Windows OneCare Live Preview by BentUser
To respond to the somewhat alarmingly real threat of spyware, malware, and to a lesser extent viruses on the Windows platform, Microsoft used its recently-acquired security technology combined with its own in-house work to build Windows OneCare Live (codenamed Atlanta).
BentUser.com published a preview of Windows OneCare Live - have a look at http://www.bentuser.com/article.aspx?ID=312