Purchase a legitimate VCDS Lite license for $99 from Ross-Tech. You get a real serial number, no viruses, and technical support. Alternatively, for modern cars (2005+), you need the full VCDS HEX-V2 ($199).

Here’s a professional, informative write-up for . It’s suitable for a software download site, forum post, or user guide.

VCDS-Lite is a specialized version of the diagnostic software developed by Ross-Tech. Unlike the full version of VCDS, which is designed to work with Ross-Tech’s proprietary "Hex" series of hardware interfaces (such as the HEX-V2 or the older HEX+CAN), VCDS-Lite was created for

: Note that a VCDS-Lite license is locked to a single PC . If you move the software to a new computer, you may be required to purchase a new registration. VCDS-Lite vs. Full VCDS

To use (registered or not), you need a VAG-COM 409.1 KKL cable . These are USB to OBD2 cables.