I finally found a solution for a problem I had a while ago, which was the good old "Minimize to Tray" option, without resorting to hiding the window. The ITaskbarList COM interface can Add, Delete, and Activate taskbar buttons from window handles. One caveat is that the window must have the $WS_CAPTION style. It was necessary to implement these methods via plugin, since AutoIt is unable to access this COM interface. On success the functions return 0 (S_OK). If an error occurred, they retu