A type server provides the proxy and stub code needed by client and server programs on demand, when the code is needed during execution. For example, the method receives a request from a customer via a data enabled cellular phone for accessing one or more multimedia content from a multimedia content server of the customer, and performs an authentication for obtaining the one or more multimedia content from the multimedia content server. The cover includes a fluid-flow channel with a blocking member arranged therein. The transceiver on the circuit of the valve assembly may send wireless optical line-of-sight signals to communicate the gas data to a control module. Sourcedrain regions are located in recesses at either end of the thin channel and are substantially thicker than the thin channel.