Simple RS 232 monitor
Simple RS 232 monitor is a small diagnostic program used to monitor RS 232 communications between devices. Usually, one device is a computer. The software supports baud rates from 110 up to 256000 baud, and 4 data bits to 8 data bits. Captured data may be timestamped, annotated, and saved in a... In source capture mode, the program allows the transmission of user-entered strings - this mode is ideal for diagnostic communication with modems and peripheral devices. ... In passive capture mode, the software can determine DTE and DCE communication settings automatically.
http://www.microactive.com.au/downloads/RS232Monitor.zip - 7Mb - Download - Screenshot

Look RS232
Look RS232 is a tool for debugging computer connection with peripheral devices using COM port, such as modem, mini-ATS, projector etc. Its easy to use interface guarantees an easy work with Com-port. Look RS232 can send data through COM port, receive data from an outer device through COM port,... Look RS-232 works with system initiated COM ports regardless of whether they are installed on motherboard or on supplementary in/output boards, e. ... Look RS-232 supports data input in ASCII, BIN, HEX, OCT formats, keeps log of the sent and received data and commands in ASCII, BIN, HEX, OCT...
http://www.lookrs232.com/download.php?file=lookrs232.exe - 2Mb - Download - Screenshot

Bill Serial Port Monitor
To monitor (bi-directional) Serial communication RS-232 between two devices without physical cable, you can use the freeware Bill Serial Monitor. This freeware enable you to view, log, test and analyse the activity of the serial RS-232 port. If you want to monitor the serial protocol of two...
http://www.symcod.com/BillSerialMonitor.zip - 4Mb - Download - Screenshot

IPCOMServer
IPCOMServer is a cheap and easy solution to control RS-232 devices without the use of expensive router products like a Cisco® 2511 Terminal server. The IPCOMServer acts as a Telnet server, connecting the user directly to a chosen COM port. IPCOMServer can be connected to by either using a Telnet... A Telnet program will provide the user with a text interface to interrogate the attached RS-232 device. ... At the host the incoming commands are relayed to the serial port. ... See the application notes for more information.
http://www.tigme.com/software_0004_ipcomserver3.zip - 2Mb - Download

ByteWedge Professional
There are many scientific, engineering, medical devices and instruments that use the RS-232 (serial port) interface to send data to a computer for further logging and analyzing. It works well when you can plug your device into your computer with a serial data cable. ... In addition to the normal RS-232 data processing operations, the program also allows you to transfer data from remote devices across TCP/IP networks. ... ByteWedge comes with a freeware utility called Serial-File. ... This allows you to save data from a device to your laptop disk.
http://www.fogsoft.com/download/ByteWedge_Pro_Setup.zip - 3Mb - Download - Screenshot

Virtual Null Modem
Null-modem cable is basically used for communication of two RS-232 DTE devices with each other. To create null-modem connection between the devices you need to use two computers or two serial ports of a single computer connected with null-modem cable. ... The program emulates one or more couples of RS-232 serial ports connected via virtual null-modem cable. ... Usually you need to use virtual null-modem when you have two applications to be connected via serial ports. ... It is possible to create the unlimited couples of virtual serial ports on a single PC and connect them in any sequence...
http://www.virtual-null-modem.com/download/vnullmod20.exe - 1Mb - Download - Screenshot

ActiveComport Serial Port Toolkit
Serial port toolkit to enable applications or scripts to communicate with a modem or other serial port device. This ActiveX control features full com port control, binary and ASCII data transfer, support for RS 232 and RS 485 standards and ISDN modem support. ... NET platforms. ... , and can be used on Windows 98, Windows NT, Windows 2000, Windows XP and Windows . ... Visit http://www. ... activexperts. ... com/activcomport to view online samples. ... ActiveComport can control any device that has a serial interface (com port): a printer, a modem, an ISDN modem, a USB serial device, a...
http://www.activexperts.com/files/activcomport/acomport.exe - 1Mb - Download - Screenshot

Windows Std Serial Comm Lib for PowerBASIC
MarshallSoft serial communication component PowerBASIC library (DLL) for serial port (RS-232. RS-422, RS-485) communications. Features of the Windows Serial Communications Library (WSC4PB) include: Uses the standard Windows API to communicate with any device connected to a serial port. ... Can be ordered with or without source code for the DLL. ... Free technical support and updates for one year. ... Can be used with managed code. ... NET, VBA, Visual FoxPro, Visual dBase, Xbase++, and COBOL. ... Programmer's, Reference, Users and Serial Comm Manuals provided.
ftp://ftp.marshallsoft.com/pub/windows/wsc4pb42.zip - 345Kb - Download - Screenshot

Windows Std Serial Comm Lib for Xbase++
MarshallSoft serial communication component Xbase++ library (DLL) for serial port (RS-232. RS-422, RS-485) communications. Features of the Windows Serial Communications Library (WSC4XB) include: Uses the standard Windows API to communicate with any device connected to a serial port. ... Free technical support and updates for one year. ... Programmer's, Reference, Users and Serial Comm Manuals provided. ... Can be ordered with or without source code for the DLL. ... Can be used with managed code.
ftp://ftp.marshallsoft.com/pub/windows/wsc4xb42.zip - 327Kb - Download - Screenshot

AlphaCom
Powerful - yet inexpensive - multi-session terminal emulator for Windows 9x/ME/NT/2K/2K3/XP. Supports SSH/Telnet/direct RS-232/Modem connections with Linux, ANSI, IBM3151, Wyse 50/50+, Wyse 60, SCO ANSI, VT52, VT100, VT102, VT220 emulation. Features include dynamic font sizing, free LPD and...
http://www.omnicomtech.com/download/bin/alpha.exe - 1Mb - Download - Screenshot