Windows Server 2008 build 5112

Windows Server 2008 build 5112 is the official Beta 1 build of Windows Server 2008, which was released to beta testers on 27 July 2005 via the Windows Vista Technical Beta Program along with its client counterpart.

This is also the first build of Windows Server to require ACPI support, as it is required by the new boot loader and trying to start Windows on a non-compliant system results in an error.

New features
This release comes with two user interfaces, these are the normal SKUs, which have a typical desktop, and "Core" versions of these SKUs, which are missing many programs, lack a GUI and they use a command-line shell based on Command Prompt instead.