John Ferringer replied to a post on the Technet forums that I felt would make a good quick tip. I have seen this question come up numerous times on the forums. How can I tell if I am running MOSS 2007 Standard or Enterprise? There are two ways to answer this. I’ll show you both below.
The first way is to simply see what you have installed on your server. There are several ways to do this. The easiest is to open the Operations tab in Central Administration. Then open Enable Enterprise Features. Your answer to your question should be selected there. Note that if you check Enterprise, you can not go back to Standard.
If for some reason you have an aversion to Central Admin, you can also find this in the registry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\12.0. Find OfficeServerPremium. A 0 means standard and a 1 means enterprise. I would strongly recommend against changing anything here.
Now the other way to approach this question has to do with licensing. There are many times when what you are licensed for is not equal to what you have installed. To find this answer, you will need to find your media or your software license info. If you have the official media from Microsoft, it should say it on there. Mine is labeled Microsoft Office SharePoint Server 2007 For Enterprise. If you purchased it another way and don’t have the media, you should still have a license. It was either snail-mailed to you or you received it in an e-mail or download. If all else fails, talk with whoever handled the purchasing to see what they have. They should have records or, at the very least, know who to talk to to find out.
Again thanks to John Ferringer for part of the content of this post. You should all go out and buy his book: The SharePoint 2007 Disaster Recovery Guide.
