Is it possible to run a .lua file, or a .jar file?

I've tried gobetwino, doesn't work with windows 7..

Also, I saw a tutorial on youtube by Jeremy Blum about serial communication, and he did it using the language processor, and he said that you can interact with your computer from arduino using any programming language... Now, that being said it should be possible with Lua, so how can this be done with Lua?