Develop custom JavaScript applications to deliver ArcGIS Server services. Use the Geocortex Essentials JavaScript API to supplement the functionality of the ArcGIS Server JavaScript API with Geocortex Essentials' powerful end-user features, such as template-based reporting, print templates and data linking.

Create rich Internet applications with Geocortex Essentials functionality and ArcGIS Server services using Microsoft Silverlight. The Geocortex Essentials Silverlight API provides access to all Geocortex Essentials REST Elements features, complementing the functions provided by the ArcGIS Server API for Silverlight.

Use the Adobe Flex framework to create rich Internet applications that deliver ArcGIS Server services and run in a browser's Flash player. Take advantage of Geocortex Essentials' advanced reporting, printing and data linking features, as well as all the features provided by the ArcGIS Server API for Flex .