This software enables the creation of two virtual serial ports that are linked through a virtual null-modem cable.

You can test this feature by running two HyperTerminals or any other Windows terminal programs and connect one of them to COM5 and the other to COM6. By doing such, everything you type on the first terminal will appear on the second one allowing you to transfer files, other data, or do whatever you want as if it was real serial ports.
The VSPD allows users to connect one application to another using virtual serial ports pair. Moreover, all applications will be able to exchange data. This software is particularly useful for GPS simulation programs, where data transfer plays an essential role.
Some of the features of this software include full serial port software emulation, an unlimited number of virtual ports pairs, installer/uninstaller provided, instant data transfer between ports, and a pure, highly optimized C++ driver code.
Lastly, users can download the trial version of VSPD for a 21-day trial period.
Version 3.0: N/A