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Absolutely. &nbsp;You need to buy Windows Server (NOT SBS) CALs though for whatever edition you buy.
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Absolutely.  You need to buy Windows Server (NOT SBS) CALs though for whatever edition you buy.

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Thank You, I tried to accept both answers but the system did'nt let me.
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Thank You, I tried to accept both answers but the system did'nt let me.

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I have a 2003 SBS system. Can I put up a new server running Server 2008 R2 or Server 2012 with SQL Server and join it to my domain running on the 2003 SBS and have it function properly?
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I have a 2003 SBS system. Can I put up a new server running Server 2008 R2 or Server 2012 with SQL Server and join it to my domain running on the 2003 SBS and have it function properly?

Can Windows Server 2008 R2 or Server 2012 join 2003 SBS Domain

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).