Granting permissions to "NETWORK AUTHORITY"

From: Brian Cline (clib_at_gptruck.com)
Date: 05/27/05 

Date: 27 May 2005 04:50:36 -0700

The other morning I dcpromo'd our internal web server (Win2003 Server,
IIS6), and after I did this my IIS6 sites all began requiring
authentication since the anonymous account failed, giving me 401.1
errors. Two messages appear in my application event log:

IISADMIN service failed to verify anonymous/wam account
DOMAIN\IUSR_SERVER. Some IIS functions can fail for this reason.

Error: The Template Persistent Cache initialization failed for
Application Pool 'DefaultAppPool' because of the following error: Could
not create a Disk Cache Sub-directory for the Application Pool. The
data may have additional error codes..

I tried following the directions on
http://support.microsoft.com/d­efault.aspx?scid=kb;en-us;3320­97, but
when I try to grant permission to "NETWORK SERVICE", it tells me that
there is no such object.

How can I grant those permissions in Q332097 to network service? Any
help is appreciated here.

Thanks,
Brian Cline