Hmm, no, it's likely to appear again and goes back to suggesting configuration in AD.
Just to verify, it's reappearing with "DsIntegrated: 1" in the registry?
There aren't many references to the zone itself in AD. We could potentially check the other two areas for the zone, wouldn't hurt to look.
1. Open ADSIEdit.msc (Start / Run)
2. Select "ADSI Edit"
3. Right click and select "Connect to..."
4. Enter the name ForestDNSZones
5. Select "Select or type a Distinguished Name or Naming Context"
6. Enter DC=ForestDNSZones,DC=yourdomain,DC=com. This assumes your forest root / domain is called yourdomain.com
7. Press OK
8. Expand ForestDNSZones
9. Expand MicrosoftDNS
The same can be done for DomainDNSZones.
Chris