Probleme ouverteure de programme et navigatio

Bonjour,

je constate plusieurs défauts sur mon PC:
- impossible d'ouvrir Windows media : affiche le message " une erreur d'pplication interne s'est produite "
- mon icone internet explorer à disparu bizarement
- sur certains sites impossible d'utiliser certains liens :exemple j'ai voulu télécharger bitdefender online , pas de réaction

alors j'ai lancer spybot : ras
j'ai lancer avast! : ras

ci dessous une copie de Micro HijackThis v2.0.2

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 20:28:07, on 21/03/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16608)
Boot mode: Normal

Running processes:
I:\WINDOWS\System32\smss.exe
I:\WINDOWS\system32\winlogon.exe
I:\WINDOWS\system32\services.exe
I:\WINDOWS\system32\lsass.exe
I:\WINDOWS\system32\svchost.exe
I:\WINDOWS\System32\svchost.exe
I:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
I:\Program Files\Alwil Software\Avast4\ashServ.exe
I:\WINDOWS\system32\spoolsv.exe
I:\Program Files\DU Meter\DUMeterSvc.exe
I:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
I:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
I:\WINDOWS\System32\svchost.exe
I:\Program Files\Alwil Software\Avast4\ashWebSv.exe
I:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
I:\Program Files\Windows Live\Messenger\usnsvc.exe
I:\WINDOWS\Explorer.EXE
I:\PROGRA~1\MESSAG~1\StartMessager.exe
I:\WINDOWS\SOUNDMAN.EXE
I:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
I:\WINDOWS\system32\ctfmon.exe
I:\Program Files\Fichiers communs\Ahead\Lib\NMBgMonitor.exe
I:\Program Files\Fichiers communs\Ahead\Lib\NMIndexStoreSvr.exe
I:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
I:\Program Files\Google\Google Updater\GoogleUpdater.exe
I:\Program Files\Internet Explorer\IEXPLORE.EXE
I:\WINDOWS\system32\wscntfy.exe
I:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
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://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
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 =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,First Home Page = https://support.microsoft.com/en-US/topic/internet-explorer-downloads-d49e1f0d-571c-9a7b-d97e-be248806ca70
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - I:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - I:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - I:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - I:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - I:\Program Files\Google\GoogleToolbarNotifier\2.1.1119.1736\swg.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - I:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe irprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [MessagerStarter Wanadoo] I:\PROGRA~1\MESSAG~1\StartMessager.exe Messager Wanadoo
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NeroFilterCheck] I:\Program Files\Fichiers communs\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [avast!] I:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [RavAV] I:\WINDOWS\RavMonE.exe
O4 - HKCU\..\Run: [CTFMON.EXE] I:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "I:\Program Files\Fichiers communs\Ahead\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [swg] I:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [DU Meter] I:\Program Files\DU Meter\DUMeter.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] I:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-21-1844237615-220523388-839522115-1006\..\Run: [CTFMON.EXE] I:\WINDOWS\system32\ctfmon.exe (User 'rose')
O4 - HKUS\S-1-5-21-1844237615-220523388-839522115-1006\..\Run: [Uniblue RegistryBooster 2] I:\Program Files\Uniblue\RegistryBooster 2\RegistryBooster.exe /S (User 'rose')
O4 - HKUS\S-1-5-21-1844237615-220523388-839522115-1006\..\Run: [DU Meter] I:\Program Files\DU Meter\DUMeter.exe (User 'rose')
O4 - HKUS\S-1-5-21-1844237615-220523388-839522115-1006\..\Run: [MsnMsgr] "I:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background (User 'rose')
O4 - HKUS\S-1-5-21-1844237615-220523388-839522115-1006\..\Run: [MSMSGS] "I:\Program Files\Messenger\msmsgs.exe" /background (User 'rose')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] I:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O4 - Startup: Olifax-Voix.lnk = I:\OLIFAXVX\OLIFAX.EXE
O4 - Global Startup: Outil de mise à jour Google.lnk = I:\Program Files\Google\Google Updater\GoogleUpdater.exe
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - I:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - I:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - I:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - I:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - I:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - I:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - I:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {67DABFBF-D0AB-41FA-9C46-CC0F21721616} (DivXBrowserPlugin Object) - http://download.divx.com/player/DivXBrowserPlugin.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{6A446163-F3F3-4833-9340-55B85BC4E81E}: NameServer = 217.175.160.11 217.175.160.12
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - I:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - I:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - I:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - I:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: BvrpKrnl - Unknown owner - I:\Program Files\WinPhone Ultimate Edition\BVRPKrnl.exe
O23 - Service: DU Meter Service (DUMeterSvc) - Hagel Technologies Ltd - I:\Program Files\DU Meter\DUMeterSvc.exe
O23 - Service: Google Updater Service (gusvc) - Google - I:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - I:\Program Files\Fichiers communs\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: NBService - Nero AG - I:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - I:\Program Files\Fichiers communs\Ahead\Lib\NMIndexingService.exe
O23 - Service: ScriptBlocking Service (SBService) - Unknown owner - I:\PROGRA~1\FICHIE~1\SYMANT~1\SCRIPT~1\SBServ.exe (file missing)