I think this means the application is ready to use as soon as you open the box.

http://www.filenet.com/English/Products/Panagon_Products/003...
Comprehensive 'out-of-the-box' functionality
The out of the box web application provides immediate access to your documents with a complete set of document management functionality. Maintaining the look, feel and key capabilities of FileNET's Windows-based IDM Desktop, the PWS client enables your entire extended business organization, including partners and customers, to quickly access the content they need.