How to install?

You can use (but it's not manditory) to use DOG as your primary shell. Here
is how: 
comment any lines beginning with SHELL from by adding REM and a spce infront
of the line. Then add tis line:

SHELL=C:\DOG\BIN\DOG.COM -P512

Note that the drive and path may varry according to where you put DOG.
This line will start DOG as the primary shell next time when DOS restarts.

For more information please refer to the dog website at:
http://dog.sourceforge.net/