Flash provides a mechanism that allows Flash movies to communicate with the scripting environment and vice versa [Flash Communications diagram]. This mechanism is called FS Command. There are three types of FS Commands used in browsers:

1) Flash Methods allow you to send values from the scripting environment to Flash.
2) Flash Properties allow you to get the values of properties from Flash and use them in script.
3) FS Commands send commands from Flash to the scripting environment.

List of FS Commands
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
FS Command capable Browsers:
Netscape 3+ - Java-enabled Windows 95/98/NT & Power Mac
MSIE 3+ - ActiveX-enabled Windows 95/98/NT
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

There are also 5 special FS Commands that are used to control Flash movies when playing in stand-alone projectors.

Browsers can only communicate with Flash by using a 32 bit implementation of either LiveConnect or ActiveX Scripting. JavaScript and Java must be enabled in Netscape browsers for FS commands to work. In Internet Explorer the ActiveX control for Flash must be installed (not the plugin) and ActiveX scripts must be enabled.

IE/Mac, Win3.x and Mac 68K do not work with FS Commands and no other brand or platform is known to work with FS Commands.