我的系统是WIN2000，在浏览网页的时候IE老是出错，自动关掉所有窗口。
这是我的扫描日志，请版主帮我看看呀
Logfile of HijackThis v1.99.1
Scan saved at 9:06:44, on 2005-11-1
Platform: Windows 2000 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)
Running processes:
C:\WINNT\Explorer.exe
C:\WINNT\SOUNDMAN.EXE
C:\WINNT\System32\RUNDLL32.EXE
C:\KAV6\Kulansyn.EXE
C:\KAV6\KWatchUI.EXE
C:\KAV6\KpopMon.EXE
C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe
C:\WINNT\system32\rundll32.exe
C:\WINNT\System32\internat.exe
C:\KAV6\KAVPlus.EXE
C:\!WNM\wnb.exe
G:\luym\反浏览器劫持\HijackThis.exe
O2 - BHO: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yasbar.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O2 - BHO: YDragSearch - {62EED7C6-9F02-42f9-B634-98E2899E147B} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\YDRAGS~1.DLL
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:\WINNT\DOWNLO~1\CnsHook.dll
O2 - BHO: YiSou - {EF1D17A9-089F-40cc-8D64-7324CDEBA0DB} - C:\PROGRA~1\yisou\yisoub.dll
O3 - Toolbar: 金山毒霸 - {A9BE2902-C447-420A-BB7F-A5DE921E6138} - C:\KAV6\KAIEPlus.DLL
O3 - Toolbar: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yasbar.dll
O3 - Toolbar: 一搜工具条 - {115F6E46-FCBC-41ed-B3B5-3BDDD4AAB5E5} - C:\Program Files\yisou\yisou.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINNT\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINNT\System32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Cinlan_Teacher] C:\Program Files\foundersz\iClass\NoNeedManager\Teacher\teacher.exe
O4 - HKLM\..\Run: [KAVRun] C:\KAV6\KAVRun.EXE
O4 - HKLM\..\Run: [Kulansyn] C:\KAV6\Kulansyn.EXE
O4 - HKLM\..\Run: [KpopMon] C:\KAV6\KpopMon.EXE
O4 - HKLM\..\Run: [iDuba Personal FireWall] C:\KAV6\KAVPFW.EXE
O4 - HKLM\..\Run: [CnsMin] Rundll32.exe C:\WINNT\DOWNLO~1\CnsMin.dll,Rundll32
O4 - HKLM\..\Run: [YLive.exe] C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - HKLM\..\Run: [yassistse] "C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe"
O4 - HKLM\..\Run: [helper.dll] C:\WINNT\system32\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - HKCU\..\Run: [Internat.exe] internat.exe
O9 - Extra button: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm?pid=401750_1006 (file missing)
O9 - Extra button: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - Extra button: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://adtaobao.allyes.com/main/adfclick?db=adtaobao&bid=138,140,18&cid=816,8,1&sid=5042&show=ignore&url=?allyesPara=816 (file missing)
O9 - Extra button: 雅虎助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://cn.zs.yahoo.com/?source=Cns (file missing)
O9 - Extra button: 卓越 - {8DE0FCD4-5EB5-11D3-AD25-00002100131B} - C:\PROGRA~1\Kingsoft\XDict\IEPlugin.dll
O9 - Extra button: 金山词霸 - {C8CE29C5-7589-11D3-B81B-0080C8DC5DC8} - C:\PROGRA~1\Kingsoft\XDict\IEPlugin.dll
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra button: QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - Extra 'Tools' menuitem: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - Extra button: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - Extra 'Tools' menuitem: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - Extra button: 金山毒霸网站 - {e1fc9760-7b95-49cd-80b9-8c9e41017b93} - url:http://www.duba.net (file missing)
O9 - Extra button: 情景聊天 - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/ (file missing)
O9 - Extra button: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 修复浏览器 - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - Extra button: 在线查毒 - {f58d36c3-40be-4418-a786-d8fbe3eb3554} - C:\KAV6\kavie.HTM
O9 - Extra button: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 清理上网记录 - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O11 - Options group: [!CNS] 网络实名
O16 - DPF: {D0A29C6C-AA71-4423-8C4A-5998B774C448} (IEDown Class) - http://download.ourgame.com/IEDown4.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{A0B71EF2-E991-43E8-ADC9-CA1A6D91C1A1}: NameServer = 202.103.224.68,202.103.226.68
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINNT\System32\drivers\CDAC11BA.EXE
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: Kingsoft AntiVirus Service (KAVSvc) - kingsoft Antivirus - C:\KAV6\KAVSvc.EXE
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINNT\System32\nvsvc32.exe
