When it comes to patching an application, Windows Installer only updates the files affected by the patch, thus reducing the patching time. Windows Installer does that in a single transaction that integrates the installation progress, rollback and reboot. In addition to that, you do not have to install packages one by one and reboot the machine after each installation. So in case not all packages are successfully installed or you choose to cancel the installation process, Windows Installer can roll back all the changes and restore the operating system to its original state. It uses a chainer to integrate packages in a transaction with multiple components. One of the most important capabilities of Windows Installer is Multiple Package Transaction. It provides the backbone for installing and uninstalling software on the operating system. Microsoft Windows Installer is a redistributable system component that enables software developers to enjoy the benefits of a better application deployment.
