// This is one implementation of the abstract class PlugInForm as defined 
//  in MyPlugIn.dll .
// Compile with the command line:
//  csc /t:library MPIGrandmother.cs /r:MyPlugIn.dll
using System;
public class MPIGrandmother : PlugInForm
{
  public override void WhatIsPI()
  {
    Console.WriteLine("Yummy pastry crust with steaming hot filling.");
  }
}