From: https://technet.microsoft.com/en-us/library/cc770266(v=ws.10).aspx

Refers to windows server 2008 

How to install Windows Server Backup

To access backup and recovery tools for Windows Server 2008, you must install the Windows Server Backup, Command-line Tools, and Windows PowerShell items that are available in the Add Features Wizard in Server Manager. This installs the following tools:
Windows Server Backup Microsoft Management Console (MMC) snap-in 

Wbadmin command-line tool

Windows Server Backup cmdlets (Windows PowerShell commands)