Je profite de la super communautée du site pour vous faire parvenir le rapport Hijack d'un ami qui a le même problème de lenteur avec son PC :

Logfile of HijackThis v1.99.1
Scan saved at 22:11:16, on 28/08/2005
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
D:\WINNT\System32\smss.exe
D:\WINNT\system32\winlogon.exe
D:\WINNT\system32\services.exe
D:\WINNT\system32\lsass.exe
D:\WINNT\system32\svchost.exe
D:\WINNT\system32\spoolsv.exe
D:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
D:\Program Files\Alwil Software\Avast4\ashServ.exe
D:\Program Files\AVPersonal\AVWUPSRV.EXE
D:\WINNT\System32\svchost.exe
D:\WINNT\system32\regsvc.exe
D:\WINNT\system32\MSTask.exe
D:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
D:\WINNT\system32\stisvc.exe
D:\WINNT\system32\ZoneLabs\vsmon.exe
D:\WINNT\Explorer.EXE
D:\WINNT\System32\WBEM\WinMgmt.exe
D:\WINNT\system32\svchost.exe
D:\WINNT\System32\svchost.exe
D:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
D:\Program Files\AVPersonal\AVGNT.EXE
D:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
D:\Program Files\MessengerPlus! 3\MsgPlus.exe
D:\Program Files\MSN Apps\Updater\01.02.3000.1001\fr\msnappau.exe
D:\Program Files\Java\jre1.5.0_04\bin\jusched.exe
D:\WINNT\system32\LVCOMSX.EXE
D:\Program Files\Logitech\Video\LogiTray.exe
D:\Program Files\QuickTime\qttask.exe
D:\Program Files\NetPumper\NetPumperIEProxy.exe
D:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
D:\WINNT\system32\internat.exe
D:\Program Files\Internet Explorer\iexplore.exe
D:\Program Files\Advanced Messenger Plus\AdvMsg.exe
D:\Program Files\MSN Messenger\msnmsgr.exe
d:\progra~1\intern~1\iexplore.exe
D:\Program Files\Pinnacle\Shared Files\Programs\Scheduler\PCLEScheduler.exe
D:\Program Files\Logitech\Video\FxSvr2.exe
D:\WINNT\system32\wuauclt.exe
D:\Program Files\VoipBuster.com\VoipBuster\VoipBuster.exe
D:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
D:\Program Files\Alwil Software\Avast4\ashWebSv.exe
D:\Program Files\MSN Messenger\msnmsgr.exe
D:\Program Files\Pinnacle\PCTV Stereo\TeleText\WebServer.exe
D:\PROGRA~1\Pinnacle\SHARED~1\Filter\server.exe
D:\PROGRA~1\Pinnacle\SHARED~1\Filter\VBI_SE~1.EXE
D:\Program Files\Mozilla Firefox\firefox.exe
D:\Documents and Settings\nor\Bureau\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://home.free.fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: DownloadRedirect Class - {00000000-6CB0-410C-8C3D-8FA8D2011D0A} - D:\Program Files\iMesh\iMesh5\iMeshBHO.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {3C4BED25-F982-C008-43F3-EC9FBD0DD71C} - D:\DOCUME~1\nor\APPLIC~1\UPLOAD~1\blue tray.exe
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - D:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: ST - {9394EDE7-C8B5-483E-8773-474BF36AF6E4} - D:\Program Files\MSN Apps\ST\01.03.0000.1005\en-xu\stmain.dll
O2 - BHO: MSNToolBandBHO - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - D:\Program Files\MSN Apps\MSN Toolbar\01.02.4000.1001\fr\msntb.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - D:\WINNT\System32\msdxm.ocx
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - D:\Program Files\MSN Apps\MSN Toolbar\01.02.4000.1001\fr\msntb.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - D:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [Zone Labs Client] D:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKLM\..\Run: [AVGCtrl] "D:\Program Files\AVPersonal\AVGNT.EXE" /min
O4 - HKLM\..\Run: [avast!] D:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [MessengerPlus3] "D:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [msnappau] "D:\Program Files\MSN Apps\Updater\01.02.3000.1001\fr\msnappau.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] D:\Program Files\Java\jre1.5.0_04\bin\jusched.exe
O4 - HKLM\..\Run: [LVCOMSX] D:\WINNT\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [LogitechVideoRepair] D:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [LogitechVideoTray] D:\Program Files\Logitech\Video\LogiTray.exe
O4 - HKLM\..\Run: [QuickTime Task] "D:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [NetPumper] "D:\Program Files\NetPumper\NetPumperIEProxy.exe"
O4 - HKLM\..\Run: [CheckMedi8or] D:\Program Files\Mediator6\CheckNewUser.exe
O4 - HKLM\..\Run: [TkBellExe] "D:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [webHancer Survey Companion] "D:\Program Files\webHancer\Programs\whSurvey.exe"
O4 - HKLM\..\Run: [licensecastmultidefy] D:\Documents and Settings\All Users\Application Data\64lieslicensecast\Axis date.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [LogitechSoftwareUpdate] "D:\Program Files\Logitech\Video\ManifestEngine.exe" boot
O4 - HKCU\..\Run: [magsthat] D:\DOCUME~1\nor\APPLIC~1\LOCKSN~1\FUNKACID.exe
O4 - HKCU\..\Run: [MessengerPlus3] "D:\Program Files\MessengerPlus! 3\MsgPlus.exe" /WinStart
O4 - Startup: Registration-Studio 8.lnk = D:\Program Files\Pinnacle\Studio 8\Register\RegTool.exe
O4 - Startup: VoipBuster.lnk = D:\Program Files\VoipBuster.com\VoipBuster\VoipBuster.exe
O4 - Global Startup: Advanced Messenger Plus.lnk = D:\Program Files\Advanced Messenger Plus\AdvMsg.exe
O4 - Global Startup: Pinnacle Scheduler.lnk = D:\Program Files\Pinnacle\Shared Files\Programs\Scheduler\PCLEScheduler.exe
O8 - Extra context menu item: Download with NetPumper - D:\Program Files\NetPumper\AddUrl.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/window [...] 2416296500
O16 - DPF: {867E13F2-7F31-44FB-AC97-CD38E0DC46EF} (HardwareDetection Control) - http://drivers1.free.fr/hardwaredetection.cab
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - D:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - D:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - D:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - D:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - D:\Program Files\AVPersonal\AVWUPSRV.EXE
O23 - Service: Service d'administration du Gestionnaire de disque logique (dmadmin) - VERITAS Software Corp. - D:\WINNT\System32\dmadmin.exe
O23 - Service: Macromedia Licensing Service - Unknown owner - D:\Program Files\Fichiers communs\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - D:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - D:\WINNT\system32\ZoneLabs\vsmon.exe

MERCI D'AVANCE !!!
;-)
PS : Je viens de lire sur un autre post qu'il ne faut pas garder deux abntivirus, lequel garder ? Antivir ou Avast! ?

Personne ne peut aider ???