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Thanks flyguybob,<br />
<br />
But adding a 2003 server as DC, will make the domain environment mixed.<br />
Is there any risk in doing that?<br />
if not, should I make them as GC?<br />
<br />

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Thanks flyguybob,

But adding a 2003 server as DC, will make the domain environment mixed.
Is there any risk in doing that?
if not, should I make them as GC?



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1 - It is possible to run Exchange 2003 on a Windows 2000 AD environment or even an AD environment with Windows 2000/2000 AD. &nbsp;It's your call regarding what to do, but it does not matter on the Exchange side. &nbsp;It's not mixed as in E5.5/2000 or E5.5/2003 or AD2000/2003.<br />
<br />
2 - If you can make a DC a GC, definitely do so as it will help keep the GC lookups local to that site/subnet, provided the subnet and site have been configured.<br />
<br />
3 - Avoid installing Exchange on a domain controller. &nbsp;If you get the itch to do this, consider using Virtual Server or VMWare and install the domain controller as a Virtual machine. &nbsp;In a small environment this does not take much overhead.
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1 - It is possible to run Exchange 2003 on a Windows 2000 AD environment or even an AD environment with Windows 2000/2000 AD.  It's your call regarding what to do, but it does not matter on the Exchange side.  It's not mixed as in E5.5/2000 or E5.5/2003 or AD2000/2003.

2 - If you can make a DC a GC, definitely do so as it will help keep the GC lookups local to that site/subnet, provided the subnet and site have been configured.

3 - Avoid installing Exchange on a domain controller.  If you get the itch to do this, consider using Virtual Server or VMWare and install the domain controller as a Virtual machine.  In a small environment this does not take much overhead.

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<div class="content wysiwyg-content">
Hi,<br />
I have 3 domains, each in different site, and each is having an Administrative Group. And connected through SMTP connector to HQ site.<br />
We want to upgrade to Exchange 2003 Enterprise, I want to know the best way for migrating with minimum downtime required, and if it is prefered to have a 2003 DC in each site and the forest or NO.<br />
<br />
Thanks
</div>
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Hi,
I have 3 domains, each in different site, and each is having an Administrative Group. And connected through SMTP connector to HQ site.
We want to upgrade to Exchange 2003 Enterprise, I want to know the best way for migrating with minimum downtime required, and if it is prefered to have a 2003 DC in each site and the forest or NO.

Thanks

Exchange 2000 migrate to Exchange 2003

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.