Virus sur windows live

Bonjour,
voila j'ai ouvert un lien que l'on ma envoyé et il se trouve que s'est un virus. du coup maintenant le lien se met sur tout mes contacts msn et ouvre toute les fenetres de mes contacts en ligne... avec le lien.. je ne peux plus me servir de la sourire, et je dois attendre que toutes les fenetres soient ouvertes pour retrouver l'utilisation de la souris.
j'ai installer hsjackthis et ca m'a donné ca:

Logfile of HijackThis v1.99.1
Scan saved at 14:06:57, on 02/04/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS.1\System32\smss.exe
C:\WINDOWS.1\system32\winlogon.exe
C:\WINDOWS.1\system32\services.exe
C:\WINDOWS.1\system32\lsass.exe
C:\WINDOWS.1\system32\svchost.exe
C:\WINDOWS.1\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS.1\system32\spoolsv.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS.1\system32\svchost.exe
C:\WINDOWS.1\Explorer.EXE
C:\WINDOWS.1\system32\RunDll32.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Creative\Creative Live! Cam\VideoFX\StartFX.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
C:\WINDOWS.1\VM_STI.EXE
C:\WINDOWS.1\system32\ctfmon.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\NETGEAR\WG111v3\WG111v3.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Philips\Philips SPC315NC Webcam\TrayMin315.exe
C:\Program Files\ZyDAS Technology Corporation\ZyDAS_802.11g_Utility\ZDWlan.exe
C:\PROGRA~1\Mozilla Firefox\firefox.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Windows Live\installer\WLSetupSvc.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Alwil Software\Avast4\ashSimpl.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Source Engine\OSE.EXE
C:\Documents and Settings\Stéphanie\Bureau\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?redirfallthru=http%3a%2f%2fwww.msn.fr%2fimg%2ffr%2ffr-fr%2filovemessenger%2fmars2005%2fbetty_boop.png%3f
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Alice ADSL
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: UserInit=C:\WINDOWS.1\system32\userinit.exe,C:\WINDOWS.1\system32\^^^^^.exe
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS.1\system32\NeroCheck.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [AVFX Engine] C:\Program Files\Creative\Creative Live! Cam\VideoFX\StartFX.exe
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [BigDogPath] C:\WINDOWS.1\VM_STI.EXE %;USB\VID_0AC8&PID_0302.DeviceDesc%
O4 - HKLM\..\Run: [Flash Media] C:\WINDOWS.1\system32\^^^^^.exe
O4 - HKLM\..\RunOnce: [MessengerPlusLiveUninstall] "C:\DOCUME~1\STPHAN~1\LOCALS~1\Temp\MsgPlusUninstall.exe" /Cleanup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS.1\system32\ctfmon.exe
O4 - HKCU\..\Run: [Steam] C:\Valve\Steam\Steam.exe -silent
O4 - Startup: Thumbs.db
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: NETGEAR WG111v3 Smart Wizard.lnk = C:\Program Files\NETGEAR\WG111v3\WG111v3.exe
O4 - Global Startup: TrayMin315.exe.lnk = ?
O4 - Global Startup: ZDWLan Utility.lnk = C:\Program Files\ZyDAS Technology Corporation\ZyDAS_802.11g_Utility\ZDWlan.exe
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: Ajout Direct - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Ajout Direct dans Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
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
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WINDOW~4\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WINDOW~4\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: wlmailhtml - {03C514A3-1EFB-4856-9F99-10D7BE1653C0} - C:\Program Files\Windows Live\Mail\mailcomm.dll
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - 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: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe

Que dois je faire.j'ai deja desinstaller et reinstaller wlm, ms la jsais plus quoi faire.
Aidez moi svp