I have an ASP.NET web application \"K\" that has its own authentication and authorization built on SimpleMembershipProvider.
Now I want to set up a web site that has ap
It sounds like you need to modify the authentication method of your "K" application. Then, you could build a module that takes care of the behaviors based on whether the user is logged in and is in a certain role.
Once you log into DNN and check the roles, your user needs to be authenticated to the "K" website.
We do something similar, but it required that our "internal" site would accept a token as proof of who the user was and they were authenticated.
Here is an example of what we do: