c# Message Sending Application

Question

Hello Friends...

I created sms sending application 

but some days before it doesn't work..

Please help me..  here is the code 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Web;

using System.Net;

using System.IO;

namespace WindowsFormsApplication3

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void btnSend_Click(object sender, EventArgs e)

        {

            send(txtLoginId.Text, txtpassword.Text, richTextBox1.Text, textBox1.Text);

        }

       

        public void send(string uid, string password, string message, string no)

        {

            try

            {

                HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create("http://ubaid.tk/sms/sms.aspx?=" + uid + "&pwd=" + password + "&msg=" + message + "&phone=" + no + "&provider=way2sms");

                HttpWebResponse myResp = (HttpWebResponse)myReq.GetResponse();

                System.IO.StreamReader respStreamReader = new System.IO.StreamReader(myResp.GetResponseStream());

                string responseString = respStreamReader.ReadToEnd();

                respStreamReader.Close();

                myResp.Close();

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message);

            }

            MessageBox.Show("Msg Send");

        }

    }

}