UpgradeCode Property

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Specifies a shared identifier that represents multiple versions of an application, represented by a string GUID. This property is used by Windows Installer to check for installed versions of the application during installation.

Caution   The UpgradeCode should only be set for the first version; it should never be changed for subsequent versions of the application, nor should it be changed for different language versions. Changing this property will keep the DetectNewerInstalledVersion and RemovePreviousVersions properties from working properly.

Remarks

This property is set in the Upgrade Code dialog box. Letters contained in the UpgradeCode property must be uppercase.

See Also

Deployment Properties | Upgrade Code Dialog Box | DetectNewerInstalledVersion Property | RemovePreviousVersions Property | ProductCode Property