DGDK.NET is supported by the following products:
Microsoft Visual Studio .NET 2003
Microsoft Visual Studio .NET 2005
Microsoft Visual Basic.NET Express Edition
Microsoft Visual C#.NET Express Edition
SharpDevelop2 RC2
Microsoft .NET framework 1.1 and 2.0.
At the moment, only the ODE Physics plugin is available for DGDK.NET, DarkAI and DarkPhysX are not yet supported on DGDK and DGDK.NET.
DGDK (C++) version can be used by both Visual Studio 2003, 2005 and the Express version as well, so if you plan to purchase, make sure you choose the correct product - DGDK or DGDK.NET.
If you want to find out more about both products, go here for DGDK.NET:
http://darkgamesdk.thegamecreators.com/?f=dgdk_net
And here for the C++ version:
http://darkgamesdk.thegamecreators.com/
Paul.