This article applies to Jet Essentials 2012 R2 and earlier.
Installing Jet Licenses
We have made a change in Jet Reports 2009 regarding the default folder that Jet looks in for the Jet License file(s). Therefore, placing the Jet License File in C:\Program Files\JetReports will no longer work without also specifying the location in the Application Settings. Due to permissions issues with the program files, the default Jet License File location is now %AppData%\Jet Reports\Licenses.
For a full description of installing the Jet License File in Jet Reports 2009 & Jet Reports v7 (in both Excel 2007 & Excel 2003) please see the following URL: http://www.jetreports.com/doc/license-install.html