AFAIK, W2K Pro has a technical limitation on the number of concurrent connections that can be made to it. It also has a technical limitation in the number of web sites that can be configured. When I say technical, I mean the software blocks you from going beyond this limit even if you wanted to.

The limitations on W2K Server are licensing related not technical. I don't believe it blocks you in any way from going beyond the limitations of the licensing agreement. Legally, you can't but technically you can.

Does this help any better?

I would recommend the Win2000 Server with 1 CAL. The CAL covers you as the administrator and thats it. If your client is only going to use the box as a web server and if they aren't going to run sites that require NT authentication (i.e. use only anonymous access), then that's all they need both legally and technically.

>Larry,
>I appreciate the information, but could you please expand on this a bit?
>
>I'm confused whether you're saying that my client doesn't need the Win2000 Server edition. He's talking about 3 possible systems: Win2000 Pro, Win2000 Server with 1 client and Win2000 Server with 5 clients. I'm having trouble matching your info with the specific versions.
>
>Thanks,
>Barbara
>
>
>>Its 10 concurrent connections and yes each web user is considered a connection until they timeout.
>>
>>I believe its also limited (like its PWS on Workstation predecessor) to one web site where in IIS and Server, you can have multiple IP addresses (which you can still have) and have a different web site per address. You can't do this in Pro.