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. You can use this system as device interface testing tool, modem data transfer viewer and so on.

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Eltima Serial Port Monitor
Serial Port Monitor is a system utility for exploring the way OS works and monitoring how applications use ports. It can effectively be used for monitoring serial data exchange between serial devices and any Windows application, debugging computer... more info download

Serial Port Sniffer ActiveX Control
Serial Port Sniffer is a powerful advanced ActiveX Control that allows your application to sniff (fully monitor and edit data flows) serial port in your system. Serial data streams can be easily monitored and edited directly from your application. more info download

232Analyzer
Serial Port Terminal Monitor Tester Converter: RS232 RS485 RS422 TTL Modbus PLC more info download

Serial Port Control
Serial Port Control is an inexpensive royalty-free ActiveX component. You can use it with any ActiveX-enabled development environment. Just put it on a form and you've got all the functionality you need to access an RS232 port. more info download

Network Serial Port Kit
Network Serial Port Kit allows you to connect any serial port devices over TCP/IP network or Internet. Program creates and connects up to 254 virtual serial ports at a time. Physical COM ports can be connected over the network as well. more info download

Serial Port Splitter
Serial Port Splitter allows to share dataflow of one COM port between several applications or vice versa to join dataflow of several COM port devices to one application. Such program universality is achieved by means of virtual serial ports... more info download

Advanced Serial Port Monitor
This unique serial port monitoring & data handling solution allows developers focus on their task. It can operate in manual, automatic and spy modes enabling developers monitor all data received from and sent to a COM port. Download FREE trial now! more info download

Virtual Serial Port ActiveX Control
Create virtual serial port directly from your application and work with it. Full serial port software emulation. Created virtual serial port looks like real serial port for other Windows applications. Compatible with VB, VC++, C++ Builder and Delphi. more info download

Share Serial Ports
Share Serial Ports creates virtual serial ports in your system that appear as copies of real ports and allows you to share real serial ports between multiple applications. All applications will be able to receive and send data to serial port. more info download

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. more info download