Microsoft Windows Installer

Patch sequencer performance improvement pass
MsiLogging and MsiLogFileLocation properties supported down level
Application settings migration support via MSIARPSETTINGSIDENTIFIER
Updated Automation Support with Installer.ProductCode, Installer.CreateAdvertiseScript, Installer.AdvertiseScript, Installer.ProductInfoFromScript, Installer.ProductElevated, and Installer.ProvideAssembly
RemoveExistingProducts now pass UILevel property
Message type INSTALLMESSAGE_FILESINUSE now passes window titles
Windows Installer use of the %temp% folder should work if %temp% folder is encrypted.
Enable browse button in SelectionTree control only if the feature has a public property in Directory_ column
Enable basic UI to show text for language neutral packages
Hidden/disabled cancel button does not allow users to cancel a dialog for authored UI
Billboards are only displayed during script execution, no longer during script generation
The Edit and PathEdit controls now respond to the Reset control event
Credential Free Patching under XP LUA constraint to media lifted to be equivalent to Vista UAC constraints
Ability to disable 64 bit registry reflection at the component level via msidbComponentAttributesDisableRegistryReflection
Schema.msi has been updated with the new tables