Probleme spyware

Bonjour, j'ai plusieurs spyware que je suis incapable de supprimer.
voici mon résulta de scan hijackthis

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:55:20, on 2008-04-29
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\Rundll32.exe
C:\WINDOWS\system32\rundll32.exe
C:\Documents and Settings\Administrateur\Bureau\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
O4 - HKLM\..\Run: [TrojanScanner] C:\Program Files\Trojan Remover\Trjscan.exe
O4 - HKLM\..\Run: [8c792c1d] rundll32.exe "C:\WINDOWS\system32\xpcylsrv.dll",b
O4 - HKLM\..\Run: [BM8f4a1f81] Rundll32.exe "C:\WINDOWS\system32\fwogbjvt.dll",s
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: SiSoftware Database Agent Service (SandraDataSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite XII.SP1\Win32\RpcDataSrv.exe
O23 - Service: SiSoftware Sandra Agent Service (SandraTheSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite XII.SP1\RpcSandraSrv.exe