Windows Vista Service Details
Enforcement of DRM and possibly Windows Update. Required for Readyboost which is required for control panel access.
Enables the download, installation, and enforcement of digital licenses for Windows and Windows applications. If the service is disabled, the operating system and licensed applications may run in a reduced function mode.
Consequences of Stopping:
Windows update will likely not work. Control Panel will not work, unless you have found a work around for readyboost.
All services listed in 'Required For' will be unable to function
ReadyBoost, SL UI Notification Service