Install PSGML-DSSSL

Copy the file psgml-dsssl.el into your common site-lisp directory, e.g. C:\Programs\emacsen\site-lisp. Start Emacs and byte-compile the file psgml-dsssl.el by typing Alt-x byte-compile-file [Return] site-lisp-path\psgml-dsssl.el [Return], where site-lisp-path is your site-lisp directory. This creates psgml-dsssl.elc.

Copy the following lines into your _emacs file:

      
      ;; load dsssl support
      (autoload 'sgml-dsssl-make-spec "psgml-dsssl" nil t)