An interoperability system abstracts the protocols used by multiple network applications into an interoperability framework, thereby allowing the network applications to interoperate with each other and/or with modules for providing enhanced functionalities. The interoperability framework includes a number of adapters that modularize the components needed for interoperation and abstracts content from the underlying protocols and procedures used by the network applications. The interoperability framework includes a resource control that enables the network applications to access shared resources, such as data and content used by the network applications, thus allowing the applications to interoperate and for functionality enhancements to be added.