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Robo, The netcdf.tar.gz file is for building a netCDF library and utilities from the program sources in C, C++, and Fortran. It is easy to build on most Unix systems, but requires more expertise on a Windows system to build the necessary libraries from source. The other files I mentioned: > ftp://ftp.unidata.ucar.edu/pub/netcdf/contrib/win32/win32_ifort_dll.tar.gz > ftp://ftp.unidata.ucar.edu/pub/netcdf/contrib/win32/win32_pgi_dll.tar.gz have libraries (DLL's in Window terminology) that have already been compiled for particular Windows Fortran environments. Some people have reported that it is easier to install and use these compiled libraries than to try to build netCDF libraries from the original sources, at least on Windows systems. If you want to try to build Windows libraries from the sources instead, please see the instructions for building under the MinGW or Cygwin environments in this guide: http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-install.html#Platform-Specific-Notes Otherwise, for more specific instructions about how to install and use the DLL compiled libraries, see these instructions: http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-install.html#Windows If you still have problems, send us information about what doesn't work, but you may have to wait until our Windows expert returns from vacation to get answers. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: XPX-494461 Department: Support netCDF Priority: Normal Status: Closed