I just downloaded and installed the Microsoft Anti-Spyware Beta1
http://www.microsoft.com/athome/security/spyware/software/howto/download.mspx
Worked really well. It would be great is some other members tried it and we can see how well it works.
On my system it detected 5 registry entries related to spyware that I thought was removed from my system.
Post your experience with this product.
KUB