Use Enhanced User Interface
The Enhanced User Interface improves and extends the controls that you can use when designing the installation interface. You can read more about the requirements and benefits of this options in Enhanced User Interface page.
Always (install, uninstall and maintenance)
Enhanced UI will be used when installing the application as well as when performing "Modify" or "Uninstall" from Control Panel.
This option requires the “Override Windows Installer
programs list entry” option to be enabled in Product Details Tab.
Only on install
Enhanced UI will be used only when installing the application. During "Modify" or "Uninstall" from Control Panel the Windows Installer rendering will be used.
Never
Windows Installer rendering will always be used.
Use custom frame only if Aero Glass is not available
If this checkbox is enabled the custom frame selected in the Themes Page will be used only if Aero Glass is not available on Windows Vista or later, otherwise the Glass frame will be used.
This option is available only if a custom frame is selected for the
currently used theme.
Bitmaps Display
In this section you have the option to specify how the bitmaps will be displayed: with fixed or variable size.
Keep original image sizes
The bitmaps will be displayed with fixed size.
Stretch images to fit their controls
If you want your bitmaps to be stretched or shrunken to fit the controls, use this option.
This option will not affect the installation dialog's appearance if the fonts on the user's computer have normal size.
If the user has modified his / her settings to use larger fonts or smaller fonts Windows Installer will resize the dialogs accordingly. You can choose whether the bitmaps will be stretched when the dialogs are resizing. Unfortunately, the stretch algorithm used by Windows Installer is not very good and may cause slight "corruption" in the bitmaps when applied.
You should test the appearance of the bitmaps you are using in both cases and decide which is preferable in your case.
Use individual control 'stretch' settings
This option is selected by default and it enables you to specify the how the picture will be displayed for each control. The individual settings will be specified in the Dialog Editor.
At least an Enterprise project is required.