anvisoft
lbd.sys	320300	Lavasoft AB
pavdrv.sys	320210	Panzor Cybersecurity
rvsmon.sys	320200	CJSC Returnil Software
KawachFsMinifilter.sys	320160	Sequretek IT
securoFSD_x64.sys	320150	knowwheresoft Ltd
WRAEKernel.sys	320112	Webroot Inc.
WRKrn.sys	320111	Webroot Inc.
WRCore.sys	320110	Webroot Inc.
ssfmonm.sys	320100	Webroot Software, Inc.
ODFsFimFilter.sys	320070	Odyssey Cyber Security
ODFsTokenFilter.sys	320061	Odyssey Cyber Security
ODFsFilter.sys	320060	Odyssey Cyber Security
vk_fsf.sys	320050	AxBx
VirtualAgent.sys	320005	Symantec

300000 - 309998: FSFilter Replication

Minifilter	Altitude	Company
IntelCAS.sys	309100	Intel Corporation
mvfs.sys	309000	IBM Corporation
frxccd.sys	306000	FSLogix Inc.
dvfilter.sys	305002	Microsoft
fsrecord.sys	305000	Microsoft
InstMon.sys	304201	Numecent Inc.
StreamingFSD.sys	304200	Numecent Inc.
ubcminifilterdriver.sys	304100	Ullmore Ltd.
replistor.sys	304000	Legato
stfsd.sys	303900	Endeavors Technologies
xomf.sys	303800	CA (XOSOFT)
nfid.sys	303700	Neverfail Group Ltd
sybfilter.sys	303600	Sybase, Inc.
rfsfilter.sys	303500	Evidian
cvmfsj.sys	303400	CommVault Systems, Inc.
iOraFilter.sys	303300	Infonic plc
bkbmfd32.sys (x86)	303200	BakBone Software, Inc
bkbmfd64.sys (x64)	303200	BakBone Software, Inc
mblvn.sys	303100	Packeteer
AV12NFNT.sys	303000	AhnLab
mDP_win_mini.sys	302900	Macro Impact
ctxubs.sys	302800	Citrix Systems Inc.
rrepfsf.sys	302700	Rose Datasystems Inc
wsyncd.sys	302100	WANFast LLC
cbfsfilter2017.sys	301900	Super Flexible Software
AxFilter.sys	301800	Axcient Inc.
vxfsrep.sys	301700	Symantec
dellcapfd.sys	301600	Dell Inc.
Sptres.sys	301500	Safend
OfficeBackup.sys	301400	Ushus Technologies
LxFileMirror.sys	301350	Techit GmbH
pcvnfilt.sys	301300	Blue Coat
repdac.sys	301200	NSI
repkap.sys	301100	NSI
repdrv.sys	301000	NSI

280000 - 289998: FSFilter Continuous Backup

Minifilter	Altitude	Company
SyncODFA.sys	289010	Sync.com Inc
File_monitor.sys	289000	Acronis
Klcdp.sys	288900	Kaspersky Lab
splitinfmon.sys	288800	Split Infinity
versamatic.sys	288700	Acertant Tech
Yfilemon.sys	288690	Yarisoft
ibac.sys	288600	Idealstor, LLC.
fkdriver.sys	288500	Filekeeper
AAFileFilter.sys	288300	Dell Inc.
hyperoo.sys	288400	Hyperoo Ltd
HyperBacCA.sys	285000	Red Gate Software Ltd
ZMSFsFltr.sys	284400	Zenith InfoTech
AlfaSC.sys	284300	Alfa Corporation
hie_ifs.sys	284200	Hie Electronics, Inc.
AAFs.sys	284100	AppAssure Software
defilter.sys (old)	284000	Microsoft
aFsvDrv.sys	283100	ITSTATION Inc
tilana.sys	283000	Tilana Sys
VmDPFilter.sys	282900	Macro Impact
LbFilter.sys	281700	Linkverse S.r.l.
fbsfd.sys	281600	Ferro Software
dupleemf.sys	281500	Duplee SPI, S.L.
file_tracker.sys	281420	Acronis Inc.
exbackup.sys	281410	Acronis Inc.
afcdp.sys	281400	Acronis Inc.
dcefltr.sys	281300	Cofio Software Ltd
ipmrsync_mfilter.sys	281200	OpenMars Enterprises
cascade.sys	281100	JP Software
filearchive.sys	281000	Code Mortem
syscdp.sys	280900	System OK AB
dpnedriver.sys (x86)	280850	HP
dpnedriver64.sys (x64)	280850	HP
hpchgflt.sys	280800	HP
VirtFile.sys	280700	Veritas
DeqoCPS.sys	280600	Deqo
LV_Tracker.sys	280500	LiveVault
cpbak.sys	280410	Checkpoint Software
tdmonxp.sys	280400	TimeData
nvfr_cpd	280310	Bakbone Software Inc.
nvfr_fdd	280300	Bakbone Software Inc.
Sptbkp.sys	280290	Safend
accessmonitor.sys	280280	Briljant Ekonomisystem

260000 - 269998: FSFilter Content Screener

Minifilter	Altitude	Company
anrfsdrv.sys	268500	ANR Co. LTD.
taExeScanner.sys	268350	ITSTATION Inc.
GuardFSFlt.sys	268340	ProShield
usbguard.sys	268330	HangZhou Tease Tech
gibepdevflt.sys	268320	Group-IB LTD
EffeDriver.sys	268310	DROVA
Klshadow.sys	268300	Kaspersky Lab
TN28.sys	268290	ID Authentication Tech
PGDriver.sys	268280	Avecto Ltd
itseczvdb.sys	268270	Innotium Inc
isarsd.sys	268260	ISARS
zeoscanner.sys	268255	PCKeeper
fileHiders.sys	268250	PCKeeper
cbfltfs4-ObserveIT.sys	268240	ObserveIT
hipara.sys	268230	Allsum LLC
AliFileMonitorDriver.sys	268220	Alibaba
writeGuard.sys	268210	TCXA Ltd.
KKUDKProtectKer.sys	268200	Goldmessage technology co.
HAWKFIMInt.sys	268190	HAWK Network Defense
esaccctl.sys	268180	EgoSecure GmbH
WSguard.sys	268170	Wiper Software UAB
Atomizer.sys	268160	DragonFlyCodeWorks
farwflt.sys	268150	Malwarebytes
ADSpiderEx2.sys	268140	Digitalonnet
sdfilter.sys	268130	Igor Zorkov
Safe.sys	268120	rian@alum.mit.edu
mydlpdelete-scanner.sys	268110	Medra Teknoloji
mydlpscanner.sys	268100	Medra Teknoloji
hnpro.sys	268040	Solupia
DLDriverNetMini.sys	268030	DeviceLock Inc
ENFFLTDRV.sys	268020	Enforcive Systems
imagentpg.sys	268012	Infomaximum
crocopg.sys	268010	Infomaximum
sbapifs.sys	268000	Sunbelt Software
H6kernNT.sys	267920	H6N Technologies LLC
SGKD32.SYS	267910	NetSection Security
IccFilter.sys	267900	NEC System Technologies
tflbc.sys	267800	Tani Electronics Corporation
ArmFlt.sys	267000	Armor Antivirus
WBDrv.sys	266700	Axiana LLC
DMSamFilter.sys	266600	Digimarc Corp.
mumbl.sys	266540	ZenmuTech Inc.
5nine.cbt.sys	266100	5nine Software Inc.
bsfs.sys	266000	Quick Heal TechnologiesPvt. Ltd.
XXRegSFilter.sys	265910	Zhe Jiang Xinxin Software Tech.
XXSFilter.sys	265900	Zhe Jiang Xinxin Software Tech.
AloahaUSBBlocker.sys	265800	Wrocklage Intermedia
frxdrv.sys	265700	FSLogix Inc.
FolderSecure.sys	265600	Max Secure Software
XendowFLTC.sys	265570	Credant Technologies
RepDac	265500	Vision Solutions
tbbdriver.sys	265400	Tedesi
spcgrd.sys	265300	FUJITSU BROAD SOLUTION
fdtlock.sys	265250	FUJITSU BROAD SOLUTION & CONSULTING Inc.
ssfFSC.sys	265200	SECUWARE S.L.
GagSecurity.sys	265120	Beijing Shu Yan Science
PrintDriver.sys	265110	Beijing Shu Yan Science
activ.sys	265100	Rapidware Pty Ltd
avscan.sys	265010	Microsoft
scanner.sys	265000	Microsoft
DI_fs.sys	264910	Soft-SB
wgnpos.sys	264900	Orchestria
odfltr.sys	264810	NetClean Technologies
ncpafltr.sys	264800	NetClean Technologies
ct.sys	264700	Haute Secure
fvefsmf.sys	264600	Fortisphere, Inc.
block.sys	264500	Autonomy Systems Limited
csascr.sys	264400	Cisco Systems
SymAFR.sys	264300	Symantec Corporation
cwnep.sys	264200	Websense Inc.
spywareremover.sys	264150	C-Netmedia
malwarebot.sys	264140	C-Netmedia
antispywarebot.sys	264130	2Squared Inc.
adwarebot.sys	264120	AntiSpyware LLC
antispyware.sys	264110	AntiSpyware LLC
spywarebot.sys	264100	C-Netmedia
nomp3.sys	264000	Hamish Speirs (private developer)
dlfilter.sys	263900	Starfield Software
sifsp.sys	263800	Secure Islands Technologies LTD
DLFsFlt.sys	263700	CenterTools Software GmbH
SamKeng.sys	263600	Syvik Co, Ltd.
rml.sys	263500	Logis IT Service Gmbh
vfsmfd.sys	263410	Vontu Inc.
vfsmfd.sys	263400	Vontu Inc.
acfilter.sys	263300	Avalere, Inc.
psecfilter.sys	263200	MDI Laboratory, Inc.
SolRedirect.sys	263110	Soliton Systems
solitkm.sys	263100	Soliton Systems
ipcfs.sys	263000	NetVeda
netgateav_access.sys	262910	NETGATE Tech. s.r.o.
spyemrg_access.sys	262900	NETGATE Tech. s.r.o.
pxrmcet.sys	262800	Proxure Inc.
EgisTecFF.sys	262700	Egis Technology Inc.
fgcpac.sys	262600	Fortres Grand Corp.
saappctl.sys	262510	SecureAge Technology
sadlp.sys	262500	SecureAge Technology
CRExecPrev.sys	262410	Cybereason
PEG2.sys	262400	PE GUARD
AdminRunFlt.sys	262300	Simon Jarvis
wvscr.sys	262200	Chengdu Wei Tech Inc.
psepfilter.sys	262100	Absolute Software
SAMDriver.sys	262000	Summit IT
emrcore.sys	261920	Ivanti Inc
wire_fsfilter.sys	261910	ThreatSpike Labs
AMFileSystemFilter.sys	261900	AppSense Ltd
mtflt.sys	261880	mTalos Inc.
nxrmflt.sys	261680	NextLabs, Inc.
oc_fsfilter.sys	261300	Raiffeisen Bank Aval
hdlpflt.sys	261200	McAfee Inc.
CCFFilter.sys	261160	Microsoft
cbafilt.sys	261150	Microsoft
SmbBandwidthLimitFilter.sys	261110	Microsoft
DfsrRo.sys	261100	Microsoft
DataScrn.sys	261000	Microsoft
ldusbro.sys	260900	LANDesk Inc.
FileScreenFilter.sys	260800	Veritas
cpAcOnPnP.sys	260720	conpal GmbH
cpsgfsmf.sys	260710	conpal GmbH
psmmfilter.sys	260700	PolyServe
pctefa.sys	260650	PC Tools Pty. Ltd.
pctefa64.sys	260650	PC Tools Pty. Ltd.
SymEFASI64.sys	260620	NortonLifeLock Inc.
SymEFASI.sys	260620	NortonLifeLock Inc.
symefasi.sys	260610	Symantec Corporation
symefa.sys	260600	Symantec
symefa64.sys	260600	Symantec
apdFSF.sys	260550	Cyberbit Ltd
aictracedrv_cs.sys	260500	AI Consulting
DWFIxxxx.sys	260410	SciencePark Corporation
DWFIxxxx.sys	260400	SciencePark Corporation
DSDriver.sys	260330	ManageEngine Zoho Corp
mcfltlab.sys	260320	Beijing MicroColor
FDriver.sys	260310	Fox-IT
iqpk.sys	260300	Secure Islands Technologies LTD
ZTkrnlOpRg.sys	260264	Trustsoft
ZTkrnlNt.sys	260262	Trustsoft
ZTkrnl.sys	260260	Trustsoft
VHDFlt.sys	260240	Dell
VHDFlt.sys	260230	Dell
VHDFlt.sys	260220	Dell
VHDFlt.sys	260210	Dell

240000 - 249999: FSFilter Quota Management

Minifilter	Altitude	Company
ntps_qfs.sys	245100	NTP Software
PSSFsFilter.sys	245000	PSS Systems
Sptqmg.sys	245300	Safend
storqosflt.sys	244000	Microsoft

220000 - 229999: FSFilter System Recovery

Minifilter	Altitude	Company
file_protector.sys	227000	Acronis
fbwf.sys	226000	Microsoft
hmpalert.sys	221600	SurfRight
Klsysrec.sys	221500	Kaspersky Lab
SFDRV.SYS	221400	Utixo LLC
sp_prot.sys	221300	Xacti Corporation
nsfilep.sys	221200	Netsupport Limited
syscow.sys	221100	System OK AB
fsredir.sys	221000	Microsoft

200000 - 209999: FSFilter Cluster File System

Minifilter	Altitude	Company
CVCBT.sys	203400	CommVault Systems, Inc.
ResumeKeyFilter.sys	202000	Microsoft
VeeamFCT.sys	201900	Veeam Software
ShadowVirtualStorage.sys	201800	Blade SAS

180000 - 189999: FSFilter HSM

Minifilter	Altitude	Company
wcifs.sys	189900	Microsoft
prjflt.sys	189800	Microsoft
gameflt.sys	189750	Microsoft
nvmsqrd.sys	188900	NVIDIA Corporation
Ghost_file.sys	188800	Acronis
RsFlt.sys	187000	Redstor Limited
mnefs.sys	186800	Nippon Techno Lab
Svfsf.sys	186700	Spharsoft Technologies
uVaultFlt.sys	186650	DOR
syncmf.sys	186620	Oxygen Cloud
gwmemory.sys	186600	Macrotec LLC
cteraflt.sys	186550	CTERA Networks Ltd.
dbx.sys	186500	Dropbox Inc.
iMDrvFlt.sys	186450	iManage LLC
quaddrasi.sys	186400	Quaddra Software
gdrive.sys	186300	Google
CoreSyncFilter.sys	186250	Adobe Systems Inc.
EaseTag.sys	186200	EaseVault Technologies Inc.
HSFilter.sys	186150	HubStor Inc.
hcminifilter.sys	186100	Happy Cloud Inc.
PDFsFilter.sys	186000	Raxco Sfotware Inc.
camino.sys	185900	CaminoSoft Corp
C2C_AF1R.SYS	185810	C2C Systems
DFdriver.sys	185800	DataFirst Corporation
amfadrv.sys	185700	Quest Software Inc.
HSMdriver.sys	185600	Wim Vervoorn
kdfilter.sys	185555	Komprise Inc.
htdafd.sys	185500	Bridgehead Soft
odphflt.sys	180455	Microsoft
cldflt.sys	180451	Microsoft
SymHsm.sys	185400	Symantec
evmf.sys	185100	Symantec
otfilter.sys	185000	Overtone Soft
ithsmdrv.sys	184900	IBM
MfaFilter.sys	184800	Waterford Technologies
SonyHsmMinifilter.sys	184700	Sony Corporation
acahsm.sys	184600	Autonomy Corporation
zlhsm.sys	184500	ZL Technologies
CFileProtect.sys	184100	Zhejiang Security Tech
stc_restore_filter.sys	184000	StorageCraft Technology
dvfilter.sys	183003	Microsoft
Accesstracker.sys	183002	Microsoft
Changetracker.sys	183001	Microsoft
Fstier.sys	183000	Microsoft
hsmcdpflt.sys	182700	Metalogix
archivmgr.sys	182690	Metalogix
ntps_oddm.sys	182600	NTP Software
XDFileSys.sys	182500	XenData Limited
upmjit.sys	182400	Citrix Systems
AtmosFS.sys	182310	EMC Corporation
DxSpy.sys	182300	EMC Software Inc.
car_hsmflt.sys	182200	Caringo, Inc.
BRDriver.sys	182100	BitRaider
BRDriver64.sys	182100	BitRaider
autnhsm.sys	182000	Autonomy Corporation
cthsmflt.sys	181970	ComTrade
NxMini.sys	181900	NEXSAN
neuflt.sys	181818	NeuShield
npfdaflt.sys	181800	Mimosa Systems Inc
AppStream.sys	181700	AppStream, Inc.
HPEDpHsmX64.sys	181620	Hewlett-Packard, Co.
HPArcHsmX64.sys	181610	Hewlett-Packard, Co.
hphsmflt.sys	181600	Hewlett-Packard, Co.
cparchsm.sys	181610	Micro Focus
RepHsm.sys	181500	Double-Take Software, Inc.
RepSIS.sys	181490	Double-Take Software
SquashCompressionFsFilter.sys	181410	Squash Compression
GXHSM.sys	181400	Commvault Systems, Inc
EdsiHsm.sys	181300	Enterprise Data Solutions, Inc.
BkfMap.sys	181200	Data Storage Group
hsmfilter.sys	181100	GRAU Data Storage AG
mwilcflt.sys	181020	Moonwalk Universal P/L
mwildflt.sys	181015	Moonwalk
mwilsflt.sys	181010	Moonwalk Universal P/L
mwidmflt.sys	181000	Moonwalk Universal P/L
HcpAwfs.sys	181960	Hitachi Data Systems
sdrefltr.sys	180950	Hitachi Data Systems
fltasm.sys	180900	Global 360
cnet_hsm.sys	180850	Carroll-Net Inc.
pntvolflt.sys	180800	PoINT Software&Systems
appxstrm.sys	180710	Microsoft
wimmount.sys	180700	Microsoft
hsmflt.sys	180600	Microsoft
dfsrflt.sys	180500	Microsoft
StorageSyncGuard.sys	180465	Microsoft
StorageSync.sys	180460	Microsoft
dedup.sys	180450	Microsoft
dfmflt.sys	180410	Microsoft
sis.sys	180400	Microsoft
rbt_wfd.sys	180300	Riverbed Technology,Inc

170000 - 174999: FSFilter Imaging (ex: .ZIP)

Minifilter	Altitude	Company
pfmfs_???.sys	172100	Pismo Technic Inc
virtual_file.sys	172000	Acronis
wimFltr.sys	170500	Microsoft

160000 - 169999: FSFilter Compression

Minifilter	Altitude	Company
CmgFFC.sys	166000	Credant Technologies
compress.sys	165000	Microsoft
cmpflt.sys	162000	Microsoft
IridiumIO.sys	161700	Confio
logcompressor.sys	161600	VelociSQL Inc.
GcfFilter.sys	161500	GemacmbH
ssddoubler.sys	161400	Sinan Karaca
Sptcmp.sys	161300	Safend
wimfsf.sys	161000	Microsoft
GEFCMP.sys	160100	Symantec

140000 - 149999: FSFilter Encryption

Minifilter	Altitude	Company
AAFS.sys	149110	ViGero
FJSeparettiFilterRamMon.sys	149100	FUJITSU LIMITED
trsxefs.sys	149060	TransientX Inc.
psatfilter.sys	149050	ProYuga
RdFilter.sys	149040	CyberEye Research Labs
gisfile_decryption.sys	149030	Communication U China
TIFSFilter.sys	149020	SG Corporation
OsrDt2.sys	149010	Information Security Corp
EasyKryptMF.sys	149000	SoftKrypt LLC
padlock.sys	148910	IntSoft Inc.
ffecore.sys	148900	Winmagic
bkfs.sys	148880	Hangzhou JoyBlock Ltd
fangcloud.sys	148860	Hangzhou Yifangyun
klvfs.sys	148810	Kaspersky Lab
Klfle.sys	148800	Kaspersky Lab
ISFP.sys	148701	ALPS SYSTEM INTEGRATIO
ISIRM.sys	148700	ALPS SYSTEM INTERGRATION CO.
ASUSSecDrive.sys	148650	ASUS
ABFilterDriver.sys	148640	AlertBoot
QDocumentFSF.sys	148630	BicDroid Inc.
bfusbenc.sys	148620	bitFence Inc.
sztgbfsf.sys	148610	SaferZone Co.
mwIPSDFilter.sys	148600	Egis Technology Inc.
csccvdrv.sys	148500	Computer Sciences Corporation
aefs.sys	148400	Angelltech Corporation Xi'an
VTEFsFlt.sys	148374	EsComputer Corp
IWCSEFlt.sys	148300	InfoWatch
GDDmk.sys	148250	G Data Software AG
clcxcore.sys	148210	AFORE Solutions Inc.
OrisLPDrv.sys	148200	CGS Publishing Tech
nlemsys.sys	148100	NETLIB
prvflder.sys	148000	Microsoft
ssefs.sys	147900	SecuLution GmbH
SePSed.sys	147800	Humming Heads, Inc.
dlmfencx.sys	147700	Data Encryption Ltd
SkyDEnc.sys	147620	Sky Co Ltd
psgcrypt.sys	147610	Yokogawa R&L Corp
bbfsflt.sys	147600	Bloombase
qx10efs.sys	147500	Quixxant
MEfefs.sys	147400	Eruces Inc.
medlpflt.sys	147310	Check Point Software Technologies Ltd
dsfa.sys	147308	Check Point Software Technologies Ltd
Snicrpt.sys	147300	Systemneeds, Inc
iCrypt.sys	147200	I-O DATA DEVICE, INC.
xdrmflt.sys	147100	bluefinsystems
dyFsFilter.sys	147000	Scrypto Media
thinairwin.sys	146960	Thin Air Inc"
UcaDataMgr.sys	146950	AppSense Ltd
zesocc.sys	146900	Novell
mfprom.sys	146800	McAfee Inc
MfeEEFF.sys	146790	McAfee Inc.
intefs.sys	146700	TianYu Software
leofs.sys	146600	Leotech
autocryptater.sys	146500	Richard Hagen
WavxDMgr.sys	146400	Scott Cochrane
eedmkxp32.sys	146300	Entrust
SbCe.sys	146200	SafeBoot
iSharedFsFilter	146100	Packeteer Inc
dlrmenc.sys	146010	DESlock
dlmfenc.sys	146000	DESlock
aksdf.sys	145900	Aladdin Knowledge Systems
DDSFilter.sys	145800	WuHan Forworld Software
SecureShield.sys	145700	HMI
AifaFE.sys	145600	Alfa
HiCrypt.sys	145566	digitronic computersysteme GmbH
GBFsMf.sys	145500	GreenBorder
jmefs.sys	145400	ShangHai Elec
emugufs.sys	145333	Emugu Secure FS
VFDriver.sys	145300	R Systems
IntelDG.sys	145250	Intel Corporation
DPMEncrypt.sys	145240	Randtronics Pty
EVSDecrypt64.sys	145230	Fortium Technologies Ltd
skycryptorencfs.sys	145220	Onecryptor CJSC.
AisLeg.sys	145210	Assured Information Security
windtalk.sys	145200	Hyland Software
TeamCryptor.sys	145190	iTwin Pte. Ltd.
CVDLP.sys	145180	CommVault Systems, Inc.
5nine.encryptor.sys	145170	5nine Software Inc.
ctpfile.sys	145160	Beijing Wondersoft Technology Co.
DPDrv.sys	145150	IBM Japan
tsdlp.sys	145140	Forware
KCDriver.sys	145130	Tallegra Ltd
CmgFFE.sys	145120	Credant Technologies
fgcenc.sys	145110	Fortres Grand Corp.
sview.sys	145100	Cinea
TalkeyFilterDriver.sys	145040	myTALKEY s.r.o.
FedsFilterDriver.sys	145010	Physical Optics Corp
stocc.sys	145000	Senforce Technologies
SnEfs.sys	144900	Informzaschita
ewSecureDox	144800	Echoworx Corporation
osrdmk.sys	144700	OSR Open Systems Resources, Inc.
uldcr.sys	144600	NCR Financial Solutions
Tkefsxp.sys - 32bit	144500	INCA Internet Co., Ltd
Tkefsxp64.sys - 64bit	144500	INCA Internet Co., Ltd
NmlAccf.sys	144400	NEC System Technologies, Ltd.
SolCrypt.sys	144300	Soliton Systems K.K.
IngDmk.sys	144200	Ingrian Networks, Inc.
llenc.sys	144100	SecureAxis Software
SecureData.sys	144030	SecureAge Technology
lockcube.sys	144020	SecureAge Technology Pte Ltd
sdmedia.sys	144010	SecureAge Technology
mysdrive.sys	144000	SecureAge Technology
FileArmor.sys	143900	Mobile Armor
VSTXEncr.sys	143800	VIA Technologies, Inc.
dgdmk.sys	143700	Verdasys Inc.
shandy.sys	143600	Safend Ltd.
C2knet.sys	143520	Secuware
C2kdef.sys	143510	Secuware
ssfFS.sys	143500	SECUWARE S.L.
PISRFE.sys	143400	Jilin University IT Co.
bapfecre.sys	143300	BitArmor Systems, Inc
KPSD.sys	143200	cihosoft
Fcfileio.sys	143100	Brainzsquare, Co. Ltd.
cpdrm.sys	143000	Pikewerks
vmfiltr.sys	142900	Vormetric Inc
Sfntpffd.sys	142890	Thales CPL
VFSEnc.sys	142811	Symantec
pgpfs.sys	142810	Symantec
fencry.sys	142800	Symantec
TmFileEncDmk.sys	142700	Trend Micro Inc
cpefs.sys	142600	Crypto-Pro
dekfs.sys	142500	KasherLab co.,ltd
qlockfilter.sys	142400	Binqsoft Inc.
RRFilterDriverStack_d3.sys	142300	Rational Retention
cve.sys	142200	Absolute Software Corp.
spcflt.sys	142100	FUJITSU BSC Inc.
ldsecusb.sys	142000	LANDesk Inc.
fencr.sys	141900	SODATSW spol. s.r.o.
RubiFlt.sys	141800	Hitachi
NCrypt.sys	141700	Nimshi Corp
mfild.sys	141660	Penta Security Systems
cbfsfilter2017.sys	141635	Automaton Inc
cbfsfilter2017.sys	141634	Automaton Inc
cbfsfilter2017.sys	141633	Automaton Inc
cbfsfilter2017.sys	141632	Automaton Inc
cbfsfilter2017.sys	141631	Automaton Inc
cbfsfilter2017.sys	141630	Automaton Inc
TypeSquare.sys	141620	Morisawa inc.
xbdocfilter.sys	141610	Zrxb
EVSDecrypt32.sys	141600	Fortium Technologies Ltd
EVSDecrypt64.sys	141600	Fortium Technologies Ltd
EVSDecryptia64.sys	141600	Fortium Technologies Ltd
SophosDt2.sys	141510	Sophos Plc
afdriver.sys	141500	ATUS Technology LLC
TrivalentFSFltr.sys	141430	Cyber Reliant
CmdMnEfs.sys	141420	Comodo Security
DWENxxxx.sys	141410	SciencePark Corporation
DWENxxxx.sys	141400	SciencePark Corporation
hdFileSentryDrv32.sys	141300	Heilig Defense
hdFileSentryDrv64.sys	141300	Heilig Defense
SDSCloudDrv.sys	141255	Stormshield
pnpfs.sys	141250	PNP SECURE INC
SmartCipherFilter.sys	141240	Micro Focus
cplcdt2.sys	141230	conpal GmbH
asCryptoFilter.sys	141220	Applied Security GmbH
NetCryptKR.sys	141210	NetCrypt Pty Ltd
SGFS.sys	141205	Levyco Development,LLC
BHFilter.sys	141200	Beachhead Solutions
Filecrypt.sys	141100	Microsoft
encrypt.sys	141010	Microsoft
swapBuffers.sys	141000	Microsoft

130000 - 139999: FSFilter Virtualization

Minifilter	Altitude	Company
Klvirt.sys	138100	Kaspersky Lab
thsmmf.sys	138060	Talon Storage Solutions
VMagic.sys	138050	AI Consulting
GetSAS.sys	138040	SAS Institute Inc
rqtNos.sys	138030	ReaQta Ltd.
HIPS64.sys	138020	Recrypt LLC
frxdrv.sys	138010	FSLogix Inc.
vzdrv.sys	138000	Altiris
sffsg.sys	137990	Starfish Storage Corp
AppStream.sys	137920	Symantec Corporation
Rasm.sys	137915	OpDesk Inc
boxifier.sys	137910	Kenubi
xorw.sys	137900	CA (XOsoft)
ctlua.sys	137800	SurfRight B.V.
fgccow.sys	137700	Fortres Grand Corp.
aswSnx.sys	137600	ALWIL Software
AppIsoFltr.sys	137500	Kernel Drivers
ptcvfsd.sys	137400	PTC
BDSandBox.sys	137300	BitDefender SRL
sxfpss-virt.sys	137200	Skanix AS
DKRtWrt.sys	137100	Diskeeper Corporation
ivm.sys	137000	RingCube Technologies
ivm.sys	136990	Citrix Systems
dtiof.sys	136900	Instavia Software Inc.
NxTopCP.sys	136800	Virtual Ccomputer Inc.
svdriver.sys	136700	VMware, Inc.
unifltr.sys	136600	Unidesk
unidrive.sys (Renamed)	136600	Unidesk
unirsd.sys	136600	Unidesk
ive.sys	136500	TrendMicro Inc.
odamf.sys	136450	Sony Corporation
SrMxfMf.sys	136440	Sony Corporation
pszmf.sys	136430	Sony Corporation
sxsudfmf.sys	136410	Sony Corporation
vfammf.sys	136400	Sony Corporation
lwfsflt.sys	136300	Liquidware Labs
VHDFlt.sys	136240	Dell
VHDFlt.sys	136230	Dell
VHDFlt.sys	136220	Dell
VHDFlt.sys	136210	Dell
ncfsfltr.sys	136200	NComputing Inc.
cmdguard.sys	136100	COMODO Security Solutions Inc
hpfsredir.sys	136000	HP
svhdxflt.sys	135100	Microsoft
luafv.sys	135000	Microsoft
ivm.sys	134000	RingCube Technologies
ivm.sys	133990	Citrix Systems
RasRdpFs.sys	132720	Parallels International
frxdrvvt.sys	132700	FSLogix Inc.
pfmfs_???.sys	132600	Pismo Technic Inc.
Stcvhdmf.sys	132600	StorageCraft Tech Corp
appdrv01.sys	132500	Protection Technology
virtual_file.sys	132400	Acronis
pdiFsFilter.sys	132300	Proximal Data Inc.
avgvtx86.sys	132200	AVG Technologies CZ
avgvtx64.sys	132200	AVG Technologies CZ
DataNet_Driver.sys	132100	AppSense Ltd
EgenPage.sys	132000	Egenera, Inc.
unidrive.sys-old	131900	Unidesk
ivm.sys.old	131800	RingCube Technologies
XiaobaiFsR.sys	131710	SHENZHEN UNNOO LTD
XiaobaiFs.sys	131700	SHENZHEN UNNOO LTD
iotfsflt.sys	131600	IO Turbine Inc
mhpvfs.sys	131500	Wunix Limited
svdriver.sys	131400	SnapVolumes Inc.
Sptvrt.sys	131300	Safend
antirswf.sys	131210	Panzor Cybersecurity
aicvirt.sys	131200	AI Consulting
sfo.sys	130100	Microsoft
DeVolume.sys	130000	Microsoft

120000 - 129999: FSFilter Physical Quota management

Minifilter	Altitude	Company
quota.sys	125000	Microsoft
qafilter.sys	124000	Veritas
DroboFlt.sys	123900	Data Robotics

100000 - 109999: FSFilter Open File

Minifilter	Altitude	Company
insyncmf.sys	105000	InSync
SPILock8.sys	100900	Software Pursuits Inc.
Klbackupflt.sys	100800	Kaspersky
repkap	100700	Vision Solutions
symrg.sys	100600	Symantec
adsfilter.sys	100500	PolyServ
FMonitor.sys	100490	Safetica

80000 - 89999: FSFilter Security Enhancer

Minifilter	Altitude	Company
KpHrd.sys	88300	Ivanti
cbfilter20.sys	88250	Division-M
pfcflt.sys	88240	PNP SECURE INC
pegasus.sys	88230	Assured Info Security
RSBDrv.sys	88220	SMTechnology Co.
psprotf.sys	88210	Panzor Cybersecurity
DPMACL.sys	88100	Randtronics Pty
dsbwnck.sys	88000	Easy Solution Inc.
cbfsfilter2017.sys	87910	Automaton
cbfsfilter2017.sys	87909	Automaton Inc
cbfsfilter2017.sys	87908	Automaton Inc
cbfsfilter2017.sys	87907	Automaton Inc
cbfsfilter2017.sys	87906	Automaton Inc
cbfsfilter2017.sys	87905	Automaton Inc
cbfsfilter2017.sys	87904	Automaton Inc
cbfsfilter2017.sys	87903	Automaton Inc
cbfsfilter2017.sys	87902	Automaton Inc
cbfsfilter2017.sys	87901	Automaton Inc
cbfsfilter2017.sys	87900	Automaton Inc
rsbfsfilter.sys	87800	Corel Corporation
hsmltflt.sys	87720	Hitachi Solutions
hssfflt.sys	87710	Hitachi Solutions
acmnflt.sys	87708	Hitachi Solutions
ACSKFFD.sys	87700	Hitachi Solutions
MyDLPMF.sys	87600	Comodo Group Inc.
ScuaRaw.sys	87500	SCUA Segurança da Informação
HDSFilter.sys	87400	NeoAutus Automation System
ikfsmflt.sys	87300	IronKey Inc.
Klsec.sys	87200	Kaspersky Lab
XtimUSBFsFilterDrv.sys	87190	Dalian CP-SDT Ltd
RGFLT_FM.sys	87180	Hauri.inc
flockflt.sys	87170	Ahranta Inc.
ZdCore.sys	87160	Zends Technological Solutions
dcrypt.sys	87150	ReactOS Foundation
hpradeo.sys	87140	Pradeo
SDFSAGDRV.SYS	87130	ALPS SYSTEM INTERGRATION CO.
SDFSDEVFDRV.SYS	87120	ALPS SYSTEM INTERGRATION CO.
SDIFSFDRV.SYS	87110	ALPS SYSTEM INTERGRATION CO.
SDFSFDRV.SYS	87100	ALPS SYSTEM INTERGRATION CO.
CModule.sys	87070	Zhejiang Security Tech
HHRRPH.sys	87010	H+H Software GmbH
HHVolFltr.sys	87000	H+H Software GmbH
CCRRSecMon.sys	86960	Cyber Crucible Inc.
SbieDrv.sys	86900	Sandboxie L.T.D
assetpro.sys	86800	pyaprotect․com
dlp.sys	86700	Tellus Software AS
eps.sys	86600	Lumension Security
RapportPG64.sys	86500	Trusteer
amminifilter.sys	86400	AppSense
Sniflt.sys	86300	Systemneeds, Inc
SecFile.sys	86200	Secure By Design Inc.
philly.sys	86110	triCerat Inc.
reggy.sys	86100	triCerat Inc.
cygfilt.sys	86000	Livegrid Incorporated
prelaunch.sys	85900	D3L
csareg.sys	85810	Cisco Systems
csaenh.sys	85800	Cisco Systems
asEpsDrv.sys	85750	ASHINI Co. Ltd.
CIDACL.sys	85700	GE Aviation (Digital Systems Germantown)
CVDLP.sys	85610	CommVault Systems, Inc.
QGPEFlt.sys	85600	Quest Software
Drveng.sys	85500	CA
vracfil2.sys	85400	HAURI
TFsDisk.sys	85300	Teruten
rcMiniDrv.sys	85200	REDGATE CO.,LTD.
SnMc5xx.sys	85100	Informzaschita
FSPFltd.sys	85010	Alfa
AifaFFP.sys	85000	Alfa
EsAccCtlFE.sys	84901	EgoSecure GmbH
DpAccCtl.sys	84900	Softbroker GmbH
privman.sys	84800	BeyondTrust
eumntvol.sys	84700	Eugrid Inc
SoloEncFilter.sys	84600	Soliton Systems
sbfilter.sys	84500	UC4 Sofware
cposfw.sys	84450	Check Point Software Technologies Ltd
vsdatant.sys	84400	Zone Labs LLC
SePnet.sys	84350	Humming Heads, Inc.
SePuld.sys	84340	Humming Heads, Inc.
SePpld.sys	84330	Humming Heads, Inc.
SePfsd.sys	84320	Humming Heads, Inc.
SePwld.sys	84310	Humming Heads, Inc.
SePprd.sys	84300	Humming Heads, Inc.
InPFlter.sys	84200	Humming Heads, Inc.
CProCtrl.sys	84100	Crypto-Pro
spyshelter.sys	84000	Datpol
clpinspprot.sys	83900	Information Technology Company Ltd.
AbrEpm.sys	83800	FastTrack Software ApS
uvmfsflt.sys	83376	NEC Corporation
ProtectIt.sys	82373	TeraByte Inc.
dguard.sys	82300	Dmitry Varshavsky
NSUSBStorageFilter.sys	82200	NetSupport Ltd
RMSEFFMV.SYS	82100	CJSC Returnil Software
BoksFLAC.sys	82000	Fox Technologies
cpAcOnPnP.sys	81910	conpal GmbH
cpsgfsmf.sys	81900	conpal GmbH
ndevsec.sys	81800	Norman ASA
ViewIntus_RTDG.sys	81700	Pentego Technologies Ltd
BKSandFS.sys	81640	Binklac Workstation
airlock.sys	81630	Airlock Digital Pty Ltd
zam.sys	81620
ANXfsm.sys	81610	Arcdo
CDrSDFlt.sys	81600	Arcdo
crnselfdefence32.sys	81500	Coranti Inc.
crnselfdefence64.sys	81500	Coranti Inc.
zlock_drv.sys	81400	SecurIT
f101fs.sys	81300	Fortres Grand Corp.
sysgar.sys	81200	Nucleus Data Recover
EmbargoM.sys	81100	ScriptLogic
ngssdef.sys	81050	Wontok Inc
ssb.sys	81041	Wontok Inc
regflt.sys	81040	Wontok Inc
fsds2a.sys	81000	Splitstreem Ltd
csacentr.sys	80900	Cisco Systems
ScvFLT50.sys	80850	Secuve Ltd
paritydriver.sys	80800	Bit9, Inc.
nkfsprot.sys	80710	Konneka
nkprot.sys	80700	KONNEKA Information Technologies
acpadlock.sys	80691	IntSoft Co
ksmf.sys	80690	IntSoft Co
im.sys	80680	CrowdStrike
SophosED.sys	80670	Sophos
jazzfile.sys	80660	Jazz Networks
SMXFs.sys	80500	OSR

60000 - 69999: FSFilter Copy Protection

Minifilter	Altitude	Company
plypFsMon.sys	67100	PolyPort Inc.
d3clock.sys	67000	D3CRYPT3D LLC
cbfltfs4.sys	66500	I3D Technology Inc
CkProcess.sys	66100	KASHU SYSTEM DESIGN INC.
dlmfprot.sys	66000	Data Encrypt Sys
baprtsef.sys	65700	BitArmor Systems, Inc
sxfpss.sys	65600	Skanix AS
rgasdev.sys	65500	Macrovision
SkyFPDrv.sys	65410	Sky Co. Ltd.
SkyLWP.sys	65400	Sky Co. Ltd.
SkySDVRF.sys	65390	Sky Co. Ltd.
SnEraser.sys	65300	Informzaschita
vfilter.sys	65200	RSJ Software GmbH
COGOFlt32.sys	65100	Fortium Technologies Ltd
COGOFlt64.sys	65100	Fortium Technologies Ltd
COGOFLTia64.sys	65100	Fortium Technologies Ltd
scrubber.sys	65000	Microsoft
SmDLP.sys	64100	SmTools
BRDriver.sys	64000	BitRaider LLC
BRDriver64.sys	64000	BitRaider LLC
X7Ex.sys	62500	Exent Technologies Ltd
LibertyFSF.sys	62300	Bayalink Solutions Co
axfsdrv2.sys	62100	Axence Software Inc.
sds.sys	62000	Egress Software
TotalSystemAuditor.sys	61600	ANRC LLC
MBAMApiary.sys	61500	Malwarebytes Corp.
WA_FSW.sys	61400	Programas Administración y Mejoramiento
ViewIntus_RTAS	61300	Pentego Technologies
tffac.sys	61200	Toshiba Corporation
tccp.sys	61100	TrusCont Ltd
KomFS.sys	61000	KOM Networks

40000 - 49999: FSFilter Bottom

Minifilter	Altitude	Company
RMPFileMounter.sys	48000	ManageEngine Zoho
MFPAMCtrl.sys	47500	Micro Focus
cbfsfilter2017.sys	47400	12d Synergy
pfmfs_???.sys	47300	Pismo Technic Inc.
DLDriverMiniFlt.sys	47200	DeviceLock Inc
hsmltlib.sys	47110	Hitachi Solutions
hskdlib.sys	47100	Hitachi Solutions
acmnlib.sys	47090	Hitachi Solutions
aictracedrv_b.sys	47000	AI Consulting
SBox.sys	46950	ASF Labs 2019 LTD
hhdcfltr.sys	46900	Seagate Technology
Npsvctrig.sys	46000	Microsoft
klvfs.sys	44900	Kaspersky Lab
klbackupflt.sys	44890	Kaspersky Lab
rsfxdrv.sys	41000	Microsoft
defilter.sys	40900	Microsoft
AppVVemgr.sys	40800	Microsoft
wofadk.sys	40730	Microsoft
wof.sys	40700	Microsoft
fileinfo	40500	Microsoft
WinSetupBoot.sys	40400	Microsoft

20000 - 29999: FSFilter System

None.

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FAQs

What are Windows filter drivers? ›

A file system filter driver is an optional driver that adds value to or modifies the behavior of a file system. It is a kernel-mode component that runs as part of the Windows executive. A file system filter driver can filter I/O operations for one or more file systems or file system volumes.

What is filter altitude? ›

Every filter driver must have a unique altitude identifier. The filter's altitude defines its position relative to other filter drivers in the I/O stack when it is loaded.

Read The Full Story ›

What is NDIS filter driver? ›

NDIS 6.0 introduced NDIS filter drivers. Filter drivers can monitor and modify the interaction between protocol drivers and miniport drivers. Filter drivers are easier to implement and have less processing overhead than NDIS intermediate drivers. A filter module is an instance of a filter driver.

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What do filter drivers do? ›

A filter driver is a Microsoft Windows driver that extends or modifies the function of peripheral devices or supports a specialized device in the personal computer. It is a driver or program or module that is inserted into the existing Driver Stack to perform some specific function.

What is a USB filter driver? ›

A filter driver

is a Microsoft Windows driver that adds value to peripheral devices or supports a specialized device in the personal computer. It is a driver/program/module that is inserted into the existing driver stack to perform some specific function.

Learn More Now ›

What is Smartlocker filter driver? ›

Smartlocker Filter Driver is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Smartlocker Filter Driver fails to start, the failure details are being recorded into Event Log.

Learn More ›

How do you unload filter drivers? ›

A filter driver must call the NdisFDeregisterFilterDriver function from Unload. NdisFDeregisterFilterDriver calls FilterDetach to detach all currently attached filter modules that are associated with this filter driver. For more information about unloading filter drivers, see Stopping a Driver Stack.

Tell Me More ›

What is Fltmc used for? ›

The Fltmc.exe program is a system-supplied command line utility for common minifilter driver management operations. Developers can use Fltmc.exe to load and unload minifilter drivers, attach or detach minifilter drivers from volumes, and enumerate minifilter drivers, instances, and volumes.

Get More Info Here ›

What is Mssecflt? ›

Microsoft Security Events Component file system filter driver files such as mssecflt. sys utilize the SYS file extension. This file is considered a Win32 EXE (Driver) file, and was first created by Microsoft for the Microsoft® Windows® Operating System software package. The release of mssecflt.

Get More Info Here ›

What is Windows packet filter? ›

Windows Filtering Platform (WFP) is a set of API and system services that provide a platform for creating network filtering applications. The WFP API allows developers to write code that interacts with the packet processing that takes place at several layers in the networking stack of the operating system.

Get More Info Here ›

What is sk NDIS lightweight filter? ›

SK-NDIS is a filter driver that hooks onto ALL network cards, physical or virtual, the card itself and its miniport. So each card will show an SKNDIS and/or an SK-NDIS Mini Port entry added.

Explore More ›

What is WinpkFilter lightweight filter? ›

Windows Packet Filter (WinpkFilter) is a high-performance packet filtering framework for Windows that allows developers to transparently filter (view and modify) raw network packets at the NDIS level of the network stack with minimal impact on network activity and without having to write any low-level driver code.

Learn More Now ›

What is upper filter driver? ›

Upper-Level Filter Drivers

An upper-level device filter driver adds value for a particular device. For example, an upper-level device filter driver for a keyboard could enforce additional security checks. An upper-level class filter driver adds value for all devices of a particular class.

Learn More ›

How do I run Fltmc? ›

The syntax is as follows:

To unload the EvFilter driver: Fltmc unload EvFilter.
To load the EvFilter driver: Fltmc load EvFilter.
To view all instances of loaded drivers: Fltmc instances.
To attach the driver to a specific volume: Fltmc attach EvFilter C:
To detach the driver from a specific volume:

1 May 2020

Get More Info ›

What is file driver? ›

Driver Files are pieces of code that help your computer interact with different hardware devices and peripherals attached (internally or externally) to your computer. Driver files are essential to the proper working of all the devices connected to your computer and without them, the devices can't work.

Read The Full Story ›

How do I get out of kernel mode? ›

How to Fix the Unexpected Kernel Mode Trap Error in Windows

Restart Your Computer. Windows 10 runs into errors from time to time, but they don't all require a specific fix. ...
Reseat Your Hardware. ...
Update Windows 10. ...
Update Faulty Drivers. ...
Run Windows 10 Integrated Memory Diagnostic Tool. ...
Run MemTest86+ ...
Run SFC and CHKDSK.

16 Nov 2020

Get More Info Here ›

What is Fltmc? ›

Explore More ›

How do I disable driver registry? ›

Stop the service or device driver. ...
Start the registry editor (regedt32.exe).
Move to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services.
Find the registry key that corresponds to the service or device driver that you want to delete.
Select the key.
From the Edit menu, choose Delete.

More items...

Is Windows firewall stateful or stateless? ›

Windows Firewall is a built-in, host-based, stateful firewall that is included with the Windows operating system...it does not expire but you can turn it off. If using a third party firewall or Internet Security Suite, the installation most likely will disable it to avoid conflicts.

Learn More Now ›

What is Winpk filter driver? ›

WinpkFilter is a high performance packet filtering framework for Windows, that allows developers to transparently filter (view and modify) raw network packets with minimal impact on network activity. WinpkFilter is more than just a firewall development kit for Windows.

Know More ›

Do I need Windows driver package? ›

All devices on a Windows system should have a driver package installed on them. The system provides some generic driver packages that can be installed on some classes of devices.

See Details ›

What devices need drivers? ›

Card reader, controller, modem, network card, sound card, printer, video card, USB devices, RAM, Speakers, etc need Device Drivers to operate.

Keep Reading ›

What format are Windows drivers? ›

Typically, a driver is a dynamic-link library (DLL) with the . sys file name extension.

What is NT file system driver? ›

NTFS, which stands for NT file system and the New Technology File System, is the file system that the Windows NT operating system (OS) uses for storing and retrieving files on hard disk drives (HDDs) and solid-state drives (SSDs).

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What is file driver? ›

Read The Full Story ›

Is exFAT better than NTFS? ›

In a debate regarding exFAT vs NTFS vs FAT32, NTFS is the best format for storage devices with Windows operating system. However, exFAT is best for portable storage devices due to more efficient power and memory management. It also allows you to use a storage device on both Windows and macOS.

Learn More Now ›

Which file system is better NTFS or FAT32? ›

Compared to FAT32, the NTFS file system has higher disk utilization and can manage disk space more effectively. The read and write speeds of NTFS are also faster than that of FAT32.

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Do I need Windows driver package? ›

All devices on a Windows system should have a driver package installed on them. The system provides some generic driver packages that can be installed on some classes of devices.

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What devices need drivers? ›

Card reader, controller, modem, network card, sound card, printer, video card, USB devices, RAM, Speakers, etc need Device Drivers to operate.

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What format are Windows drivers? ›

Typically, a driver is a dynamic-link library (DLL) with the . sys file name extension.

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Allocated filter altitudes - Windows drivers (2023)

420000 - 429999: Filter

400000 - 409999: FSFilter Top

360000 - 389999: FSFilter Activity Monitor

340000 - 349999: FSFilter Undelete

320000 - 329998: FSFilter Anti-Virus

300000 - 309998: FSFilter Replication

280000 - 289998: FSFilter Continuous Backup

260000 - 269998: FSFilter Content Screener

240000 - 249999: FSFilter Quota Management

220000 - 229999: FSFilter System Recovery

200000 - 209999: FSFilter Cluster File System

180000 - 189999: FSFilter HSM

170000 - 174999: FSFilter Imaging (ex: .ZIP)

160000 - 169999: FSFilter Compression

140000 - 149999: FSFilter Encryption

130000 - 139999: FSFilter Virtualization

120000 - 129999: FSFilter Physical Quota management

100000 - 109999: FSFilter Open File

80000 - 89999: FSFilter Security Enhancer

60000 - 69999: FSFilter Copy Protection

40000 - 49999: FSFilter Bottom

20000 - 29999: FSFilter System

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