thank y'all for the tips. I've fixed my problem through your opinions.
especially, thanks to Flyboy & Positiveg
I'm really enjoy my Ah64 flying
**p.s
for those people who got " wrapdll.dle " error, try this :
http://digitality.comyr.com/speichts/lb2/ram.html -> Download this file -> WAC-LB2.ZIP