I am right in the middle of using your distribution of Lua as my GUI library of choice. (If I ever make something worth showing, I'll let y'all know.) Great work, and thank you. I am eager to try out the newer versions of the Tecgraf libraries included.
Have you ever considered trying to make a "portable" version of Lua for Windows? I know nothing about how hard it is to do this, but you are already most of the way there - after installing the MS 2005 runtimes I could get all the libraries I needed (IUP and some of the secondary IUP libraries) to work without actually installing Lua for Windows. I've tested this behavior on Windows XP and Windows Vista - and I'll be deploying applications to Windows 7 soon.
I suppose I could try building a version with MinGW, but after all, the best programmers are lazy programmers. Or so a professor once told me.
Luafor Windows is a 'batteries included environment' for the Lua scripting language on Windows.
Luafor Windows combines Lua binaries, Lua libraries with a Lua-capable editor in a single install package for the Microsoft Windows operating system. Luafor Windows contains everything you need to write, run and debug Lua scripts on Windows. A wide variety of libraries and examples are included that are ready to use with Microsoft Windows. Luafor Windows runs on Windows 2000 and newer versions of Windows. Lua and its associated libraries are also available for other operating systems, so most scripts will be automatically cross-platform.