[Zope] Stupid question for Stupid Logger

Hello I have to run Zope under WinNT, and I need to log application errors when they happen. I have tried to activate the Stupid Log by setting the environment variable like this: set STUPID_FILE_LOGGER=/temp/Zope.log Well, nothing happens. They file is not created nor any exception is trapped. Now the questions are: - Am I doing to wrong thing? If yes, please correct me. - Is it the right tool to use? If not, please give me some pointers/indications. Thanks in advance Stefano