Dear Mr. Dowson Good Evening,
i'll try to describe the issues, we are using an add-on product for fsx, from Vertical Reality, it's VRS Superbug F 18E Super Hornet.
It uses you product FSUIPC to create a custom keyboard layout, and to implement several features, like the drag change after the weapon release and similar.
It has to be constantly connected to di FSUIPC and to the simconnect.
It has a load manager utility to configure lodauts, livreries, level of sim ecc.
Probably between the the previous vesrsion of fsuipc version (4.703) and the last you had made some deep changes to the programmation routine, and now our add on, can not be connected with your program.
Bye bye Gabriele.
