online Smalltalk/X documentation, which is generated just in time from your running system, can only be displayed with the ST/X document viewer.
If you have the builtIn webServer enabled in your running ST/X system, try this link: http://localhost:8080/ClassDoc.
(If not, start one via the "Settings"-"Communications"-"HTTPServer" Dialog,
or try the service provided by eXept via
http://www.exept.de:8080/ClassDoc.)