XP will overclock it, Brother Man. If my memory serves me, it won't run on any computer over Win95 OS. Your customer should either search Ebay for someone selling Bysoft version 6.3 with dongle or USB key. Downside is that the key may be burned out or corrupted and then they will be down. Bystronic MAY be willing to let them trade up and get a discount. That was the policy for a time. The customer should talk to their area salesman and see if he can pull some strings to facilitate the transaction...IF POSSIBLE. Bystronic stil may say no and force them to purchase the latest version governed by license managing software.
-HR