If you have a valid subscription or perpetual license for Inventor 2015, you can still download the installer through your portal under the "View Downloads" section.
The "Dyson" codename for Inventor 2015 brought significant shifts in how engineers approach design: autodesk inventor 2015 portable win64 full
Allows for quick geometry changes to models, even those without a design history or imported from other CAD systems. Improved "My Home": If you have a valid subscription or perpetual