1. A method of enabling a feature among a plurality of features in a diagnostic application loaded on a set-top box in a cable system, the set-top box located remotely from a head-end in the cable system, the method comprising: receiving at the head-end a data profile request, comprising at least one feature to be enabled in the diagnostic application, from the set-top box, the set-top box having loaded thereon software for implementing one or more of the plurality of features of the diagnostic application; in response to the data profile request, sending a data profile from the head-end to the set-top box, the data profile including a profile key to identify the set-top box, an application identification to identify the diagnostic application, and a feature selector, wherein the pre-loaded diagnostic application uses the feature selector to newly enable the one or more features of the diagnostic application.