Hi Kevin, Yes, the old version (no longer supported) is here: ftp://ftp.unidata.ucar.edu/pub/netcdf/old/netcdf-2.4.1.tar.Z However your user may not be aware that all the netCDF-2 functions are still supported in all the netCDF-3 or netCDF-4 versions that have been released since. We continue to provide support for old versions of the format as well as the APIs in all current and future releases. So the user might just try linking with the current library to see if the old program works. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: TSQ-821770 Department: Support netCDF Priority: Normal Status: Closed