A seperate download is not required to activate the add-on. To activate the professional add-on, you must follow the steps below. Professional Add-On Activation Instructions. Download the OBDwiz software here and get detailed setup instructions. OBDwiz Windows PC software is included with your OBDLink® scan tool purchase. When you search for Obdwiz License Key Serial, you may sometimes find the word 'serial' in the results. A serial number can also be referred to as an Activation Code or CD Key. All retail software uses a serial number or key of some form. Serial means a unique number or code which identifies the license of the software as being valid.
