Error message: "No modules have registered the action _list. Check any required supporting modules are enabled." This error message displayed on any page where there is an incorrectly formatted [swf file] tag used in a displayed node.

E.g. [swf file=http://website/sites/default/files/node/782/test.mp3] will cause this error.

While [swf file="http://website/sites/default/files/node/782/test.mp3"] — note the quotes — will not cause the error.