Programs in GDE subfolders are not related to GDE. Only the method how they are called is similar to the method introduced by GDE. That method uses a scriptable menu configuration, defining parameters and how to pass them to the single programs. These menus can be configured in ../GDEHELP/ARB_GDEmenus.source and in .menu files in ../GDEHELP/MENUS The 'GDE menus language' is decribed in ../HELP_SOURCE/oldhelp/gde_menus.hlp