[ESS] R: R: Xemacs icons are not shown on win2000

[Richard M. Heiberger]

In gnuemacs, you need to associate file extensions with gnuclient or emacsclient
to get the file to open in an existing instance of emacs.  On windows, at least,
associating a file extension with emacs itself opens a new copy of emacs, instead
of a new buffer in the already open emacs.  The *client programs do the right
thing to make the file open in a new buffer in the existing instance of
emacs.  These programs will work with xemacs.

Rich