Installing Exchange 2003 Active Directory Connector

5 pts.
Tags:
Active Directory
Active Directory Connector
Domain Administrator
Domain Controller
Enterprise Administrator
Exchange 2003
Schema Administrator
Windows Server 2003
We are upgrading our NT domain to Active Directory. This domain is required to be a part of an existing forest. After we upgrade the domain controller to Windows 2003, we would need to install the Active Directory Connector. Because there are numerous Windows NT BDCs, it would not be possible to upgrade them all at once and convert this domain to Native Mode immediately. However, we are unable to install the ADC. ADC requires an account that is a Domain Administrator, Schema Administrator and Enterprise Administrator. I tried using an Enterprise/Schema Administrator account for ADC, but it gave me an error that the account needed to be local to the domain. I then tried to create an ADC service account in the domain in question, but I am unable to add it to the Enterprise/Schema Admins groups. When I add the account, it says because the account comes from a Mixed Mode domain, it will not work. So I can't add the account directly to these groups, and I don't see a way of nesting the account in a group that is part of Enterprise/Schema Admins. Is there a way to make the ADC work? If it is not possible, what will be the drawback to running without the ADC until the domain can be converted to Native Mode? Thanks

Answer Wiki

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well in this case you better setup a new forest of the same name , and migrate all your servers to the new domain , you can try to upgrade, but later on you will encounter many problems,
the simplest and easy way is to implement the new insfratructure and migrate all the users to the
new domain. and yes when you install server 2003 the the default operational level is : 2000 mixed mode. you can raise them but cannot revert back !

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