Agent Z2 + Dldr.WinSh.aC.05

C'est dramatique, j'ai au moins tout çà sur mon micro.
en plus, dès que j'essaie de me connecter su un antivirus sur internet, je suis jeté et IE ferme.
Je ne sais s'il y a moyen d'éradiquer ces cochonneries ou s'il faut que je reformate le disque dur.
Avec antivirus, Seach et destroy, je ne suis arrivé à rien : çà s'en va et çà rvient.
J'ai récupéré Hijack via une disquette : le scan donne ceci :
Logfile of HijackThis v1.97.7
Scan saved at 12:28:08, on 25/06/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\AVPersonal\AVGUARD.EXE
C:\Program Files\AVPersonal\AVWUPSRV.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
C:\Program Files\Browser Mouse\Browser Mouse\1.0\lwbwheel.exe
C:\Program Files\AVPersonal\AVGNT.EXE
C:\WINDOWS\System32\rundll32.exe
C:\WINDOWS\addvo.exe
C:\Program Files\Ulead Systems\Ulead Photo Express 4.0 SE\CalCheck.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkCalRem.exe
C:\WINDOWS\System32\msiexec.exe
A:\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://fr.yahoo.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = res://sshdt.dll/index.html#37049
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {33894CDF-39DC-A5B5-7657-E16A8CBB005D} - C:\WINDOWS\appdi.dll
O2 - BHO: (no name) - {E2095630-B050-B533-CBA8-E13F847AF0F1} - C:\WINDOWS\ipvl32.dll
O3 - Toolbar: (no name) - {ACB1E670-3217-45C4-A021-6B829A8A27CB} - (no file)
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [nForce Tray Options] "sstray.exe /r"
O4 - HKLM\..\Run: [MMTray] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
O4 - HKLM\..\Run: [LWBMOUSE] "C:\Program Files\Browser Mouse\Browser Mouse\1.0\lwbwheel.exe"
O4 - HKLM\..\Run: [AVSCHED32] "C:\Program Files\AVPersonal\AVSched32.EXE /min"
O4 - HKLM\..\Run: [AVGCtrl] C:\Program Files\AVPersonal\AVGNT.EXE /min
O4 - HKLM\..\Run: [AdslTaskBar] rundll32.exe stmctrl.dll,TaskBar
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [addvo.exe] C:\WINDOWS\addvo.exe
O4 - HKCU\..\Run: [LDM] \Program\BackWeb-8876480.exe
O4 - Global Startup: Contrôleur de calendrier Ulead.lnk = C:\Program Files\Ulead Systems\Ulead Photo Express 4.0 SE\CalCheck.exe
O4 - Global Startup: hpoddt01.exe.lnk = C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O4 - Global Startup: Rappels du Calendrier Microsoft Works.lnk = C:\Program Files\Fichiers communs\Microsoft Shared\Works Shared\WkCalRem.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O9 - Extra button: AIM (HKLM)
O9 - Extra button: Real.com (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Windows Messenger (HKLM)
O12 - Plugin for .mov: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin.dll
O16 - DPF: Interface Chat Voila - http://chat10.x-echo.com/version3/Applet/vchatsign.cab
O16 - DPF: {00B71CFB-6864-4346-A978-C0A14556272C} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab
O16 - DPF: {093F9CF8-0DE1-491C-95D5-5EC257BD4CA3} - http://akamai.downloadv3.com/binaries/IA/dtc32_FR_XP.cab
O16 - DPF: {166B1BCA-3F9C-11CF-8075-444553540000} (Shockwave ActiveX Control) - http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://207.188.7.150/15ad6d549b454114ba17/netzip/RdxIE601_fr.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: {80DD2229-B8E4-4C77-B72F-F22972D723EA} (AvxScanOnline Control) - http://www.inoculer.com/scan/Msie/bitdefender.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {F6BF0D00-0B2A-4A75-BF7B-F385591623AF} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/SolitaireShowdown.cab

Que faire ?
merci pour vos conseils éclairés !!!
;-))