DCPromo was unable to create a DNS delegation in the parent zone: %1. This could be because you do not have permissions to ...

DCPromo was unable to create a DNS delegation in the parent zone: %1. This could be because you do not have permissions to do so, or because the zone is hosted by a server that does not run Windows. To ensure that this domain controller can be found by other computers on the network, you must create a DNS delegation in the parent zone for this domain. To do so, contact an administrator who is responsible for the DNS zone: %1.
The error was: