I have a backup CD of Microsoft Office 2003 which I think I can use to override the trial copy that expired and is installed on my computer. But I don’t have the original envelope. Is there a program I can use to find the product key of a CD if I ONLY have the CD and not the cover? All the programs I can find like ProduKey only can scan what’s already on the computer, but not a CD/DVD in the CD drive…