1)   ActiveComport Serial Port Toolkit 2.0
Serial port toolkit to enable applications or scripts to communicate with a modem or other serial port device. Features full com port control, binary and ASCII data transfer, support for RS 232 and RS 485 standards and ISDN modem support.

 2)   Docklight RS232 Terminal - RS232 Monitor 1.6
Docklight is a test, analysis and simulation tool for serial communication protocols (RS232, RS485/422 and others). * Simulating serial protocols * Logging RS232 data * Detecting specific data sequences * Responding to incoming data

 3)   ActiveComport Serial Port Development Kit 2.1
Serial COM port Communication SDK to add serial communications to your project. Communicate with a modem, scanner, printer or any other serial port device. Samples included for ASP, VB, VB .NET, VC++, VC# .NET, JavaScript and VBScript

 4)   Look RS232 4.3
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.

 5)   Virtual Serial Ports Driver XP2 2.0
Virtual Serial Ports Driver (VSPD) is a Windows device driver. Using it you can create any number of virtual serial COM ports in your system which will be virtually connected to each other via virtual null-modem cable

 6)   CommLog for CE 0.3
CommLog of 5dtool is a freeware used for record and monitor the data from serial port of PocketPC. It would be useful for record data from total station, GPS and other rs232 device connected to PDA.

 7)   Universal Programmer Analyser-UPA 2.3 Lite
4 CHANNELS ANALYSER speed 1-2us, HEX EDITOR, I2C & Microwire Monitor, PROGRAMMER:24c01-24c512, 93c46-86, 25c080-640, 7002, sde2506, 68HC05,PIC12C508, and more...PULSE GENERATOR: 0-50kHz, FREQUENCY METERr: 0-50kHz <1%

 8)   ByteWedge 2.0
Acquire data from electronic devices through an RS232 interface and input it directly into your database, whether it is MS Access, MySQL or any other ODBC-compliant database. Start collecting data in minutes using the visual step-by-step wizards.

 9)   Serial Port ActiveX Control 2.5
Use Serial Port component to easily communicate with external devices on RS232 connection - as modems, bar code readers, PBX etc. Serial Port introduces properties for serial port setting, methods to write/read from port, events for monitoring port.