At my school we have about 25 eMacs in the music room, and they arent very well implemented into the rest of the school system of windows computers. they connect to the internet, but students cant log on in their own user accounts. There are two accounts on each of the computers; teacher and student. These macs are pretty much stock standard, so they have games, MSN etc available for them to use. I found a unix script in Macworld magazine, which changes who can do what with programs. Below, i use iChat as an example: Code: sudo chmod o-x /Applications/iChat.app/Contents/MacOS/iChat This script works fine, but the problem is, if i was to do that at the school, i would have to write that script for every single app on every single computer. So here is my idea; can someone write that script with a front end on it? I was thinking the user could select an app which they want permissions changed on, select what type of permission they have (read, write, open), and the program would do the rest for you. Thanks in advance EDIT: I forgot to mention that know nothing about writing in most languages. Im only really starting to touch on unix.