using System;

using System.Runtime.InteropServices;

public class Program

{

    public static void Main()

    {

        var t = new IDummy();

        Console.WriteLine("Hello World");

    }

}

​

[Guid("00000000-0000-0000-0000-000000000000")]

[ComImport, CoClass(typeof(Dummy))]

public interface IDummy {}

​

[Guid("00000000-0000-0000-0000-000000000000")]

[ComImport]

public class Dummy : IDummy {}

​