Bogdan Varlamov (a.k.a. Phantom Stranger)

One of the great things about .NET 3.5 is that it is fully inter-operable with .NET 2.0. You just have to reference the right assemblies and you can use WPF and Windows Forms from the same application! This is great for slowly migrating a .NET 2.0 application over to .NET 3.5; all you have to do is add the new functionality while keeping your old .NET 2.0 logic. Once you are ready, you can slowly migrate your old code over into .NET 3.5 as needed.

Well...at least it's all that easy in theory; there's just one pesky little hiccup--a System.ExecutionEngineException...

Would you like to know more?