ProgressBar oPB1;
        delegate void SetPBCallback(ProgressBar oPB);
  public frmLogin()
  {
    //
    // The InitializeComponent() call is required for Windows Forms designer support.
    //
    InitializeComponent();

               oPB1 = new ProgressBar();
               oPB1.Width = 190;
               oPB1.Location = new Point(292, 227);
               oPB1.Style = ProgressBarStyle.Marquee;
               oPB1.BringToFront();
  }

        void startPB()
        {
            SetPB(oPB1);
        }

        private void SetPB(ProgressBar oPB)
        {
            if (this.panel1.InvokeRequired)
            {
                SetPBCallback d = new SetPBCallback(SetPB);
                this.Invoke(d, new object[] { oPB });
            }
            else
            {
                panel1.Controls.Add(oPB1);
            }
        }

  void FrmLoginLoad(object sender, EventArgs e)
  {
            Thread thPB = new Thread(startPB);
            thPB.Start();

      btnLogout.Enabled = false;
      hideControls();
      this.Show();
      while (this.Opacity < 1.0)
      this.Opacity += 0.02;

      showControls();
            this.Refresh();

            lblInfo.Text += "\nCaricamento versione..." ;
            lblInfo.Refresh();
            //lblInfo.Text viene poi aggiunto di diverse informazioni man mano che esse vengono caricate
       }