Look through your email archives for a purchase confirmation from Seagull Scientific or a reseller. Physical Media:
BarTender 9.3 is a legacy version of Seagull Scientific's label design software. As a commercial product, it requires a valid, purchased license key for activation. There is no legitimate, built-in feature in BarTender 9.3 to "generate" a new product key. bartender 9.3 product key
Locate the product key card that came with the original software box. Upgrading from Version 9.3 Look through your email archives for a purchase