First of all, you seem to be running NOD32 and Norton Anti-Virus. Running two AV's at the same time is not a good idea, as they will fight over files like two dogs over a bone and cause problems.
Your main problem seems to be a PurityScan infection. It obviously has some some of self-protection going on. The easiest way to remove it would be to use the removal tool from the PurityScan website. I don't really trust uninstallers from adware companies, but as it's recommended on the Symantec site, I guess it's safe:
http://securityresponse.symantec.com/avcenter/venc/data/adware.purityscan.htmlhttp://www.purityscan.com/uninstall.htmlDo you have BitComet peer-to-peer network, because this can be a worm if it's not the peer-to-peer network.
C:\Programfiler\BitComet\BitComet.exe
The following entries have been highlighted as nasty, but you should decide if you want to keep them: they are IE start and search pages.
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = wmplayer.exe //ICWLaunch
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Koblinger
The following entries can be fixed: this is just a 'clean-up' process.
O2 - BHO: (no name) - {21CCD69C-1C0F-648B-73E6-6F834CAA999B} - (no file)
O2 - BHO: (no name) - {3EBB263E-BEAC-917C-D18A-CC69318A8E9E} - (no file)
O2 - BHO: (no name) - {6E1B3AB2-F777-8EF5-5B15-85ED9912D49F} - (no file)
O2 - BHO: (no name) - {8AC27E9A-E107-9FDC-7977-C3891F7A64C4} - (no file)
O2 - BHO: (no name) - {9E3AC264-5EFE-7322-DA9D-7D82BF1F28C3} - (no file)
O2 - BHO: (no name) - {FB761138-D1FE-A121-D39F-AD0FA4E64D92} - (no file)
This entry I do not believe is nasty and I do not recommend fixing it:
O2 - BHO: ST - {9394EDE7-C8B5-483E-8773-474BF36AF6E4} - C:\Programfiler\MSN Apps\ST\01.03.0000.1005\en-xu\stmain.dll
This entry seems to be adware: I recommend you do some research and decide if you want to keep it.
O23 - Service: dopewars server (dopewars-server) - Unknown owner - C:\Programfiler\dopewars-1.5.10\dopewars.exe
You need to check that you have the latest version of IE.
Please run the PurityScan uninstaller and then check with HijackThis! that the following entries have gone:
C:\Programfiler\W?nSxS\?ti2evxx.exe
O4 - HKCU\..\Run: [Bjf] C:\Documents and Settings\Administrator\Mine dokumenter\??stem32\?srss.exe
O4 - HKCU\..\Run: [Sivjrrb] C:\Programfiler\W?nSxS\?ti2evxx.exe