Virtual Serial Port Driver XP4.5
Virtual Serial Ports Driver XP creates two pure virtual serial ports in your system which are virtually connected to each other. For other Windows applications, virtual ports will be seen exactly as two real serial ports connected via null-modem cable. ... With user-friendly GUI and on-the-fly help of Virtual Serial Port Driver XP it's very easy to configure a virtual serial ports pair. ... With virtual ports created by Virtual Serial Port Driver XP you can connect applications to each other and exchange data between them without occupying your real serial ports and using hardware wiring.
http://www.mks.zp.ua/vspdxpd.exe - 1Mb - Download - Screenshot

Virtual Serial Port ActiveX
Eltima's Virtual Serial Port ActiveX Control allows developers to create custom virtual serial ports from application, which fully emulate real com ports. From your application you can view and control data sent to virtual serial port by other applications and respond to them by sending your own... The latest version of Virtual Serial Port ActiveX has the ability to set custom signal lines wiring (DTS, RXT, DSR, CTS, DCD, RING), emulate connection line break and enumerate Virtual Serial Ports under Windows NT4/2000/XP/2003.
http://www.mks.zp.ua/vspactxd.exe - 1Mb - Download - Screenshot

Serial Port Redirector
Serial Port Redirector is used to connect a serial application to a remote TCP socket. This allows you to utilize modern hardware COM servers without changing your software or exchange data between a TCP/IP application and an old-fashioned program that can only connect to a serial port. ... Serial Port Redirector creates a two-way bridge between a serial application and a specific TCP port at a specified IP address. ... When a serial application connects to one of these COM ports, a connection is established to a specified host and all the data from the COM port gets redirected via the...
http://www.serial-port-redirector.com/serial-port-redirector.zip - 772Kb - 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 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

Virtual Serial Ports Driver
Virtual Serial Port Driver by Virtual Serial Port Software, department of Eltima, is a sophisticated software solution aimed to create two pure virtual serial ports virtually connected to each other in your system. Therefore, without additional hardware installation you may use extra serial... Unlike standard physical serial ports, virtual ports can be assigned any number and you can create as many virtual serial port pairs in your system as you want. ... In comparison with a real port a virtual serial port can be easily configured in accordance with your requirements.
http://www.virtualserialport.com/download/vspdxp.exe - 2Mb - 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

DEKSI Modem Pooling
DEKSI Modem Pooling (DMP) is an advanced, powerful, and feature rich client-server software system that allows you to use any serial (COM) port on a remote computer from your local computer via a TCP/IP network connection. Sharing COM ports means sharing resources like modems, ISDN adapters, X. ... All data sent to these virtual ports is transferred to the DMP Server via a TCP/IP network connection and all replies from the real serial port on the server side are returned back to the DMP Client, so other applications will receive it as if it was sent from a real serial port.
http://www.deksoftware.com/new/dmp.zip - 2Mb - Download - Screenshot

SerialIP Utilities
SerialIP Utilities is easy-to-use package to resolve a problem of remote access to equipment and log all data received from this equipment into files to analyse them in the future. SerialIP Utilities is a software based RS232 to TCP/IP converter. SerialIP Utilities allows any of the RS232 serial... Transfer data from serial ports to other serial ports between remote or local computers 5. ... Give any number of users to have an access to each serial port simultaneously 6. ... Save information received from serial port into file on a disk of remote or local computers 3.
http://www.fogsoft.com/download/SerialIP_Utilites_Setup.Zip - 1Mb - Download - Screenshot

Eltima Serial Port Monitor
Serial Port Monitor is a professional application for RS232/422/485 COM ports monitoring. It monitors, displays, logs and analyzes all serial port activity in a system. It can effectively be used for monitoring serial data exchange between serial devices and any Windows application, debugging... Serial Port Monitor supports all COM-port types: standard on-board ports, extension board ports, SERIAL-via-USB adapters. ... It can monitor any software/hardware that works with a serial port, intercept and record all serial input/output control codes (IOCTLs), tracking their full details and...
http://www.mks.zp.ua/serial_port_monitor.exe - 3Mb - Download - Screenshot

Serial Port ActiveXControl
Serial Port AX Control is a powerful ActiveX component that can be used to simplify communication with external devices on rs232 connection. This includes modems, bar code readers, PBX or any other devices that have a serial interface. Serial Port AX Control 2. ... 0 introduces an impressive number of new properties for detailed setting of serial port, numerous new methods and events to control serial port state changes. ... This professional Serial Port component is compatible with Microsoft Windows 95/98/NT/ME/2000 & XP, Microsoft Visual Basic 5-7, Microsoft Visual C++ 5-7,...
http://www.virtualserialport.com/download/serial_activex.exe - 866Kb - Download - Screenshot