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Active Directory Migration Tool versions and supported environments

Published: June 1, 2010

Updated: June 28, 2010

Applies To: Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2

This topic explains the different versions of the Active Directory Migration Tool (ADMT) that are available. It provides links to download each version, and explains requirements for installing them, the supported environments that they can be used in, and how they work with certain Active Directory features in Windows Server.

ADMT version

Installation platform

Source domain requirements

Target domain requirements

Supported computer migration objects

ADMT v3.0 (http://go.microsoft.com/fwlink/?LinkID=68791)

Windows Server 2003

Source domains can contain domain controllers that run Windows NT, Windows 2000 Server, or Windows Server 2003. No minimum domain functional level is required for a source domain.

Minimum target domain functional level is Windows 2000 native.

Migrates computers that run Windows 2000 Professional, Windows XP, Windows NT 4, Windows 2000 Server, and Windows Server 2003.

ADMT v3.1 (http://go.microsoft.com/fwlink/?LinkId=121732)

Windows Server 2008

Source domains can contain domain controllers that run Windows 2000 Server, Windows Server 2003, or Windows Server 2008. No minimum domain functional level is required for a source domain, but ADMT v3.1 cannot be used to migrate objects from Windows NT 4 domains.

Minimum target domain functional level is Windows 2000 native.

If target domain has domain controllers that run Windows Server 2008 R2, use ADMT v3.2.

Note
There are known issues when you use ADMT v3.1 to migrate objects to a domain that has Windows Server 2008 R2 domain controllers. For more information, see article 976659 in the Microsoft Knowledge Base (http://go.microsoft.com/fwlink/?LinkId=182290).

Migrates computers that run Windows 2000 Professional, Windows XP, Windows Vista, Windows 7, Windows 2000 Server, Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2.

ADMT v3.2 (http://go.microsoft.com/fwlink/?LinkId=186197)

Windows Server 2008 R2

Minimum source domain functional level is Windows Server 2003.

Minimum target domain functional level is Windows Server 2003.

Migrates computers that run Windows XP, Windows Vista, Windows 7, Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2.

Support for Windows Server features

No versions of ADMT can be installed on a read-only domain controller (RODC) or a Server Core installation. An RODC cannot be used as a source or target domain controller for migration.

In addition, ADMT v3.2 provides the following support for new Active Directory features in Windows Server 2008 R2.

Feature

Impact of using ADMT v3.2

Managed service accounts

Can be migrated by using use the Managed Service Account Migration Wizard or the admt managedserviceaccount command.

Authentication Mechanism Assurance

User accounts that are enabled for Authentication Mechanism Assurance need to be migrated by using an include file

Important

The User Principal Name (UPN) is changed when a user is migrated, which prevents Authentication Mechanism Assurance from working. To work around this issue, you need to keep a record of the UPNs of user accounts that are enabled for Authentication Mechanism Assurance and migrate them using an include file. In an include file, you can specify the targetUPNs for these users to be migrated. This way you can override the UPNs in that target domain with the original UPNS from the source domain. For more information about using an include file, see Use an Include File.

Offline Domain Join

No impact

Active Directory Recycle Bin

No impact

Windows PowerShell

Not incorporated into ADMT v3.2

Change History

Date	Revision
June 24, 2010	Original publication
June 28, 2010	Windows 7 and Windows Server 2008 R2 were added to the list of supported operating systems for computer migration objects for ADMT v3.1.

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