Here are the required dependencies to build LyX with MSVC 2013:
http://ftp.lyx.de/LyX-Windows-Deps/It contains a fresh compiled version of libhunspell, iconv and zlib. It contains also a bundled Python 2.7, latest Ghostscript and latest ImageMagick to be able to build a Windows installer. I can remove these if you like.
regards Uwe
