We recently reported on how Microsoft have released a beta version of their new anti-spyware product. This product is based around the Giant Anti-Spyware product, a company that Microsoft bought out recently.
Anti-spyware/virus software from Microsoft. I would trust this as much as I do their firewall or their browser, which is to say: not at all. For goodness sake Internet Explorer is terrible with respect to blocking/preventing/alerting users to spy/malware. Why would I pile more crappy code onto my computer?
Aaron Fulkerson 