/// <summary>
/// Perform an orderly shutdown of the MFD Extractor.
/// </summary>
private void Quit()
{
//Stop the Extractor engine
Extractor.GetInstance().Stop();
Extractor.DisposeInstance();
//remove the applicaton's tray icon from the tray
nfyTrayIcon.Visible = false;
//Close the application's main form
if (!_isClosing)
{
Close();
}
}