We're developing a .net application, and are about to add authentication to it. We'd like to use Active Directory for this, but are aiming to make this as simple as possible for the test-server used for development.
What does it take to get Active Directory up and running? Can I run it locally on my Win7 installation? I've heard about ADAM and AD LDS, but don't really know the details besides knowing they are lightweight implementations.
So; what's the easiest way to a working Active Directory for testing?