RS232 Data Logger is an Open Source application by Eltima that lets you redirect all received and sent data from RS232 compliant serial port device into a text file with the ability of further analysis, if needed. RS232 Data Logger redirects data from any available real or virtual serial port and fully works under Virtual Machine (VMWare). This freeware utility performs data gather from multiple serial ports simultaneously.

Xbase++ RS232 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, modem control, ASCII/XMODEM/YMODEM. Supports virtual ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Use with all versions of Xbase++. Works with Win95 thru Vista.

PowerBASIC RS232 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, modem control, ASCII/XMODEM/YMODEM. Supports virtual ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Use with all versions of Windows PowerBASIC (PB/CC, PB/DLL, PB/WIN). Works with Win95 thru Vista.

Visual dBase RS232 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, modem control, ASCII/XMODEM/YMODEM. Supports virtual ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Use with all versions of Visual dBase. Works with Win95 thru Vista.

Visual FoxPro RS232 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, modem control, ASCII/XMODEM/YMODEM. Supports virtual ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Use with all versions of Microsoft Visual FoxPro. Works with Win95 thru Vista.

Borland Delphi RS232 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, port re-entrant, modem control,ASCII/XMODEM/YMODEM. Supports virtual ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Use with all versions of Borland Delphi through Delphi .NET. Works with Win95 thru Vista.

Visual Basic RS232 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, port re-entrant, modem control,ASCII/XMODEM/YMODEM. Supports virtual ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Use with all versions of Microsoft Visual Basic through VB.NET. Works with Win95 thru Vista.

ser232mon can monitor the RS232 COM1,2,3,... and show the datas when the Windows application control the RS232 COM port,such as modem mini-ATS, projector etc.

C/C++/C# RS232 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, port re-entrant, modem control, ANSI emulation, ASCII/XMODEM/YMODEM. Supports virtual ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Use with Microsoft C/C++/C#, Borland C/C++, Watcom C/C++, LCC-Win32, MFC and C++ Builder. Works with Win95 thru Vista.

Lightweight HTTP server and a script engine (like PHP or ASP) in one application .
It is a very good tool to control a device connected on a remote PC serial port
with a web browser. You can build a complete web interface for your RS232 device,
for example for a home automation box, a remote camera, a ham radio, writing html
and script pages. The script code is executed by the internal script engine, so is
very fast. PHP integration.