Well, that was a fun little quiz… I should have added “no scoping tricks” to the list of rules, but what Roy Osherove suggested does work.  But Kevin Dente  gives the answer I was looking for.  Whenever you see something funny going on in the framework 9 out 10 times it is because of Com Interop ;-)… go figure:


using System.Runtime.InteropServices;





interface IFoo { }


public class Class1 {

    static void Main() {

        new IFoo();



class Foo : IFoo { }



Thanks again to the folks down-under for suggesting this quiz.