Solution found !!!
give credit to guy in link (i am just spreading the word).
Still getting this error. My files aren't running in compatibility mode. Hotfix didn't work for me either.
Flames of Rage
Bump for help
© 2014 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.