The Microsoft Windows Installer (MSI) is the application installation and configuration service for Windows. These download packages will update the version of Windows Installer on your system to version 4.5.
With the Windows Installer CleanUp Utility, you can install the data of a program. This can be useful after problems with the installation or removal of a program. When the installation is aborted a new installation may not succeed. Whether a program is removed, but can still be seen in the window Uninstall a program or change. Windows Installer CleanUp provides in such cases help!