You can use this program to access AutoCAD Civil 3D drawing files.
It allows you to share Autodesk Inventor data with non-Autodesk Inventor users.
It ixes that are in Autodesk Inventor Release 3 Service Pack 1.
This Service Pack 1 updates Autodesk Inventor 2012.
The Autodesk 2006 Object Enabler allows object data created in Autodesk.