admin rights to specific files

I'm writing software to control machinery in my company's manufacturing
plant. I'm using a third party dll that allows access to the computer's
hardware. Three files are required: the dll, a .sys file and a .vxd file.
These reside in Windows / System folder.

The problem I'm having is that the dll will not respond unless the user has
full admin rights on the computer. This is understandably unacceptable to
the IT dept. I'm not saavy in Win XP security features, so I'm asking you
guys if there's any way to allow full access to specific files in that
directory without compromising the entire machine?

Thanks


.

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