Another location where paths are stored...
REM Download http://sourceforge.net/projects/lyx/files/Win_installers/Dependencies/lyx20-deps-msvc2010-x86.zip
REM Extract on the same level as LyX sources
-set GNUWIN32_DIR=D:\LyXGit\Master\lyx-windows-deps-msvc2010
+set GNUWIN32_DIR=D:\LyXGit\Master\lyx-windows-deps-msvc2015
REM MSVC 2015 tools
call "C:\Programme (x86)\MSVC2015\VC\vcvarsall.bat" x86
set PATH=C:\Qt\Qt5.6.0-MSVC2015\5.6\msvc2015\bin;%PATH%
REM Edit pathes here or set the environment variables on you system.
-set GNUWIN32_DIR=D:\LyXGit\Master\lyx-windows-deps-msvc2010
+set GNUWIN32_DIR=D:\LyXGit\Master\lyx-windows-deps-msvc2015
set LYX_SOURCE=D:\LyXGit\Master\
set LYX_BUILD=D:\LyXGit\Master\compile-2015