Mike Nash is doing his monthly Security Webcast tomorrow (April 20th) at 8:30 AM (PST). This is another great vector into what's going on with security at Microsoft. Note from the blurb the mention of Windows XP SP2. (This is currently the most popular topic on the Security Developer Center.) You can register for the Webcast here:
Microsoft Executive Circle Webcast: Monthly Update from Microsoft's VP for Security
Join Mike Nash, Microsoft's senior executive in charge of security, for his monthly security update. Mike will provide the latest details on Microsoft's security enhancements – focusing on the key areas of Isolation and Resiliency, Updating, Quality and Authentication and Control. Log in for the interactive dialog, plus get a live demo of Windows XP P2.