Shp2kml is a stand alone tool that transforms GIS layers to Google Earth. It uses as input the most common format file for GIS (ESRI shapefile) and generates a KML File. Google Earth requires coordinates to be in Lat/Lon and referenced to the WGS84 datum. Shp2kml is able to transform the coordinate system. The input file can be Lat/Lon (Geographic) or UTM (Projected) coordinate system. Also shp2k