Generate, edit, import or export GeoWeb files. Create and control client-side caches of online GIS servers, convert Google Imaginary data to ArcMap and transfer KML maps to Google Earth and print them. Generate map title caches for a number of services, including Google Maps, Leaflet, OpenLayers, ArcGIS Server and Mapbox.
Arc2Earth 3.1 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the program is Arc2Earth LLC. The most popular versions among the program users are 3.1, 3.0 and 2.1. You can set up this PC program on Windows XP/Vista/7/8/10/11 32-bit. The software lies within Photo & Graphics Tools, more precisely Viewers & Editors.
From the developer:
Arc2Earth is the premier ArcGIS extension for exporting and importing your data into the leading GeoWeb formats. You can import or Export complex KML files, map tile caches or use the new Arc2Earth Data Services to view Google Imagery directly in ArcMap.
You may want to check out more software, such as Panorama Maker, OB WMP11 or Focusviewer, which might be similar to Arc2Earth.