For the new STEAM version of FSX:
I’ve had a few support cases from new users of the Steam version of FSX. The issue is with FlightConnect crashing on launch. It looks like sometimes the SimConnect library is not installed properly when the rest of FSX is installed thru Steam. This can be easily fixed by manually installing SimConnect from the installation directory of FSX. In my case it exists here:
Today, Dovetail games announced the availability of a new Steam Powered version of Flight Simulator X. Vine Ripe Software is pleased to announce that FlightConnect, the application that FlightMap and FlightGauge rely on for simulator data, fully supports the Steam version of FSX right out of the box without any modification or patches.
More information on the Steam version of FSX can be found here (plus it’s on sale right now)