![]()  | 
                    
                         This document is archived and information here might be outdated. Recommended version.  | 
                
| ArcObjects Help for .NET developers > ArcObjects namespaces > System > ESRI.ArcGIS.esriSystem > Constants > E > esriExtensionState Constants (ArcObjects .NET 10.5 SDK) | 
Extension availability states.
| Constant | Value | Description | 
|---|---|---|
| esriESEnabled | 1 | Enabled for use. | 
| esriESDisabled | 2 | Disabled by the user. | 
| esriESUnavailable | 4 | Unavailable - not licensed. |