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How to disable changing the system date/time programmatically using VB

Does anyone know how to disable the user from changing the system's date and time. I know it can be done via policy, but I can't use that in this situation. My program applies different rights to the system in real-time when the user logs into my program (but all the while only 1 user is logging in to Windows). I can control almost everything about the system, but this one user right is giving me trouble. I know how to refresh the policy once the registry has been changed, but I can't figure out which registry entries to change and to what. Any help would be appreciated. Thanks.

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fostejo

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EDDYKT

Have you check

run gpedit.msc

Local Computer Policy->Computer Configuraton->Windows Settings
->Security settings->local policies->user rights assignment

change the system time

codeconqueror

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eddykt -> I know I can via gpedit, but I need to do this programatically and with only 1 windows user. They log in to windows, open my program and log into my program. When they log into my program, I setup their Windows user rights based on the settings the admin entered into my software (no desktop, no date/time change, no start button, etc...).

fostejo -> I have tried to rename the file, but XP magically pulls it back. I renamed it from TimeDate.cpl to TimeDate.xxx and watched XP re-copy the file after about 20 seconds.

Anyone have any other ideas?

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EDDYKT

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codeconqueror

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errr, not so big a fan of that one Eddykt. I did figure out the following though (from http://www.kellys-korner-xp.com/xp_tweaks.htm):

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"HideClock"=dword:00000001

[HKEY_CURRENT_USER\Control Panel\don't load]
"timedate.cpl"="No"

By making these changes, and disabling access to the control panel (I already had that in the program), I got the effect I wanted. I'll just make the Date/Time right a sub-right of access control panel. Thanks for your help guys.