commit https://github.com/vim/vim/commit/84e1d2b21a424f2687b61daaf84f5fc4f1ab0abe Author: Bram Moolenaar <Bram@vim.org> Date: Mon Mar 28 14:20:41 2016 +0200 patch 7.4.1667 Problem: Win32: waiting on a pipe with fixed sleep time. Solution: Start with a short delay and increase it when looping.

@echo off
rem To be used on MS-Windows for Visual C++ 2008 Express Edition
rem   aka Microsoft Visual Studio 9.0.
rem See INSTALLpc.txt for information.
@echo on

call "%VS90COMNTOOLS%vsvars32.bat"