While installing Civil 3D 2012 64 bit, towards the end I've noticed the installer adding in "Civil 3D 2012 32 bit object enabler".
So the question is: Is there a difference in DWGs created by C3D 2012 32bit and 64 bit. If not what's the object enabler doing here?
No different between the DWGs. I saw the same message go by during the install. I don't remember the exact message but it appeared that 32bit C3D OE was needed for SAS (still a 32bit app?)