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Try running setup.com /preparealldomain option in Parent DC.
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Try running setup.com /preparealldomain option in Parent DC.

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Where is the setup.com file?
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My exchange 2007 CCR cluster is a member of child.parent.com. I am wanting to create accounts in parent.com. I am unable to selece this option when creating accounts. What do i need to change?
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My exchange 2007 CCR cluster is a member of child.parent.com. I am wanting to create accounts in parent.com. I am unable to selece this option when creating accounts. What do i need to change?

Exchange 2007 server is not able to create accounts in the parent domain.

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.