The Virtual Serial Port 8 (VSP) is a software solution developed by Eltima Software that enables you to create virtual serial port pairs on a Windows system. These virtual ports act like physical serial ports, allowing you to connect applications or devices that need to communicate via COM ports without using actual hardware.

With VSP 8, you can create virtual serial ports, connect them together, and use them for communication, much like real hardware serial ports. This tool is commonly used for software development, testing, and simulating serial communication between applications, or when you need to replace physical serial port hardware in a virtualized or remote environment.