You may receive an error message when you attempt to migrate user accounts by using the Windows 2000 ClonePrincipal support tool and any of the sample batch files: Sidhist.vbs, Clonepr.vbs, Cloneggu.vbs, Clonegg.vbs, or Clonelg.vbs.

The error messages vary depending on the account migration path.

When you attempt a Microsoft Windows NT to Windows 2000 migration, you may receive the following error message: When you attempt a Windows 2000 to Windows 2000 migration, you may receive the following error message:

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This issue can occur if the built-in account names in the source domain do not match the built-in account names in the destination domain. This behavior can occur if the built-in Administrator account was renamed in one of the domains. This issue also occurs if the built-in groups are named differently between the source and destination domains. When account names in the source domain and the destination domain are different, the ClonePrincipal tool attempts to create a duplicate security ID (SID), and the error messages occur.

This error may also occur when you are running the ClonePrincipal script for a user account that was previously imported, and then moved to a different organizational unit in Active Directory.

SIDhistory data is applied after the account is created, so the duplicate account is present even after the ClonePrincipal tool generates the errors and the migration is unsuccessful.

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To resolve this issue, follow these steps:

1.	Delete the duplicate user name that was created when the error was generated.
2.	Rename the account in either the source domain or the destination domain so that the built-in account name (or built-in group name) is the same for both the source and destination domains. It is recommended that you give the accounts the default name, for example, "Administrator."
3.	The built-in account may be safely renamed after the ClonePrincipal tool has applied the SIDhistory data to the built-in accounts.

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The sample batch files that are included in the Support Tools for ClonePrincipal do not contain any error checking capabilities.

The renamed built-in account is created as a new user. The SIDhistory function in Clonepr.dll attempts to apply the SID of the built-in source account to the brand new user, and not the built-in destination account. This operation is not successful because the SID already exists in the built-in destination account.

More information about the ClonePrincipal utility can be found in the Clonepr.doc file, that is included in the Windows 2000 Support Tools package. You can install the ClonePrincipal utility from the Windows 2000 Support Tools package.

More information about account migration and consolidation can be found in the Change and Configuration Management Deployment Guide that is located at the following Microsoft Web site:

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