Windows Installer enables the efficient installation and configuration of your products and applications running on Windows. The installer provides new capabilities to advertise features without installing them, to install products on demand, and to add user customizations. Windows Installer 5.0 running on Windows ServerВ 2012 or WindowsВ 8 supports the installation of approved apps on WindowsВ RT. A Windows Installer package, patch, or transform that has not been signed by Microsoft cannot be installed on WindowsВ RT. The Template Summary property indicates the platform that is compatible with an installation database and in this case should include the value for WindowsВ RT. Windows Installer is intended for the development of desktop style applications. Developer audience. This documentation is intended for software developers who want to make applications that use Windows Installer. It provides general background information about installation packages and the installer service. It contains complete descriptions of the application programming interface and elements of the installer database. This documentation also contains supplemental information for developers who want to use a table editor or a package creation tool to make or maintain an installation. Run-time requirements.