Virtual Serial Port Kit creates virtual serial ports and connects each pair of them via a virtual null-modem cable. So, all the data written to one virtual serial port can be immediately read from the other one, and vice versa.
Moreover, this functionality can be easily integrated into your software.
There are two applications which are exchanging data via serial ports. These programs should be connected and a null-modem cable is used for it. There are several problems you can come across:
There are no two serial ports on your PC.
All serial ports are already occupied.
It is necessary to connect several pairs of programs simultaneously and one null-modem cable is not enough.
Using Virtual Serial Port Kit you can emulate unlimited number of serial ports and connect each pair of them via a virtual null-modem cable. So, your applications can exchange data just like they do via hardware serial ports and real null-modem cables.