How to download Autodesk software without the Akamai download manager

Note: this post is now out of date. AVA no longer provides the facility mentioned here. Instead, it tries (and fails) to be clever. For reasons beyond my understanding, Autodesk chooses to make life difficult for customers and prospective customers who want to download its products by imposing the use of a download manager (DLM) by Akamai. You really don’t want to let such a thing loose on your system even if it works, for reasons that have been explained in previous posts. Until a couple of years ago, Autodesk allowed prospective customers to get at a direct download link …