Windows Small Business Server 2008 Standard / Premium (64-bit);
Windows Small Business Server 2011 Essentials / Standard (64-bit);
Microsoft Small Business Server 2011 Standard (64-bit) is supported only if Service Pack 1 for Microsoft Windows Server 2008 R2 is installed
Windows MultiPoint Server 2011 (64-bit);
Windows Server 2008 Standard / Enterprise / Datacenter Service Pack 2 or later;
Windows Server 2008 R2 Foundation / Standard / Enterprise / Datacenter Service Pack 1 or later;
Windows Server 2012 Foundation / Essentials / Standard / Datacenter;
Windows Server 2012 R2 Foundation / Essentials / Standard / Datacenter;
Windows Server 2016 Essentials / Standard / Datacenter;
Windows Server 2019 Essentials / Standard / Datacenter.
For details about support for the Microsoft Windows Server 2016 and Microsoft Windows Server 2019 operating systems, please refer to the Technical Support Knowledge Base.