Log, HijackThis, petit avis

Logfile of HijackThis v1.99.1
Scan saved at 08:55:20, on 23/01/2006
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\AVPersonal\AVGNT.EXE
C:\WINDOWS\system32\RunDLL32.exe
C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Messenger\MSMSGS.EXE
C:\WINDOWS\BricoPacks\Vista Inspirat\ObjectDock\ObjectDock.exe
C:\WINDOWS\BricoPacks\Vista Inspirat\YzToolbar\YzToolBar.exe
C:\Program Files\AVPersonal\AVGUARD.EXE
C:\Program Files\AVPersonal\AVWUPSRV.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Winamp\winamp.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\DOCUMENTS AND SETTINGS\DANTE\BUREAU\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://loginnet.passport.com/ppsecure/md5auth.srf?lc=1...
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: BHObj Class - {8F4E5661-F99E-4B3E-8D85-0EA71C0748E4} - C:\WINDOWS\wsem303.dll (file missing)
O4 - HKLM\..\Run: [AVGCtrl] C:\Program Files\AVPersonal\AVGNT.EXE /min
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RunDLL32.exe NvMCTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Media Gateway] C:\WINDOWS\System32\expIorer.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\MSMSGS.EXE" /background
O4 - Startup: Stardock ObjectDock.lnk = C:\WINDOWS\BricoPacks\Vista Inspirat\ObjectDock\ObjectDock.exe
O4 - Startup: Y'z ToolBar.lnk = C:\WINDOWS\BricoPacks\Vista Inspirat\YzToolbar\YzToolBar.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.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
O15 - Trusted Zone: *.registration.sonystyle-europe.com (HKLM)
O17 - HKLM\System\CCS\Services\Tcpip\..\{93307D6F-57D4-49BC-B304-64B9F32C0D2C}: NameServer = 212.27.54.252
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Fichiers communs\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: AntiVir Service (AntiVirService) - H+BEDV Datentechnik GmbH - C:\Program Files\AVPersonal\AVGUARD.EXE
O23 - Service: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - C:\Program Files\AVPersonal\AVWUPSRV.EXE
O23 - Service: Macromedia Licensing Service - Unknown owner - C:\Program Files\Fichiers communs\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe