On Win7 Ultimate (64bit), attempting to start the .exe from a mounted disk image (PowerISO) instantly causes a BSoD, if need be, I would be willing to post dump files or system specs.
Try something else than PowerISO to mount the disc, burn it or use daemon tools.
PowerISO is just terrible, and we already had problem with it in the past ><
Indeed. This issues had already been reported during the previous release, and I took the time to play a bit with PowerISO to see what the fuss was all about. It definitely doesn't mount virtual drives properly (and also is crippled with ads), so I advise to stay away from it.
Daemon Tools Lite, Alcohol, and the native Win8 tools all work fine.
I use Dameon Tools
DTOOLS FTW.