# Sending messages to and from the Flash Player

To send messages from a Flash movie to its host environment (for example, a Web browser, a Macromedia Director movie, or the stand-alone Flash Player), you can use the `fscommand` action. This action lets you extend your movie by using the capabilities of the host. For example, you could pass an `fscommand` action to a JavaScript function in an HTML page that opens a new browser window with specific properties.

To control a movie in the Flash Player from Web browser scripting languages such as JavaScript, VBScript, and Microsoft JScript, you can use Flash Player methods—functions that send messages from a host environment to the Flash movie. For example, you could have a link in an HTML page that sends your Flash movie to a specific frame.