Installing and running NCL under WindowsNCL cannot be run under native Windows. You must run NCL under a UNIX environment.
For Windows users, there are two possible options for running NCL
If you have Windows 10, the Linux subsystem option is the better of the two because it enables you to run a 64-bit version of NCL. If you have an older version of Windows, then your only option is to run NCL under Cygwin/X.