. Because it has reached its official end-of-life, obtaining or using a serial number today is highly restricted due to the permanent shutdown of Adobe's activation servers. Status of CS3 Serial Numbers Activation Servers Shutdown
, Adobe retired the aging activation servers for Creative Suite 3 (CS3). Original serial numbers found on CD cases or in old emails will no longer work for new installations because the software cannot "phone home" to verify them. Discontinued Replacement Program Adobe Illustrator Cs3 Serial Number
: Adobe Customer Care can no longer assist with CS3 activation, serial number recovery, or installation issues. Where to Find Your Existing Serial Number serial number recovery