You are going to need to log onto each of your PCs and run keyfinder
(
http://www.magicaljellybean.com/keyfinder.shtml) on each machine.
That will tell you what keys are used. Compare that list with the keys
on the boxes. That will tell you which keys are used and which are
not. You don't need to "punch in zillions of number until the right
one is found".
BeachBum said:
That's all fine and dandy. I have key finders. That does not even
come close to answering my question. Let me simplify with this
example. If a person has 3 copies of OfficeXP in a stack and 2 of
those copies have already been installed and activated, how can a
person know which one of those 3 has NOT been activated for the 3rd
install?
Yes, one could sit there and punch in zillions of numbers until the
right one is found. I don't wish to waste my whole day doing that.