hello dear friends!

today i downloaded the client from torrent,after i downloaded it i sayd"hey why not to install it" i try to install it,it stalls for maybe 15 seconds and then says RohanBloodFeud_EN_08292012.exe has encountered a problem and needs to close. We are sorry for the inconvenience. what can i do about this? i didn`t found a clue in the whole google,so please GM`s help me.i would apreciate that