In other words, the HEX interface also acts as a security dongle that controls access to the VCDS (VAG-COM) software. It should be stated that any version of the VCDS (VAG-COM) software higher than VAG-COM 409 (released in September 2004, hence "4", "09"), will not function if it does not detect an intelligent interface WITH A VALID LICENSE on the interface. This allows you to run the VCDS software on any PC and when the software detects the valid license file, it will unlock the VCDS (VAG-COM) software so it can be used. As some of you know, the VCDS (VAG-COM) software license is contained within the memory of the HEX interface. Within the microprocessor are over eight thousand lines of code, that do anything from protocol conversion, updates, controlling K-line and CAN-bus data flow as well as advanced authentication and licensing. It has a USB chip on the one side, to connect to the PC, then K-line and CAN-bus drivers on the other side, to connect to the vehicle diagnostic busses, and a microprocessor in the middle - so to speak, with some other required circuitry. These "cables" are what we refer to as an Intelligent cable.
We started developing the "+CAN" versions in 2004. Now let's look at this "HEX-USB+CAN cable" in a little more detail. The most popular of these is the HEX-USB+CAN interface. That is why their top of the line cables are referred to as the "HEX+CAN Series". Ross-Tech, LLC, the developer of VCDS® (formerly known as VAG-COM) are one of our partners and customers. We are the company that develops the HEX range of interfaces for various aftermarket suppliers of automotive diagnostic tools. For those who do not know, we are the South African company, HEX Microsystems (Pty) Ltd.
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