Download Shape2Earth Here. Shape2Earth leverages freely available GIS software to allow the general public to cheaply and easily convert shapefiles into KML for viewing in Google Earth.
Shape2Earth is Shareware. It will run in a limited demonstration mode until
purchased.
Shape2Earth requires:
Google Earth Version 4.x
MapWindow GIS Version 4.4
See how Shape2Earth works at
this on-line users blog http://shape2earth.com