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using System;
using System.Collections.Generic;
using System.Reflection;
using System.Linq;
using System.Text;

namespace Assemblys
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                System.Reflection.Assembly plugin = System.Reflection.Assembly.Load("plugin.dll");
                Type[] pclass = plugin.GetTypes();

                foreach (Type p in pclass)
                {
                    if (p.IsClass)
                        Console.WriteLine(p.FullName + " is a plugin class in plugin.dll");
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                System.Threading.Thread.Sleep(10);
            }
            finally {
                System.Threading.Thread.Sleep(10);
            }
        }
    }					

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ClassLibrary1
{
    public class Class1
    {
        public void StartUp()
        {
            Console.WriteLine("Hi I am a plugin!");
        }
    }
}					

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using NR.DefinedInterface;