Working jmeter.bat file for Windows that works regardless of where it's called from and doesn't throw an 'execution error: "Files was unexpected at this time."' due to the space in "Program Files"

jmeter.bat

@echo off
setlocal EnableDelayedExpansion

rem   Licensed to the Apache Software Foundation (ASF) under one or more
rem   contributor license agreements.  See the NOTICE file distributed with
rem   this work for additional information regarding copyright ownership.
rem   The ASF licenses this file to You under the Apache License, Version 2.0
rem   (the "License"); you may not use this file except in compliance with
rem   the License.  You may obtain a copy of the License at
rem 
rem       http://www.apache.org/licenses/LICENSE-2.0
rem 
rem   Unless required by applicable law or agreed to in writing, software
rem   distributed under the License is distributed on an "AS IS" BASIS,
rem   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rem   See the License for the specific language governing permissions and
rem   limitations under the License.

rem   =====================================================
rem   Environment variables that can be defined externally:
rem
rem   JMETER_BIN - JMeter bin directory (must end in \)
rem   JM_LAUNCH - java.exe (default) or javaw.exe
rem   JVM_ARGS - additional java options, e.g. -Dprop=val
rem
rem   =====================================================

if .%JM_LAUNCH% == . set JM_LAUNCH=java.exe

if not "%OS%"=="Windows_NT" goto win9xStart
:winNTStart
@setlocal

rem Need to check if we are using the 4NT shell...
if "%eval[2+2]" == "4" goto setup4NT

rem TPC if exist jmeter.bat goto winNT1
rem TPC if .%JMETER_BIN% == . set JMETER_BIN=%~dp0

:winNT1
rem On NT/2K grab all arguments at once
set JMETER_CMD_LINE_ARGS=%*
goto doneStart

:setup4NT
set JMETER_CMD_LINE_ARGS=%$
goto doneStart

:win9xStart
rem Slurp the command line arguments.  This loop allows for an unlimited number of 
rem arguments (up to the command line limit, anyway).

set JMETER_CMD_LINE_ARGS=

:setupArgs
if %1a==a goto doneStart
set JMETER_CMD_LINE_ARGS=%JMETER_CMD_LINE_ARGS% %1
shift
goto setupArgs

:doneStart
rem This label provides a place for the argument list loop to break out 
rem and for NT handling to skip to.

rem The following link describes the -XX options:
rem http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html
rem http://java.sun.com/developer/TechTips/2000/tt1222.html has some more descriptions
rem Unfortunately TechTips no longer seem to be available

rem See the unix startup file for the rationale of the following parameters,
rem including some tuning recommendations
set HEAP=-Xms512m -Xmx512m
set NEW=-XX:NewSize=128m -XX:MaxNewSize=128m
set SURVIVOR=-XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=50%
set TENURING=-XX:MaxTenuringThreshold=2
set PERM=-XX:PermSize=64m -XX:MaxPermSize=128m -XX:+CMSClassUnloadingEnabled
rem set DEBUG=-verbose:gc -XX:+PrintTenuringDistribution

rem Always dump on OOM (does not cost anything unless triggered)
set DUMP=-XX:+HeapDumpOnOutOfMemoryError

rem Additional settings that might help improve GUI performance on some platforms
rem See: http://java.sun.com/products/java-media/2D/perf_graphics.html

set DDRAW=
rem  Setting this flag to true turns off DirectDraw usage, which sometimes helps to get rid of a lot of rendering problems on Win32.
rem set DDRAW=%DDRAW% -Dsun.java2d.noddraw=true

rem  Setting this flag to false turns off DirectDraw offscreen surfaces acceleration by forcing all createVolatileImage calls to become createImage calls, and disables hidden acceleration performed on surfaces created with createImage .
rem set DDRAW=%DDRAW% -Dsun.java2d.ddoffscreen=false

rem Setting this flag to true enables hardware-accelerated scaling.
rem set DDRAW=%DDRAW% -Dsun.java2d.ddscale=true

rem Server mode
rem Collect the settings defined above
set ARGS=%DUMP% %HEAP% %NEW% %SURVIVOR% %TENURING% %PERM% %DDRAW%

rem TPC edit: hard-coding path because I can't figure out how to get space in path to not break when assigned to variable
rem %JM_START% %JM_LAUNCH% %ARGS% %JVM_ARGS% -jar "%JMETER_BIN%ApacheJMeter.jar" %JMETER_CMD_LINE_ARGS%
set JMETER_BIN="C:\Program Files (x86)\Apache Software Foundation\jMeter\bin\ApacheJMeter.jar"
%JM_START% %JM_LAUNCH% %ARGS% %JVM_ARGS% -jar !JMETER_BIN! %JMETER_CMD_LINE_ARGS%

rem If the errorlevel is not zero, then display it and pause

if NOT errorlevel 0 goto pause
if errorlevel 1 goto pause

goto end

:pause
echo errorlevel=%ERRORLEVEL%
pause

:end