J'ai suivis des conseils du site et voudrai c

Bonjour,
je vous remercie d'avance d'avoir la patience de lire ce message.
probleme avec mon PC ou tous mes dossiers sont devenus des dossiers.EXE
j'ai alors vus des conseils sur le net et j'ai decidé d'essayer.
mes excuses si toute fois insuffisant, reste à votre écoute

Logfile of HijackThis v1.99.1
Scan saved at 15:54:03, on 20/02/2008
Platform: Windows 2000 SP3 (WinNT 5.00.2195)
MSIE: Internet Explorer v5.00 SP3 (5.00.2920.0000)

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\spoolsv.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\regsvc.exe
C:\WINDOWS\system32\MSTask.exe
C:\WINDOWS\system32\stisvc.exe
C:\WINDOWS\System32\WBEM\WinMgmt.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\dllChache\Empty.jpg
C:\WINDOWS\System32\dllChache\Blank.doc
C:\WINDOWS\System32\dllChache\Zero.txt
C:\WINDOWS\System32\dllChache\Hole.zip
C:\WINDOWS\System32\dllChache\Unoccupied.reg
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
C:\WINDOWS\System32\internat.exe
C:\Documents and Settings\TOPAN\Bureau\HijackThis.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Ati\Atidesk\atisched.exe
C:\Program Files\Grisoft\AVG Free\avgwb.dat

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://edit.europe.yahoo.com/config/mail?.intl=fr
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\WINDOWS\SYSTEM\blank.htm
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,AutoConfigURL = 192.168.0.252
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.168.0.252:8080
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
R3 - URLSearchHook: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\userinit.exe, "C:\WINDOWS\System32\M5VBVM60.EXE StartUp"
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 5.0\READER\ACTIVEX\ACROIEHELPER.OCX
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Yahoo! Toolbar avec bloqueur de fenêtres pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [Blank AntiViri] C:\AUT0EXEC.BAT StartUp
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [Mswinword] C:\Windows\Mme MEDA.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [Secure64] C:\WINDOWS\System32\dllcache\Regedit32.com StartUp
O4 - HKCU\..\Run: [Secure32] C:\WINDOWS\System32\dllcache\Shell32.com StartUp
O4 - HKCU\..\Run: [HijackThis startup scan] C:\Documents and Settings\TOPAN\Bureau\HijackThis.exe /startupscan
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - Global Startup: ATISched.lnk = C:\ATI\ATIDESK\atisched.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O9 - Extra button: Browser Adjust - {44627E97-789B-40d4-B5C2-58BD171129A1} - C:\PROGRAM FILES\AGNITUM\OUTPOST FIREWALL\PLUGINS\BROWSERBAR\IE_BAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O12 - Plugin for .spop: C:\PROGRA~1\INTERN~1\Plugins\NPDocBox.dll
O14 - IERESET.INF: START_PAGE_URL=https://www.msn.com/fr-fr/
O14 - IERESET.INF: MS_START_PAGE_URL=https://www.msn.com/fr-fr/
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique (dmadmin) - VERITAS Software Corp. - C:\WINDOWS\System32\dmadmin.exe