This package provides the application for Dell Client System Update and is supported on Optiplex, Tablet, Precision and Latitude models that are running the following Windows Operating Systems: XP, VISTA (32/64-bit), Windows 7 (32/64-bit) and Windows 8 (32/64-bit).

1.Dell Client System Update 1×1 Tool is a stand-alone application that provides a Windows Update like experience for Dell Business Client platforms.
2.The application provides the ability to retrieve and update systems software released by Dell.
Note: The updates offered and provided by this tool may be a subset of the updates offered on Dell’s support website.

link: http://www.dell.com/support/drivers/us/en/19/driverdetails?driverid=MJH8R