Well, ComboFix did a great job, as usual.
If you right-click the Avast! a-ball, you can go into "Program Settings" and uncheck the box next to "Enable skins for simple user interface." If skins are preventing you from starting Avast! that should let it start.
From the Tools menu, select "Schedule boot-time scan" and let it scan everything. I personally suggest telling it that it's OK to move everything to the chest including stuff in the Windows folder (advanced options.)
From the looks of your ComboFix log, ComboFix did most of the work already, and Avast! just needs to finish the leftovers.
One warning: your computer is a bit of a mess. You'll probably need to reinstall Internet Explorer 8, as we may have broken it by moving a suspicious file out of its reach. You'll also want to make a fresh System Restore point and then run Eusing Free Registry Cleaner to clean up the mess of stuff in the registry that used to point to Malware but now points nowhere and makes error messages. You might also need to uninstall and reinstall the .NET framework.
But your computer should otherwise behave pretty normally now, from the looks of the ComboFix log. The running processes look good.
Anybody notice anything I didn't? I'm not quite at leisure to study it just yet......
