Active Directory 2003 and Exchange Server 2003 Migration to Active Directory 2008 / 2012 and to Exchange Server 2010

Hi Friends,

I have Server 2003 Active Directory and Exchange Server 2003 in our environment.

We have about 2000 total users and 300 Exchange Mailbox overall.

Now my company planning to migrate Active directory 2003 to Active directory 2012 and Exchange Server 2003 to exchange Server 2010.

My big challenge is client doesn't want to migrate single object from old ADDS and exchange server.

Reason : They have many viruses and threats in their existing environment, and if we are making any 2008 OS server member of 2003 Active Directory server, on next reboot it gives blank screen, after that format is the only solution. We have checked it over internet with many blogs but we did not get any solutions.

Solution I have decided is as below:
1. Using ADMT Tool
2 . Using Power Shell and Batch Scripting.

1. ADMT Tool:
I had simulated it on VMWare and on our testing environment at site but I did not get success in migrating computer objects.
In live environment, I have faced many challenges to achieve it and finally client decided not to use it for AD Migration as we have limited downtime.

Please note: ADMT tool does not work with Server 2012, so I had used server 2008 ADDS and Exchange Server 2010 with base OS 2008.

2. Power-Shell and Batch Scripting:
With this option I have achieved all, instead migration I had created the same objects in to ADDS and Exchange Server

I have achieved followings:

On Active Directory:
1. Created, OUs and Sub OUs Structure
2. Created Computer Objects
3. Created all Groups (From Exchange Server ADDS power shell Snap in)
4. Created all Users with Group Memberships

On Exchange Server:
1. Created Exchange Mailbox Databases
2. Created all users Mailboxes who had PST configured on old outlook 2003
3. Harden the mailboxes features, like owa, oma enable / disable features...
4. Set Pictures of users...
Now my Big challenges are as follows:

1. We have 17 AVP's mailboxes, who doesn't have PST created and they have their mailbox online over exchange from past 9 years.
We cannot create PST because they do roaming across globe for business purpose.

I have decided to Use ADMT Tool with following steps given in below URL:

My simulated lab worked well with given steps..
I am newbie on Exchange Server Platform Should I follow above method?


2. Our client wants to deploy exchange server 2010 s per below:

A. Mailbox Server on different server (On ESXi VMWare Server 6.0)

B. CAS / Hub transport server role on different server (On ESXi VMWare Server 6.0)
Reason: CAS Server will be on public facing so we will keep it on DMZ as per PCI Audit requirements.

C. We will use Pine app Third party Application to use as Anti-spam emails, so do we need to configure Edge Transport role in our environment?

I have gone through many articles but everywhere I got CAS Cluster environment scenarios, we doesn't have any redundant Exchange Server as of now.

I am not sure which Role I need to keep with whom?
How to deploy exchange server with customized role installation?
How to configure auto-discover on exchange server?
How to deploy Certificate on CAS Server?
If I am installing Exchange server 2010 with base OS 2008 R2, can we upgrade base OS 2008 to server 2012 after that?

Anyone to help and guide me?

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The only best way to do this migration is upgrade AD to 2008 / 2012 and transition exchange from 2003 to 2010
The reason supplied by them is not viable, viruses can be cleaned up and this cannot be excuse.
What you are trying to do is not required, it can be done in case there are legal requirements (such as domain name changes etc) or if you wanted to move from exchange 2003 to exchange 2013 (cross forest migration)

To answer your questions:
You don't need edge transport server, you can route traffic from Hub transport to 3rd party ant spam server
You can use any hypervisor to host exchange VMs, just make sure that all physical server hardware configuration is same
Download exchange 2010 calculator and design your Exchange 2010 infrastructure, this will give you overview about how many servers are required and what is configuration.

Now check below complete series to find Exchange 2003 to Exchange 2010 Exchange transition

You cannot upgrade server OS once you installed Exchange

Exchange 2010 can leave happily with 2008 R2, U may install it on 2012 server (non R2)

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AmitIT ArchitectCommented:
Your requirement list is pretty long. I suggest you to get a consultant, who has migration experience and can help you in completing this migration. As far as, Exchange and AD is concern, it is pretty straight forward migration. Either you do transition in existing environment or perform cross-forest migration.

First you need to upgrade AD, I suggest you better go for 2008. Then go for 2012. If you want. Just adding new 2008 DC into current environment will be enough.

Exchange migration require some more work.  You can start from here:

As far as virus is concerned you need a good AV software, both at server and client end.
Try putting new servers into an OU that is protected from all group policies. It is possible that you have some group policies that are causing the problems.

Exchange migration is very expensive from both a labor and licensing/infrastructure perspective. For most organizations it is much cheaper and better to go to Office 365 instead.
JigneshRajguruAuthor Commented:
Thanks. you have answered my many queries...
JigneshRajguruAuthor Commented:

We had involved to Microsoft paid support on:
whenever we make any windows 8 system or server 2008 member of 2003 AD, on reboot it goes to blank screen..

Microsoft itself was unable to solved it, so for us cross-forest migration option is only left.

I had used ADMT tool for my purpose but again its having issue on AD migration but its working fine for  exchange server Mailbox Migration.

It's true that our client domain has many issues on group policies implementations and whenever we tried to resolved it Sysvol shared folder will become unstable and then it does not available to us. So we do not tried to touch it again...Again Same is updated to Microsoft Paid Support - they have just helped us to make sysvol folder stable, rest they do not have solution on it.

However, your given Solution has helped me. So many thanks to all of you for your interest and contribution..
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Windows Server 2003

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