Is someone able to tell me what an AFCAD file is and what it does. I have been using Project AI and downloaded all the traffic files. But not sure what this AFCAD business is all about?

Quoted from the author's "readme" file:"It is a freeware CAD-style program that allows you to modify the Airport and Facilities Data (AFD) used in Microsoft Flight Simulator (FS2002). Facility data is part of the scenery database for Flight Simulator but facility data does not control any of the visual elements of scenery, like airport buildings or ground textures. Instead facility data controls the invisible maps of airports and other data that ATC uses to give directions and AI uses to move around and park at airports. It also controls the information that you see on the