The Free Virtual Serial Port Emulator or VSPE is a program that allows IT engineers and developers to create, test, and debug applications that use the parallel port.
It allows the creation of virtual devices to send and receive data. Unlike parallel ports, virtual devices can be used multiple times by multiple applications. VPSE allows you to share physical data from multiple applications, expose ports to local network, create virtual parallel ports, etc.
I would be great if I could find which one of the dozens of DOWNLOAD links on the page are actually for the VSPE software download!