http://support.microsoft.com/kb/285034
or if the problem persists, you'll likely need to perform an in-place
upgrade.
How to Perform an In-Place Upgrade of Windows 2000
http://support.microsoft.com/default.aspx?kbid=292175
What an In-Place Windows 2000 Upgrade Changes and What It Does Not Change
http://support.microsoft.com/default.aspx?kbid=306952
Be sure to apply these to your repair install before connecting to any
network. Internet included. (sasser, msblast)
http://download.microsoft.com/download/E/6/A/E6A04295-D2A8-40D0-A0C5-241BFECD095
E/W2KSP4_EN.EXE
http://www.microsoft.com/technet/security/bulletin/MS03-043.mspx
http://www.microsoft.com/technet/security/bulletin/MS03-049.mspx
Then
Rollup 1 for Microsoft Windows 2000 Service Pack 4
http://www.microsoft.com/downloads/details.aspx?amp;displaylang=en&familyid=B547
30CF-8850-4531-B52B-BF28B324C662&displaylang=en

Signature
Regards,
Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect
> I have restored a recent SYSTEM file from a Hive backup and can get on now
> as Administrator. The main problem is there appears to be no DNS lookup
[quoted text clipped - 32 lines]
> Any help appreciated.
> Barry.
Barry - 30 Mar 2008 22:42 GMT
Hi,
Fixed it.
Turned out to be a residual install of ZoneAlarm from the restored hive. No
icon in the tray indicating it was there but it was installed.
As soon as I uninstalled it, DNS started working again.
Very useful to know about the In-Place Upgrade; discovered this also works
with a new motherboard installed - very handy for rebuilds.
Thanks.
Barry.
> http://support.microsoft.com/kb/285034
>
[quoted text clipped - 54 lines]
>> Any help appreciated.
>> Barry.
Dave Patrick - 31 Mar 2008 00:18 GMT
You're welcome.

Signature
Regards,
Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect
> Hi,
>
[quoted text clipped - 10 lines]
> Thanks.
> Barry.