TCP COM Bridge 

TCP COM Bridge is a utility program that works as an RS232-TCP/IP software converter and allows to forward data from a physical or virtual COM port to an Ethernet network. Using this program, you can turn any computer into a "serial device server." TCP COM Bridge lets you create a connection between two COM ports on two different computers, even via the Internet. This way, you can build distributed data collection systems using legacy software that supports COM ports only.