Since it may be on topic because it's a server product on here, but it may also be on topic on Superuser, what is the ruling on questions where the desktop OS is actually Windows Server, even if it's not providing "server" functionality?
- …You are using/supporting Windows Server as a workstation as part of your responsibilities as a system administrator in a professional environment (as part of your duties for a company/client)
- …and/or your question is about system administration functionality (i.e. not "How do I install MS Word on this box?")
- and you are the administrator of the system in question
Your question is probably fine here. It would be the same as asking about Win7 Professional in my view.
If this is for personal/home use, your question is more along the lines of "How do I install X on Y?", or you are not the system/network administrator responsible for the equipment in question this is probably the wrong place to ask -- especially if you're not the administrator responsible (the only answer you get will almost certainly be "Call your system administrator and let them do their job!" :-)
(See also: The Most Holy and Revered FAQ, though I can see where there's some ambiguity in this case)
Just because the word server is part of the site name doesn't mean questions are necessarily about servers or that all server questions are on topic. It's not the machine or the OS that determines topicality but the actual question itself. As you've provided no context it's impossible to say in your specific case where you question might belong, if anywhere.