About model and data exchange with 3rd party solutions: Revit, Solibri, dRofus, Bluebeam, structural analysis solutions, and IFC, BCF and DXF/DWG-based exchange, etc.
You need the add-on for AC9. Add-ons are version specific. I'm not sure where to find older goodies. There might be a link for "ArchiCAD 9 Goodies" in the Help menu.
