How to prevent a computer from locking out despite idle settings?

Hi,
I have a dilemma that i would appreciate any help.
I have a security cam computer, that like all others has a policy to lock itself every 15 min. obviously this computer is in the domain but is pretty much used only as a monitor, there is someone watching it 24\7 and it becomes a problem where there's no activity but it's suppose to stay unlocked.

I want to create a condition using a program\script or any other tool that would mean - As long as program X is running, the computer won't go to idle.

any ideas?
johnnyjonathanAsked:
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Ashok DewanFreelancerCommented:
To disable Lock:

Under HKEY_LOCAL_MACHINE\SOFTWARE \Microsoft\Windows\CurrentVersion\Policies\System, create a new DWORD value named DisableLockWorkstation and set value to 1.

Then restart the computer.
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johnnyjonathanAuthor Commented:
Thanks Neil. but that would mean that the unlock will be disabled all together, i'm looking for a way to have it locked only if a specific program isn't running on the computer
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McKnifeCommented:
Hi.

The lock will only happen if the screen saver kicks in. To prevent the screen saver, write a schedule task that runs a batch every 14 minutes that sends a message to localhost every few minutes if the monitoring process (the executable of the software) is active.
Like this:
tasklist |findstr iexplore.exe && msg * ie is active, screen saver stopped

To close the message boxes, simply use a switch for a short displaying time:
tasklist |findstr iexplore.exe && msg /time:1 * ie is active, screen saver stopped.
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johnnyjonathanAuthor Commented:
Accepted, works great!
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McKnifeCommented:
Sorry, WHAT works great, mine or his? I suppose you selected the wrong solution :)
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