Serial Port Monitoring Control
Serial Port Monitoring Control (SPMC) - RS232 Data Acquisition and Com Port Control Component Library, Modem Access Component. Connection Sniffer and Port Test Software Library. The library lets you enumerate all installed serial devices, including, but not limited to serial ports and modems. ... After you get an instance of the serial device, you can create a monitor object and attach to the device to receive monitored data and events. ... The Monitor object can be attached to the device at any time, no matter if the device is being currently used or not.
http://www.hhdsoftware.com/Download/hhdspmc.exe - 470Kb - Download - Screenshot

Network Serial Port Kit
Network Serial Port Kit allows you to connect any serial port devices over the TCP/IP network or Internet. Creation of local virtual serial ports pairs are available as well. Program creates up to 254 virtual serial ports at a time. Physical COM ports located on remote computer can be connected... For example you can convert usual PC to "Serial Port Server" so then you can connect any serial device directly to a TCP/IP network and communicate with that device from any other PC in the same network or across the Internet.
http://www.network-serial-port.com/network-serial-port-kit.zip - 980Kb - Download - Screenshot

Serial Monitor
Software serial port monitor Rs232 sniffer with protocol analyzer and packet data logger. This monitoring utility can spy, capture, view, log, analyze, test com ports activity performing com port connection and traffic analysis with data acquisition and control. ... Serial Monitor can be successfully used for monitoring data flow between serial devices and Windows application, debugging com port connections, developing, reverse-engineering and implementing serial protocol, serial device driver development, serial hardware development, research the functionality of any third-party software...
http://www.hhdsoftware.com/Download/serial-monitor.exe - 1Mb - Download - Screenshot

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. ... Just plug a device into a laptop connected to your local network or to the Internet and receive data on your server as if it were directly connected to the server's serial port. ... ByteWedge comes with a freeware utility called Serial-File.
http://www.fogsoft.com/download/ByteWedge_Pro_Setup.zip - 3Mb - Download - Screenshot

Free Serial Port Monitor
Free software serial port monitor, Com Rs232 sniffer with communication packet data analyzer. This monitoring utility can spy, capture, view, analyze, test com ports activity performing com port connection and traffic analysis with data acquisition and control. ... Serial Monitor can be successfully used for monitoring data flow between serial devices and Windows application, debugging com port connections, developing, reverse-engineering and implementing serial protocol, serial device driver development, serial hardware development, research the functionality of any third-party software...
http://www.serial-port-monitor.com...load/free-serial-port-monitor.exe - 3Mb - Download - Screenshot

Virtual Serial Port Control
If there is a task to provide interaction between communications application and your own program (e. g. serial device emulator), there is no common solution to accomplish it. It is considered that communications applications are intended to work only with hardware serial devices connected to... Everything that can be done with physical serial port by a serial device is possible to be done with virtual serial port by VSPC. ... At the same time Virtual Serial Port Control immediately notifies your application about any actions done by communications application with serial port (port...
http://www.virtual-serial-port-con...m/virtual-serial-port-control.zip - 790Kb - 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

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. ... , and can be used on Windows 98, Windows NT, Windows 2000, Windows XP and Windows .
http://www.activexperts.com/files/activcomport/acomport.exe - 1Mb - Download - Screenshot

Serial Splitter Mobile
Serial Splitter Mobile by Eltima for Windows Mobile 2003/2005 operating systems is a new generation of professional system utilities for mobile devices. This is the software for splitting real serial ports into virtual ones. It can be useful if you need several applications to work with the same... The essential feature is disabling existing serial ports (for instance, COM1 may be used by other device and isn't free therefore) to spear a slot for virtual one and use it for your needs. ... Serial Splitter Mobile can create up to 20 virtual ports for real ports splitting - COM0-COM9, VSP0-VSP9.
http://www.virtualserialport.com/download/serial_splitter_mobile.exe - 147Kb - 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