win32


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I am assuming that your win32 environment uses GNU compilers of version 6 or (later). You can check your version by typing
gcc -v

Several patches are required for gcc/gfortran 6 to make NWChem 6.6 to work.
http://nwchemgit.github.io/index.php/Download#Patches_for_the_27746_revision_of_NWChem_6.6

http://nwchemgit.github.io/download.php?f=Gcc6_optfix.patch.gz
http://nwchemgit.github.io/download.php?f=Txs_gcc6.patch.gz

By the way, there is now a third option available for running NWChem on Windows 10 (other than cygwin and mingw), that is
Windows Subsystem for Linux (WSL)
I strongly recommend this option since the installation is no different than any linux install

https://msdn.microsoft.com/en-us/commandline/wsl/install_guide