I've used Galactic 2.4 for years but, as has been pointed out, there's quite a bit of setup necessary. Setup as in installing a DOS emulator on your PC, the manual building of links to text files (as in Notepad text files, not modern software like MSWord), and the manual conversion of GIF (only) graphics files to self executing files using GIFExe.
Like I said, I've used it for years. I also use the "Heaven & Earth" software (having been on the beta test team) which is Windows-based and more user-friendly but it hasn't been supported in years. The creator of Galactic 2.4, Jim Vassalikos, is still around and happy to answer some questions on it. There's also a couple of Yahoo! forum groups for Galactic discussions.