Visual FoxPro RS232/R485/RS422 serial port communications software library.
BSEditor: The Windows Standard Serial Communications Library for Visual FoxPro (WSC4FP) is an serial communication library based on the Windows API. Includes 36 functions plus modem control, XMODEM and YMODEM protocols, and a selection of example programs. Features include:

* Free technical support and updates for one year.
* Royalty free distribution with your compiled application.
* Includes 16-bit (WSC16.DLL) and 32-bit (WSC32.DLL) versions.
* Evaluation versions are fully functional. No unlock code is required.
* Includes over 36 functions plus modem control.
* Can control any serial device (scale, Barcode Reader, etc.) connected to a serial port.
* Can be used from GUI mode or console mode programs.
* Can control multiple ports simultaneously.
* Can be used with virtual serial ports using Bluetooth serial or a USB to serial converter.
* Supports RS232, and multidrop RS422, and RS485 ports.
* Includes hardware and software flow control.
* Supports character peek (SioEventChar).
* Supports transmit and receive timeouts.
* Can send Windows messages on completion of events (incoming character, etc.)
* Supports any baud rate (32-bit version).
* Ability to specify the parity, word size, and number of stop bits.
* Comes with ANSI emulation and ASCII, XMODEM and YMODEM.
* Supports binary and text data transfer.
* Is port re-entrant.
* State driven Xmodem and Ymodem on multiple ports simultaneously.
* Is fully thread safe.
* Supports Windows 95/98/Me/NT/2000/2003/XP/Vista.
* Works with all versions of 32-bit FoxPro and 16-bit FoxPro for Windows.
* Does not depend on support libraries. Makes calls to Windows API functions only.
* Can be used with any language (C/C++,.NET, Delphi,Visual Basic, VB.NET, etc.) that can call the Windows API. you can free download Windows Std Serial Comm Lib for FoxPro 5.0 now.