Hi Girish, It looks like the URL you used is missing a "/" character, try this instead: ftp://ftp.unidata.ucar.edu/pub/netcdf/contrib/win32/netcdf-3.6.1-beta1-win32dll.zip Sorry about that, the "/" character is also missing from the document you found at http://www.unidata.ucar.edu/software/netcdf/docs_beta/netcdf-install.pdf as well as http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-install.pdf We'll get those fixed. --Russ