http://blogs.technet.com/b/jhoward/archive/2005/07/01/406878.aspxAnother frequently asked question by many customers. A good answer can be found in the "Threats and Countermeasures: Security Settings in Windows Server 2003 and Windows XP" document which can be downloaded here . A little out of date (being based onen-GBTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)