Behat from batch file with error handler

It's hard for me to explain my problem, so let's see the code :

@echo off
cls
set errors=0

bin\behat > test.txt || set /A errors=errors+1

if %errors% EQU 0 goto ok
goto ko

:ok
echo .
echo .OK
goto end

:ko
echo .
echo .KO


:end

When I launch this batch file, I never see the OK/KO output. It looks like the batch stopped after the call to behat. But I need it to continue, in order to detect errors and manage them.

This batch works fine with other calls and I need behat being called after them. Has someone an idea to resolve this ?

Thanks