MultiMail is an offline mail packet reader for Unix and other systems. It currently supports the Blue Wave, QWK, OMEN, OPX and SOUP formats. It has a full screen, color user interface, built with the curses library.
an ethernet-based file system for DOS
EtherDFS is an 'installable filesystem' TSR for DOS. It maps a drive from a remote computer (typically Linux-based) to a local drive letter, using raw ethernet frames to communicate. For years, I was using LapLink to transfer files between my various "retro" computers. It works, yes, but it's also annoyingly slow and requires constant attention. One day I thought, "Wouldn't it be amazing if all my PCs could share a common network drive, similarly to how NFS operates in the *nix world?". This day EtherDFS was born. I clearly didn't invent anything - the concept has been around almost as long as the first IBM PC, and several commercial products addressed that need in the past. I am not aware, however, of any free and open-source solution.
CBAR - a bar code reader lib
CCOM - a lib for serial port interface
The Fast Echomail Processor/tosser, for Fidonet Technology Networks
FMail is an echo mail processor/tosser for Hudson and JAM message bases. Also included is a message base maintenance utility with a lot of special features. The Windows version can handle more areas than the standard version and is optimized for use with 32-bit versions of MS Windows. But also works on 64 bit versions of Windows 7 and up.
The full source code release of the Maximus bulletin board software and related projects (including Squish and other utilities).