Howdy! I have added a FAQ about using the DLLs with Windows. Actually I am currently working on getting the 3.6.2 DLL working, and it's a pain! Meanwhile, I hope the FAQ will answer some of your questions: http://www.unidata.ucar.edu/software/netcdf/docs/faq.html#windows You asked about the mod files - those are an F90 thing, right? Thanks, Ed Ticket Details =================== Ticket ID: BYQ-417160 Department: Support netCDF Priority: Critical Status: Closed