Lua is a powerful, fast, lightweight, embeddable scripting language. TCC-RT includes internal support for Lua, both for executing Lua scripts and for executing individual Lua expressions. The version supplied with TCC-RT is Lua 5.4.6. For more information on Lua, go to


You must enable Lua support in the OPTION / Startup page. If it is enabled, TCC-RT will automatically load LUA.DLL on your system. TCC-RT checks to see if you are running a .LUA file. If so, TCC-RT passes the file to the Lua interpreter for processing.


See also: the @LUA function.