Yes but you have to run minilogin and then put new users into the database along with the IP they will be using manually. If their IP changes alot, it will become a pain to maintain. There is no automatic way to get them into your system unless you write a custom PHP page to add them to your system or allow them to change thier ip.
These instructions tell you how to setup a server and minilogin (near the end of the instructions).
http://www.eqemulator.net/wiki/wikka.php?wakka=Windows6
That should get you going.