gary's link works fine

when the data was transfered from xara servers to magix, way back when, some of the older program data was lost - there are no serial numbers in my account for programs before version 7

I recall some of the early versions had serial numbers on the back of the CD box, and some inside, worth checking if you have not already done so

if your serial number is not in the account, or you cannot access it, you can contact magix here: infoservice@magix.net

although xara have taken back responsibility for the programs themselves, magix still have responsibility for the site AFAIK, but if you need to you, can contact xara via chat on their website....

if the serial number has been lost you may need your registration email and purchase details to recover it....