The installer installs from the file specified in the command line options below where 'file' denotes the file to install ...

The installer installs from the file specified in the command line options below where 'file' denotes the file to install from. If the option is not specified, it downloads the file from the internet and installs. If the option is not applicable to the current operating system, it ignores it. /SQLNCli:file - Install Microsoft SQL Server 2008 R2 SP1 Native Client from file