The Language Identifiers property further defines the MSI engine's search for installed versions to upgrade. The previously installed version's upgrade code must first match the value specified in the Upgrade Code property. Once a matching upgrade code match is detected, the search can be narrowed by the languages specified and included or excluded (indicated in the Lang Search Criterion property).

Provide the decimal language identifier(s) for the product version that you want to upgrade by doing the following:

1. Click the browse button to display the Select Languages dialog.
2. In the dialog, click the box in front of the language(s) you want to include in the upgrade.
3. Click OK.

You can also type the decimal value(s) in the field. To indicate more than one language, separate the language identifiers with a semicolon.

If you added an upgrade entry to the Upgrade Paths tree by browsing for and selecting an .msi file on your system, the decimal language value for that .msi file automatically populates the Language Identifiers property.