Probléme de RVHOST.exe

Bonjour,
j'ai le même probléme de moon et voilà la copie du bloc notes:
Logfile of HijackThis v1.99.1
Scan saved at 09:38:42, on 13/01/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\Explorer.exe
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Broadcom\ASFIPMon\AsfIpMon.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\MSN Messenger\usnsvc.exe
C:\Documents and Settings\Administrateur\Bureau\Gestion Stock 11 01 09.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\Rar$EX00.547\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.files-ftp.com/~unicorni/phpBB2/index.php
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: SearchSettings Class - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - C:\Program Files\Search Settings\kb127\SearchSettings.dll
F2 - REG:system.ini: Shell=Explorer.exe RVHOST.exe
O2 - BHO: Microsoft - {37566535-A634-5164-5467-5A56453BD4FA} - C:\WINDOWS\freesoft_adw.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll (file missing)
O2 - BHO: DealioBHO Class - {6A87B991-A31F-4130-AE72-6D0C294BF082} - C:\Program Files\Dealio\kb127\Dealio.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: SearchSettings Class - {E312764E-7706-43F1-8DAB-FCDD2B1E416D} - C:\Program Files\Search Settings\kb127\SearchSettings.dll
O3 - Toolbar: Dealio - {E67C74F4-A00A-4F2C-9FEC-FD9DC004A67F} - C:\Program Files\Dealio\kb127\Dealio.dll
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [au] C:\Program Files\Dealio\DealioAU.exe
O4 - HKLM\..\Run: [SearchSettings] C:\Program Files\Search Settings\SearchSettings.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O7 - HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System, DisableRegedit=1
O8 - Extra context menu item: Compare Prices with &Dealio - C:\Documents and Settings\Administrateur\Application Data\Dealio\kb127\res\DealioSearch.html
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {53F6FCCD-9E22-4d71-86EA-6E43136192AB} - (no file)
O9 - Extra button: (no name) - {925DAB62-F9AC-4221-806A-057BFB1014AA} - (no file)
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Dealio - {E908B145-C847-4e85-B315-07E2E70DECF8} - C:\Program Files\Dealio\kb127\Dealio.dll
O9 - Extra 'Tools' menuitem: Dealio - {E908B145-C847-4e85-B315-07E2E70DECF8} - C:\Program Files\Dealio\kb127\Dealio.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O14 - IERESET.INF: START_PAGE_URL=http://www.files-ftp.com/~unicorni/phpBB2/index.php
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx2.hotmail.com/mail/w3/resources/MSNPUpld.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{E936569D-B362-47A3-A369-84A495DE55A5}: NameServer = 85.255.116.139,85.255.112.7
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: NameServer = 85.255.116.139,85.255.112.7
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: NameServer = 85.255.116.139,85.255.112.7
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: NameServer = 85.255.116.139,85.255.112.7
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O23 - Service: Broadcom ASF IP Monitor (ASFIPmon) - Unknown owner - C:\Program Files\Broadcom\ASFIPMon\AsfIpMon.exe" -service (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\PC Connectivity Solution\ServiceLayer.exe

aide moi svp.