dos

This is the source that was released to the public, I believe 7.1.5.

RTX 2000 DEMO+ is a translation for TURBO C++ 3.1 w/TASM. With very minor changes the original RTX DEMO compiled almost right-out-of-the-box. I hope the changes made necessary for Turbo C are clearly commented.

rxdos sources from 7.20N through 7.24 that are hard to find, so I have them here for reference. I also found an archive that are labeled 7.25.

Source from the Dissecting DOS floppy by Michael Podanoffsky.