It never is - it's really the holy grail of enterprise computing, and it's very difficult to do effectively. Also, while the edition is termed professional, it's meant for home office/small businesses who don't have volume licensing, and who would be less likely to be locking down Windows that way. Applocker+Group Policy is considered an enterprise feature, which comes with the Enterprise version of the OS meant for medium to large enterprises (and Ultimate, of course). It stinks, but that's how the editions are hashed out. I see. That's really very confusing that they would call it that then. So, how can I do this then? Is it still possible? I have Group Policy but I don't know if that works in Professional or if that doesn't work either. Is there another way to do this? I'm sorry that my question is so complex. Thanks Again, Joanie G