SlimDX Redistributable (March 2009)

SlimDX is a free open source framework that enables developers to easily build DirectX applications using .NET technologies such as C#, VB.NET, and IronPython.

It is designed to be an efficient, simple, and lean wrapper that fully encompasses all of Microsoft's gaming and multimedia technologies and exposes them to managed code. All of the code is under the MIT/X11 license, and all content is under the Creative Commons Attribution-Share Alike license.