by AGG Software The program emulates one or couples of RS-232 serial ports connected via virtual null-modem cable. It is possible to create the unlimited couples of virtual serial ports on a single PC and connect them in any sequence using virtual null-modem cable.
by Virtual Serial Port Software Virtual Serial Port Driver by Virtual Serial Port Software, department of Eltima, emulates two virtual serial ports with real serial port functionality, including baud rate, data bits, and allows connecting two applications via virtual serial ports.
by ELTIMA GmbH Virtual Serial Port ActiveX CE is a powerful advanced ActiveX Control for Embedded platforms that allows your software to create custom additional virtual serial ports in Windows CE system and fully control them from within your own program.