If your computer does not have a serial port, or the serial port is not enough, you can use the Virtual Serial Port Driver to add any port number. Virtual Serial Port Driver is a fancy virtual serial port tool developed by the well-known software company Eltima, referred to as VSPD for short, is the leader in virtual serial port software.
Virtual Serial Port Driver supports fast code debugging, adding unlimited virtual serial ports, real-time virtual serial port data transmission monitoring, and other functions. It can create any port number you want to use. Under normal circumstances, there are only two ports on the computer, but Virtual Serial Port Driver can help you lift the port restrictions. Its purpose is to simulate the RS232 serial port connected through the virtual modem cable using the virtual serial port driver. This driver can Easily include in your software, providing a simple and powerful way to create and configure virtual serial ports directly from your application.
With VSPD XP, you can create any number of pure virtual serial ports in the system and connect them in pairs via virtual null-modem cables without occupying the virtual serial ports. It is a very easy-to-use virtual serial port tool. If you often need to use a virtual serial port and do not want to change the port, this software is your best choice.