ActiveComport Serial Port Toolkit 

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.
serial port serial port modem modems com comport com port asynchronous rs-232 script scripts tool

CPS Plus 

CPS Plus serial data acquisition software enables serial devices like bar code scanners, magnetic stripe readers, gages, electronic scales, sensors, laboratory instruments and modems to communicate with any Windows application.
rs232 rs-232c scanner reader scale gage balance serial barcode bar code data acquisition software wedge