While I can't comment on using the C# interop mechanisms to work with a C-language Lua, I was very interested to read this: > PS: I'm aware of the fact, that there'll be a > Lua.NET down the road (I've seen the project > page), but I need Lua now ... not in (many?) > months. It's probably old news for others here, but I never saw any sort of announcement that a Lua.NET was in the works. So I looked in Google and found this: http://www.tecgraf.puc-rio.br/~rcerq/luadotnet/ Which also leads to this: http://research.microsoft.com/collaboration/university/europe/rotor/default. asp I look forward to a Lua.NET. I especially look forward to a Lua implemented in C#. Interesting that Microsoft Research is sponsoring this.