This property allows to you specify features required by the current feature. For example, suppose your installation program has two features, ProgramFiles and HelpFiles, and you want the user to have to install ProgramFiles whenever the HelpFiles feature is selected.

To arrange this feature requirement:

1. Select the HelpFiles feature.
2. Select the Required Features property and click the ellipsis to display the Required Features dialog.
3. In the Required Features dialog, select the box next to the ProgramFiles feature.
4. Click OK.

At run time, if the user selects a Custom setup type, feature-selection dialog boxes such as SdFeatureTree will not allow the user to deselect the ProgramFiles feature if the HelpFiles feature is selected.