C#

UdpClient u = new UdpClient("224.0.5.128", 2362);

byte[] packet3 = new byte[] {68, 73, 71, 73, 0, 1, 0, 6, 255, 255, 255, 255, 255, 255 };
int port = ((IPEndPoint)u.Client.LocalEndPoint).Port;
IPEndPoint recvpt = new IPEndPoint(System.Net.IPAddress.Any, 0);

u.Send(packet3, packet3.Length);

byte[] data = u.Receive(ref recvpt);
u.Close();

public interface IFrameworkMethods
{
  int DoSomething();
}

public int DoSomething()
{
  int resultCode = 0;

  if (directRemotingAvailable)
  {
    //create necessary remoting objects
    resultCode = remotingObject.DoSomething();
  }
  else
  {
    //create necessary web service access objects
    resultCode = webServiceObject.DoSomething();
  }

  return resultCode;
}

public int DoSomething()
{
  IFrameworkMethods obj = GetInterface();
  int resultCode = obj.DoSomething();
}

private IFrameworkMethods GetInterface()
{
  IFrameworkMethods obj = null;

  if (configIsRemoting)
  {
    //set obj to remoting interface here
  }
  else
  {
    FrameworkMethodsWebService ws = new FrameworkMethodsWebService()
    //set ws properties (i.e. proxy settings etc etc etc)

    //hmmm, there seems to be a problem casting the
    //web references to the IFrameworkMethods interface
  }
}