Tried to replicate your problem, had no luck. For me everything works as expected. (Flash CS6, Win 7)
I tried to replicate this problem on few more computers and everything works fine. The worst is that it happends on my two workstations that im using to develop applications... Today I'll clear my pc from all adobe products and reinstall it. If it doesn't help I'll write to support - maybe they will know what to do or what could be reason of this problem.
Ok i found what was the problem.
I'm using the ConEmu Console - and i had registered command processor to attach all instances of cmd to this console. - when I removed this processor it worked fine.
Probably adl cannot be runned throug any processors, or this one in ConEmu have bugs.
You can find processor in registry at path:
Thanks for your help maybe it will help somebody who uses ConEmu Console and develops AIR applications
If the problem reproduced with latest version (hint, stable is not latest) - please report to project issues.