Microsoft KB Archive/249280

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XADM: Error When Joining an Existing Site Running on Windows 2000

Article ID: 249280

Article Last Modified on 10/27/2006



APPLIES TO

  • Microsoft Exchange Server 5.5 Standard Edition



This article was previously published under Q249280

SYMPTOMS

You receive the following error message when you are running Exchange Server Setup to join a site that is running on Microsoft Windows 2000 Server:

No mapping between account names and security IDs was done.
Microsoft Windows NT
ID no: 0xc0020534


You receive this error after entering the password for the Exchange Server service account.

CAUSE

Exchange Server 5.5 only recognizes account entries in the format of Domain\Account, not in the Account@Domain.com format.

RESOLUTION

To resolve this issue, you must change the Log On account for each of the Exchange Server services from the Account@Domain.com format to the Domain\Account format. To do so, on the Windows 2000 computer that is running Exchange Server:

  1. Open Services from the Administrative Tools program group.
  2. Double-click on each of the Exchange Server services.
  3. Click the Log On tab.
  4. In the This account field, change the account to the Domain\Account format.

The domain in the Domain\Account format is the NetBIOS domain name.

The account must be manually typed in in this format, because Windows 2000 automatically enters the account name in the Account@Domain.com format.

After you complete the preceding steps, you can complete the installation of Exchange Server 5.5, and join the site successfully.

Keywords: kbprb KB249280