When first run, the program will create a hidden settings.ini file in the same folder as the executable.
This file contains the OU that the program will read from for user accounts and is encrypted.
To change the OU, run the program and choose File/Change OU.  Only members of the "Domain Admins" security group are allowed to authorise
and change OU.  

You can either type part or all of a name in the search box, or just hit search to scan the whole OU.  Select a name and press the > button to load
the users details.  Change the parts you want and press the update buttons.  Resetting the password resets it to a default of "password" with change on next logon enabled.

Any problems, PM me on EduGeek (MK-2)