All you needed was a search of this Autodesk site, it's fair to assume 2012 falls into the listing as well:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=7445175&linkID=9240617
Thank you Dean for your post/contribution. I have marked this as solved due to our technical document you have supplied the link to above. Thank you and I hope this helped in answering your inquiry Mark.
This seems to contradict the general installation notes which claim that "Inventor uses TrueType and OpenType fonts."
http://images.autodesk.com/adsk/files/inventor_2012_readme_enu.htm
Is there a current or planned fix to this bug?