Dos Program print job sent to share printer problem

User A has a Dot matrix printer installed in her LPT1 directly. The printer is shared out for others use. Hence, User A is able to print both windows and dos based prg.

However, user B wish to share n use User A’s printer. After add the printer into user B’s LPT1, user B is able to print windows based prg but unable to print dos based prg…

If you understand the problem and have the solution, pls help me here…