I'm working on a P2P application, and I need to get it to communicate through NAT Routers / Firewalls using UPnP. However, it doesn't seem that the .NET Framework includes support for UPnP.

Is there a UPnP Library for .NET? C# or VB.NET?

UPDATE: I have since found the NATUPnP 1.0 Type Library (NATUPNP.DLL) COM Component that is part of Windows (since Windows XP) that allows you to easily setup/maintain Port Forwarding using UPnP.

I wrote an article with code samples here:
[.NET Framework: Communicate through NAT Router via UPnP (Universal Plug and Play)](http://pietschsoft.com/post.aspx?id=31200e6d-4b61-48b8-a9cb-91e3dd8e97f3)