Microsoft has released the 1st Beta of it's Anti-Spyware application, this is the fruits of it's recent purchase of Giant Anti-Spyware, a program which was well respected but was not free, for now the Microsoft version is free and will be updated.

I've installed this myself and can vouch for what a good job it does, though if your'e using Firefox as you should be *cough*, then you won't have any spyware, will you?

You can grab the 6.3mb file at the Microsoft anti-spyware page.