http://blogs.msdn.com/b/plankytronixx/archive/2011/06/14/click-by-click-video-using-on-premise-active-directory-to-authenticate-to-a-windows-azure-app.aspxThis video is a click-by-click, line-by-line screen-cam of how to authenticate using an on-premise Active Directory with a Windows Azure application. It uses Active Directory Federation Services V2.0 (ADFS 2.0) and Windows Azure’s App Fab Access Controlen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)