VCDS Lite 1.2 does not support CAN-Bus vehicles (most VAG cars made after 2006-2008). If you own a 2010 Audi A4 or a 2015 VW Golf, VCDS Lite—even if "fully registered and activated"—will not connect to your car.
: Allows users to change vehicle behavior, such as automatic locking, light settings, or horn behavior. Basic Settings vcds lite 1.2 full registered activated
VCDS-Lite 1.2 is a specialized diagnostic software developed by for pre-2006 Volkswagen, Audi, Seat, and Skoda vehicles that do not use CAN-Bus systems. The "Full Registered" version unlocks critical diagnostic capabilities that are restricted in the free shareware mode. Key Features: Registered vs. Shareware VCDS Lite 1
: Automatically scans all vehicle controllers for fault codes simultaneously, rather than checking individual modules one by one. Full Fault Code Data Basic Settings VCDS-Lite 1