The biggest and only difference, is that meshes are automatically loaded into Messiah from 3DC with no extra steps. Just send back to original app from 3DC and it will load. Attached are the download links. Enjoy!
Thank you Greg for having the foresight to develop v4.5 and v5 of the plugin at the same time, very cool!
Details for the plugin are in this thread. http://www.3d-coat.c...?showtopic=7022