@echo off
setlocal enabledelayedexpansion

SET thisFile=%1
set /a md5count=1 
for /f "skip=1 delims=:" %%a in ('CertUtil -hashfile %thisFile% MD5') do (
  if !md5count! equ 1 set "md5=%%a"
  set/a md5count+=1
)
set "md5=%md5: =%"
echo %md5%
endlocal
exit/B