Redistribution guidlines for free Viewer. The free TatukGIS Viewer may be redistributed to others (such as with map data or a map project) under the following rules: Only the most recent product version may be redistributed. Redistribution must be with the full, original setup procedure. Redistribution must be done on a free-of-charge basis. If packaged with map data sold to others, users of the redistributed product must be informed that the TatukGIS Viewer is an unsupported, free product and any user support (which is likely to be data specific) is the responsibility of the map data vendor (not TatukGIS). The free Viewer (unlike the TatukGIS Editor) cannot be customized or extended because: The Viewer does not support plug-ins (customization scripts). The license forbids making modifications to the Viewer.