The software was completely retired in December 2017.
AutoCAD Structural Detailing (often referred to as ) is a legacy software program previously used for structural drafting, steel fabrication drawings, and concrete reinforcement detailing. Critical Status Update: Discontinuation
Autodesk now recommends Autodesk Advance Steel for steel detailing and Autodesk Revit for concrete and rebar detailing. How to Access/Download ASD Today