Salut !
Je ne m'y connais pas encore bien, mais tu sembles avoir 2 antivirus !
Alors faut en oter un !
Pour Norton, bonjour la galère, mais cherche, il y a des outils adaptés.

ça aussi me parait inutile :
O16 - DPF: {70BA88C8-DAE8-4CE9-92BB-979C4A75F53B} (GSDACtl Class) - http://launch.gamespyarcade.com/software/launch/alaunch.cab
*** Si on m'explique longtemps, je comprends très vite ! ***

Merci pour ton aide ;
J'ai donc enlevé un des 2 antivirus + l'analyse ad-aware et spybot + fixé la ligne citée .................et c'est toujours pareil ( avec ping au plafond!)
Voici un nouveau rapport hijackthis

Virus ou pas?

ogfile of HijackThis v1.99.1
Scan saved at 01:59:13, on 14/03/2006
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\Symantec_Client_Security\Symantec AntiVirus\DefWatch.exe
C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\NISUM.EXE
C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\Rtvscan.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
C:\KMaestro\Key_f.EXE
C:\PROGRA~1\SYMANT~1\SYMANT~2\IAMAPP.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\rundll32.exe
C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\SymPxSvc.exe
C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\NISSERV.EXE
C:\PROGRA~1\WHATPU~1\WHATPU~1.EXE
C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.exe
C:\Program Files\SAGEM\SAGEM F@st 800-908\dslmon.exe
C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\wkcalrem.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\KMaestro\WTS_KEY.EXE
C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\ATRACK.EXE
C:\Documents and Settings\sm\Bureau\Q3E Minimizer_v1.30.exe
C:\Program Files\MSN\MSNCoreFiles\msn6.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\The All-Seeing Eye\eye.exe
C:\Program Files\Hijackthis Version Française\VERSION TRADUITE ORIGINALE.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.free.fr/search/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://freebox.free.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://freebox.free.fr/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.unika.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: &Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe irprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\System32\\NeroCheck.exe
O4 - HKLM\..\Run: [WorksFUD] C:\Program Files\Microsoft Works\wkfud.exe
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Microsoft Works\WkDetect.exe
O4 - HKLM\..\Run: [KeyMaestro] C:\KMaestro\KMaestro.exe
O4 - HKLM\..\Run: [Omnipage] C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
O4 - HKLM\..\Run: [iamapp] C:\PROGRA~1\SYMANT~1\SYMANT~2\IAMAPP.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\System32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\System32\NeroCheck.exe
O4 - HKCU\..\Run: [WhatPulse] C:\PROGRA~1\WHATPU~1\WHATPU~1.EXE
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Fichiers communs\Ahead\lib\NMBgMonitor.exe"
O4 - Global Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-908\dslmon.exe
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
O4 - Global Startup: Norton Internet Security Professional.lnk = C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\IntroWiz.exe
O4 - Global Startup: Rappels du Calendrier Microsoft Works.lnk = ?
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: &eBay Search - res://C:\Program Files\eBay\eBay Toolbar2\eBayTb.dll/RCSearch.html
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O14 - IERESET.INF: START_PAGE_URL=http://freebox.free.fr/
O16 - DPF: {0E79192A-C52C-4260-920F-639AC2296203} - http://scripts.downloadv3.com/binaries/P2EClient/EGAUTH_1048_FR_XP.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan8/oscan8.cab
O16 - DPF: {B2B0AEDF-7CDF-4792-BB67-7654AD1E1B13} - http://scripts.downloadv3.com/binaries/IA/sysinetsvc32_FR_XP.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {EFB23983-5803-4914-ADA3-C0EA2CFBDC37} - http://scripts.downloadv3.com/binaries/EGDAccess/EGDACCESS_1072_XP.cab
O20 - Winlogon Notify: NavLogon - C:\WINDOWS\System32\NavLogon.dll
O23 - Service: DefWatch - Symantec Corporation - C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\DefWatch.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Symantec Client Firewall Service (NISSERV) - Symantec Corporation - C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\NISSERV.EXE
O23 - Service: Symantec Client Firewall Accounts Manager (NISUM) - Symantec Corporation - C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\NISUM.EXE
O23 - Service: Symantec AntiVirus Client (Norton AntiVirus Server) - Symantec Corporation - C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\Rtvscan.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Symantec Client Firewall Proxy Service (SymPxSvc) - Symantec Corporation - C:\Program Files\Symantec_Client_Security\Symantec Client Firewall\SymPxSvc.exe

Salut,
J'ai fait "toutcommetumasdit"(4 passages pour ccleaner)+ une mise à jour freebox et tout est rentré dans l'ordre.
merci pour ton aide precieuse.