2 protected files just unable to convert to mp3

[dalwnt]

Hey there,
its been 4 months since i did everything and im really really going crazy i have tried everything asked people to help but nothing.. i want to convert 2 .aa files to mp3 but its not working. I got the files from a user which audible username doesnt excisst and if i want to convert or unlock them it askas for a username.
It looks like ur professionals here can anyone PLEASE help me and unlock or convert to mp3?
See on the link below i uploaded both files

File 1: http://www.filefactory.com/file/4qfuyle8zdrt/
File 2: http://www.filefactory.com/file/4qfu...f_Execution_aa