Enorme problème avec l'image: "wowfx.dll"

Bonjour,
J'ai fait une petite analyse hijackthis et ce serait aimable que quelqu'un me vienne en aide.
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:58:05, on 04/02/2011
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Fichiers communs\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\WINDOWS\ATKKBService.exe
C:\WINDOWS\system32\CTsvcCDA.EXE
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Fichiers communs\LogiShrd\LVMVFM\LVPrcSrv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\PnkBstrA.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\dllhost.exe
C:\PROGRA~1\ALWILS~1\Avast5\avastUI.exe
C:\windows\ehome\ehtray.exe
C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe
C:\program files\creative\sbaudigy\surround mixer\ctsysvol.exe
C:\program files\ati technologies\ati.ace\cli.exe
C:\program files\uliraid\uliraid.exe
C:\program files\bluewin\wlan assistant\mccitrayapp.exe
C:\program files\fichiers communs\logishrd\lcommgr\communications_helper.exe
C:\program files\logitech\quickcam\quickcam.exe
C:\Program Files\Fichiers communs\Java\Java Update\jusched.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\eHome\ehmsas.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Fichiers communs\Logishrd\LQCVFX\COCIManager.exe
C:\Program Files\Bluewin\Quick Help\bin\mpbtn.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\program files\ati technologies\ati.ace\cli.exe
C:\program files\ati technologies\ati.ace\cli.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.bluewin.ch/index_f.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = www.generation-nt.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: (no name) - {0D39A900-0F3A-4C29-A254-3E65244FDC34} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {4AD44D3E-7316-4251-B754-9B10EC96AF92} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.1.1119.1736\swg.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: (no name) - {BA52B914-B692-46c4-B683-905236F6F655} - (no file)
O4 - HKLM\..\Run: [avast5] C:\PROGRA~1\ALWILS~1\Avast5\avastUI.exe /nogui
O4 - HKLM\..\Run: [ehTray] c:\windows\ehome\ehtray.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Fichiers communs\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [CTSysVol] c:\program files\creative\sbaudigy\surround mixer\ctsysvol.exe /r
O4 - HKLM\..\Run: [P17Helper] rundll32 p17.dll,p17helper
O4 - HKLM\..\Run: [UpdReg] c:\windows\updreg.exe
O4 - HKLM\..\Run: [ATICCC] "c:\program files\ati technologies\ati.ace\cli.exe" runtime -delay
O4 - HKLM\..\Run: [ULiRaid] c:\program files\uliraid\uliraid.exe
O4 - HKLM\..\Run: [Motive SmartBridge] c:\program files\uliraid\uliraid.exe
O4 - HKLM\..\Run: [yrgpczgf] regsvr32 /u "c:\documents and settings\all users\application data\yrgpczgf.dll"
O4 - HKLM\..\Run: [BLUEWIN_McciTrayApp] c:\program files\bluewin\wlan assistant\mccitrayapp.exe
O4 - HKLM\..\Run: [LogitechCommunicationsManager] "c:\program files\fichiers communs\logishrd\lcommgr\communications_helper.exe"
O4 - HKLM\..\Run: [LogitechQuickCamRibbon] "c:\program files\logitech\quickcam\quickcam.exe" /hide
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Fichiers communs\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "c:\program files\adobe\reader 9.0\reader\reader_sl.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [AlcoholAutomount] "c:\program files\alcohol soft\alcohol 120\axcmd.exe" /automount
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Global Startup: Quick Help.lnk = C:\Program Files\Bluewin\Quick Help\bin\matcli.exe
O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O10 - Unknown file in Winsock LSP: c:\windows\system32\nwprovau.dll
O14 - IERESET.INF: START_PAGE_URL=www.generation-nt.com
O16 - DPF: {20A60F0D-9AFA-4515-A0FD-83BD84642501} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab56986.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/FR-CH/a-UNO1/GAME_UNO1.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {F5A7706B-B9C0-4C89-A715-7A0C6B05DD48} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab56986.cab
O20 - AppInit_DLLs: C:\WINDOWS\system32\wowfx.dll
O20 - Winlogon Notify: khffdbc - khffdbc.dll (file missing)
O20 - Winlogon Notify: opnlmji - opnlmji.dll (file missing)
O20 - Winlogon Notify: qgbpvexr - qgbpvexr.dll (file missing)
O20 - Winlogon Notify: vtutuvt - vtutuvt.dll (file missing)
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Fichiers communs\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATK Keyboard Service (ATKKeyboardService) - ASUSTeK COMPUTER INC. - C:\WINDOWS\ATKKBService.exe
O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Mail Scanner - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Web Scanner - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.EXE
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Service de l'iPod (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - C:\Program Files\Fichiers communs\LogiShrd\LVMVFM\LVPrcSrv.exe
O23 - Service: LVSrvLauncher - Labtec Inc. - C:\Program Files\Fichiers communs\LogiShrd\SrvLnch\SrvLnch.exe
O23 - Service: MSSQL$SONY_MEDIAMGR - Unknown owner - C:\Program Files\Sony\Shared Plug-Ins\Media Manager\MSSQL$SONY_MEDIAMGR\Binn\sqlservr.exe (file missing)
O23 - Service: PnkBstrA - Unknown owner - C:\WINDOWS\system32\PnkBstrA.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - NetGroup - Politecnico di Torino - C:\Program Files\WinPcap\rpcapd.exe
O23 - Service: ServiceLayer - Unknown owner - C:\Program Files\PC Connectivity Solution\ServiceLayer.exe (file missing)
O23 - Service: SQLAgent$SONY_MEDIAMGR - Unknown owner - C:\Program Files\Sony\Shared Plug-Ins\Media Manager\MSSQL$SONY_MEDIAMGR\Binn\sqlagent.EXE (file missing)
O23 - Service: StarWind AE Service (StarWindServiceAE) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe
O23 - Service: SecuROM User Access Service (V7) (UserAccess7) - Unknown owner - C:\WINDOWS\system32\UAService7.exe (file missing)
O24 - Desktop Component 0: (no name) - About:Home

Merci aux personnes patiente pour leur attention.