If you look at FSDeveloper, I had clarified that already. Everyone has the mission and is running FSX Acceleration.keep getting the "The host was unable to launch the session due to an
internal error" error.
Hi- this is most likely happening because you or your multiplayer partner is (Missing) a file..object ect...Everyone (Must) have everything that is original created (Plus) everyone must have Acceleration installed for a MP mission to work period..This is not supported in Default FSX/SP1 or SP2..you all must have Accel or you will get this error if you try to join a MP session
Thanks for mentioning that, though.