Author: MSDN, with slight changes made by CARL R. KNOX on 03APR2014.
The SerialPortComMessager project creates a chat protocol between two computers connected via serial ports.

This code was tested in Microsoft Visual Studio 2013 and can be run directly as a C# application in that IDE.

MSDN source: http://msdn.microsoft.com/en-us/library/system.io.ports.serialport(v=vs.110).aspx