I liked your work very much, it looks very easy to use, but unfortunatelly it does not work... at least in my computer!
I noticed, in the command line, that you did not put the "" between:
In your programm looks like that:
D:\Nero\win32\neroAacEnc.exe -cbr 160000 -if D:\Work\The Swan.wav -of "D:\Work\The Swan.mp4"
And in my computer works only like that:
"D:\Nero\win32\neroAacEnc.exe" -cbr 160000 -if "D:\Work\The Swan.wav" -of "D:\Work\The Swan.mp4"
Is that a mistake?
Greetings!