You could check if AIR allows to output to the output stream (or System.Out) while running and you can catch that easily under Windows.
See for more information: http://msdn.microsoft.com/en-us/library/system.diagnostics.processstartinfo.redirectstandardoutput.aspx Of course, can also add some sort of file watcher and get an event when the file is added to a specific file (or a file with a specific name) and then directly open it in C#. See: http://msdn.microsoft.com/en-us/library/system.io.filesystemwatcher.aspx
