There is an interresting development (but haven't checked it lately) for using Cocotron (Cocoa clone) for Windows for ClozureCL.<p>What's really cool, is that while Objective-C Win32 applications written with Cocotron must be compiled under OSX (using gcc-mingw tools), this allows you to write them under Win32, because it uses the produced DLLS (AppKit.dll, Foundation.dll) and you communicate with lisp with them.<p>There is one thing to note - ClozureCL has 32-bit and 64-bit executables, but for some reason the 32-bit produced ones do not work on 64-bit.<p>That might be fixed already, I have to check again.