Yes, you must run it from the setup window. Its only useful if you have a network connected to your car pc (when at home). It lets you update your car from either in the house (with the autosync.exe) or from the car with the setup window. Autosync only synchronizes what is different, and only things that are not alike on the carPC. If something is on the carpc that is not on the home pc, it won't end up on the home pc.