product key

I know that the product key should be on the documentation that came with my windows 2000 disk. However, I have no idea where I placed it. I have looked around my office, in file cabinets, at home in drawers, office folders, records, etc. I have no clue as to where I may have placed it. But as for the product key being on the disk, whoever answered my 1st question saying it was on the disk is wrong. So, once again, if anyone has the windows 2000 25 digit product key, PLEASE LET ME KNOW!!!!!!!!!!!!!!!!