Importance

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Abstract

A media server in a Universal Plug and Play (UPnP) network includes a resource sharing service to govern the distribution of media resource information to rendering devices. The media server includes: a media service module operating in a clamped down user context (e.g., a local service user context) and configured to share resource information over the network; a supplemental module operating in a local system user context and configured to assist the media service module in sharing resource information over the network; and a control panel module operating in a logged on user context and configured to interact with a user via a user interface display. The local system user context provides a higher level of access to media server resources compared to the clamped down user context. The media server also provides fast user switching (FUS) functionality that allows multiple users to have respective instances of the control panel module pending at the same time. Further, the media server includes a mechanism to prevent rogue applications from masquerading as the control panel module and thereby gaining unauthorized access to the media service module.

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First Claim