look at any one of the newest conversions by Fabioddq, REV0, others & look in the compress.bat file, you'll soon see where the game dir is entered, as well as some of the other options. Google search would have turned up a ton of pages, all that explains the commandline options. Open the link below & scroll down to see options & explanations for them.
Don't worry its for any earlier version as option descriptions etc still apply.