MapExport to SHP creates an empty file When you use the MAPEXPORT command to export to an ESRI Shape file (*.shp), the resulting SHP file is empty. The Export dialog box used when exporting to a SHP file is missing the section that allows you to select the Object Type (Point, Line, Polygon, or Text). 
Even if you pick objects from the screen or use the Select All option, the objects will be filtered out because the Object Type is not set.
To resolve this problem, download the included MapExport.ini file and copy it to following folder on your hard drive:
(XP) \Documents and Settings\All Users\Application Data\Autodesk\C3D 2010
(Vista) \Program Data\Autodesk\C3D 2010
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