This looks like a sort of half-way compromise between Windows XP Professional Edition, and the Small Business Server Model for Windows Server 2003. While not as powerful, or flexible as the Enterprise Edition, it's worth investing, if you run a small business, and need a client, that can keep up with anything thrown at it.
|Windows Vista Edition List|
|Windows Vista Product List: Starter | Home N | Home Basic | Home Premium | Professional N | Professional | Small Business | Enterprise | Ultimate|
|Microsoft Operating System Versions|
|Microsoft Operating System Versions:|