Alors voila aprés cette (énorme) manip le bilan:

C:\Program Files\YourSiteBar ---->il n'existe pas
C:\WINDOWS\smsc.exe ----->impossible a supprimer: erreur disque plein ou protégé en écriture.

Lors du boot je n'ai plus le message d'erreur RUNDLL

Mais le ctrl+alt+suppr ne marche plus (j'ai l'icone a coté de l'heure mais pas le logiciel)
Impossible d'acceder au mise a jour :

To continue, you must first add this website to your trusted sites in Internet Explorer.
The site cannot determine which updates apply to your computer or display those updates unless you change your security setings to allow ActiveX controls and active scripting. The best way to do this without lowering your security settings is to make this site a trusted website. Your security settings will continue to block potentially harmful ActiveX controls and scripting from other sites but you will be able to get updates.

To make this site a trusted website:

In Internet Explorer, click Tools, and then click Internet Options.
On the Security tab, click the Trusted Sites icon.
Click Sites and under Add this website to the zone, copy and paste these website addresses.
You can only add one address at a time and you must click Add after each one:
http://*.update.microsoft.com
https://*.update.microsoft.com
http://download.windowsupdate.com
Note: The asterisks and different addresses allow your computer to work with the site, no matter how you try to access it from your computer or the Web.


et pour finir voici le hijack:

Logfile of HijackThis v1.99.1
Scan saved at 15:04:39, on 09/10/2005
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\task32w.exe
C:\WINDOWS\System32\taskmgr.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\NOTEPAD.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\System32\wuauclt.exe
C:\hijack\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: FlashFXP Helper for Internet Explorer - {E5A1691B-D188-4419-AD02-90002030B8EE} - C:\PROGRA~1\FlashFXP\IEFlash.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: (no name) - {62999427-33FC-4baf-9C9C-BCE6BD127F08} - (no file)
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKLM\..\Run: [MS taskbar W] task32w.exe
O4 - HKLM\..\RunServices: [MS taskbar W] task32w.exe
O8 - Extra context menu item: &Download with &DAP - C:\PROGRA~1\DAP\dapextie.htm
O8 - Extra context menu item: Download &all with DAP - C:\PROGRA~1\DAP\dapextie2.htm
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM\aim.exe
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://spaces.msn.com//PhotoUpload/MsnPUpld.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe



Voila je te remercie d'avance pour l'énorme travaille que tu as réaliser pour m'expliquer toutes les manip et j'espére que tu pourra encore m'aider pour les quelques problémes restant! ;)