I just purchased and activated a registration for FSUIPC V. 3999z8...now PF3 and FDC both won't connect to flightsim.
"Incorrect version of FSUIPC, or not FSUIPC"
My version is the same and was working before...All I did was activate a registration...now both programs give me the same error.
(If I deactivate the registration both programs go back to working...)