Product Documentation for Microsoft SQL Server 2012 for firewall and proxy restricted environments
The Microsoft SQL Server 2012 setup installs only the Help Viewer and related components for managing Help settings.
Setup does not directly install any documentation. All of the SQL Server documentation is available online. For more information on installing SQL Server product documentation behind a firewall.
Users who want a local help experience can download the documentation in one of two ways after using SQL Server Setup to install the help viewer and related components