A legitimate is a unique string (usually 20-25 alphanumeric characters) generated per purchase. It is not a universal "master key." When you buy a license:
The official developer (often WhiteTown.com or similar vendors) sells a single-user license for approximately . This includes: dbf manager activation code
If you get "Invalid code," ensure you did not confuse the letter 'O' with zero '0', or 'I' with '1'. Copy-paste directly from your purchase email. A legitimate is a unique string (usually 20-25