Microsoft has released the new version of their Remote Server Administration Tools for Windows 8 includes Server Manager, Microsoft Management Console (MMC) snap-ins, consoles, Windows PowerShell cmdlets and providers, and command-line tools for managing roles and features that run on Windows Server 2012. In limited cases, the tools can be used to manage roles and features that are running on Windows Server 2008 R2 or Windows Server 2008. Some of the tools work for managing roles and features on Windows Server 2003.
You can download the tools here.