When you compile an application, you create a SWF file that a user can download and play. You can also compile any custom components that you create as part of the application.

When you create a component, you save it to a location that the Adobe® Flex® compiler can access. You can save your components as MXML and ActionScript files, as SWC files, or as Runtime Shared Libraries (RSLs). You have several options when you compile the components.

• About compiling
• Compiling components with Flex SDK