The UpgradeCode property is a GUID representing a related set of products. The UpgradeCode is used in the Upgrade Table to search for related versions of the product that are already installed.

This property is used by the RegisterProduct action.

Remarks

It is strongly recommended that authors of installation packages specify an UpgradeCode for their application.

Requirements

Version	Windows Installer 5.0 on Windows Server 2008 R2 or Windows 7. Windows Installer 4.0 or Windows Installer 4.5 on Windows Server 2008 or Windows Vista. Windows Installer on Windows Server 2003, Windows XP, and Windows 2000. See the Windows Installer Run-Time Requirements for information about the minimum Windows service pack that is required by a Windows Installer version.

See Also

Properties

Patching and Upgrades

Preparing an Application for Future Major Upgrades

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Build date: 8/13/2009