I have a friend who is not tech saavy, but has been using Flight Simulator for more than 10 years. He recently got a new computer and has successfully reinstalled FSX and FS Commander. He has re-purchased (lost license years ago) FSUIPC and it appears to install and license correctly, however, upon opening FSX, FSUIPC does not appear in the menu bar, nor is FSX interacting with FSC (e.g. he is unable to locate his plane at an airport. I have tried to help (I am very tech saavy, but have zero experience with flight sims) but have been unable to determine the issue. Hoping there is a quick answer to this issue that I can take back to him (in person) and apply to get him fully back up and running.
Additional related question: Once he gets back up and running with FSUIPC on FSX, will everything continue to work if he performs an in-line upgrade to FS2020 after he gets a more modern video card (note the card he has now is supported for FSX).
Thank you in advance for the assist, I know he will appreciate it.