NTXShape is a GIS data conversion tool that translates CARIS NTX interchange files into the ESRI shapefile format. It converts points, lines, polygons, text, spot heights, and soundings, preserving virtually all of the information found in the source data. It includes a command-line interface and a static library.
Additional functionality on Win32 / plans for Unix This was stripped out by the freshmeat editors since we have a UNIX focus here, but I should point out that on Win32 NTXShape includes an ArcView ...