Regwrite problem

Hi All
 
I am busy with a program to do a hardware and software audit of the company
assets.
 
Part of this means that a company asset number must be recorded as well for
each PC and printer.
 
I can get monitor and pc serial number, models, etc. Of course the asset
number will be have to be entered manually
 
I created a Gui to easily record these asset numbers. I then want to write
it to the registry, if I in future have to re-audit, I can query the
registry.
 
For the PC base this will work fine but for the monitor, I would compare the
previously recorded serial number to the value read, which should tell me if
the monitor was changed since the previous audit.
 
Sounds easy? I write to the registry, this can then be verified, all ok. On
rebooting the PC, the entries are all wiped out!
 
I am writing to "HKLM\Hardware\AUDIT", any ideas why this happens and how I
can overcome this problem?
 
Regards
Gert


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