Hi Urs,
Does EFB DataProvider program read the runways.txt file when it starts or when a " Request for Airport" is received from DisplayUnit?
Because if the runway.txt file is read when a request is received, I can leave the DataProvider running when I see that there is a missing airport assignment. Then edit the runways.txt file and then trigger a new request by asking for a new route. This way I won't have to stop and start the DataProvider when I edit the runways.txt file.
By the way, this is a wonderful program. Extremely well written, robust, user friendly, intuitive, and broadly featured. Oh yeah, good support too!