The Migration Wizard in Microsoft Exchange 2000 Server Service Pack 1 (SP1) and in later versions of Exchange includes the ability to migrate user accounts and mailboxes from Microsoft Exchange Server 5.5 to a native-mode Microsoft Exchange Server 2003 organization or to a native-mode Exchange 2000 organization.
The table in the "More Information" section describes how accounts and mailboxes are created and mapped during migration. You can migrate accounts and mailboxes whether or not the Active Directory Connector (ADC) is installed. If the ADC is installed, it must be configured with inter-organizational connection agreements. The Exchange Migration Wizard is not designed for use in a single Exchange organization.
Additionally, the ADC must be configured to create contacts in the Active Directory directory service.
Changes that the Migration Wizard makes if the ADC is not installed
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| Source Windows account | New mailbox | New Windows account | Security identifier (SID) | Comments |
|---|
| Microsoft Windows NT 4.0 | Yes. | User account that is disabled. | MsExchMasterAccountSID. | A user who is logged on to Windows NT 4.0 will be able to log on to the new Exchange 2000 or Exchange 2003 mailbox. |
| Microsoft Windows 2000 Server or Microsoft Windows Server 2003 | Yes. | No. | None. | The user will have access to both mailboxes. |
| Windows NT 4.0 resource | Yes. | User account that is disabled. |
MsExchMasterAccountSID.
Set SELF.
The Windows NT 4.0 account
has access to the mailbox. | None. |
| Windows 2000 Server or Windows Server 2003 resource | Yes. | User account that is disabled. |
MsExchMasterAccountSID.
Set SELF.
The Windows account has access to the mailbox. | None. |
| None | Yes. | User. | None. | None. |
| Windows NT 4.0 with no trust configured | Yes. | User account that is disabled. | MsExchMasterAccountSID. | Trust is required to log on to the mailbox. |
Changes that the Migration Wizard makes if the ADC is installed
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| Source Windows account | New mailbox | New (target) Windows account | SID | Comments |
|---|
| Windows NT 4.0 and Windows 2000 Server or Windows Server 2003 ADC objects | Yes. | User account that is disabled. | MsExchMasterAccountSID. | The account will duplicate the accounts in Active Directory unless the contacts are configured. |
| Windows 2000 Server or Windows Server 2003 | Yes. | No. | MsExchMasterAccountSID. | The account will match users by SID. |
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