I've had the following happen on Wowza 2.2.4 and 3.03.
If I pass a connection URL of rtmp://server/junkApp, in my actionscript code I'll get a code of "NetConnection.Connect.Rejected" with a description saying the application folder was not found. From what I see in the Flash documentation for the NetStatusEvent, I would expect to get a code of "NetConnection.Connect.InvalidApp". What am I missing? I understand from what I've seen writing Wowza modules that the code is just a string, but I'd expect the strings defined in the Flash docs to be used where appropriate.