commit https://github.com/vim/vim/commit/779f2fc3a7468e273897d2fd0672315812a2e3da Author: Bram Moolenaar <Bram@vim.org> Date: Thu Sep 1 20:58:24 2016 +0200 patch 7.4.2303 Problem: When using "is" the mode isn't always updated. Solution: Redraw the command line. (Christian Brabandt)

@echo off
rem batch file to start Vim with less.vim.
rem Read stdin if no arguments were given.
rem Written by Ken Takata.

if "%1"=="" (
  vim --cmd "let no_plugin_maps = 1" -c "runtime! macros/less.vim" -
) else (
  vim --cmd "let no_plugin_maps = 1" -c "runtime! macros/less.vim" %*
)