By flexible you mean what?

Also, if I make a change where I add another delegate this delegate requires
2 objects:

**************************************************************
   class Program
   {
       public delegate void MessagePrintDelegate(string msg);
       protected delegate void LongRunningDelegate(MessagePrintDelegate
mCallBack);
       private delegate int GetCountDelegate(Person obj1, Person obj2);
       static void Main(string[] args)
       {
           PrintMessage("This is a direct call to PrintMessage");
           MessagePrintDelegate mpDel = new
           MessagePrintDelegate(PrintMessage);
           LongRunningDelegate lrd = new
           LongRunningDelegate(LongRunningMethod);
           mpDel("This is the direct Call to delegate");
           lrd(mpDel);
           LongRunningMethod(mpDel);
           GetCountDelegate gcd = new GetCountDelegate(GetCount);
           int count = gcd(new Person(), new Person());
           int count1 = GetCount(new Person(), new Person());
           Console.WriteLine("Count received: {0} and {1}", count, count1);
           Console.Read();
       }

       static void LongRunningMethod(MessagePrintDelegate mpd)
       {
           for (int i = 0; i < 99; i++)
           {
               if (i % 10 == 0)
               {
                   mpd(string.Format("Making progress.  {0}% Complete.",
i));
               }
           }
       }

       static void PrintMessage(string msg)
       {
           Console.WriteLine("[{0}] {1}", DateTime.Now.ToShortTimeString(),
msg);
       }

       static int GetCount(object obj1, object obj2)
       {
           Random rnd = new Random();
           return rnd.Next();
       }

       class Person
       {
       }

       class Contact : Person
       {
       }
   }
***************************************************************
and I have to add the parameters - which makes sense but in my other
delegate call, I didn't even though it required a parameter:

lrd(mpDel)

lrd is calling mpDel which is a delegate which calls a method PrintMessage
which requires a string parameter. But:

int count = gcd(new Person(), new Person()));

here gcd is calling a method that has 2 parameters and has to pass the
parameters.

lrd is callint the mdel which is a PrintMessage method that requires a
string - but I can't see here the string is actually set - but it works.

Why is that?

Thanks,

Tom