Windows Server 2012 R2 Essentials supports up to 25 users and optionally includes Exchange Server for in-house mail management. It also supports Microsoft's Hyper-V virtualization software.

Microsoft has announced that Windows Server 2025, the latest version of its server operating system, is generally available starting Friday, November 1st.

(1) See Windows Server Essentials. (2) A suite of free Windows desktop applications from Microsoft. Essentials includes email and calendar (Mail), a photo organizer and editor (Photo Gallery ...