public static void main(string[] args)
{
  //first argument passed is a Url, if a second and third argument are passed,
  //then they're considered to be the user name and password to use for authentication
  String url = args[0];
  String userName = null;
  String password = null;
  try
  {
    userName = args[1];
    password = args[2];
  }
  catch(ArrayIndexOutOfBoundsException ex) { }

  Open(url, userName, password);
}