Abstract: A compliance interface is disclosed that takes in queries from applications which may want to know if they are compliant with associated polices stored on a computing system. The interface can then interpret these queries and provide notifications and instructions to the applications. Notifications may give notice of how a policy may impact an application, and instructions may tell an application how to behave in order to stay compliant with the policies. In one aspect, the interface exposes policies set forth by parents. Via a management control panel, parents can set or alter various policies, stored in a settings store, to protect children from contact with undesirable content. The interface interprets these policies to ensure that applications, such as those provided by third party vendors, are compliant with the wishes set forth in the parents' policies.

Abstract: Mechanisms are disclosed for detecting protocols independently of the ports used by streams associated with the protocols or applications that may send out such streams. The detecting may entail using a content filter that is hosted on a networking stack, where the content filter may be composed of a stream buffer and handlers for detecting the protocols. The handlers may be further used to modify streams incoming to a port or streams outgoing from an application. The handlers can modify the streams in a variety of ways, including reading, inserting, replacing, deleting, and completing data in the streams according to some policy criteria, such as those set by parental controls. Individual handlers may be selected from a plurality or set of handlers so that they can be matched up to the appropriate streams.

Abstract: A compliance interface is disclosed that takes in queries from applications which may want to know if they are compliant with associated polices stored on a computing system. The interface can then interpret these queries and provide notifications and instructions to the applications. Notifications may give notice of how a policy may impact an application, and instructions may tell an application how to behave in order to stay compliant with the policies. In one aspect, the interface exposes policies set forth by parents. Via a management control panel, parents can set or alter various policies, stored in a settings store, to protect children from contact with undesirable content. The interface interprets these policies to ensure that applications, such as those provided by third party vendors, are compliant with the wishes set forth in the parents' policies.

Abstract: A compliance interface is disclosed that takes in queries from applications which may want to know if they are compliant with associated polices stored on a computing system. The interface can then interpret these queries and provide notifications and instructions to the applications. Notifications may give notice of how a policy may impact an application, and instructions may tell an application how to behave in order to stay compliant with the policies. In one aspect, the interface exposes policies set forth by parents. Via a management control panel, parents can set or alter various policies, stored in a settings store, to protect children from contact with undesirable content. The interface interprets these policies to ensure that applications, such as those provided by third party vendors, are compliant with the wishes set forth in the parents' policies.

Abstract: A compliance interface is disclosed that takes in queries from applications which may want to know if they are compliant with associated polices stored on a computing system. The interface can then interpret these queries and provide notifications and instructions to the applications. Notifications may give notice of how a policy may impact an application, and instructions may tell an application how to behave in order to stay compliant with the policies. In one aspect, the interface exposes policies set forth by parents. Via a management control panel, parents can set or alter various policies, stored in a settings store, to protect children from contact with undesirable content. The interface interprets these policies to ensure that applications, such as those provided by third party vendors, are compliant with the wishes set forth in the parents' policies.

Abstract: Various internet content filtering mechanisms are disclosed. One such mechanism is a filtering service that uses a filter stack and at least two caches. The filter stack can access these caches during its execution of objects. One of the caches could be a cross-user cache that contains information relevant for internet content to a particular user, but this information could be also used by other users. The other cache could be a cross-application cache that contains information relevant for particular applications, but this information could also be used by other applications. The filtering service can be nicely integrated in an operating system to provide a centralized framework for the filtering of internet content.

Abstract: Mechanisms are disclosed for detecting protocols independently of the ports used by streams associated with the protocols or applications that may send out such streams. The detecting may entail using a content filter that is hosted on a networking stack, where the content filter may be composed of a stream buffer and handlers for detecting the protocols. The handlers may be further used to modify streams incoming to a port or streams outgoing from an application. The handlers can modify the streams in a variety of ways, including reading, inserting, replacing, deleting, and completing data in the streams according to some policy criteria, such as those set by parental controls. Individual handlers may be selected from a plurality or set of handlers so that they can be matched up to the appropriate streams.