To run Starflight, make sure to copy the Starflt folder into the root directory of your C drive (so put it in the C drive and not inside any folders). Then, from DOS, once you're inside the starflt folder, change directory (cd) to the "play" folder. Run starflt.com and select composite graphics. 

This is an installation of the PCjr patched version, which I installed from a patched disk. It only works in the root directory, so don't put it in any folders. I don't know if the game works if it's directly installed from disk into a particular folder, but I thought a C drive installation would be the most universal. I might include the disk later on so you can try installing it wherever you want.

Make sure to save each game after playthrough, as the install is corrupted if you start a game and then just exit.

This game hasn't been cracked, so make use of the included codes.