Always good to go back to basics, where ever I go I have the need to generate a security environment which is based on the MembershipProvider.

There are lots of examples out on the Internet so it makes it hard to find what you are after, everytime I end up back at the same website, as it take you through the basic Membership and then goes in to it in depth, such as switching users if you are an administrator.

Examining ASP.NET 2.0’s Membership, Roles, and Profile

Manage Custom Security Credentials the Smart (Client) Way

Not every application is a Web Based application, people still create WinForm application, so if you are using a WinForm application it’s worth looking at this article

Using the ASP.NET membership provider in a Windows forms application