Irrlicht Engine

When runing any program that is written in a .net language (C#, VB.Net) and uses Irrlicht i get the FileNotFoundException. It is the same exception that I get when the Irrlicht.dll file is not in the same directory. But it is. The same code works fine on Windows XP.

Any help?

Maybe you'll need Irrlicht.NET in the same directory too.

I'm using vista as well and it seems to be working fine here.