Set the MSIENFORCEUPGRADECOMPONENTRULES property to 1 on the command line or in the Property table to apply the upgrade component rules during small updates and minor upgrades of a particular product. To apply the rules during small updates and minor upgrades of all products on the computer, set the EnforceUpgradeComponentRules policy to 1.

Windows Installer 2.0:  This policy is not supported. This property is available beginning with Windows Installer 3.0.

When the property or policy is set to 1, small updates and minor upgrades can fail because the update tries to do the following that violates the upgrade component rules:

• Add a new feature to the top or middle of an existing feature tree.

  The new feature must be added as a new leaf feature to an existing feature tree.

  In this case, the ProductCode of the product can be changed and the update can be treated as a major upgrade.

• Remove a component from a feature.

  This can also occur if you change the GUID of a component. The component identified by the original GUID appears to be removed and the component as identified by the new GUID appears as a new component.

  Windows Installer 4.5 and later:  The component can be removed correctly using Windows Installer 4.5 and later by setting the msidbComponentAttributesUninstallOnSupersedence attribute in the Component Table or by setting the MSIUNINSTALLSUPERSEDEDCOMPONENTS property.

  Alternatively, the ProductCode of the product can be changed and the update can be treated as a major upgrade.

Requirements

See Also

Properties

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Build date: 8/13/2009