Trojan startpage

Salut mon pc a été "infecté" par le trojan startpage; après plusieurs anti-trojans je ne le trouve plus ! ma page d'accueil de iexplorer change pour "about blank" et des messages d'erreur apparaissent régulièrement . Voici mon hijackthis

Logfile of HijackThis v1.97.7
Scan saved at 15:22:14, on 05/05/2004
Platform: Windows ME (Win9x 4.90.3000)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\SYSTEM\SSDPSRV.EXE
C:\WINDOWS\SYSTEM\MDM.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\RESTORE\STMGR.EXE
C:\WINDOWS\TASKMON.EXE
C:\PROGRAM FILES\AVPERSONAL\AVGCTRL.EXE
C:\PROGRAM FILES\TROJANHUNTER 3.8\THGUARD.EXE
C:\PROGRAM FILES\WINDOWS MEDIA COMPONENTS\ENCODER\WMENCAGT.EXE
C:\PROGRAM FILES\SAGEM\SAGEM F@ST 800-840\DSLMON.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\PSTORES.EXE
C:\PROGRAM FILES\DAP\DAP.EXE
C:\WINDOWS\TEMP\QZTEMP\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\SYSTEM\PLJEE.DLL/sp.html (obfuscated)
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\SYSTEM\PLJEE.DLL/sp.html (obfuscated)
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://tiscali.fr/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\SYSTEM\PLJEE.DLL/sp.html (obfuscated)
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\SYSTEM\PLJEE.DLL/sp.html (obfuscated)
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\SYSTEM\PLJEE.DLL/sp.html (obfuscated)
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\SYSTEM\PLJEE.DLL/sp.html (obfuscated)
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer - Liberty Surf -
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {01D37E66-BA11-4D64-B32C-1E9A7CB77323} - (no file)
O2 - BHO: (no name) - {B2D9308A-FC74-4A76-A511-44C2E924D2B3} - C:\WINDOWS\SYSTEM\PLJEE.DLL
O3 - Toolbar: (no name) - {72A58725-2635-4725-8C53-676DFD1FEB8D} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [PCHealth] C:\WINDOWS\PCHealth\Support\PCHSchd.exe -s
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [AVGCtrl] C:\PROGRAM FILES\AVPERSONAL\AVGCTRL.EXE /min
O4 - HKLM\..\Run: [autoclk] autoclk.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\WINDOWS\SYSTEM\QTTASK.EXE" -atboottime
O4 - HKLM\..\Run: [THGuard] "C:\PROGRAM FILES\TROJANHUNTER 3.8\THGUARD.EXE"
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [SSDPSRV] C:\WINDOWS\SYSTEM\ssdpsrv.exe
O4 - HKLM\..\RunServices: [*StateMgr] C:\WINDOWS\System\Restore\StateMgr.exe
O4 - HKLM\..\RunServices: [Machine Debug Manager] C:\WINDOWS\SYSTEM\MDM.EXE
O4 - HKLM\..\RunServices: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - Startup: EPSON Status Monitor 3 Environment Check 2.lnk = C:\WINDOWS\SYSTEM\E_SRCV02.EXE
O4 - Startup: Encoder Agent.lnk = C:\Program Files\Windows Media Components\Encoder\WMENCAGT.EXE
O4 - Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
O8 - Extra context menu item: &Download with &DAP - C:\PROGRA~1\DAP\dapextie.htm
O8 - Extra context menu item: &Sample Toolband Serach - res://C:\WINDOWS\SYSTEM\ZEROPO~1.DLL/MENUSEARCH.HTM
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O9 - Extra button: Real.com (HKLM)
O14 - IERESET.INF: START_PAGE_URL=http://www.libertysurf.fr
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {166B1BCA-3F9C-11CF-8075-444553540000} (Shockwave ActiveX Control) - http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as/asinst.cab
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/ansi/iuctl.CAB?37900.3150347222
O16 - DPF: {7DBFDA8E-D33B-11D4-9269-00600868E56E} (WWWInstall Class) - http://go.securelive.com/speed/WebInstall.dll
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://www.apple.com/qtactivex/qtplugin.cab
O16 - DPF: {70BA88C8-DAE8-4CE9-92BB-979C4A75F53B} (GSDACtl Class) - http://launch.gamespyarcade.com/software/launch/alaunch.cab
O16 - DPF: {EFB22865-F3BC-4309-ADFA-C8E078A7F762} (SysWebTelecomInt Class) - http://www.sponsoradulto.com/fr/SysWebTelecom.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004033001/housecall.antivirus.com/housecall/xscan53.cab

pouvez- vous m'aider svp je vous remercie par avance Jerôme