Source Code Release: QModem 4.51, a Classic MS-DOS Communications Program

The source code for QModem 4.51, an MS-DOS telecommunications program by John Friel III (1960-2024), has been released. This 1992 'Test-Drive' edition boasts features like support for various modem protocols, scripting, customization, auto-configuration, and even a Host Mode. A valuable historical artifact for telecom enthusiasts, retrocomputing hobbyists, and anyone interested in classic DOS software. However, compiling requires Turbo Pascal 5.x/6.0 and various dependencies, along with tackling overlay management – a challenging undertaking.