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| ArcObjects namespaces > Location > ESRI.ArcGIS.Location > Classes > S > SoundexTableClassExtension CoClass (ArcObjects .NET 10.4 SDK) | 
A class extension for automatically maintaining geocoding indexes.
Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.
| Interfaces | Description | 
|---|---|
| IClassExtension (esriGeoDatabase) | Provides access to members that initialize and shutdown the class extension. | 
| IObjectClassExtension (esriGeoDatabase) | Indicator interface for object class extensions. | 
| IRelatedObjectClassEvents (esriGeoDatabase) | Provides access to events that occur when related objects are created. | 
| IRelatedObjectClassEvents2 (esriGeoDatabase) | Provides access to events that occur when related objects are modified. | 
| ISupportErrorInfo | Indicates whether a specific interface can return Automation error objects. |