batch scripting carriage return head request

I've spent a bit of time to understand how to get a carriage return with a batch script. Anyway this simple batch is useless ... an HEAD HTTP request with netcat.
gethead.bat

@echo OFF
if not exist "%set_path_root%bin\nc.exe" goto :NONETCAT
set HTTPHOST=%1
if "%HTTPHOST%" == "" goto :HELP
set HTTPPORT=%2
if "%HTTPPORT%" == "" set HTTPPORT=80
set HTTPHEADREQ=HEAD / HTTP/1.0
echo %HTTPHEADREQ% >httpreqfiledata.tmp
echo. >>httpreqfiledata.tmp
nc %HTTPHOST% %HTTPPORT% < httpreqfiledata.tmp


del httpreqfiledata.tmp
GOTO :END


:NONETCAT
echo please make sure that necat is available
goto END
:HELP
echo ------------------------------
echo usage: gethead hostname [port]
echo ------------------------------
:END