Hijackthis please

bonjour,
que faut il que je fixe ? merci de pouvoir m'aider

Logfile of HijackThis v1.99.1
Scan saved at 19:35:06, on 24/02/2005
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\WINDOWS\System32\CTHELPER.EXE
C:\PROGRA~1\Softwin\BITDEF~1\bdmcon.exe
C:\Program Files\Softwin\BitDefender8\bdoesrv.exe
C:\PROGRA~1\Softwin\BITDEF~1\bdnagent.exe
C:\Program Files\Softwin\BitDefender8\bdswitch.exe
C:\Program Files\Utilitaires\Utilitaires\D-Tools\daemon.exe
C:\WINDOWS\System32\vrsprtc.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wzdsvc.exe
C:\WINDOWS\System32\wzdsvc.exe
C:\Program Files\Fichiers communs\Softwin\BitDefender Communicator\xcommsvr.exe
C:\Program Files\Fichiers communs\Softwin\BitDefender Scan Server\bdss.exe
C:\Program Files\Softwin\BitDefender8\vsserv.exe
C:\WINDOWS\System32\taskmgr.exe
C:\WINDOWS\system32\rundll32.exe
D:\Utilitaires\Protection\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://minisearch.startnow.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://minisearch.startnow.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.startnow.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://minisearch.startnow.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://minisearch.startnow.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Utilitaires\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: HyperBHO - {4B2F5308-2CB0-40E2-8030-59936ED5D22C} - C:\Program Files\Fichiers communs\Hyperbar\Hyperbar.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [WINDVDPatch] CTHELPER.EXE
O4 - HKLM\..\Run: [UpdReg] C:\WINDOWS\UpdReg.EXE
O4 - HKLM\..\Run: [Jet Detection] "C:\Program Files\Pilotes\Creative\SBLive\PROGRAM\ADGJDet.exe"
O4 - HKLM\..\Run: [BDMCon] C:\PROGRA~1\Softwin\BITDEF~1\bdmcon.exe
O4 - HKLM\..\Run: [BDOESRV] C:\Program Files\Softwin\BitDefender8\\bdoesrv.exe
O4 - HKLM\..\Run: [BDNewsAgent] C:\PROGRA~1\Softwin\BITDEF~1\bdnagent.exe
O4 - HKLM\..\Run: [BDSwitchAgent] C:\Program Files\Softwin\BitDefender8\\bdswitch.exe
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Program Files\Utilitaires\Utilitaires\D-Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [MS Unix Binary] Norton2005Update.exe
O4 - HKLM\..\Run: [Virus Protect] vrsprtc.exe
O4 - HKLM\..\Run: [Dynamic Dns Binary] dynitora.exe
O4 - HKLM\..\RunServices: [Microsoft Update] Svhost.exe
O4 - HKLM\..\RunServices: [MSPluginSrvc] p3.exe
O4 - HKLM\..\RunServices: [Dynamic Dns Binary] dynitora.exe
O4 - HKLM\..\RunServices: [Virus Protect] vrsprtc.exe
O4 - HKLM\..\RunServices: [MS Unix Binary] Norton2005Update.exe
O4 - HKCU\..\Run: [Dynamic Dns Binary] dynitora.exe
O4 - HKCU\..\Run: [MS Unix Binary] Norton2005Update.exe
O8 - Extra context menu item: Bloquer ce serveur... - C:\Program Files\Internet\Avant Browser\AddAllToADBlackList.htm
O8 - Extra context menu item: Bloquer cette publicité... - C:\Program Files\Internet\Avant Browser\AddToADBlackList.htm
O8 - Extra context menu item: Ouvrir tous les liens de la page... - C:\Program Files\Internet\Avant Browser\OpenAllLinks.htm
O8 - Extra context menu item: Rechercher sur le Web... - C:\Program Files\Internet\Avant Browser\Search.htm
O8 - Extra context menu item: Surligner - C:\Program Files\Internet\Avant Browser\Highlight.htm
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
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: BitDefender Scan Server (bdss) - Unknown owner - C:\Program Files\Fichiers communs\Softwin\BitDefender Scan Server\bdss.exe
O23 - Service: BitDefender Virus Shield (VSSERV) - Unknown owner - C:\Program Files\Softwin\BitDefender8\vsserv.exe
O23 - Service: Wireless Zero Daemon (WZDSVC) - Unknown owner - C:\WINDOWS\System32\wzdsvc.exe
O23 - Service: BitDefender Communicator (XCOMM) - Softwin - C:\Program Files\Fichiers communs\Softwin\BitDefender Communicator\xcommsvr.exe