When developing an information center sometimes not all of the books show as expected or customizations do not have the desired effect. The about.html page can be used to get information about installed plug-ins and help system preferences. If the home page of the help system is
the about page has a url of
Without any parameters the about page shows a list of all plug-ins installed on the system. Parameters can be added to show other kinds of information as follows:
about.html?show=preferencesshows the values of the help system preferences.
about.html?show=agentshows the user agent information from the Web Browser used to read the page.