I downloaded the Flash Builder 4.5 Premium trial and packaged it up with Application Manager Enterprise 2 (I included my serial number, unselected AIR for Apple iOS, and let it apply the 4.5.1 patch). When running the resulting package, I get the message:
"The FlashBuilder executable launcher was unable to locate its companion shared library."
I see that three times, and then the installer seems to finish. I need this resolved, though, as I'm packaged an unattended installer, and this message seems to stop the install process until it's told "OK" the three times.