Injection problem

Hi, I have a big problem, no hack works for me because I can't inject them, I start the game, login, and then start the injector, select the hack's .dll and the injector couldn't find the engine.exe so I cand inject the hack, OK, I tried another injector in which I write the name of the .exe. Started the game, login, and then in the injector I wrote engine.exe, selected the .dll hack and clicked Inject, switched to the game and it automatically closed, help please! I tried A LOT of times, but nothing, I'm using Windows 7 64bit.

P.S. Sorry for my english...