Network COM DEVICE DRIVERS (NetCOM) could capture data from physical serial com port to network via TCP/IP. You can access the serial data from network without affect your original serial application software. For example, if you have a device which is connected on your PC's COM1, then you not only can send and receive data to (control) this device via your original serial application software, but also you can send and receive data to (control) it from another PC via TCP/IP network at the same time.