Note: Please ensure you are using the correct product key for the Autodesk product and version you are installing. With newest release of Autodesk 2016 products, we bring you a new list of products keys.
Product keys are required for installation of Autodesk products and are used to differentiate products that are both sold independently and as part of a product suite. The 2015 delivers better performance, better workflows, new modeling capabilities and a WYSIWYG environment.