I don't have the book, so I may be wrong about what you're trying to do, but there's a fair chance you need the ASPNET account.
On Win2000, that's the account used by ASP.NET while the Network Service account is used on Server 2003.
HtH,
Imar
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Imar Spaanjaars
Everyone is unique, except for me.
Author of
ASP.NET 2.0 Instant Results and
Beginning Dreamweaver MX / MX 2004