Как установить luasocket?

module 'luasocket' not found:
        no field package.preload['luasocket']
        no file 'G:\lua-test/luasocket.lua'
        no file 'G:\lua-test/luasocket.lua'
        no file 'G:\lua-test/luasocket.dll'
        no file 'G:\lua-test/luasocket.dll'
stack traceback:
        [C]: in function 'require'
        g:\lua-test\main.lua:1: in main chunk
        [C]: in ?