http://developers.de/blogs/damir_dobric/archive/2008/01/08/iis7-security-modules.aspxWhile configuring the security of the web application in IIS7, you may notice that required security mechanism does not exist at all in the Authentication settings of the application. For example you want to enable Windows Authentication, but only AnonymousenCommunityServer 2008 SP1 (Build: 30619.63)