Hardening the Microsoft Windows Server 2008 operating system reduces the attack surface by disabling functionality that is not required while maintaining the minimum functionality that is required. When you install Microsoft Forefront Threat Management Gateway as part of the installation of Essential Business Server, the setup program automatically hardens the Windows Server 2008 operating system running on the Forefront TMG computer after the installation of Forefront TMG is completed by launching the Scwcmd.exe command-line tool with the following command