BC 5 works for me also(win7 ultimate 64bit), the funny thing is that ever since the soo called new hacking protection came out, my Anti virus has been giving me alerts about an intruder alert and it terminates Nexon Guard lmfao!!!!!! so i can hack freely, with out having to worry about the new soo called Awesome Hacking protection, because NEXON GOT PWNED BY BitDefender lol!!!!