Hi, first sorry for my english XD.

I am developing an application in C# with .NET using the last version of 32feet.NET library. My application may send files to multiple cell-phones at the same time. To do it i have a thread with the discover devices searching code (i use the backgroudWorker class for this), and when i have all the discovered devices in a list, i create a new thread (with an another backgroundWorker) for each device in the list. Each created thread runs the send code... But it does not work properly because it only send´s data to the first discovered device.

 I hope you can help me, and i post my searching and sending code for this:

   // Search Code
    public static InTheHand.Net.Sockets.BluetoothDeviceInfo[ BusquedaDispositivos(BackgroundWorker worker,  DoWorkEventArgs e)
    {
         InTheHand.Net.Sockets.BluetoothClient btClient = new InTheHand.Net.Sockets.BluetoothClient();
         InTheHand.Net.Sockets.BluetoothDeviceInfo[ bdi = btClient.DiscoverDevices(15);
         return bdi;
     }

 // Send Code
 public  RespuestaEnvioOBEX EnvioFichero(BackgroundWorker worker, DoWorkEventArgs e)
        {
            string Fichero = "C:\\Proyectos\\proyectoMarketingBluetooth\\EnvioFicheros\\Prueba.txt";

            try
            {
                InTheHand.Net.ObexWebRequest request = new InTheHand.Net.ObexWebRequest(((DatosEnvioOBEX)e.Argument).Uri);
                request.ReadFile(Fichero);
                InTheHand.Net.ObexWebResponse response = (InTheHand.Net.ObexWebResponse)request.GetResponse();
                response.Close();
                RespuestaEnvioOBEX respuesta = new RespuestaEnvioOBEX(response, ((DatosEnvioOBEX)e.Argument).Mac, ((DatosEnvioOBEX)   e.Argument).NombreDispositivo, null);

               return respuesta;
            }
            catch (Exception ex)
            {
                DatosEnvioOBEX datos = (DatosEnvioOBEX)e.Argument;

                RespuestaEnvioOBEX respuesta = new RespuestaEnvioOBEX(null, ((DatosEnvioOBEX)e.Argument).Mac,  ((DatosEnvioOBEX)e.Argument).NombreDispositivo, ex.Message);

                return respuesta;
            }

        // This send Code is invoqued from this another code
        private void EnvioFicherosADispositivos()
        {
            int i = 0;
            foreach(InTheHand.Net.Sockets.BluetoothDeviceInfo dispositivo in this.dispositivosEncontrados)
            {
                i++;

                Uri theuri = new Uri("obex://" + dispositivo.DeviceAddress.ToString() + "/" +  System.IO.Path.GetFileName (Configuracion.NombreFichero));
  

               dispositivo.DeviceAddress.ToString(), dispositivo.DeviceName,       

               Convert.ToInt32(dispositivo.ClassOfDevice.Device));

                this.configurarBakcParaCadaDispositivo(new DatosEnvioOBEX(theuri, dispositivo.DeviceAddress.ToString(),  

  dispositivo.DeviceName, Convert.ToInt32(dispositivo.ClassOfDevice.Device)));                
            }
            this.recorridaListaCompleta = true;
            MessageBox.Show("Envio finalizado");
        }

 private void configurarBakcParaCadaDispositivo(DatosEnvioOBEX vDatosEnvio)
        {
            BackgroundWorker backgroundWorkerEnvio = new BackgroundWorker();
            backgroundWorkersEnvio.Add(backgroundWorkerEnvio);
            backgroundWorkersEnvio[backgroundWorkersEnvio.Count - 1].WorkerSupportsCancellation = true;
            backgroundWorkersEnvio[backgroundWorkersEnvio.Count - 1].DoWork += new       

DoWorkEventHandler(backgroundWorkerEnvio_DoWork);
            backgroundWorkersEnvio[backgroundWorkersEnvio.Count - 1].RunWorkerCompleted += new      

  RunWorkerCompletedEventHandler(backgroundWorkerEnvio_RunWorkerCompleted);
            backgroundWorkersEnvio[backgroundWorkersEnvio.Count - 1].RunWorkerAsync(vDatosEnvio);
        }

Very thanks!