Finding out where the swf is embedded?

Is there a way in AS 2, to figure out where a swf is embedded, without the use of FlashVars? I have a widget that is being embedded on different sites, and some sites disallow the use of flashvars.

I’m trying to figure out all of the sites that my swf is embedded on. What would be great is if Flash could parse something out of the http header, or something of that sort. Is this possible?

Thanks!