If you read Site Pro News (or if you don't), a recent article suggested four types of Spyware protection - anti-virus, Spybot S&D, Microsoft Anti-Spyware and keeping them all updated. Now I don't know about you, but with Microsoft's track record, I'm not crazy about installing any additional software from them, especially something that hasn't been out that long and is geared toward searching my computer and deleting stuff. Mind you, that's what anti-virus tools and Spybot do, but I trust those programs. Microsoft likes to think they own your computer just because their software is on it. "Me no like." If you have no affiliation with Microsoft and no bias toward their products, let me know if you have used Microsoft Anti-Spyware and what you think.