Straight from the help file, so yes you have it more or less right...
The MapSource Product Creator (MPC) software allows for the creation of a MapSource product from a collection of user-provided raw map data files in DXF and/or ESRI Shapefile format. MPC is currently able to build maps with the following features:
Automatic Route Calculation and Turn By Turn Guidance (requires Shapefile input).
Street Address and Intersection searches over multiple maps simultaneously (requires Shapefile input).
Point of Interest (POI) searches over multiple maps simultaneously.
Business contact information for POIs such as Address/Phone Numbers (requires Shapefile input).
MapSource locked products (entire product is locked under one unlock code).
Road locking support.
Polygonal shaped detailed maps.
Packing embedded Digital Elevation Models (requires BIL file input).
Maps with customized line, point and area feature display.
Maps with customized feature type descriptions.
Road sign information for impoved autorouting guidance.
Real time traffic information.
Marine Features.
Products with multiple unlock regions.
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