AnsweredAssumed Answered

iis express worker process has stopped working on any geometric/topologic process on server. fault module name : ExtTopoEngine.dll

Question asked by ibbcbs on Dec 16, 2015
Latest reply on May 23, 2017 by SamANB

Hi. I have been developing arcgis desktop applications for a long time. İ was using arcgis 9.3 for my applications. We upgraded to arcgis 10.3.1 now. But i have an error on my web service(.asmx). When i do any kind of geometric process i get the following iis error.

"iis express worker process has stopped working". error occurs on exTopoEngine.dll

Even this very simple code as below throws this error on topologicOperator.Simplify(); if i skip simplfy, it throws the same iis error on      IPolygon polygon = topologicalOperator.Buffer(1) as IPolygon;.



                AoInitialize init = new AoInitialize();

                if (init.IsProductCodeAvailable(esriLicenseProductCode.esriLicenseProductCodeArcServer) == esriLicenseStatus.esriLicenseAvailable)



                    throw new Exception("ESRI ArcGIS Server License is unavailable or has failed");


                IPoint[] points = new IPoint[5];

                for (int i = 0; i < points.Length; i++)


                    points[i] = new PointClass();


                points[0].PutCoords(0, 0);

                points[1].PutCoords(0, 10);

                points[2].PutCoords(10, 10);

                points[3].PutCoords(10, 0);

                points[4].PutCoords(0, 0);

                IPointCollection4 pointCollection = new PolygonClass();

                IGeometryBridge geometryBride = new GeometryEnvironmentClass();

                geometryBride.AddPoints(pointCollection, ref points);

                IArea area = pointCollection as IArea;


                ITopologicalOperator topologicalOperator = pointCollection as ITopologicalOperator;



                IPolygon polygon = topologicalOperator.Buffer(1) as IPolygon;

                area = polygon as IArea;