In the form's properties I set ...

Opacity = 0%
ShowInTaskbar = False
Size = 0,0

Ron, you don't need a main form at all in a WinForms app. Make a new
WinForms app, delete the form, and try this pseudo-code. You will need
to supply your own icon, menu etc., this won't compile out of the box
but should give you an idea of what is needed.

static class Program {

private static NotifyIcon m_Notify;

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main() {
   Application.EnableVisualStyles();
   Application.SetCompatibleTextRenderingDefault(false);

   // We don't need a form in order to create a notify icon.
   m_Notify = new NotifyIcon();
   m_Notify.Text = "Click me!";

   // Must have an icon else we won't appear.
   m_Notify.Icon = Properties.Resources.RonsIconHere;

   // Handling a click is easy...
   m_Notify.Click += new EventHandler(m_Notify_Click);

   // Or a context menu...
   //BuildContextMenu();

   m_Notify.Visible = true;

   // Start the windows message pump. The application will continue
   // to run until Windows shuts down or your application is exited
   // (you must provide the user with a way to do that).
   Application.Run();
}

}
--
Philip Daniels