Hi, I´m trying to develop a custom geoprocessing tool in Java (from this example http://resources.esri.com/help/9.3/ArcGISEngine/java/doc/b0836d0d-a1af-49cd-ab18-3cc7476f5701.htm). Im new developing ArcGIS extensions. My problem is that I don´t have 'ArcGIS Extension' in 'ESRI Templates' node, so I can´t find 'ArcGIS Extension'. I only have 'ArcGIS Engine Project' and 'ArcGIS Engine Sample' when I expand 'ESRI Templates' node. I think im missing to do something... Another problem is when im traying to build the custom function tool class: I can´t extend from BaseGeoprocessingTool because there is no import available for BaseGeoprocessingTool.