Please do not bump threads only for the sake of bumping. If someone know, he/she will post about it.
I personally think the pinned thread I pointed out is enough, but if you want I can also point the
Newbie Guide to DOSBox and if you still need help, I beleive the readme.txt file which come with DOSBox is rather complete.
If afterward you still don't understand, then I would understand that you ask help here. But as far as I understood for now, you did not even read the helpfiles yet.