Article ID:893803
Last Review:May 13, 2005
Revision:3.0
APPLIES TO
Microsoft Windows Installer 3.1
Microsoft Windows XP Professional
Microsoft Windows XP Professional SP1
Microsoft Windows XP Professional SP2
Microsoft Windows 2000 Service Pack 3
Microsoft Windows 2000 Professional SP4
Microsoft Windows 2000 Service Pack 3
Microsoft Windows 2000 Server SP4
Microsoft Windows Server 2003, Standard Edition
Microsoft Windows Server 2003, Enterprise Edition
Microsoft Windows Server 2003, Datacenter Edition
Microsoft Windows XP Home Edition
Microsoft Windows XP Home Edition SP1
Microsoft Windows XP Home Edition SP2
New features in Windows Installer 3.1
New minor UpdateTargetRTMProperty property: Patch files can now target both the original release baseline and the latest service-pack-level baseline that is on the system.
New MsiSetExternalUIRecord API: Packages that use an external user interface can now receive messages as records instead of receiving the messages as strings.
New x64 and Msix64 properties: Packages can now use the x64 and Msix64 properties to indicate x64 processor-based operating system support.
New MsiNotifySidChange API: You can use this API to upgrade the Windows Installer configuration if the security identifier (SID) of a user changes.
Flyweight patching is now an opt-in behavior: Windows Installer 3.0 introduced new "flyweight patching" functionality. By default, this functionality was enabled for all patches. Windows Installer 3.1 now disables this functionality unless you specifically enable the functionality by setting the OptimizedInstallMode property in the MsiPatchMetaData table.
Available through Windows Update!
http://support.micro...b;EN-US;Q893803