This is the keypatcher which was
able to register many versions of HWiNFO.
When was author of HWiNFO informed about its
existence, he changed encoded bytes but forgot
to change original code. Then The Owl found
the magic numbers.
As far as I know, hwinfo now requires keyfile.
But why to waste time with intelligent solutions,
when you can simply EDUMP (unpack) hwinfo.exe,
then overwrite the right instructions and it's done
(in 5 minutes).