alright guys, I'm new here, first post. sorry if I'm "necroing" this thread. but the best program I've used to crack password protected rar files is cRARk. its an open source program for windows and linux. it utilizes the GPU so anyone with a half decent GPU can do about 5000 p/s. it works well for brute forcing things quickly, but also supports custom dictionary's, it would be pretty handy to have just one large dictionary file with every word from every language... although there's always those nuts who make 25 character random generated passwords.