What is CodeDOM and why should i care?
CodeDOM is a super simple way of compiling .net code from within another .net application - you should care because if you want to make a Rat or a keylogger (etc) then this is how you (Should) do it...
What does it look like?
that's for you to look for, just dig through the source and you'll find the fun bits
here is a little GIF of a program
Where can i get the simple example you were talking about?