Microsoft Anti-Virus?

While browsing I came across Windows Live Safety Center (yes I know centre is spelt wrong, American of course!).  This is in beta and claims the following:

  • Check for and remove viruses
  • Learn about threats
  • Improve your PC's performance
  • Get rid of junk on your hard disk

I would be interested in hearing from someone who has tried

this, I don’t really trust Microsoft to keep my computer virus free (I’ll stick

with Norton Anti-Virus).  I do however

use the Microsoft

Anti-Spyware Beta application which I cannot fault, it works much better

than any other Anti-Spyware/Malware programs which I have used.