Thank you catymag for the reply. Just wanted to confirm that I understood that the key work there is "create". Therefore, since the (already created) individual map files within the gmapsupp.img have previously been made routable, they will still be routable when GMapTool splits them. Then GMapTool can use any version of cGPSMapper (Free or Routable) since it is only used for creating the additional files needed so the individual map files can be used by MapSource.