Mon pc est infecté

Bonjour
Voici mon probleme
mon pc a été infecté par Vempyre
j'ai executé adware , spybot , regfreeze , spycleaner , resultat ils m'on viré plein de petit fichiers ...
Je ne peux pas acceder au gestionnaire de tache , ni au bureau en mode sans echec (reboot) il ya un autre compte admin sur mon pc (visible qu'en mode sans echec).
de plus mon pc tourne mal , sous des jeux en 3D ca ralenti pas mal.
Comment m'en debarraser ?

Logfile of HijackThis v1.99.1
Scan saved at 01:01:29, on 12/03/2005
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\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Ahead\InCD\InCDsrv.exe
C:\Program Files\Sygate\SPF\smc.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Ahead\InCD\InCD.exe
C:\Program Files\GigaByte\VGA Utility Manager\G-VGA.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\CursorXP\CursorXP.exe
C:\Program Files\eMule\emule.exe
C:\Program Files\Opera 8 Beta\Opera.exe
C:\Documents and Settings\ak-prod\Bureau\DVD\secu\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [VGAUtil] C:\Program Files\GigaByte\VGA Utility Manager\G-VGA.exe
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKCU\..\Run: [STYLEXP] C:\Program Files\TGTSoft\StyleXP\StyleXP.exe -Hide
O4 - HKCU\..\Run: [CursorXP] C:\Program Files\CursorXP\CursorXP.exe
O4 - HKCU\..\Run: [Spy Watcher] "C:\PROGRA~1\SPYCLE~1\SpyWatcher.exe" -S
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - Startup: RegFreeze.lnk = C:\Program Files\RegFreeze\regfreeze.exe
O8 - Extra context menu item: &Tout télécharger en utilisant Mass Downloader - C:\Program Files\Mass Downloader\Add_All.htm
O8 - Extra context menu item: Télécharger en utilisant &Mass Downloader - C:\Program Files\Mass Downloader\Add_Url.htm
O9 - Extra button: Mass Downloader - {0FD01980-CCCB-11D3-80D4-0000E80E2EDE} - C:\Program Files\Mass Downloader\massdown.exe
O9 - Extra 'Tools' menuitem: &Mass Downloader - {0FD01980-CCCB-11D3-80D4-0000E80E2EDE} - C:\Program Files\Mass Downloader\massdown.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1108588906765
O17 - HKLM\System\CCS\Services\Tcpip\..\{FDE29C2B-D9CB-4B01-ABC5-F0289BB7246B}: NameServer = 80.10.246.5 80.10.246.136
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: InCD Helper (InCDsrv) - Ahead Software AG - C:\Program Files\Ahead\InCD\InCDsrv.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Sandra Data Service (SandraDataSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite 2005\RpcDataSrv.exe
O23 - Service: Sandra Service (SandraTheSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite 2005\RpcSandraSrv.exe
O23 - Service: Sygate Personal Firewall (SmcService) - Sygate Technologies, Inc. - C:\Program Files\Sygate\SPF\smc.exe
O23 - Service: StyleXPService - Unknown owner - C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe