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How do I find out the age of my AD 2003 Domain

I inherited management of an Active Directory 2003 domain.  How do I find out when the Domain became 2003 from whatever it was before?  I believe it was added to an NT4.0 domain.
1 Solution
Michael PfisterCommented:
You can search for dcpromo.log on your domain controllers. Depending on how the NT 4 domain was migrated to 2003 you may be able to retrieve some information from the log. At least you can see when each domain controller was promoted.

And maybe, very maybe you could look at the domain administrator account and see when it was created. I have no idea if this date is the right reference dat though..
Henrik JohanssonSystems engineerCommented:
Use ADSI Edit and expand Domain
Right-click domain name (DC=domain,DC=local or similar) and choose Properties and scroll down to the createTimeStamp value.
To verify the date of upgrade of functional level, check the createTimeStamp value when connecting to a functional specific object like DomainDnsZones partition in Server 2003 by right-clicking on top of tree and choose 'Connect to' and enter the manual path of DC=DomainDnsZones,DC=domain,DC=local (if root domain is domain.local) in 'Select or type a Distinguished Name or Naming Context'.
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