Greg, The memory leak is in the underlying C library, not in the C++ layer. It only occurs when opening netCDF-4 files, not equivalent netCDF-3 files, so it might even be in the underlying HDF5 layer, but that seems unlikely. We'll continue to investigate ... --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: ZBS-432143 Department: Support netCDF Priority: Normal Status: Closed