Article ID: 285883
Article Last Modified on 10/28/2006
APPLIES TO
- Microsoft Exchange Server 5.5 Standard Edition
This article was previously published under Q285883
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
SYMPTOMS
When you install Exchange Server 5.5 on a server that is running either Microsoft Windows 2000 or Microsoft Windows NT 4.0, you may receive the following error message:
CAUSE
This issue can occur if the automatic administrative logon functionality is enabled. This functionality is enabled if the following if the registry value is set to 1:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoAdminLogon
Some programs enable this functionality by default to facilitate long or complicated installation routines. You can also enable this functionality manually.
For additional information about how to enable this functionality manually, click the article numbers below to view the articles in the Microsoft Knowledge Base:
97597 How to Enable Automatic Logon in Windows NT 3.x and 4.0
97597 How to Enable Automatic Logon in Windows 2000
RESOLUTION
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To resolve this issue:
- Start Registry Editor (Regedt32.exe).
- Locate and click the following key in the registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoAdminLogon
- Double-click AutoAdminLogon, and then type O in the Data box.
- Quit Registry Editor.
- Log off of the server.
- Log back on using the appropriate account to install Exchange Server 5.5.
- Restart Exchange Server 5.5 Setup.
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