哪位高手帮我看看日志，怎么有那么多nvappfilter,需要全部删去吗？
Logfile of HijackThis v1.99.1
Scan saved at 10:49:21, on 2006-10-11
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
D:\瑞星\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
D:\瑞星\Rising\Rav\Ravmond.exe
d:\瑞星\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\spoolsv.exe
D:\瑞星\Rising\Rav\RavStub.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\SYSTEM32\RUNDLL.EXE
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\tlntsvr.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
c:\windows\system32\wbem\winlogon.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\rundll32.exe
C:\PROGRA~1\TWEAKA~1\AssistSystray.exe
C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe
C:\WINDOWS\system32\Rundll32.exe
D:\瑞星\Rising\Rfw\rfwmain.exe
D:\瑞星\Rising\Rav\RavTask.exe
D:\瑞星\Rising\Rav\Ravmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\Rundll32.exe
D:\瑞星\Rising\Rav\RsAgent.exe
C:\WINDOWS\msagent\AgentSvr.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\3721\ske\TrojanAssistant.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\system32\wbem\wmiprvse.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\PROGRA~1\Yahoo!\ASSIST~1\ylive.exe
G:\HijackThis.exe

O2 - BHO: internet explorer helper - {02C9B9AB-6372-46C5-B356-773FAF3B6B1E} - (no file)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: netup - {0A44CDEC-87D0-4D4D-BF97-DE9AFB9B104A} - C:\WINDOWS\system32\netiup.dll
O2 - BHO: MyIEHelper Class - {16B770A0-0E87-4278-B748-2460D64A8386} - C:\Documents and Settings\All Users\Application Data\Microsoft\UserData\IEHelper_5025.dll (file missing)
O2 - BHO: KOSIE HelperInternet Explorer Web Content Guard  - {1B2F92A1-CDAF-4511-9382-91E3F5CE0880} - (no file)
O2 - BHO: (no name) - {2A4956FD-BE98-4104-ABEB-97029B3175BB} - C:\WINDOWS\system32\sys32dev.dll
O2 - BHO: IeCatch5 Class - {2F364306-AA45-47B5-9F9D-39A8B94E7EF7} - (no file)
O2 - BHO: yPhtb - {33BBE430-0E42-4f12-B075-8D21ACB10DCB} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yphtb.dll
O2 - BHO: Anti Fish - {38928D50-8A48-44C2-945F-D2F23F771410} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yangling.dll
O2 - BHO: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
O2 - BHO: raObject Class - {46F194EB-B7DB-4B7A-BD42-5FF39FD17664} - C:\PROGRA~1\pcast\hbcast.dll
O2 - BHO: CdnForIE Class - {5C3853CF-C7E0-4946-B3FA-1ABDB6F48108} - C:\PROGRA~1\CNNIC\Cdn\cdnforie.dll
O2 - BHO: YDragSearch - {62EED7C6-9F02-42f9-B634-98E2899E147B} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\YDRAGS~1.DLL
O2 - BHO: Vision - {6671A431-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll
O2 - BHO: stdup - {6A512BF7-EC78-4e8d-9841-6C02E8FA9838} - C:\WINDOWS\SYSTEM32\stdup.dll
O2 - BHO: ThunderBHO - {889D2FEB-5411-4565-8998-1DD2C5261283} - D:\迅雷

\ComDlls\XunLeiBHO_002.dll
O2 - BHO: Webacc - {CAC068F3-A608-406B-8581-458788A67694} - C:\WINDOWS\system32\svchost.dll (file missing)
O2 - BHO: 信息检索 - {CE7C3CF0-98A8-474D-B2B5-1ED7E2E3B004} - C:\WINDOWS\system32\IEHelper.dll
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:\WINDOWS\DOWNLO~1\CnsHook.dll
O2 - BHO: update wnwb - {ED8DFC5C-10EF-45AB-9DC2-0639AFF5A270} - (no file)
O2 - BHO: gFlash Class - {F156768E-81EF-470C-9057-481BA8380DBA} - D:\网际快车\FlashGet\getflash.dll
O3 - Toolbar: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
O3 - Toolbar: 全能助手广告拦截专家 - {ED51E9A3-16C5-4236-99E0-9F093B021433} - C:\Program Files\TweakAssist\AssistIEBar.dll
O3 - Toolbar: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\kakatool.dll
O4 - HKLM\..\Run: [AssistSystray] C:\PROGRA~1\TWEAKA~1\AssistSystray.exe
O4 - HKLM\..\Run: [yassistse] "C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe"
O4 - HKLM\..\Run: [YLive.exe] C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - HKLM\..\Run: [RichMedia] C:\WINDOWS\system32\Rundll32.exe  "C:\PROGRA~1\pcast\hbcast.dll",WaitWindows
O4 - HKLM\..\Run: [RfwMain] "D:\瑞星\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\Run: [RavTask] "D:\瑞星\Rising\Rav\RavTask.exe" -system
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [updateMgr] C:\Adobe Acrobat7.0\Reader\AdobeUpdateManager.exe AcRdB7_0_0 -reboot 1
O4 - HKCU\..\Run: [updatereal] C:\WINDOWS\realupdate.exe other
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: &使用迅雷下载 - D:\迅雷\Program\GetUrl.htm
O8 - Extra context menu item: >>彩信发送<< - res://C:\PROGRA~1\MMSASS~1\mmsass~1.dll/mms.htm
O9 - Extra button: 雅虎助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=yassist (file missing)
O9 - Extra button: 雅虎WIDGET - {6354ABE6-05F1-49ed-B850-E423120EC338} - http://cn.widget.yahoo.com/index.htm?source=Cns (file missing)
O9 - Extra button: 雅虎WIDGET - {6354ABE6-05F1-49ed-B850-E423120EC338}? - http://cn.widget.yahoo.com/index.htm?source=Cns (file missing)
O9 - Extra button: (no name) - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll
O9 - Extra 'Tools' menuitem: 彩E精灵设置 - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll
O9 - Extra button: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=repair (file missing)
O9 - Extra 'Tools' menuitem: 修复浏览器 - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=repair (file missing)
O9 - Extra button: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=clean (file missing)
O9 - Extra 'Tools' menuitem: 清理上网记录 - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=clean (file missing)
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O11 - Options group: [!CNS]  中文上网
O16 - DPF: {52DF16E3-6C4F-4B22-8BAF-09263E463B48} (金山毒霸在线产品升级) - http://www.duba.net/cab/KOSInit.cab
O16 - DPF: {E4E2F180-CB8B-4DE9-ACBB-DA745D3BA153} (Rising Web Scan Object) - http://download.rising.com.cn/register/pcver/autoupgradepad/pcver2006new/OL2006.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{7BC88DB7-1D63-4769-927D-9958FC051C8F}: NameServer = 202.96.134.133,202.95.134.188
O17 - HKLM\System\CCS\Services\Tcpip\..\{BB692A2F-6162-4CF6-A495-A46F4E2BE90F}: NameServer = 220.170.0.18 220.170.0.38
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
O23 - Service: Forceware Web Interface (ForcewareWebInterface) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe" -k runservice (file missing)
O23 - Service: Kingsoft Antivirus KWatch Service (KWatchSvc) - Unknown owner - D:\jinshan\KWatch.EXE (file missing)
O23 - Service: ForceWare IP service (nSvcIp) - NVIDIA - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
O23 - Service: ForceWare user log service (nSvcLog) - NVIDIA - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
O23 - Service: Rising Proxy  Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - d:\瑞星\rising\rfw\rfwproxy.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - d:\瑞星\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - D:\瑞星\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - D:\瑞星\Rising\Rav\Ravmond.exe
O23 - Service: Windows Audio Server - Unknown owner - C:\WINDOWS\system32\drwatsn.exe (file missing)

水楼雨下，你在吗？有空帮我看看！谢谢！