Hi Robert,

I just created small project containing a form -- it works Ok either as form or as executable. It's really hard to say what could work wrong in you code.

Form.Init
this.tray.addicontoiconlist("tree.ico")

Form.ShowIcon && attached to command button
this.tray.addicontosystray()

Form.HideIcon  && attached to command button
this.tray.removeiconfromsystray()