C#

<br />
if (str33 == encpassword)<br />
                            {<br />
                                PassTextBox.Clear();<br />
<br />
                                ChangeButton.Show();<br />
<br />
                                Main open = new Main();<br />
                                open.ChauffButton.Text = "dfg";<br />
                                <br />
                                <br />
                            }<br />

Client side:

    class Program
    {
        static Service1[] clients = null;
        static Thread[] threads = null;

        static void ThreadJob (object index)
        {
            // query 1000 times
            for (int i = 0; i < 100; i++)
            {
                clients[(int)index].HelloWorld();
            }
        }
        
        static void Main(string[] args)
        {
            Console.WriteLine("Specify number of threads: ");
            int number = Int32.Parse(Console.ReadLine());
            
            clients = new Service1[number];
            threads = new Thread[number];

            for (int i = 0; i < number; i++)
            {
                clients [i] = new Service1();
                ParameterizedThreadStart starter = new ParameterizedThreadStart(ThreadJob);
                threads[i] = new Thread(starter);
            }

            DateTime begin = DateTime.Now;

            for (int i = 0; i < number; i++)
            {
                threads[i].Start(i);
            }

            for (int i = 0; i < number; i++)
            {
                threads[i].Join();
            }

            Console.WriteLine("Total elapsed time (s): " + (DateTime.Now - begin).TotalSeconds);

            return;
        }
    }


Server side:

        [WebMethod]
        public double HelloWorld()
        {
            return new Random().NextDouble();
        }