demande de renseignements

bonjour,j'ai fait une analyse de mon systeme et j'aurais aimé savoir si il y a des virus sur mon ordinateur car je doute un peux de l'efficacité de mon anti virus aussi voiçi le rapport et je remerçi d'avance la personne qui pourras me repondre:
Logfile of HijackThis v1.99.1
Scan saved at 9:13:42, on 3/02/2006
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\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\INF\MSI\SlowDownCPU\SlowDownCPU.exe
C:\WINDOWS\system32\VTtrayp.exe
C:\WINDOWS\system32\VTTimer.exe
C:\Program Files\VIAudioi\SBADeck\ADeck.exe
C:\Program Files\Microsoft Hardware\Keyboard\type32.exe
C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
C:\Program Files\Creative\Shared Files\CAMTRAY.EXE
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\PROGRA~1\mcafee.com\vso\mcvsshld.exe
C:\PROGRA~1\mcafee.com\agent\mcagent.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MpfTray.exe
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.exe
C:\Program Files\WinZip\WZQKPICK.EXE
c:\progra~1\mcafee.com\vso\mcvsescn.exe
C:\PROGRA~1\INCRED~1\bin\IMApp.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MpfAgent.exe
c:\progra~1\mcafee.com\vso\mcvsftsn.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
c:\program files\mcafee.com\agent\mcdetect.exe
c:\PROGRA~1\mcafee.com\agent\mctskshd.exe
c:\PROGRA~1\mcafee.com\vso\mcvsrte.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MPFSERVICE.exe
C:\WINDOWS\system32\svchost.exe
c:\PROGRA~1\mcafee.com\vso\mcshield.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\PROGRA~1\WINZIP\winzip32.exe
C:\Documents and Settings\meriem\Local Settings\Temp\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://fr.rd.yahoo.com/customize/ycomp/defaults/sp/*http://fr.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://fr.yahoo.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://fr.rd.yahoo.com/customize/ycomp/defaults/su/*http://fr.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: McAfee VirusScan - {BA52B914-B692-46c4-B683-905236F6F655} - c:\progra~1\mcafee.com\vso\mcvsshl.dll
O4 - HKLM\..\Run: [SlowDownCPU] C:\WINDOWS\INF\MSI\SlowDownCPU\SlowDownCPU.exe
O4 - HKLM\..\Run: [VTTrayp] VTtrayp.exe
O4 - HKLM\..\Run: [VTTimer] VTTimer.exe
O4 - HKLM\..\Run: [AudioDeck] C:\Program Files\VIAudioi\SBADeck\ADeck.exe 1
O4 - HKLM\..\Run: [IntelliType] "C:\Program Files\Microsoft Hardware\Keyboard\type32.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
O4 - HKLM\..\Run: [Creative WebCam Tray] C:\Program Files\Creative\Shared Files\CAMTRAY.EXE
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [VSOCheckTask] "c:\PROGRA~1\mcafee.com\vso\mcmnhdlr.exe" /checktask
O4 - HKLM\..\Run: [VirusScan Online] "c:\PROGRA~1\mcafee.com\vso\mcvsshld.exe"
O4 - HKLM\..\Run: [MCAgentExe] c:\PROGRA~1\mcafee.com\agent\mcagent.exe
O4 - HKLM\..\Run: [MCUpdateExe] C:\PROGRA~1\mcafee.com\agent\McUpdate.exe
O4 - HKLM\..\Run: [MPFExe] C:\PROGRA~1\McAfee.com\PERSON~1\MpfTray.exe
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [IncrediMail] C:\Program Files\IncrediMail\bin\IncMail.exe /c
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe" /WinStart
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - Global Startup: Lancement rapide d'Adobe Reader.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: &Traduire à partir de l'anglais - res://C:\Program Files\Google\GoogleToolbar1.dll/cmwordtrans.html
O8 - Extra context menu item: Pages liées - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Recherche &Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Program Files\Fichiers communs\Microsoft Shared\Encarta Search Bar\ENCSBAR.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
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=48835
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common...
O16 - DPF: {8EC69950-F299-40AC-A004-3BF5176F8F7B} (FlowScan Control) - http://www.checkspy.com/fr/FlowScan.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDown...
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: McAfee WSC Integration (McDetect.exe) - McAfee, Inc - c:\program files\mcafee.com\agent\mcdetect.exe
O23 - Service: McAfee.com McShield (McShield) - Unknown owner - c:\PROGRA~1\mcafee.com\vso\mcshield.exe
O23 - Service: McAfee Task Scheduler (McTskshd.exe) - McAfee, Inc - c:\PROGRA~1\mcafee.com\agent\mctskshd.exe
O23 - Service: McAfee SecurityCenter Update Manager (mcupdmgr.exe) - McAfee, Inc - C:\PROGRA~1\McAfee.com\Agent\mcupdmgr.exe
O23 - Service: McAfee.com VirusScan Online Realtime Engine (MCVSRte) - McAfee, Inc - c:\PROGRA~1\mcafee.com\vso\mcvsrte.exe
O23 - Service: McAfee Personal Firewall Service (MpfService) - McAfee Corporation - C:\PROGRA~1\McAfee.com\PERSON~1\MPFSERVICE.exe
O23 - Service: TuneUp WinStyler Theme Service (TUWinStylerThemeSvc) - TuneUp Software GmbH - C:\Program Files\TuneUp Utilities 2006\WinStylerThemeSvc.exe