User Interface Editor
Allows you to specify and edit dialog boxes that are displayed during installation on a target computer.
You cannot see the user interface dialog boxes in the User Interface Editor. For more information about each dialog box, see Deployment Dialog Boxes.
To access the User Interface Editor, on the View menu, point to Editor, and then click User Interface when a deployment project is selected in Solution Explorer.
The User Interface Editor contains a single pane with hierarchical list of user interface dialog boxes. The list is divided into two sections for standard versus administrative installations, and each section contains Start, Progress, and End nodes to represent the stages of installation.