I use FS2004 and I have the registered version, however, I have had some problems with the connection (It does not detect the simualdor) even if FSUIPC is correctly installed as well. I went back to version 2 (By the way, it does not connect to the bridge either). I would like and would appreciate it if you post the correct configuration for FS2004 and enjoy FSrealXW V3. Thank you so much.
FSrealWX - Weather AddOn for Flightsimulators FS2004, FSX, P3D and Xplane