I bought the Realsimgear software. I use the GNS 430 in XP 12. I finally got it working. That was not easy.
Now I see that airports are missing in the database. EHTW is a former military airport.
Still active. However, I can't find it in the GNS 430. Not in the icao/IATA designation.
Did I miss an update here? If so, how can I get that update?