Comment virer dpn.dll ?

Bonjour à tous

voilà, petit problème, je n'arrive pas à supprimer le virus dpn.dll même en mode sans échec...

J'ai comme l'impression qu'il a autre chose qui cloche...
voici mon log hijackthis, si ça peut aider :

Logfile of HijackThis v1.97.7
Scan saved at 16:26:04, on 15/07/04
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v5.51 SP2 (5.51.4807.2300)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\PROGRAM FILES\FICHIERS COMMUNS\SYMANTEC SHARED\CCEVTMGR.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\PROGRAM FILES\FICHIERS COMMUNS\SYMANTEC SHARED\CCAPP.EXE
C:\PROGRAM FILES\WANADOO\TASKBARICON.EXE
C:\PROGRAM FILES\MESSAGER WANADOO\DEMON.EXE
C:\PROGRAM FILES\ALCATEL\SPEEDTOUCH USB\DRAGDIAG.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\WINDOWS\SYSTEM\QTTASK.EXE
C:\WINDOWS\LOADQM.EXE
C:\PROGRAM FILES\MSN MESSENGER\MSNMSGR.EXE
C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\OSA.EXE
C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\FINDFAST.EXE
C:\PROGRAM FILES\NIKON\NKVIEW5\NKVMON.EXE
C:\PROGRAM FILES\FOTOSTATION EASY\FOTOSTATION EASY AUTOLAUNCH.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAM FILES\WANADOO\ESPACEWANADOO.EXE
C:\PROGRAM FILES\WANADOO\COMCOMP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\PROGRAM FILES\WANADOO\WATCH.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\PROGRAM FILES\WINRAR\WINRAR.EXE
C:\PROGRAM FILES\ACCESSOIRES\WORDPAD.EXE
C:\PHILIPPE\TELECHARGEMENTS\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\WINDOWS\TEMP\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\WINDOWS\TEMP\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.wanadoo.fr
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\WINDOWS\TEMP\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\WINDOWS\TEMP\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\WINDOWS\TEMP\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.wanadoo.fr
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\WINDOWS\TEMP\sp.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = http://www.wanadoo.fr
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = http://www.wanadoo.fr
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - C:\PROGRA~1\WANADOO\SEARCH~1.DLL
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 5.0\READER\ACTIVEX\ACROIEHELPER.OCX
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: (no name) - {404D5A41-D618-11D8-B9F7-4445105AFF14} - C:\WINDOWS\SYSTEM\DPN.DLL
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: @msdxmLC.dll,-1@1036,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ccRegVfy] "C:\Program Files\Fichiers communs\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\WANADOO\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\WANADOO\TaskbarIcon.exe
O4 - HKLM\..\Run: [Demon] C:\PROGRA~1\MESSAG~1\Demon.exe
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Alcatel\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [QuickTime Task] C:\WINDOWS\SYSTEM\QTTASK.EXE
O4 - HKLM\..\Run: [StorageGuard] "C:\Program Files\VERITAS Software\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [WinTime] C:\WINDOWS\system32\wintime.exe
O4 - HKLM\..\Run: [User Mansger] user32.exe
O4 - HKLM\..\Run: [SVCHOST] C:\WINDOWS\svchost.exe 1
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [ccEvtMgr] "C:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe"
O4 - HKLM\..\RunServices: [ScriptBlocking] "C:\Program Files\Fichiers communs\Symantec Shared\Script Blocking\SBServ.exe" -reg
O4 - HKCU\..\Run: [msnmsgr] "C:\PROGRAM FILES\MSN MESSENGER\MSNMSGR.EXE" /background
O4 - Startup: Démarrage d'Office.lnk = C:\Program Files\Microsoft Office\Office\OSA.EXE
O4 - Startup: Microsoft Recherche accélérée.lnk = C:\Program Files\Microsoft Office\Office\FINDFAST.EXE
O4 - Startup: Pense-bête.lnk = C:\Program Files\Broderbund\PrintMaster\PMREMIND.EXE
O4 - Startup: NkvMon.exe.lnk = C:\Program Files\Nikon\NkView5\NkvMon.exe
O4 - Startup: FotoStation Easy AutoLaunch.lnk = C:\Program Files\FotoStation Easy\FotoStation Easy AutoLaunch.exe
O8 - Extra context menu item: &Google Search - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR2.DLL/cmsearch.html
O8 - Extra context menu item: Cac&hed Snapshot of Page - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR2.DLL/cmcache.html
O8 - Extra context menu item: Si&milar Pages - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR2.DLL/cmsimilar.html
O8 - Extra context menu item: Backward &Links - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR2.DLL/cmbacklinks.html
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/ansi/iuctl.CAB?38133.4640162037
O16 - DPF: {33564D57-0000-0010-8000-00AA00389B71} - http://download.microsoft.com/download/F/6/E/F6E491A6-77E1-4E20-9F5F-94901338C922/wmv9VCM.CAB
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab
O16 - DPF: {A3009861-330C-4E10-822B-39D16EC8829D} (CRAVOnline Object) - http://www.ravantivirus.com/scan/ravonline.cab
O16 - DPF: {3E68E405-C6DE-49FF-83AE-41EE9F4C36CE} (Office Update Installation Engine) - http://office.microsoft.com/officeupdate/content/opuc.cab
O16 - DPF: {94B82441-A413-4E43-8422-D49930E69764} (TLIEFlashObj Class) - http://rtc3.webresponse.one.microsoft.com/media/xp/TLIEFlash.CAB
O16 - DPF: {11111111-1111-1111-1111-111111113456} - file://c:\info6_s.cab
O16 - DPF: {0000000A-0000-0010-8000-00AA00389B71} - http://download.microsoft.com/download/d/4/4/d446e8a9-3a86-4b59-bb19-f5bd11b40367/wmavax.CAB

Que faire ?
merci d'avance