Infecté! problème systemdoctor et page de pub

bonjour, j'ai un problème sur windoos XP familial SP2, depuis plusieur jour des fenetres de pub (toujour les même soit navisearch et 2 ou 3 autres) apparaisse lors de mes navigations sur internet. après avoir parcouru le forum j'ai télécharger HITJACKTHIS, qui ma value de retrouver sur la page de "systemdoctor 2006", page que je retrouve a chaque visite sur ce forum! (bizard).
voici le fichier copier du scan de HITJACKTHIS:


Logfile of HijackThis v1.99.1
Scan saved at 10:37:59, on 19/06/2006
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\system32\drivers\CDAC11BA.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\UAService7.exe
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Outlook Express Launcher\OELauncher.exe
C:\Program Files\Outlook Express\msimn.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.free.fr/freebox/index.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.free.fr/freebox/index.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = file://C:/HP/REGION/start.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:/HP/REGION/start.html
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = ;localhost;<local>
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
O2 - BHO: RXResultTracker Class - {59879FA4-4790-461c-A1CC-4EC4DE4CA483} - C:\Program Files\RXToolBar\sfcont.dll (file missing)
O2 - BHO: EoRezoBHO - {64F56FC1-1272-44CD-BA6E-39723696E350} - C:\PROGRA~1\eoRezo\EoAdv\EOREZO~1.DLL (file missing)
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [Zone Labs Client] C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe" /WinStart
O4 - Startup: Anti-Pub.lnk = C:\Program Files\Antipub\antipub.exe
O8 - Extra context menu item: &Search - http://ko.bar.need2find.com/KO/menusearch.html?p=KO
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_04\bin\npjpi150_04.dll
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: Organise-notes - {9455301C-CF6B-11D3-A266-00C04F689C50} - C:\Program Files\Fichiers communs\Microsoft Shared\Reference 2001\EROProj.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
O14 - IERESET.INF: START_PAGE_URL=https://www.free.fr/freebox/index.html
O16 - DPF: {09C21411-B9A2-4DE6-8416-4E3B58577BE0} (France Telecom MDM ActiveX Control) - http://minitelweb.minitel.com/imin_data/ocx/MDM.cab
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab31267.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {6A060448-60F9-11D5-A6CD-0002B31F7455} (ExentInf Class) -
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary/ZIntro.cab32846.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O18 - Protocol: vskype - (no CLSID) - (no file)
O18 - Filter: text/html - {2AB289AE-4B90-4281-B2AE-1F4BB034B647} - C:\Program Files\RXToolBar\sfcont.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: Boonty Games - BOONTY - C:\Program Files\Fichiers communs\BOONTY Shared\Service\Boonty.exe
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\system32\drivers\CDAC11BA.EXE
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: SecuROM User Access Service (V7) (UserAccess7) - Unknown owner - C:\WINDOWS\system32\UAService7.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\SYSTEM32\ZoneLabs\vsmon.exe

HELP ME
merci de votre aide