Voici le scan hijackthis :

Logfile of HijackThis v1.99.1
Scan saved at 23:47:29, on 22/08/05
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\ESM2\SAGENT2.EXE
C:\PROGRAM FILES\FICHIERS COMMUNS\SYMANTEC SHARED\CCSETMGR.EXE
C:\PROGRAM FILES\FICHIERS COMMUNS\SYMANTEC SHARED\CCEVTMGR.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\PROGRAM FILES\SYGATE\SPF\SMC.EXE
c:\windows\SYSTEM\KB891711\KB891711.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SYSTEM\WBEM\WINMGMT.EXE
C:\PROGRAM FILES\FICHIERS COMMUNS\SYMANTEC SHARED\CCAPP.EXE
C:\WINDOWS\LOADQM.EXE
C:\WINDOWS\RunDLL.exe
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\MSN MESSENGER\MSNMSGR.EXE
C:\PROGRAM FILES\WANADOO\UTILISATEUR1\MA MUSIQUE\MIRC.EXE
C:\PROGRAM FILES\WANADOO\UTILISATEUR1\HIJACKTHIS.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 148.244.150.58:80
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F1 - win.ini: run=hpfsched
O2 - BHO: CNavExtBho Class - {BDF3E430-B101-42AD-A544-FADC6B084872} - c:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 5.0\READER\ACTIVEX\ACROIEHELPER.OCX
O2 - BHO: (no name) - {008DB894-99ED-445D-8547-0E7C9808898D} - C:\WINDOWS\MSLAGENT\4B_1,0,1,2_MSLAGENT.DLL
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - c:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.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: [3dfx Tools] rundll32.exe 3dfxCmn.dll,UpdateRegSettings
O4 - HKLM\..\Run: [ccApp] "c:\Program Files\Fichiers communs\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NAV CfgWiz] c:\Program Files\Fichiers communs\Symantec Shared\CfgWiz.exe /GUID NAV /CMDLINE "REBOOT"
O4 - HKLM\..\Run: [CriticalUpdate] c:\windows\SYSTEM\wucrtupd.exe -startup
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\SYGATE\SPF\SMC.EXE -startgui
O4 - HKLM\..\Run: [OneClick] "C:\Program Files\oneclick\oneclick.exe"
O4 - HKLM\..\Run: [PATCH] C:\WINDOWS\PATCH.EXE /nomsg
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMON.EXE /Consumer
O4 - HKLM\..\Run: [QuickTime Task] "C:\WINDOWS\SYSTEM\QTTASK.EXE" -atboottime
O4 - HKLM\..\Run: [WildTangent CDA] "C:\Program Files\WildTangent\Apps\CDA\GameDrvr.exe" /startup C:\PROGRA~1\WILDTA~1\APPS\CDA\CDAENG~1.DLL
O4 - HKLM\..\Run: [ViewMgr] C:\Program Files\Viewpoint\Viewpoint Manager\ViewMgr.exe
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SAgent2ExePath] C:\ESM2\SAgent2.exe
O4 - HKLM\..\RunServices: [ScriptBlocking] "C:\Program Files\Fichiers communs\Symantec Shared\Script Blocking\SBServ.exe" -reg
O4 - HKLM\..\RunServices: [ccSetMgr] "c:\Program Files\Fichiers communs\Symantec Shared\ccSetMgr.exe"
O4 - HKLM\..\RunServices: [ccEvtMgr] "c:\Program Files\Fichiers communs\Symantec Shared\ccEvtMgr.exe"
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [SmcService] C:\PROGRAM FILES\SYGATE\SPF\SMC.EXE
O4 - HKLM\..\RunServices: [KB891711] c:\windows\SYSTEM\KB891711\KB891711.EXE
O4 - HKCU\..\Run: [Taskbar Display Controls] RunDLL deskcp16.dll,QUICKRES_RUNDLLENTRY
O4 - HKCU\..\Run: [ALUAlert] C:\Program Files\Symantec\LiveUpdate\ALUNotify.exe
O4 - HKCU\..\Run: [napwdll32] C:\WINDOWS\System32\napwdll32.exe
O4 - HKCU\..\Run: [NeroChecks] C:\WINDOWS\System32\rdlt32.exe
O4 - Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O4 - Startup: EPSON Contrôleur en arrière plan.lnk = C:\ESM2\STMS.exe
O4 - Startup: Adobe Gamma Loader.lnk = C:\Program Files\Fichiers communs\Adobe\Calibration\Adobe Gamma Loader.exe
O8 - Extra context menu item: &Search - http://bar.mywebsearch.com/menusearch.html?p=ZNxmk045YYFR
O8 - Extra context menu item: &Google Search - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmcache.html
O8 - Extra context menu item: Pages similaires - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsimilar.html
O8 - Extra context menu item: Pages liées - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmbacklinks.html
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
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)
O12 - Plugin for .wav: C:\PROGRA~1\INTERN~1\PLUGINS\npqtplugin.dll
O12 - Plugin for .mid: C:\PROGRA~1\INTERN~1\PLUGINS\npqtplugin2.dll
O12 - Plugin for .MPG: C:\PROGRA~1\INTERN~1\PLUGINS\npqtplugin3.dll
O16 - DPF: {92ABACFE-EF6E-42C7-A824-D50A914B5B70} (MastaCash Loader Class) - http://dx.mastacash.com/loader.cab
O16 - DPF: {DDF44FD9-749F-4761-89BB-E8A59339E459} - http://akamai.downloadv3.com/binaries/LiveService/LiveService_9_FR.cab
O16 - DPF: {7DBFDA8E-D33B-11D4-9269-00600868E56E} (WWWInstall Class) - http://www.alloticket.com/MicroPaiement/kit/WebInstall.dll
O16 - DPF: {D1B80EBF-1A26-4FEC-B0B9-DCB934C6507E} (Loader Class) - http://htmldialer.parisvoyeur.com/CABSPOLY/cd/1,0,3,8/fr/AccesMembre.cab
O16 - DPF: {83252F41-71B7-492E-8B2E-A68AA3E301E7} (Ulysse Class) - http://htmldialer.parisvoyeur.com/CABSPOLY/cd/1,0,3,8/fr/Penelope.cab
O16 - DPF: {869518C3-FBA5-4D75-8A14-7047437E9498} (Jacques Class) - http://htmldialer.parisvoyeur.com/CABSPOLY/cd/1,0,3,8/fr/Bernadette.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
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as5free/asinst.cab
O16 - DPF: {A1A961DA-2BA6-4032-859E-01AC35357163} (One2One Viewer) - http://www.one2one.com/static/class/one2one.cab
O16 - DPF: {01347765-1965-426B-91A4-AA6BB342B9A3} (InstallerObj Class) - http://www.1-click.com/common/files/installer-hidden-test.cab
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://ak.imgfarm.com/images/nocache/funwebproducts/ei-2/SmileyCentralFWBInitialSetup1.0.0.8-2.cab
O16 - DPF: Interface Chat Wanadoo - http://chat9.x-echo.com/version6/Applet/wchatsign.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab31267.cab
O16 - DPF: Yahoo! Pool 2 - http://download.games.yahoo.com/games/clients/y/pote_x.cab
O16 - DPF: {CE69F98F-2AF3-4306-BAC6-A79070EDA1B4} (Zylom Loader Object) - http://eu.download.games.yahoo.com/zylom/activex/zylomloader.cab
O16 - DPF: Yahoo! Checkers - http://download.games.yahoo.com/games/clients/y/kt4_x.cab
O16 - DPF: Interface Chat Voila - http://chat7.x-echo.com/version5/Applet/vchatsign.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/02e3ac4b221b2f934416/netzip/RdxIE601_fr.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://www.bitdefender.fr/scan8/oscan8.cab
O17 - HKLM\System\CCS\Services\VxD\MSTCP: Domain = WANADOO
O17 - HKLM\System\CCS\Services\VxD\MSTCP: NameServer = 193.252.19.3,193.252.19.4