Microsoft Active Directory Migration Tool 3.1

The Active Directory Migration Tool simplifies the process of migrating objects and restructuring tasks in an Active Directory Domain Service (AD DS) environment.
The name ADMT stands for Active Directory Migration Tool.You can use ADMT to migrate users, groups, and computers between AD DS domains in different forests (inter-forest migration) or between AD DS domains in the same forest (intra-forest migration).
ADMT can also perform security translation (to migrate local user profiles) when performing inter-forest migrations.
NOTE:
- ADMT can be installed on any computer capable of running the Windows Server 2008 operating system, unless they are Read-Only domain controllers or in a Server Core configuration.
- Target domain: The target domain must be running either Windows 2000 Server or Windows Server 2003 or Windows Server 2008
Source domain: The source domain must be running Windows 2000 Server, Windows Server 2003, or Windows Server 2008
- The ADMT agent, installed by ADMT on computers in the source domains, can operate on computers running Windows 2000 Professional, Windows 2000 Server, Windows XP, Windows Server 2003, Windows Vista, and Windows Server 2008.