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　　版本号：3.1.4000.2435

　　The Microsoft®Windows®Installer is an application installation and configuration service. WindowsInstaller-KB893803-x86.exe is the redistributable package for installing or upgrading Windows Installer.

　　Note for users of previous versions of the Windows Installer: The new Windows Installer redistributable follows a new naming convention that contains a knowledge base reference so it is easier to identify which version of the Windows Installer will be installed. The previous naming convention, INSTMSI.EXE, will no longer be used.

　　支持的操作系统： Windows 2000 Service Pack 3, Windows 2000 Service Pack 4, Windows Server 2003, Windows XP, Windows XP Service Pack 1, Windows XP Service Pack 2