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Again many thanks for the excellent advice
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Again many thanks for the excellent advice

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We have a domain that has 3 Windows 2003 domain controllers. The main DC has DNS installed which is active directory integrated. I need to remove the main DC from the domain as I will be installing a new DC and moving all DC's to windows 2008. My concern is that if I DCPROMO the main DC it will uninstall the DNS as well and I will lose my DNS. Is there a correct procedure for doing this?
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We have a domain that has 3 Windows 2003 domain controllers. The main DC has DNS installed which is active directory integrated. I need to remove the main DC from the domain as I will be installing a new DC and moving all DC's to windows 2008. My concern is that if I DCPROMO the main DC it will uninstall the DNS as well and I will lose my DNS. Is there a correct procedure for doing this?

Removing Domain Controller from Windows 2003 domain

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.