I see that you were successful in getting RSIT to run. Now that your log is posted here: http://www.bleepingcomputer.com/forums/t/217500/vista-crashes-when-performing-virus-scansonline-virus-scans/ you should NOT make further changes to your computer
(install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.
From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.
To avoid confusion, I am closing this topic. Good luck with your log.