If when trying to run HijackThis, you receive an 'Unexpected error' that says "A required .DLL file, msvbvm60.dll, was not found", please download the file from here
. Then extract (unzip) the file to your C:\Windows\system32 folder, overwriting any existing copy, and restart your computer.
If that does not help, then do this:
Go to Start > Run and type or copy/paste: regsvr32 msvbvm60.dll
press Ok and restart your computer.
If you still have problems, then you can download the full package from the link buddy215 provided and then try running VundoFix, followed by SuperAntispyware in safe mode.