static void Main(string[] args) { HelloWorldService.HelloWorldClient ws = new HelloWorldService.HelloWorldClient(); Console.WriteLine(ws.DoWork()); Console.ReadLine(); ws.Close(); Login.LoginClient l = new LoginClient(); try { UserModel user = l.Authentication("pedroluisf", "aramis"); if (user == null) { Console.WriteLine("UserName / Password Inválidos"); Console.ReadLine(); } else { Console.WriteLine("Hello " + user.RealName); Console.ReadLine(); } l.Close(); } catch (Exception e) { Console.WriteLine(e.Message); Console.Read(); } }