The Policy Type Editor for Preferences removes much of the complexity from the process of updating preferences.
With the Policy Type Editor for Preferences, any Portal Managed Client (PMC) client application that requires centrally administrated preferences only needs to provide the XML Preference Set/Policy Type definition which defines one or more preferences. This template is then imported to the Policy Type Editor for Preferences. No additional code is needed.
As a developer, you are responsible for writing an XML template defining a Preferences Set / Policy Type to be managed, including a definition of the preferences, appropriate user friendly labels for displaying the preferences, and any information that the GUI would use to restrict and/or validate data entered for the preferences.
Parent topic: Using the Managed Settings framework: XPD622