I have an SBS 2011 server in an office running a domain and I want to add an additional server running SBS 2003 that would only be used to run and serve accounting software.

I have learned that two SBS servers cannot co-exist on the same network. Despite this, I would like to find a way to make this work.

I was advised to shut down all services on the SBS 2003 server, but I would like to get more opinions before implementing a solution.


  • 4
    Why not just use normal Server 2003 (Leaving aside arguments about how old 2003 is...) on your second server? – Dan Oct 3 '13 at 12:37
  • @Dan probably cost. That's the main reason I see people trying to do ugly things like this - to save a buck. – MDMarra Oct 3 '13 at 12:48
  • @Dan sbs2003 was the first server that was upgraded with sbs2011. So instead of buying new windows server license, paying for new acc. software installation I wanted to use the old server as accounting server. Is there a way to make this happen inside one domain. If not what are the alternative (move box outside office and use DNS fowarding, stop services and set in inside same domain). Solutions please for existing situation – John Oct 3 '13 at 13:12
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    @MDMarra i explained my reasoning to Dan – John Oct 3 '13 at 13:12

You can have the second SBS server on the same physical LAN, just not in the same domain. So build/rebuild the 2003 SBS as a new AD domain in your existing LAN.

Don't confuse "network" with "AD domain". It's a great idea if they're the same/overlapping, but in this situation, this is what will work best for you if you don't have the money to do this correctly.

  • Certainly there's more to be considered than this. For example, placing two default-build SBS servers of any version on the same LAN will result in two DHCP servers in the environment. IMHO, there's no difference between not having the money to install a proper network and not having the money to fix an improperly installed network. – I say Reinstate Monica Oct 18 '14 at 14:05

You cannot have more than one SBS on a domain. If you need an additional server you should purchase a full Windows Server SKU.

How should you decide if SBS is the right choice? You can have only one SBS server and only one domain


  • 11
    If you know that you cannot have more than one SBS server per network, why are you asking how you can have more than one SBS server per network? In this case, the answer is clearly "You don't. Buy a full version of Windows Server." – MDMarra Oct 3 '13 at 13:16
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    Let's clarify - you can have the second SBS server on the same physical LAN, just not in the same domain. – mfinni Oct 3 '13 at 13:31
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    "You are not really helping" - I'd say that telling someone that they're asking for the impossible is helping and it's a little ungrateful of you to say otherwise. Would it honestly be more help to you to be lied to, and only find out after you'd spent money on a 'solution' that wasn't going to work? – Rob Moir Oct 3 '13 at 13:38
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    You install them as different Active Directories. – MDMarra Oct 3 '13 at 13:45
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    You configure them so that they are not on the same Active Directory domain. I don't know how to say it any more clearly. – MDMarra Oct 3 '13 at 13:55

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