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. ... The server where your copy of ByteWedge professional is installed, will be able to read data from this file as if it were a serial port. ... 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.
http://www.fogsoft.com/download/ByteWedge_Pro_Setup.zip - 3Mb - Download - Screenshot

Docklight RS232 Terminal - RS232 Monitor
Docklight is a test, analysis and simulation tool for serial communication protocols (RS232, RS485/422 and others). It allows you to monitor the communication between two serial devices or to test the serial communication of a single device. Docklight is easy to use and runs on almost any... * Logging RS232 data - All serial communication data can be logged using two different file formats: use plain text format for fast logging and storing huge amounts of data. ... * Detecting specific data sequences - In many test cases you will need to check for a specific sequence within the RS232 data...
http://www.docklight.de/download/Docklight.zip - 3Mb - Download - Screenshot

Serial Port Monitor
Captures and displays time-tagged text and binary data across a PC serial port, from COM1 to COM12. Supports simultaneous capture to screen, with optional output to file and printer. Display & file/printer capture in three modes: single character, line (terminated by LF or CR), or string... NOTE: Does not share a COMM port with another Windows program, must tap off serial line externally.
http://www.retisoft.com/SrMon111.zip - 3Mb - Download - Screenshot

Advanced Serial Port Monitor
Today we are all living in a completely new era. Nowadays, utilizing digital technologies is as natural as breathing and eating. This is why so many businesses turn towards digital products and solutions. The number of devices that can be connected to a home or office PC grows exponentially. ... Advanced Serial Port Monitor can operate in manual, automatic and spy modes providing developers with unique opportunity to monitor all data received from a device connected to COM port as well as send data directly to a serial port either manually or automatically on given time intervals.
http://www.aggsoft.com/download/aspmon35.exe - 2Mb - 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. ... ActiveComport can control any device that has a serial interface (com port): a printer, a modem, an ISDN modem, a USB serial device, a network device, a computer, a weight indicator, a scanner, etc. ... NET platforms. ... activexperts. ... com/activcomport to view online samples.
http://www.activexperts.com/files/activcomport/acomport.exe - 1Mb - Download - Screenshot

Multicom.Net
While the operation of different facilities, which are connected to a computer via serial port, there may appear the necessity to start up utility program (for these facilities) not in the machine, to which the facilities connect directly, but in the remote machine, that is connected to the... net -Optimize network data flow between computer & data terminal. ... The use of our product gives you the possibility to give the remote access to serial port via TCP/IP. ... -Provide additional control through serial stream.
http://www.intellidriver.com/downloads/products/multicomnet.zip - 283Kb - Download

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 most reliable way to create null-modem connection is using of virtual serial ports emulated by virtual serial port driver and null-modem cable. ... s no need in a single PC with several free serial ports and additional multi serial port devices which are expensive and bulky.
http://www.virtual-null-modem.com/download/vnullmod20.exe - 1Mb - Download - Screenshot

sWedge
sWedge is a small program that allows you to convert data sent through the serial port to keyboard data, as if it was typed into the keyboard. This allows you to use Bluetooth devices, barcode scanners, cheque readers, magnetic stripe readers and even other computers to input data as if it had... Features powerful data formatting, can log all data to a file, can restrict data to be sent to only selected programs for sensitive data, can be set to start automatically and works with barcode scanners, cheque readers, magnetic stripe readers, any hardware that transmits data via the...
http://www.dcsa.com.au/sware/sWedge_Demo.exe - 248Kb - Download - Screenshot

COM Port Toolkit
COM Port Toolkit is an integrated serial communications testing toolkit. It sends user's data to and receives one from a device and records all transfers to a log. You can test equipments serial communications protocol by hand: feed it input, check the output. ... COM Port Toolkit can capture serial communications between the device and the software by using special serial port driver. ... You can write or use a script written by other developers to automate some specific tasks: CRC calculations, special transfer rules, outgoing data modifications and etc.
http://www.compt.ru/download/compt.zip - 1Mb - Download - Screenshot

Serial Port Control
Software developers can access various devices by utilizing the Windows API. When using an API, you gain access to a full spectrum of available features, but API programming is a very tough and time-consuming task. You have to study the documentation and you have to create all the... Just put it on a form and you have all the functionality you need to access a serial port, either physical or virtual. ... Serial Port Control automatically enumerates all the ports available in the system. ... You don't have to check ports periodically in order to find if there is new data available for...
http://www.serial-port-control.com/serial-port-control.zip - 561Kb - Download - Screenshot