[Zope] zope as NT Service

I'm having no luck getting zope to run as a service. I can install Zope 2.4 no problem. When it asks me if I want to run it as a service, I answer "Yes I do". Then everything appears fine. But http://localhost:8080/manage does not find any servers and upon stopping and restarting the service I get an error that says "Error 0193: %1 is not a valid Windows NT application". I had this problem with 2.3 also and now that I want my program on a real server, it should run as a service. What could the solution be? -mjm