VSPD is an efficient software that is able to create virtual COM port and, what’s more, pair it with another virtual serial port via a virtual null modem cable. All ports, created with the help of the app, completely emulate real COM port settings, support HandFlow control and signal lines. This makes virtual communication ports visible to an operating system which recognizes them as “standard” hardware serial ports. Thanks to the app’s exclusive features, all data sent to one virtual COM port immediately appears in the other one and vice versa. Once a virtual serial port pair is created, you can find the ports in Device manager, with them being available for use on system startup even before logging in to the system. On top of that, if developing your own application, you can integrate Virtual Serial Port Driver (get a driver version with API) into your own software, to be able to create and manage virtual COM ports directly from it.