[Zope] Log severity without stupid log file?

I want to start Zope (2.3.3) with a log severety of 0 but I'm not using stupid log file, but just loggin to stdout (this is Windows). How do I do this? Using -D makes it write out everything including debug info, which I don't want. Not using -D means it only writes out errors, and not INFO level logs. I want something in the middle, ans STUPID_LOG_SEVERITY obviously doens't work. So what now?