Description:

The Microsoft Windows Installer is an application installation and configuration service. It is used to install .MSI files. Instmsi.exe is the redistributable package for installing or upgrading Windows Installer.

System requiments:

Windows Installer 2.0 Redistributable for Windows NT 4.0 and 2000 supports Windows NT 4.0 with Service Pack 6 or later and Windows 2000. Windows XP contains Windows Installer 2.0 and therefore can't be installed or upgraded by this redistributable.

For Windows 95, 98, and ME see Windows Installer 2.0 Redistributable for Windows 9X.