: This is a unique 25-character code (often in 5 blocks of 5 digits) required at the very start of the installation process. You can only obtain this from your original purchase email, physical box, or your legacy Serif account (if it was registered before the system was shut down). Universal Registration Key (881887)
Since Serif has discontinued the "Plus" range, they no longer provide individual registration via telephone or online forms. Instead, they have released a for all legacy products to bypass the registration "nag" screen: Universal Key: 881887 serif webplus x8 product key free