Ma connexion internet RAME

Bonjour a ts,

Depuis quelques temps, je trouve que ma connexion ADSL rame.
A ce jour, compte tenu de mes compétences en informatique, je n'ai toujours pas trouvé la problème.
Je suppose fortement que mon PC est infecté.

Si quelqu'un peut m'aider ? Merci par avance a tous.

Pour info, j'utilise AD-adware, Spybot, AVG Antivirus, Sygate Personal Fireall

et voici mon scan :

Logfile of HijackThis v1.99.1
Scan saved at 17:30:46, on 16/04/05
Platform: Windows 98 Gold (Win9x 4.10.1998)
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\MPREXE.EXE
C:\WINDOWS\SYSTEM\KB891711\KB891711.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\STARTER.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\WINDOWS\SYSTEM\PSTORES.EXE
C:\PROGRAM FILES\WINZIP\WINZIP32.EXE
C:\WINDOWS\TEMP\HIJACKTHIS.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.fr/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Wanadoo
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Search Class - {08C06D61-F1F3-4799-86F8-BE1A89362C85} - (no file)
O3 - Toolbar: (no name) - {62999427-33FC-4baf-9C9C-BCE6BD127F08} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [EnsoniqMixer] starter.exe
O4 - HKLM\..\Run: [AVGCtrl] C:\PROGRAM FILES\AVPERSONAL\AVGCTRL.EXE /min
O4 - HKLM\..\RunServices: [KB891711] C:\WINDOWS\SYSTEM\KB891711\KB891711.EXE
O8 - Extra context menu item: &Download with &DAP - C:\PROGRA~1\DAP\dapextie.htm
O8 - Extra context menu item: Download &all with DAP - C:\PROGRA~1\DAP\dapextie2.htm
O11 - Options group: [Accessibilité] Accessibilité
O16 - DPF: {1D6711C8-7154-40BB-8380-3DEA45B69CBF} (Web P2P Installer) -
O16 - DPF: {469C7080-8EC8-43A6-AD97-45848113743C} - http://akamai.downloadv3.com/binaries/IA/nethv32_FR.cab
O16 - DPF: {50AD557E-3426-41FD-AFDD-2AF39BB1C387} - http://akamai.downloadv3.com/binaries/LiveService/LiveService_5_FR.cab
O16 - DPF: {09C21411-B9A2-4DE6-8416-4E3B58577BE0} (France Telecom MDM ActiveX Control) - http://minitelweb.minitel.com/imin_data/ocx/MDM.cab
O16 - DPF: {42E1F024-ECC3-456F-B98A-4CE5ACDBF25C} (ActiveFormX Contrôle) - http://selfcare.cegetel.net/templates/static/ocx/AFAutoConfig.ocx
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {2A32B14F-4D29-4EA3-AC54-E9B19F436CE7} (Scanner Class) - http://www.windowsecurity.com/trojanscan/TDECntrl.CAB
O16 - DPF: {0A5FD7C5-A45C-49FC-ADB5-9952547D5715} - http://www.creative.com/su/ocx/15009/CTSUEng.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} - http://www.creative.com/su/ocx/15010/CTPID.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=36467&clcid=0x409
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} - http://www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} - http://www.inoculer.com/antivirus/Msie/bitdefender.cab