Q: The ProFlight 2000 Compile button is greyed out so I can't compile an ADV Flight File
A: There are a couple of reasons why this may occur. Firstly, if the flight plan you are attempting to load is not in the correct format. Remember ProFlight requires FS2000 format flight plans so FS9 and/or FSX flight plans require converting, which you can do from within PFE. Secondly you need to select the Use Real Weather option in the ProFlight Settings page... turning that option off makes the Compile button inactive so please ensure it is on.