title: MVC3 Custom MembershipProvider & Active Directory
body: <p>I have an MVC3 application that has a custom membership provider and user/roles that are stored in the database.  Users are created manually in the application as required and appropriate roles assigned.</p>
  
  <p>I'd like to now extend the application to provide an option of using Active Directory, though because the application has several custom fields + tables with FK lookups on the user, I am thinking that I will still have to have a custom version of the default active directory membership provider.  </p>
  
  <p>Has anybody on SF done something similar that they can share with me? 
  Thanks</p>