Autocad 2006 Free Here
While modern iterations of AutoCAD offer cloud collaboration, automated counting, and advanced mobile integration, they all stand on the shoulders of the user interface revolutions introduced in AutoCAD 2006.
This replaced the old MNU and MNS files. It provided a single, centralized dialog box for customizing toolbars, menus, and keyboard shortcuts. autocad 2006
Standardized list creation for construction notes. and advanced mobile integration