ArcGIS Explorer Desktop is a GIS viewer that gives you an easy way to explore.
ArcGIS Engine is a complete library of embeddable GIS components for developers.
It adds projections and geotransformations for use with ArcGIS Explorer Desktop.
You can view an image service using various client applications.
GTP for ArcGIS the functionalities of ArcGIS to more than 90 raster formats.
