I"m trying to map a local path to, say the G: drive letter so I can access that path using G:.
E.g., something like g:\ -> c:\some Dir\
Doesn't subst G: C:\Some Dir
work any more in Win8?
Of course, you should be able to accomplish the same via Win Explorer as well:
But this works only in case of a Network Path and not a Local one.
You will first need to share the folder, then you can map it in explorer as in Karan's answer or use
net use Z: \\yourpcname\foldername
you need use vSubst utility to acheive the same.
download vSubst utility from below URL : http://home.datacomm.ch/t.bigler/s04.html)