Microsoft KB Archive/905262

= The installation process may fail when you try to install SQL Server 2000 Service Pack 4 =

Article ID: 905262

Article Last Modified on 9/10/2005

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APPLIES TO


 * Microsoft SQL Server 2000 Service Pack 4

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SYMPTOMS
When you try to install Microsoft SQL Server 2000 Service Pack 4 (SP4), the installation process may fail, and the following message may be written to the Replsys.out file:

Login failed for user ' '. Reason: Server is in single user mode. Only one administrator can connect at this time.



CAUSE
This problem occurs because another application, such as BMC Patrol, is trying to connect to the instance of SQL Server 2000 while you are installing SQL Server 2000 SP4.



WORKAROUND
To work around this problem, stop the services that try to connect to the instance of SQL Server 2000 before you install SQL Server 2000 SP4. If you cannot confirm which service you must stop, stop all services except the following.

Note Not all these services may exist on the computer.
 * Alerter
 * Cluster
 * Computer Browser
 * Event Log
 * License Logging
 * Logical Disk Manager
 * Messenger
 * Net Logon
 * NTLM Security Support Provider
 * Plug and Play
 * Remote Procedure Call (RPC) Locator
 * Remote Procedure Call (RPC)
 * Server
 * Print Spooler
 * TCP/IP NetBIOS Helper
 * Windows Time
 * Workstation

Note To restart the services that you stopped, restart the computer after the installation process has completed.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbprb KB905262

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