demoting DC/AD Server 2000, and joining to another domain running Server 2008 Standard

Currently have two domains in our network. I would like to get it down to one, with one active directory.

The server that needs to be moved is running Server 2000.  It has Active Directory installed and is performing DNS. The other server is 2008 Standard which also has AD/DNS/DHCP, and is a file server/print server as well. The older server is really only hosting MAS90 which all of our clients use. Because the clients are all joined to the newer server's domain, we have authentication errors in the mapped drives to the old server. I need to get the old server on the new domain and use the newer machine's AD to authenticate shares.

Is this as simple as demoting the old server and joining the new domain, or do I need to uninstall DNS, AD, and transfer FSMO roles?

Thanks for the look.
riley71Asked:
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remmett70Connect With a Mentor Commented:
DCPromo will require a reboot once completed.  During the demotion, you will be given the chance to set the password for the local administrator account of the server.
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remmett70Commented:
Since they are separate domains, you won't need to worry about FSMO roles.  So Demote the 2000 server and once it is a stand-alone server.  You add it to the new domain as a member server.  
 
You will need to apply the share and file permissions of the new domain to the 2000 server once it is part of the new domain.
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riley71Author Commented:
Perfect. That is what I was hoping. Does the DCpromo command require a restart? And if so, how do I guarantee access back into the server afterward? Or can I demote and join the new domain immediately?
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riley71Author Commented:
Great! Thanks. I will be performing the demotion in a couple of hours.
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