Cannot edit Ajax TruClient Scripts

Hi,

I'm using Loadrunner 11.52. There is a certain script I need to edit, however, whenever I try to "Develop Script" I get a single error stating the following:

"To edit an Ajax Truclient IE script you must have Internet Explorer 9 installed on your machine."

I have both the 64bit and 32bit renditions of IE9 on my machine already. I also have tried disabling UAC, disabling DEP for IE9 32bit, and restarting VuGen itself. None of those mentioned turned out to be successful.