How do I determine the path to Applications within "Open with" context menu on OS X?

How do I determine the path to Applications within "Open with" context menu on OS X?

I've got several versions of the Flash Player listed in my "Open with" context menu. I'd like to determine the path to those applications. I'd also like greater control over those items in the list. How can I determine the path to and change the path to Applications listed in teh "Open with" menu?