FSX & FSX: Steam Edition Installing Add-ons Questions & Answers

Installing FSX on modern Windows can expose old installer assumptions, permission problems and the familiar MSXML 4.0 error. This hub explains clean installation, compatibility choices for Windows 10 and 11, and the path differences between boxed FSX and FSX: Steam Edition. It also covers where aircraft and scenery files belong, including gauges, effects and scenery-library entries.

The add-on guides address common failures: aircraft missing from the selection menu, scenery not appearing, duplicate folders, and AI packages such as WOAI installing correctly but producing no traffic. Answers are written and tested by the Fly Away team, with checks for folder structure, activation order and traffic settings before recommending a reinstall.