RDP RADIUS authentication(repost)(repost)

I need a solution for the above that can work with Windows NT, Windows 2003 and Windows 2008. If the solution is a method, you will need to provide the implementation method - Windows API to call, and a demo script or program that proves that it can work. If you can provide the solution in Delphi, that will be preferred. You'll also need to provide an installation method - using dos script, code, etc to deploy this solution. You may feel free to clarify the requirement, but please do not ask me questions like - 1. What is RDP? 2. What is RADIUS?