Virus probable non détecté

Bonjour à tous
Tout nouveau sur ce forum, je poste ce message car je crois avoir un virus (ou un truc dasn le genre..., le comportement de mon PC me laisse le supposer).
Je n'ai pas réussi à le localiser (Kaspersky ne trouve rien, ni sur Secuser.com, ni ad-aware...)
Comme je ne m'y connais pas + que ça, je cherche de l'aide...
MERCI par avance de votre aide

Je mets le résultat de hijackthis :

Logfile of HijackThis v1.99.1
Scan saved at 11:14:06, on 08/02/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5730.0011)

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\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\DVD\PowerDVD\PDVDServ.exe
C:\Program Files\D-Link\AirPlus G\AirGCFG.exe
C:\Program Files\ANI\ANIWZCS2 Service\WZCSLDR2.exe
C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Adobe\Acrobat 6.0\Distillr\acrotray.exe
C:\Program Files\DVD\AnyDVD\AnyDVD.exe
C:\PROGRA~1\MOZILL~2\FIREFOX.EXE
C:\PROGRA~1\MOZILL~1\THUNDE~1.EXE
E:\Downloads\AntiVirus\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://actus.sfr.fr
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://actus.sfr.fr
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://home.neuf.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://actus.sfr.fr
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = https://actus.sfr.fr
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: BitComet ClickCapture - {39F7E362-828A-4B5A-BCAF-5B79BFDFEA60} - C:\Program Files\BitComet\tools\BitCometBHO.dll
O2 - BHO: (no name) - {6902F36D-E8DE-4F58-9A64-5B68B888130D} - C:\DOCUME~1\Pierre\LOCALS~1\Temp\~DP5.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files\Adobe\Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [FineReader7NewsReaderPro] "C:\Program Files\FineReader 7.0 Professional Edition\AbbyyNewsReader.exe"
O4 - HKLM\..\Run: [RemoteControl] C:\Program Files\DVD\PowerDVD\PDVDServ.exe
O4 - HKLM\..\Run: [D-Link AirPlus G] C:\Program Files\D-Link\AirPlus G\AirGCFG.exe
O4 - HKLM\..\Run: [ANIWZCS2Service] C:\Program Files\ANI\ANIWZCS2 Service\WZCSLDR2.exe
O4 - HKLM\..\Run: [CloneCDTray] "C:\Program Files\CloneCD\CloneCDTray.exe" /s
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [AnyDVD] C:\Program Files\DVD\AnyDVD\AnyDVD.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - Startup: restart_vs.lnk = I:\Viewsonic.exe
O4 - Global Startup: Adobe Gamma Loader.exe.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Assistant d'Acrobat.lnk = C:\Program Files\Adobe\Acrobat 6.0\Distillr\acrotray.exe
O4 - Global Startup: EPSON Status Monitor 3 Environment Check(3).lnk = C:\WINDOWS\system32\spool\drivers\w32x86\3\E_SRCV03.EXE
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: Download all links using BitComet - res://C:\Program Files\BitComet\BitComet.exe/AddAllLink.htm
O8 - Extra context menu item: Download all videos using BitComet - res://C:\Program Files\BitComet\BitComet.exe/AddVideo.htm
O8 - Extra context menu item: Download link using &BitComet - res://C:\Program Files\BitComet\BitComet.exe/AddLink.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra button: Antivirus Internet - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\scieplugin.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/...
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O20 - Winlogon Notify: klogon - C:\WINDOWS\System32\klogon.dll
O23 - Service: ANIWZCSd Service (ANIWZCSdService) - Alpha Networks Inc. - C:\Program Files\ANI\ANIWZCS2 Service\ANIWZCSdS.exe
O23 - Service: Kaspersky Anti-Virus 6.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe