If you do not provide a product key during Microsoft System Center 2012 App Controller installation, App Controller is installed as an evaluation version. If you later decide to upgrade to a licensed version and therefore rerun Setup, the “Upgrade from evaluation license” link is not displayed as expected.
For more details and a resolution, please see the following:
KB2908312 - You can't upgrade from an evaluation version of App Controller to a licensed version (http://support.microsoft.com/kb/2908312)
J.C. Hornbeck | Solution Asset PM | Microsoft GBS Management and Security Division
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