Billboards are displayed only in setups that display a background window. A background window is by default not displayed, and does not meet current standards for user interfaces.

Billboards allow you to pass information to your users, or merely entertain them, during the setup process. These bitmap (.bmp) files can tell your customers about new features in your product or point them to support resources. You can display one billboard for the entire setup, or you can include a series of billboards.