Re: I don't have $VIMRUNTIME after installation

[Tim Chase]

I don't have this environment variable.

The user manual makes a lot of reference to it. Help me.

It's define *under* vim/gvim, not outside of it.
Try:
   vim
   :echo $VIMRUNTIME
you'll see it's defined

Vim will respect it if you've overridden it as an 
environment variable by setting it yourself.  But if you've 
not set it in your environment configuration, it will do as 
others have mentioned, and default to its own internal settings.

-tim