The map shape files are provided from the BBN OpenMap System.
http://openmap.bbn.com
These are covered by the license for usage provided in the I-X imports directory.

In the OpenMap 4.5.4 package the "map.shp" comes from "openmap-4.5.4\share\data\shape\dcwpo-browse.shp" and the "map.ssx" comes from "openmap-4.5.4\share\data\shape\dcwpo-browse.ssx"

 