Looks like Microsoft has made their first release from their recent acquisition of
Giant Company Software. They have made
available a beta release of their upcoming Windows AntiSpyware software which it seems is going to be free when it is released.
If you haven't run a anti-spyware program lately, I'd highly recommend it (this one or any other of your choice). I thought I was totally clean because I am very tight on what gets installed on my computer, yet I found the ELogList for Windows NT/2K (Trojan) on my XP Laptop!
You can download it HERE