How do you manage developing with multiple versions of Grails using Windows?

I have a couple of bat files which changes the GRAILS_HOME and the system PATH according to which version I'm using.

It's not the most beautifull solution at all, but at least works for me.

I have a batch file, that looks like below.

@ECHO OFF

if "%1"=="231" goto grails231
if "%1"=="232" goto grails232
if "%1"=="233" goto grails233
if "%1"=="234" goto grails234


goto end

:grails231
set GRAILS_HOME=F:\softwares\grails-2.3.1
set PATH=%GRAILS_HOME%\bin;%PATH%
goto end

:grails232
set GRAILS_HOME=F:\softwares\grails-2.3.2
set PATH=%GRAILS_HOME%\bin;%PATH%
goto end


:grails233
set GRAILS_HOME=F:\softwares\grails-2.3.3
set PATH=%GRAILS_HOME%\bin;%PATH%
goto end

:grails234
set GRAILS_HOME=F:\softwares\grails-2.3.4
set PATH=%GRAILS_HOME%\bin;%PATH%
goto end

:end

It can be run like 'setgrails 233' and it will set the grails 2.3.3