01-06-2022, 01:45 PM
Phi9891, you can use the demo until Dan sends you a serial code. But, that also depends on which version of FsP you are attempting to use. Dan hasn't updated FsP for a long time now, which can be a huge problem for FSX-SE and P3D users with the latest versions of both sims. Won't work at all.
See FsPassengers Frequently Asked Questions: FAQ