Whut language does people use when makeing hacks??
C++ as around 3 people have told you, but jeremywilms probably won't read this as he is probably one of those noobs who sign up, post, and never return. If not then I am mistaken.
Also, you can buy C++, download it from a Torrenting Site or a Peer 2 Peer program such as Limewire, as you said.
Try Perl, XCSS, PHP, Java, anything.
There is no language, it's whatever is best suited for the environment.