HW Virtual Serial Port allows creating virual serial port drivers.
VSPE is intended for engineers and developers to create/debug/test applications.
HHD Software, Ltd.
It allows you to create virtual serial ports and emulate their behavior.
Free, unrestricted Virtual Serial Port driver for any TCP/IP devices.
ELTIMA Software GmbH
VSP ActiveX is capable of creating ports that will emulate real ones.
Virtual serial ports look and work exactly as real hardware serial ports.
A DSLR Interval Timer using the parallel port or serial port of your PC.
Advantech Equipment Corp.
A gang programmer, which works through your PC's USB port or parallel port.
Hot Time Software
It's a software for the printer and parallel port.
The BasicX Programming Environment uses the PC parallel port for the BX0.
ScopeOnPC is a free software that uses the PC parallel port.
This module encapsulates the access for the parallel port.
SoftCollection Impulse Counter supports up to 12 counting processes via single Parallel Port.
Link two computers together using a parallel port cable.
This is a programmer for Atmel AVR microcontrolers that uses PC parallel port.
The Flash MC Programmer I is a fast parallel port programmer.