Remote Procedure Call (RPC) components let a client application make calls to operations and services across a network. The three RPC components are the RemoteObject, HTTPService, and WebService components. Your Flex client code uses these components to access remote object services, web services, and HTTP services.

• RPC components
• RPC components versus other technologies
• Using destinations
• Defining and invoking a service component
• Handling service events
• Passing parameters to a service
• Handling service results
• Using capabilities specific to WebService components
• Handling asynchronous calls to services