Windows Installer (Windows XP/2003) 4.5

Windows Installer (Windows XP/2003) 4.5 is a very considerable in degree installation and configuration service.

WindowsInstaller-KB893803-v2-x86.exe is the redistributable package for installing or upgrading Windows Installer.

Major Features:

1. 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.
2. The previous naming convention, INSTMSI.EXE, will no longer be used.
   

Enhancements:

• Custom Action Execution On Update Uninstall-This feature enables an update to add or change a custom action so that the custom action is called when an update is uninstalled.
  
• Shared Component Patching Resiliency During Uninstall-This feature makes sure that the most recent version of a component is available to all the products.
  

Requirements:

• Supported Operating Systems: 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
• Windows Installer 3.1 Redistributable supports Windows 2000 with Service Pack 3 or later, Windows XP, Windows XP Service Pack 1, Windows XP Service Pack 2 and Windows Server 2003. Windows Server 2003 Service Pack 1 contains Windows Installer 3.1 and therefore can't be installed or upgraded by this redistributable.