The GDBT is a popular, unsupported extension to ArcGIS Desktop.
DataEast CarryMap is an extension to ArcGIS Desktop.
For users who collect and use GPS data in ArcGIS Desktop.
ProductivitySuite is a powerful set of tools for ArcGIS desktop software.
ESRI / Thomas Emge
A tool designed as a productivity enhancement for the ArcGIS Desktop platform.
TNC Public Tools is a toolset designed for use with ArcGIS Desktop 9.3.
NCI GIS Tools
ColorTool is a plugin for ArcMap™ (part of the ESRI ArcGIS Desktop suite).
Bring your map to life with Scenario 3D the ArcGIS Desktop extension.
GeoLynx CrimeAnalyst is an extension for ESRI ArcGIS Desktop.
ERDAS ECW is a plugin used with Arcgis desktop software.