How to Add OEM Plug and Play Drivers to Windows XP

This article describes the steps required to add original equipment manufacturer (OEM)-supplied drivers to Microsoft Windows installations. This article includes only those drivers that are typically installed during graphical user interface (GUI)-mode Setup or post-Setup by standard Plug and Play enumeration. This permits you to pre-load OEM Plug and Play drivers that you can use later, when the associated hardware is introduced in the system.

http://support.microsoft.com/kb/314479