Problème avec MSN messenger

Salut tout le monde !
Je marche sous Windows 2000
Mon problème c'est que quand je suis sur MSN, ma connexion à MSN coupe toutes les 20 min précisément ! Je ne sais pas comment faire pour arrêter le problème, si vous pouviez m'aider.

Voici mon logfile HijackThis, si ça peut servir...

Logfile of HijackThis v1.99.1
Scan saved at 19:03:35, on 02/09/2005
Platform: Windows ME (Win9x 4.90.3000)
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\mmtask.tsk
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\SYSTEM\SSDPSRV.EXE
C:\PROGRAM FILES\NETROPA\ONE-TOUCH MULTIMEDIA KEYBOARD\MMKEYBD.EXE
C:\PROGRAM FILES\ALWIL SOFTWARE\AVAST4\ASHSERV.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\WINDOWS\EXPLORER.EXE
C:\PROGRAM FILES\NETROPA\ONE-TOUCH MULTIMEDIA KEYBOARD\KEYBDMGR.EXE
C:\PROGRAM FILES\NETROPA\ONSCREEN DISPLAY\OSD.EXE
C:\PROGRAM FILES\NETROPA\ONE-TOUCH MULTIMEDIA KEYBOARD\MMUSBKB2.EXE
C:\WINDOWS\SYSTEM\RESTORE\STMGR.EXE
C:\WINDOWS\SYSTEM\RPCSS.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SYSTEM\HPSYSDRV.EXE
C:\WINDOWS\MCBIN\AV\RT\MGAVRTCL.EXE
C:\PROGRAM FILES\ADAPTEC\DIRECTCD\DIRECTCD.EXE
C:\PROGRAM FILES\WANADOO\CNXMON.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAM FILES\WANADOO\TASKBARICON.EXE
C:\PROGRAM FILES\ALWIL SOFTWARE\AVAST4\ASHWEBSV.EXE
C:\WINDOWS\LOADQM.EXE
C:\WINDOWS\SYSTEM\LVCOMSX.EXE
C:\PROGRAM FILES\LOGITECH\VIDEO\LOGITRAY.EXE
C:\PROGRAM FILES\ALWIL SOFTWARE\AVAST4\ASHMAISV.EXE
C:\WINDOWS\RunDLL.exe
C:\PROGRAM FILES\SAGEM\SAGEM F@ST 800-840\DSLMON.EXE
C:\WINDOWS\MCBIN\AV\RT\MGAVRTE.EXE
C:\PROGRAM FILES\LOGITECH\VIDEO\FXSVR2.EXE
C:\PROGRAM FILES\MSN MESSENGER\MSNMSGR.EXE
C:\PROGRAM FILES\BACKWEB\BACKWEB\PROGRAM\BWDELAY.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\WANADOO\ESPACEWANADOO.EXE
C:\PROGRAM FILES\WANADOO\COMCOMP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\PROGRAM FILES\WANADOO\WATCH.EXE
C:\MES DOCUMENTS\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.wanadoo.fr/go/page_recherche/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.wanadoo.fr
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O3 - Toolbar: @msdxmLC.dll,-1@1036,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: Barre d'outils MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\PROGRAM FILES\MSN TOOLBAR\01.01.2607.0\FR\MSNTB.DLL
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: [HPScanPatch] C:\WINDOWS\SYSTEM\HPScanFix.exe
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [Delay] C:\WINDOWS\delayrun.exe
O4 - HKLM\..\Run: [mgavrtclexe] C:\WINDOWS\MCBin\AV\Rt\mgavrtcl.exe
O4 - HKLM\..\Run: [Adaptec DirectCD] C:\Program Files\ADAPTEC\DIRECTCD\DIRECTCD.EXE
O4 - HKLM\..\Run: [autoclk] autoclk.exe
O4 - HKLM\..\Run: [adiras] adiras.exe
O4 - HKLM\..\Run: [WooCnxMon] C:\PROGRA~1\WANADOO\CnxMon.exe
O4 - HKLM\..\Run: [WOOWATCH] C:\PROGRA~1\WANADOO\Watch.exe
O4 - HKLM\..\Run: [WOOTASKBARICON] C:\PROGRA~1\WANADOO\TaskbarIcon.exe
O4 - HKLM\..\Run: [avast! Web Scanner] C:\PROGRA~1\ALWILS~1\AVAST4\ASHWEBSV.EXE
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [LVCOMSX] C:\WINDOWS\SYSTEM\LVCOMSX.EXE
O4 - HKLM\..\Run: [LogitechVideoRepair] C:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [LogitechVideoTray] C:\Program Files\Logitech\Video\LogiTray.exe
O4 - HKLM\..\Run: [ashMaiSv] C:\PROGRA~1\ALWILS~1\AVAST4\ashmaisv.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: [mgavrtclexe] C:\WINDOWS\MCBin\AV\Rt\mgavrte.exe
O4 - HKLM\..\RunServices: [Keyboard Manager] C:\Program Files\Netropa\One-touch Multimedia Keyboard\MMKeybd.exe
O4 - HKLM\..\RunServices: [avast!] C:\Program Files\Alwil Software\Avast4\ashServ.exe
O4 - HKLM\..\RunServices: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKCU\..\Run: [MoneyAgent] "C:\Program Files\Microsoft Money\System\Money Express.exe"
O4 - HKCU\..\Run: [Taskbar Display Controls] RunDLL deskcp16.dll,QUICKRES_RUNDLLENTRY
O4 - Startup: DSLMON.lnk = C:\Program Files\SAGEM\SAGEM F@st 800-840\dslmon.exe
O4 - Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
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: Wanadoo - {1462651F-F4BA-4C76-A001-C4284D0FE16E} - http://www.wanadoo.fr (file missing) (HKCU)
O14 - IERESET.INF: START_PAGE_URL=http://hp.my.yahoo.com
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/104c6fc082fed2a51a05/netzip/RdxIE601_fr.cab