Mysterious Opening of Applicaitons in Limited User  Mode

I manage a computer lab at a university. We have recently purchased a 17 inch iMac (late 2006 model, 2.0 GHz)
I limited the student's mode so that they can only access "Appearance, Dashboard & Expose, Desktop & Screen Saver, Dock, International, Security, Keyboard & Mouse, Print & Fax, Sound, .Mac, and Universal Access" in the control panel. I used the administrator's "Account" to give this limit.
I don't know what students did, but on some iMacs, when you boot up the iMacs, some applications launch by themselves. On some iMacs, it's MSWord, in some, it's Safari and MSWord. in some, it's Firefox, and Safari. etc.
I checked the administrator's Login Items. Only iTunesHelper is set to automatically launch. Students' shouldn't be able to access here anyhow
I also checked /Library/LaunchAgents and LaunchDaemons (administrator's account) just in case something is there, but these are empty.
I cannot figure out how those applications are set to launch themselves when you login to the student's (limited access) mode.
Any assistance is appreciated.

Assuming that you aren't attempting to restrict application use, it is likely that the students are using the "Open at Login" contextual menu item in the "Dock".
The "Parental Controls" in "OS X Client" that limit access to preference panes only restrict access to the panes themselves, not necessarily to the user settings which they configure. A restricted user with access to alternative methods to modify the configuration files, either via GUI or by directly editing the file, can change things at will.
One thing that might help is to configure "Login Items" using "Workgroup Manager.app", which is included with the "Server Admin Tools" which can be downloaded (free) from Apple. It can be used to configure "Login Items" on a stand-alone "OS X Client" Mac, such that control is exerted from 'mcx_settings' instead of the user's own plist files, which should block the effects of the "Dock" contextual menu.
http://www.apple.com/downloads/macosx/apple/macosx_updates/serveradmintools1047. html

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    Thanks in advance,
    Jack
    Edited by: 797805 on 9/06/2012 04:15

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