[Zope] How to change default python interpreter when launching zope with pythonservice.exe

Hello, Can someone point me to documentation that describes how to specify a different instance of the python interpreter when starting zope with pythonservice.exe. I have zope running on windows xp. Everything works fine if I use the runzope.bat file from the zope/bin directory, but when I have zope start as a service it uses the python interpreter that is bundled with zope. -- Thanks Rick