Problème avec WININET.dll

Bonjour,
je suis en galère à cause de WININET.dll, je n'arive plus à accéder à msn car on m'indique que WININET.dll est introuvable.
J'ai fait un scan avec hi jack this et je vous poste le résultat:
Logfile of HijackThis v1.99.1
Scan saved at 22:39:42, on 07/04/2008
Platform: Unknown Windows (WinNT 6.00.1904)
MSIE: Internet Explorer v7.00 (7.00.6000.16609)

Running processes:
C:\Windows\PixArt\PAC207\Monitor.exe
C:\Program Files (x86)\HP\Digital Imaging\bin\hpqtra08.exe
C:\Program Files (x86)\Panasonic\LUMIXSimpleViewer\PhLeAutoRun.exe
C:\Program Files (x86)\Common Files\Microsoft Shared\Works Shared\wkcalrem.exe
C:\Program Files (x86)\Common Files\Microsoft Shared\Works Shared\WksCal.exe
C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe
C:\Program Files (x86)\HP\Digital Imaging\bin\hpqSTE08.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe
C:\Program Files (x86)\Panda Security\Panda Antivirus 2008\Apvxdwin.exe
C:\Users\Benjamin\Documents\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
F2 - REG:system.ini: UserInit=userinit.exe
O1 - Hosts: ::1 localhost
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files (x86)\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files (x86)\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O3 - Toolbar: Barre d'outils MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files (x86)\MSN Toolbar\01.01.2607.0\fr\msntb.dll
O4 - HKLM\..\Run: [Creative WebCam Tray] "C:\Program Files (x86)\Creative\Shared Files\CAMTRAY.EXE"
O4 - HKLM\..\Run: [oov6multiuser.exe] "C:\Program Files (x86)\OFFICE One6.0\program\oov6multiuser.exe"
O4 - HKLM\..\Run: [OFFICEOneNotesv6.exe] "C:\Program Files (x86)\OFFICE ONE6.0\OFFICE One Notes v6\OFFICEOneNotesv6.exe"
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files (x86)\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [APVXDWIN] "C:\Program Files (x86)\Panda Security\Panda Antivirus 2008\APVXDWIN.EXE" /s
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files (x86)\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files (x86)\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [CTRegRun] C:\Windows\CTRegRun.EXE
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [SM_IAN] "C:\Program Files (x86)\AdvancedCleaner Free\ian_monitor.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files (x86)\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files (x86)\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [Sony Ericsson PC Suite] "C:\Program Files (x86)\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe" /startoptions
O4 - HKCU\..\Run: [HijackThis startup scan] C:\Users\Benjamin\Documents\HijackThis.exe /startupscan
O4 - Global Startup: Adobe Gamma Loader.exe.lnk = C:\Program Files (x86)\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Program Files (x86)\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: LUMIX Simple Viewer.lnk = ?
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files (x86)\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Rappels du Calendrier Microsoft Works.lnk = ?
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files (x86)\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files (x86)\Java\jre1.6.0_05\bin\ssv.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nlaapi.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\napinsp.dll
O11 - Options group: [INTERNATIONAL] International*
O13 - Gopher Prefix:
O16 - DPF: {20A60F0D-9AFA-4515-A0FD-83BD84642501} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab56986.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) - http://messenger.zone.msn.com/binary/ZIntro.cab56649.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {CF40ACC5-E1BB-4AFF-AC72-04C2F616BCA7} (get_atlcom Class) - http://www.adobe.com/products/acrobat/nos/gp.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~2\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~2\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O20 - Winlogon Notify: avldr - C:\Windows\SYSTEM32\avldr.dll
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\Windows\SysWOW64\CTsvcCDA.EXE
O23 - Service: @dfsrres.dll,-101 (DFSR) - Unknown owner - C:\Windows\system32\DFSR.exe (file missing)
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: NBService - Nero AG - C:\Program Files (x86)\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: NMIndexingService - Nero AG - C:\Program Files (x86)\Common Files\Ahead\Lib\NMIndexingService.exe
O23 - Service: Panda Software Controller - Panda Software International - C:\Program Files (x86)\Panda Security\Panda Antivirus 2008\PsCtrls.exe
O23 - Service: Panda Process Protection Service (PavPrSrv) - Panda Software - C:\Program Files (x86)\Common Files\Panda Software\PavShld\pavprsrv.exe
O23 - Service: Panda anti-virus service (PAVSRV) - Panda Software International - C:\Program Files (x86)\Panda Security\Panda Antivirus 2008\pavsrvx86.exe
O23 - Service: PnkBstrA - Unknown owner - C:\Windows\system32\PnkBstrA.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Panda IManager Service (PSIMSVC) - Panda Software International - C:\Program Files (x86)\Panda Security\Panda Antivirus 2008\PsImSvc.exe
O23 - Service: Panda PSK service (PskSvcRetail) - Panda Software International - C:\Program Files (x86)\Panda Security\Panda Antivirus 2008\PskSvc.exe
O23 - Service: @%SystemRoot%\system32\qwave.dll,-1 (QWAVE) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\seclogon.dll,-7001 (seclogon) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: @%SystemRoot%\system32\SLsvc.exe,-101 (slsvc) - Unknown owner - C:\Windows\system32\SLsvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - %ProgramFiles%\Windows Media Player\wmpnetwk.exe (file missing)

J'espère que vous pourrrez m'aider.
Merci d'avance.