This is a common issue for professionals. Chief Architect licenses are generally sold with a limited number of "seats" (usually two: one for the office and one for a laptop/home computer).
: Most "key generators" or "cracks" are prime delivery systems for malware and ransomware that can cripple your workstation. Zero Updates Chief Architect X12 Product Key
For those with older DVD copies, the key is typically found on a sticker inside the plastic jewel case or on a paper insert. This is a common issue for professionals