Secondary windows

In addition to the main window, many authors employ "secondary" windows like this one. Secondary windows are often used to display procedural topics so that the user can read help while working with an application.

HTML Help makes it simple to define secondary windows, though you need to be careful to specify the proper window when creating links. HTML Help's windowing is very quirky (the ActiveX control frequently ignores the window type you've specified) but depending on your project may be worth the effort. Click here topic in an external chm to see what Workshop's help has to say.