"Move all images into individual files" build option

[giulio mastrosanti]

Hi all,
Can't realize how to use "Move all images into individual files" build 
option.
I imagined checking it on the build options form to have a smaller 
executable, and the imagines I have imported into my card to be on some 
subfolder of the executable folder.
But this don't seem to happen, what am I missing?
thanx for your answer,

       Giulio