Comm++ v3.07
By sysFire

Written in C++ and assembly language, Comm++ provides extensive functionality. Provides classes for such functionality as ports, modems, terminal emulations, screen drivers, text, video, keyboard and lots more! Supports Win 95, Win 3.1, DOS, Novell NASI, and OS/2 Warp. ... 

CommLib v5.2
By sysFire

The most trusted, complete, and versatile asynchronous communications library. Over 450 public functions and macros for asynchronous serial comm. Function pointers (virtual functions) for device independence. Port control for any number of ports on standard or intelligent multiport boards. XModem, YModem, ZModem, Kermit, and ASCII file transfer protocols, terminal emulation and modem control. ... 

Enterprise Database Pack
By FarPoint Technologies

This bundle includes FarPoint Spread v3.0, List Pro v3.0, and Input Pro v3.0. ...