I'm sorry, I forgot to work this point. For example, I didn't add PIE.htc because for the moment 
it is not used by CSS for IE 9 on Ares but EP use it because it would like to work with IE <9.
So I want to correct my PR, delete -pie.
For the momemt, we don't use -ms because Ares cannot work on IE<9 .

Note: PIE Progressive IE