I don't understand why so many people try to hack this into place when M$ provides the SysPrep and Setupcl tools. All you need is to put the info in the SysPrep.inf file and you're good to go.
If you Ghost (TM) images, it is imperative that each PC have a unique SID and while different ghosting software have their own SID changer, M$ will only support SysPrepped builds.
To learn more about SysPrep, search TechNet for "Automating Windows 2000 Deployments with Sysprep".
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