This system was extremely infected (including the TCP/IP stack) when I got it. So, yes, there were several pieces of software used to clean it. I would have reinstalled the OS, but the original install disks have gotten lost.
- Ran the Microsoft FixIt and got the follow error:
"Unable to find a version of the runtime to run this application"
- This system was also infected with 'Best Antivirus Protection'. Once I removed the TrendMicro AV that was installed, I was able to get out the Best AV. Had to rebuild the WBEM repository after, as the security center was still reporting Best AV as still active. Once it was clean, installed Microsoft Security Essentials.