commit https://github.com/vim/vim/commit/b0262f239e77480f81fa3345491b7b6d52a17f6d Author: Bram Moolenaar <Bram@vim.org> Date: Fri Sep 25 15:28:38 2015 +0200 patch 7.4.876 Problem: Windows7: when using vim.exe with msys or msys2, conhost.exe (console window provider on Windows7) will freeze or crash. Solution: Make original screen buffer active, before executing external program. And when the program is finished, revert to vim's one. (Taro Muraoka)