1)   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.

 2)   Serial Port ActiveXControl 2.0
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.