If you are running Vista or Win7, pnputil is very powerful. http://msdn.microsoft.com/en-us/library/ff550419(v=vs.85).aspx
PnPUtil (PnPUtil.exe) is a command line tool that lets an administrator perform the following actions on driver packages:
1) Adds a driver package to the driver store.
2) Deletes a driver package from the driver store.
3) Enumerates the driver packages that are currently in the driver store. Only driver packages that are not in-box packages are listed. An in-box driver package is one which is included in the default installation of Windows or its service packs.