I have not worked with Cold Fusion in several years, so things may have changed since then. But if it still works like it used to, then from the client side (i.e.: the web browser) it should be no different than testing any other HTML web page. So if that is still the case, all you should need is the Web Test add-in which comes standard with WinRunner.
But hopefully someone with more recent CF experience can give a better-informed answer. [img]images/icons/smile.gif[/img]