send text message from PC to Mobile via bluetooth

[ecem]

Hello,,
I want to send text message from PC to Mobile via bluetooth and I wrote this code

 
 private void send_text()
        {
            BluetoothRadio.PrimaryRadio.Mode = RadioMode.Discoverable;
            bluetoothClient = new BluetoothClient();
 
        for (int i = 0; i < sayi; i++)
        {                        
                InTheHand.Net.BluetoothAddress adres = this.adres_dizisi[i];
                try
                {
                    bluetoothClient.Connect(new BluetoothEndPoint((BluetoothAddress)adres,service));*************  ((   in this line error
                                       socketexception was found   The requested address is not valid in its context.InTheHand.Net.BluetoothEndPoint  ))  ************ 
  .......................
.......................... 
 
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }
 

What can I do to solve this problem?..Please help me..