Hello,
this forum is for helping users with the Operating system Windows Home Server, so you are here on the wrong place to search for help for your specific problem.
This being said:
The program which you name
MS Antispyware 2009 is just another malware (also called scareware), which infected your PC and simulates infection to get you to buy their full product (and it is not from Microsoft).
But since Mc Afee found also a lot of malware, as you mentioned, I would recommend to save your data and reinstall your system, since a compromised system usually is hard to clean reliable even for experienced IT pros.
Best greetings from Germany
Olaf