Free gather user input 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?

Winput will offer a user an input window for batch processing Winput is a command line program that will offer a user an input window for batch processing. The input string will be inserted into a user defined output string, which can be redirected to a file. For example, you can send a command to a batch file this way, and then run it.
Example:
Winput "SET Name=$input" "Please enter your name" > temp.bat
if not errorlevel 1 call temp.bat
This will send a set statement to the file temp.bat, and after you execute this BAT file, you will have the input string in the environmental variable %name%.
You can produce and execute any other command this way, or you can simply write the input string to a file.
Arguments:
- OutputString: must include the token "$input"; will be sent to STDOUT
- PromptString: text message above input field; line feeds by caret character ("^")
- InitialString: for the input field (optional)
Notes:
The string parameters must be enclosed in double quote marks.
If you need double quote marks inside the OutputString or PromptString,
use two single quote marks (), which will be replaced.
Case ignored for the options and the $input token. All parameters and options must be separated by blank space (no commas!).
The output string comes without terminating CR+LF.