How to change the icon in the add/remove programs menu?

Sometimes the icon that is shown in the Windows "Add / Remove Programs" menu is not the intended one for the application. This may change randomly with every install. This is due to Windows automatically picking up the icon of an executable inside the installation directory. To select a specific icon, you can use the productDisplayIcon tag, as shown in the example below.

<productDisplayIcon>${installdir}/sample.ico</productDisplayIcon>