this has probably been asked and answered before, but :

is there any codec that will allow me to view swf files in WMP?

thanks in advance

Well, basically it should play if the Flash Player was installed... (or at least some swf files play, sure).
And there are converters.. or don't you wanna convert it to video?

Most browsers can play .swf files, I don't quite see why you want it to play it in WMP instead.