While the main installer is no longer public, you can still find the ASD 2015 Object Enabler on sites like CADforum.cz
AutoCAD Structural Detailing (ASD) 2015 is the final release of this specialized software. Built on the familiar AutoCAD platform, it was designed for engineers and designers to create precise reinforcement definitions and structural shop drawings. Key Features of the 2015 Version autocad structural detailing 2015 download top