title: ASP.NET multiple federated identity providers
body: <p>I am developing an ASP.NET application. I have successfully added an STS reference to a stand-alone AD FS 2.0 server, so I can authenticate against a 3rd party's active directory. The problem is that I have more than one client who wishes to be able to authenticate against their own active directory. It seems that I can only add one STS reference to a project. How do I add multiple identity providers to an ASP.NET application and then programatically choose which provider I want to redirect the browser to for authentication? Thanks!</p>
  
  <p>Ralphie</p>