NDemo is an open source framework for creating automated testable demonstrations in .NET.  With NDemo, .NET developers can create automated demos in much the same way they create NUnit tests.  With these automated demos, screenshots and walk-thru's can be generated from the real working application.

At the current moment, NDemo is still in the early stages of development.  Although this project uses JDemo as an influence, the framework is being built from the ground up in C#.  This project came in part from my frustration with documentation and always having to keep screenshots up to date.  Why not have a tool that generates them for you, and as a side effect, ends up providing cursory level tests on the GUI.