COMM-DRV++ Easy to use professional serial communication C++ class library for Windows XP, Windows 2000, Windows Me, Windows 98, & Windows 95. Includes the ZModem, YModem, & XModem file transfer protocols. Supports Microsoft Visual C++ & Borland C+
Virtual Serial Ports Driver Virtual Serial Port Driver by Virtual Serial Port Software, department of Eltima, emulates two virtual serial ports with real serial port functionality, including baud rate, data bits, and allows connecting two applications via virtual serial ports.
Windows Std Serial Comm Lib for Xbase++ Xbase++ serial communication component library for serial port communications. Controls multiple ports simultaneously; works with all versions of Xbase. Not dependant on support libraries. Use with any language that can call the Windows API.
MarshallSoft GPS Component for C/C++ GPS component C/C++ library toolkit reads and decodes standard GPS NMEA 183 sentences from the RS232 serial port, and computes great circle distances and bearings. Runs as a background thread unattended. Works with C++,VC.NET,C#,MFC,C++ Builder.
Windows Std Serial Comm Lib for C/C++ Serial port communications component C/C++ library for C++ and .NET programmers. Control multiple ports simultaneously. Includes modem control, ANSI emulation, ASCII/XMODEM/YMODEM, virtual usb bluetooth serial ports, hardware/software flow control.