The difference between Windows NT Workstation and Server (idea)

Keeping in mind that in Windows 2000, Workstation is Professional, and Server is Server, Advanced Server, and Datacenter Server; a few other differences:

• Server supports more processors (especially up to Datacenter)
• Server has a somewhat different process scheduling algorithm. In NT, the foreground process gets double quantums. Under server, the default is not to be optimized for those foreground apps.
• Server ships with more connectivity options, such as File and Print Services for Macintosh.
• Server allows custom routing, DHCP serving, and Domain ownership / controllership
• Certain apps, especially the BackOffice apps won't install on Workstation. (SQL server will only install the personal verson)
• You can create virtual sites in Server in IIS, but you can't under a Workstation install.
• You change passwords under Users and Passwords, rather than in Computer Management.
• I don't think Workstation can create striped volumes in an out of the box install.
• Different PIDs
• You can create a DFS root in Server, but can only join one in Workstation
• Server runs the "Server" service

That is a huge part of it. Basically, Workstation is very limited in what it can do, i think mainly because of licensing. The myth behind the two registry keys is quite obviously false.