Folks: I've been stuck for weeks on the horns of the following dilemma: The x64 installation goes thru nearly the entire process, thru half of my GUIRunOnce script (which has existed for years), then stops at this point, never to be heard from again. I watch the script until Adobe Reader completes, supposed to be followed by Adobe AIR, but it never starts, in fact nothing else in the script launches. Let's say we break out of this hang-up, by restarting the PC. My GUIRunOnce script is over and the WinToolkit installer tries to complete but hangs also. Finally, another reboot and we arri