The FlyffUsaSetup_v15.exe file you have requested: Clients / Flyff US Client v15 - 859.3mb is not available. Perhaps try browsing all files for the game Flyff! Fly For Fun! and upload any files you want to share or are missing. This is the only information we could locate:
This is the latest client for Flyff, GalaNet's 3D MMORPG that launches players into a thrilling world of flight. This version will be live on April 14th, 2010.