Download the http:https://visualstudiogallery.msdn.microsoft.com/e21bf653-dfe1-4d81-b3d3-795cb104066e
and follow http:https://msdn.microsoft.com/en-us/library/gg185938.aspx to get ACS running in your application. 
! Set "Webfarm ready cookies to true", when you deploy to Windows Azure websites.