public MainForm() { InitializeComponent(); debugCheck1.Checked = FixmlMsg.DebugInternals.Enabled; debugCheck2.Checked = FixmlMsg.DebugOriginalXml.Enabled; debugCheck3.Checked = FixmlMsg.DebugFormattedXml.Enabled; debugCheck4.Checked = FixmlMsg.DebugParsedMessage.Enabled = true; myTraceListener = new RichTextBoxTraceListener(debugBox); Debug.Listeners.Add(myTraceListener); Bossa.OnUpdate += Bossa_OnUpdate; }