The short answer is, almost all Windows (INCLUDING Windows 7 HOME – see the last paragraph in this message for details) and Mac operating systems; the long answer is:

Operating system Supported Domain Join
Windows 7 Ultimate, Professional, Enterprise (x86 and x64) Yes Yes
Windows 7 Home Premium, Basic, Starter (x86 and x64) Yes No
Windows Vista Ultimate, Business, Enterprise SP2 (x86 and x64) Yes Yes
Windows Vista Home Premium, Basic, Starter SP2 (x86 and x64) Yes No
Windows XP Professional SP3 x86 Yes Yes
Windows XP Professional SP2 x64 No No
Windows XP Home SP3 Yes No
Windows XP Media Center Edition Yes No
MAC OS X Leopard, Snow Leopard
“Lion” support is coming soon
Yes No


Windows Vista and 7 Home editions can connect to Essentials network via the connect computer wizard and benefit from some of the Essentials feature like client backup, health monitoring etc. But Home Edition will not support domain-join and will not support Remote Web Workplace (RWW, which is now called RWA).


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