The automatic build now also builds iconv, hunspell, and zlib. Uwe, could you check if the downloadable zip is good enough as basis for a real installer?
https://github.com/syntheticpp/LyX-bleeding-edge/blob/LyX-master-win32/README.md If this works, then we could even try to build the installer automatically. Uwe, do you know that scripting in linux is much more convinient than these bat file hacking. Or we switch mingw on Windows. Are there any god reasons to not use mingw for a release? (sure for developing msvc could be still used)