public static void Main()
{
AppDomain otherDomain = AppDomain.CreateDomain("otherDomain");
PingPong pp = new PingPong();
pp.MyCallBack();
pp.greetings = "PONG!";
otherDomain.DoCallBack(new CrossAppDomainDelegate(pp.MyCallBack));
// Output:
// PING! from defaultDomain
// PONG! from defaultDomain
}
