Thanks to Andrew Cohen who pointed out that a modification to the workshop-supplied elisp file eserve.el is needed to get Sun WorkShop back in the XEmacs v21 toolbar and tools menu. Currently eserve.el (/opt/SUNWspro/WS4.0/lib/eserve.el on my system) checks for only XEmacs version 19 or 20, not 21. Allowing version number 21 fixed things: *** eserve.el~ Thu Apr 23 17:17:38 1998 --- eserve.el Thu Apr 23 17:18:06 1998 *************** *** 42,48 **** (defvar running-xemacs nil "t if we're running XEmacs") (defvar running-emacs nil "t if we're running GNU Emacs 19") ! (if (string-match "^\\(19\\|20\\)\..*\\(XEmacs\\|Lucid\\)" emacs-version) (setq running-xemacs t) (setq running-emacs t)) --- 42,48 ---- (defvar running-xemacs nil "t if we're running XEmacs") (defvar running-emacs nil "t if we're running GNU Emacs 19") ! (if (string-match "^\\(19\\|20\\|21\\)\..*\\(XEmacs\\|Lucid\\)" emacs-version) (setq running-xemacs t) (setq running-emacs t)) I've sent a report about this to Sun, and maybe a note in the XEmacs distribution is in order as more people are likely to encounter this problem once v21 is released to the world. My original problem description follows: "The only problem I have is that "Start Workshop" is not available under the Tools menu and the "WkShop" icon doesn't appear in the toolbar despite the fact that I compiled --with-workshop=yes."