I'm in an office with with 11 computers. They have Office 97 installed on 7 machines, but no idea who installed it. I can find only one Office 97 install disk. The Office 97 serial numbers on the machines are identical except for the last group of 5 digits. Are these illegal multiple installs? How can you tell? Also 3 machines with win 98, no install disk. How to tell if they are multiple installs? What would the BSA say about this situation?