Abstract: Flexible information appearance and behavior can be achieved with an extensible multi-phase transform engine. The transform engine can apply a series of transforms to markup language content. In a help service embodiment, application creators can specify a Uniform Resource Indicator (URI) for help content, and a collection of transforms and/or executable code for formatting and presenting the help content. The transforms may be custom transforms registered with the help service, or may be selected from a set of stock pre-registered transforms. The transforms can be applied by the engine to the help content. Custom transforms and transform selection may be used to control content appearance and engine output format. Transform operation may also trigger custom executable code to accomplish desired help behaviors.

Abstract: An active content trust model provides security in a help system. The security is provided in response to a call from a calling application to access active content. When the call is received, a determination is made, based on predetermined criteria, which execution mode to use to access the active content. The active content is then accessed in the determined execution mode, thus providing the security.

Abstract: The aforementioned need is satisfied by the present invention in which a help architecture supports an application and a help engine operating on a computer, where the help engine is for locating help topics relevant to the application. In the help architecture, at least one help library stores a plurality of help topics therein, where the help topics are accessible to a user from the help library by way of the computer, and a central store stores topic metadata corresponding to help topics available from each help library. The central store in response to a search request from the help engine locates topic metadata relevant to the search request and returns information from the located topic metadata.

Abstract: The aforementioned need is satisfied by the present invention in which a help architecture supports an application and a help engine operating on a computer, where the help engine is for locating help topics relevant to the application. In the help architecture, at least one help library stores a plurality of help topics therein, where the help topics are accessible to a user from the help library by way of the computer, and a central store stores topic metadata corresponding to help topics available from each help library. The central store in response to a search request from the help engine locates topic metadata relevant to the search request and returns information from the located topic metadata.