virus/kan ikke downloade antispyware

jeg tror jeg har fået noget "snavs" på min pc, jeg kan ikke downloade antispyware, der popper også heletiden en dialogboks op med at min pc er inficeret, men jeg kan ikke finde noget med avg virusscanner.
Håber der er nogen der kan hjælpe mig vedlægger en hjt log.

Logfile of HijackThis v1.99.1
Scan saved at 17:03:48, on 27-03-2008
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmer\Logitech\iTouch\iTouch.exe
C:\WINDOWS\k9\DAO\svchost.exe
C:\WINDOWS\system32\RunDll32.exe
C:\WINDOWS\system32\sistray.EXE
C:\Programmer\Logitech\MouseWare\system\em_exec.exe
C:\WINDOWS\system32\keyhook.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Programmer\Java\jre1.6.0_05\bin\jusched.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\Programmer\Microsoft Office\Office12\GrooveMonitor.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmer\Messenger\msmsgs.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\wuauclt.exe
c:\programmer\internet explorer\iexplore.exe
C:\Documents and Settings\kim\Dokumenter\hjt\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.defaulthomepage.info
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Hyperlinks
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Programmer\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [Logitech Utility] Logi_MwX.Exe
O4 - HKLM\..\Run: [Windows LSASS Service] C:\WINDOWS\k9\DAO\svchost.exe
O4 - HKLM\..\Run: [SiSUSBRG] C:\WINDOWS\SiSUSBrg.exe
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [SiS Tray] C:\WINDOWS\system32\sistray.EXE
O4 - HKLM\..\Run: [SiS Windows KeyHook] C:\WINDOWS\system32\keyhook.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmer\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Programmer\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmer\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [braviax] C:\WINDOWS\system32\braviax.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmer\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [braviax] C:\WINDOWS\system32\braviax.exe
O4 - Startup: Screen Clipper and Launcher til OneNote 2007.lnk = C:\Programmer\Microsoft Office\Office12\ONENOTEM.EXE
O8 - Extra context menu item: E&ksporter til Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmer\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmer\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Send til OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end til OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmer\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmer\Messenger\msmsgs.exe
O16 - DPF: {7E980B9B-8AE5-466A-B6D6-DA8CF814E78A} (MJLauncherCtrl Class) - http://sympatico.zone.msn.com/bingame/chnz/default/mjolauncher.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) - http://cdn2.zone.msn.com/binFramework/v10/ZIntro.cab56649.cab
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.DLL
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Programmer\Fælles filer\Microsoft Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\FLLESF~1\MICROS~1\OFFICE12\MSOXMLMF.DLL
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe