HW Virtual Serial Port allows creating virual serial port drivers.
HHD Software, Ltd.
It allows you to create virtual serial ports and emulate their behavior.
Virtual Serial Port Driver allows creating virtual serial port pairs on a PC.
Serial Port Software
Serial Port Splitter grants simultaneous access to a COM port from several apps.
This app allows you to check the flow of data through a computer's COM ports.
VSPE is intended for engineers and developers to create/debug/test applications.
Barcode scanners can be connected to PC through serial port or USB port.
It is a serial port emulation that allows you to control the USB IO Board.
Remap (redirect) all data sent from one serial port to any other serial port.
Free Serial Port Terminal is a handy and easy to use serial port terminal.
Serial Port Utility is a professional communication software for serial port.
Bill Serial Port Monitor utility is a Serial RS-232 COM ports monitor.
ELTIMA Software GmbH
Virtual Serial Port Driver creates virtual serial ports.
Serial Port Mapper - Assign new names for serial ports.
A DSLR Interval Timer using the parallel port or serial port of your PC.
This plugin opens a Serial Port connection with your serial peripheral .