Implementing OpenID in ASP.net “Properly” - Membership or Authentication Provider?

Question

There are several ways to use OpenID on ASP.net sites, but none of them seem to use the existing mechanism of Membership and Authentication Providers.

I wonder what

Answer 1

The ASP.NET MVC sample included with DotNetOpenId uses FormsAuthentication to log the user in after they have been authenticated by OpenID. It does not, as far as I can tell, do any integration with the Membership system.