Windows are the "containers" that display topics in the compiled Help system. You can control and customize the way your Help system's windows look and act:
Color/images. You can add interest to your Help system by choosing background colors for your Help windows or by using images as window backgrounds (like watermarks, images that appear "beneath" the text).
Size and location. You can quickly adjust the size of a window or the location in which it appears on the screen. For example, you can make Help windows overlap and position them in a specific corner.
Title. Each Help window can contain a title or caption that appears in the window's title bar. You probably want the main window in your Help system to have the title describing the product or subject. For example, if you were creating an employee handbook for the XYZ company, you might title the main window something like, "XYZ Employee Handbook."
Buttons. Buttons on Help windows usually control the actions users can do from the window. They also control the way users move around through topics. For example, the Print button allows users to print the current topic.