When you create an Installer for your product, you can select Run-Time Engines to include with it.

Select in the list on the left which Run-Time Engine(s) you want to include with your installer and click the "Right Arrow" button to add them in the list on the right.

Type a keyword in "Search String" and press "Enter" to help you finding the right installer.

Use the "Left Arrow" button to remove an installer from your selection "right list)

You can define the order of installation of  selected installers by moving them in the list on the right (drag and drop)

Click "OK" to add the selected NI Installers to your product installer.

When you include a Run-Time Engine in a product installer, BLT downloads the file from National Instrument's website on your computer and keep it for future use in the BLT installation directory