how to create a button to load an external exe file

hi

i have an flash cs5 project

so the user when clicking the button the exe file open ?

the exe in folder name "puzz"

the exe file name play.exe

i tried this

    button_1.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler);   

    function fl_MouseClickHandler(event:MouseEvent):void

    {

                    flash.system.fscommand("exec","//puzz//play.exe");

                                            trace ("done");

    }

but nothing happen!