Free xp home user manager software for windows

I am teaching CFD (Computational Fluid Dynamics) and also have to manage student access to a dozen of PCs in a classroom. They are all (PCs) running Windows XP now and connected to a local network controlled by the domain controller (which is Windows 2000 server). We have to make about 50 new accounts every start of year, providing user rights, home directories on the file server, etc. Also, those guys never remember their passwords... So I had to go very often to the server room, and do all stuff using Active Directory. To make my life easier, I have made this simple program that allows doing basic things from any Windows PC on the local network. It works basically on LANs with a domain controller, but can be also used to manage users and group on workstations (including local PC). Now, I just start SUAMan, input a user name, select a group to add, and SUAMan creates a user ID based on his name, user home directory within his or her group and? that is.
Frankly, I though it would be much easier to make a program like this. However, MS Windows API is so?, let us say unclear and complicated. The trickiest API I have ever tried using. Having said that, I am not going to blame Microsoft for those things. The task to satisfy all is too complicated. Actually they do a great job and all of us have many chances to enjoy the results in one way or another.
So, if you are a system administrator or a teacher like me busy with similar tasks, why dont you try SUAMan?

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Requirements:

• Windows 95/98/Me/NT/2000/XP/2003 Server/Vista