diff --git a/Tools/msi/buildrelease.bat b/Tools/msi/buildrelease.bat
index 7183a84..3f2a94a 100644
--- a/Tools/msi/buildrelease.bat
+++ b/Tools/msi/buildrelease.bat
@@ -26,15 +26,21 @@
 
 
 :CheckOpts
+if "%1" EQU "-h" goto Help
 if "%1" EQU "-c" (set CERTNAME=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--certificate" (set CERTNAME=%~2) && shift && shift && goto CheckOpts
 if "%1" EQU "-o" (set OUTDIR=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--out" (set OUTDIR=%~2) && shift && shift && goto CheckOpts
 if "%1" EQU "-D" (set SKIPDOC=1) && shift && goto CheckOpts
+if "%1" EQU "--skip-doc" (set SKIPDOC=1) && shift && goto CheckOpts
 if "%1" EQU "-B" (set SKIPBUILD=1) && shift && goto CheckOpts
+if "%1" EQU "--skip-build" (set SKIPBUILD=1) && shift && goto CheckOpts
 if "%1" EQU "--download" (set DOWNLOAD_URL=%~2) && shift && shift && goto CheckOpts
 if "%1" EQU "--test" (set TESTTARGETDIR=%~2) && shift && shift && goto CheckOpts
 if "%1" EQU "-b" (set TARGET=Build) && shift && goto CheckOpts
-if '%1' EQU '-x86' (set BUILDX86=1) && shift && goto CheckOpts
-if '%1' EQU '-x64' (set BUILDX64=1) && shift && goto CheckOpts
+if "%1" EQU "--build" (set TARGET=Build) && shift && goto CheckOpts
+if "%1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts
+if "%1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts
 
 if not defined BUILDX86 if not defined BUILDX64 (set BUILDX86=1) && (set BUILDX64=1)
 
@@ -42,21 +48,21 @@
 if "%SKIPBUILD%" EQU "1" goto skipdoc
 if "%SKIPDOC%" EQU "1" goto skipdoc
 
+if not defined PYTHON where py -q || echo Cannot find py on path and PYTHON is not set. && exit /B 1
+if not defined SPHINXBUILD where sphinx-build -q || echo Cannot find sphinx-build on path and SPHINXBUILD is not set. && exit /B 1
 call "%D%..\..\doc\make.bat" htmlhelp
 if errorlevel 1 goto :eof
 :skipdoc
 
-where hg >nul 2>nul
-if errorlevel 1 echo Cannot find hg on PATH & exit /B 1
+where hg /q || echo Cannot find Mercurial on PATH && exit /B 1
 
-where dlltool 2>nul >"%TEMP%\dlltool.loc"
-if errorlevel 1 dir "%D%..\..\externals\dlltool.exe" /s/b > "%TEMP%\dlltool.loc"
-if errorlevel 1 echo Cannot find binutils on PATH or in externals & exit /B 1
-set /P DLLTOOL= < "%TEMP%\dlltool.loc"
-set PATH=%PATH%;%DLLTOOL:~,-12%
-set DLLTOOL=
-del "%TEMP%\dlltool.loc"
-
+where dlltool /q && goto skipdlltoolsearch
+set _DLLTOOL_PATH=
+where /R "%D%..\..\externals" dlltool > "%TEMP%\dlltool.loc" 2> nul && set /P _DLLTOOL_PATH= < "%TEMP%\dlltool.loc" & del "%TEMP%\dlltool.loc" 
+if not exist "%_DLLTOOL_PATH%" echo Cannot find binutils on PATH or in external && exit /B 1
+for %%f in (%_DLLTOOL_PATH%) do set PATH=%PATH%;%%~dpf
+set _DLLTOOL_PATH=
+:skipdlltoolsearch
 
 if defined BUILDX86 (
     call :build x86
@@ -94,14 +100,12 @@
     set RELEASE_URI=%RELEASE_URI_X64%
 )
 
-echo on
 if exist "%BUILD%en-us" (
     echo Deleting %BUILD%en-us
     rmdir /q/s "%BUILD%en-us"
     if errorlevel 1 exit /B
 )
 
-echo on
 if exist "%D%obj\Release_%OBJDIR_PLAT%" (
     echo Deleting "%D%obj\Release_%OBJDIR_PLAT%"
     rmdir /q/s "%D%obj\Release_%OBJDIR_PLAT%"
@@ -138,3 +142,22 @@
     copy /Y "%BUILD%en-us\*.msi" "%OUTDIR%\%OUTDIR_PLAT%"
 )
 
+exit /B 0
+
+:Help
+echo buildrelease.bat [--out DIR] [-x86] [-x64] [--certificate CERTNAME] [--build] [--skip-build]
+echo                  [--skip-doc] [--download DOWNLOAD URL] [--test TARGETDIR] [-h]
+echo.
+echo    --out (-o)          Specify an additional output directory for installers
+echo    -x86                Build x86 installers
+echo    -x64                Build x64 installers
+echo    --build (-b)        Incrementally build Python rather than rebuilding
+echo    --skip-build (-B)   Do not build Python (just do the installers)
+echo    --skip-doc (-D)     Do not build documentation
+echo    --download          Specify the full download URL for MSIs (should include {2})
+echo    --test              Specify the test directory to run the installer tests
+echo    -h                  Display this help information
+echo.
+echo If no architecture is specified, all architectures will be built.
+echo If --test is not specified, the installer tests are not run.
+echo.
\ No newline at end of file