Before you think "ha now I can compile OpenKore using these bat files":
DON'T DO IT!

You are not supposed to compile OpenKore unless you have a very good
reason to do so! Every day, people keep coming to the forum asking "how 
do I compile?", "why does compilation fail?", etc. You are NOT supposed
to compile! Save yourself all the hassle and read this:
http://www.openkore.com/wiki/index.php/Running_OpenKore_from_source