так:

Код AS1/AS2:
_root.createEmptyMovieClip("mc", _root.getNextHighestDepth());
var loaderMain = new MovieClipLoader();
var listenerMain = new Object();
listenerMain.onLoadInit = function(target_mc)
{
target_mc.stop();
};
loaderMain.addListener(listenerMain);
loaderMain.loadClip(mc, "c:\rolik.swf");