Multi-Threaded Win32 TTY program provided by Microsoft, originally from 1995!
Referenced in this article: https://msdn.microsoft.com/en-us/library/ff802693.aspx
The original source code was lightly converted to compile with VS 2017.
TCHARs were a quick and dirty solution to most problems, they should be converted to WCHARs, and other string functions converted as well.