Before anything else, you should make sure you have the netCDF
DLL. This should be in the win32 directory.
You should put this DLL somewhere on your system path. That's SYSTEM PATH,
not your MATLAB PATH. A decent system path candidate would be
C:\path\to\matlab\bin\win32
You may need to restart your system at this point. This installation
procedure used to be a lot more complicated until I learned about
the rebooting business. Yeah, rebooting and windows, hand-in-hand
for eternity.
C:\path\to\where\you\unpacked\mexnc\in\the\first\place
John Evans: IMCS Rutgers University