Hi Everyone,Only recently have I started to encountered a certain problem in ArcHydro when excecuting Flow Direction.System.Runtime.InteropServices.COMException (0x800040005): Error HRESULT E_FAIL has been returen form a call to a COM component. at ESRI.ArcGIS.Geoprocessing.GeoProcessorClass.Executre(Strin Name, IVariantArray ipValuyes,ITrackCancel PTrackCancel) at ESRI.APWR.ApHydro.ArcHydroOp.FlowDriection(ApLayers&aplaters,ITrackCancel, trackCancel, IGPMessage messages, String&exMessage) in C:\Projects\10_Final\ArcHydroTools\src\ApHydro\ArcHydroOP.vb:line 53740
ArcHydro has worked for me without problem before so I am hoping there is some simple solution that I am overlooking. Johan
