Hi Venkat, Sorry, but our developer who does Windows is on vacation for a couple more weeks. It's possible that the DLL you got only has the C interface and not the Fortran interface compiled into it. Another possibility is that the DLL was built with a different Fortran compiler than you are using. We make available several versions of a Windows DLL that were built with different Fortran compilers. Where did you get the win32dll.zip you are using? Did you put the DLL in c:\system\win32 ? Are you using the same Fortran compiler the DLL was built with? Also, there is a dsescription of how another user built the Windows version of the libraries from source here: http://wiki.nesc.ac.uk/read/glimmer-project?InstallWindows --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: TSK-113516 Department: Support netCDF Priority: Urgent Status: Closed