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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:
(http://support.microsoft.com/kb/256986/ )Description of the Microsoft Windows Registry
In Microsoft Windows Server 2003, startup may take longer than usual and you may receive the following error message:
Note If Microsoft Background Intelligent Transfer Service (BITS) has any pending jobs, BITS will be set to automatically start at startup, and you may notice this behavior.
At least one of services or driver failed during system startup. Use Event Viewer to examine the event log for details.
This behavior occurs because of a race condition. In Windows Server 2003, BITS depends on the EventSystem service. Therefore, if BITS starts before the EventSystem service starts, BITS tries to start the EventSystem service and then waits until the EventSystem service starts. However, even after the timeout period (typically, 80 seconds), if the EventSystem service does not start, the Service Control Manager (SCM) causes BITS to timeout and then adds a message in the event log. Then, you receive the "At least one of services failed to start" error message in the SCM that is mentioned in the "Symptoms" section. After you receive this error message, the EventSystem service may start, and BITS may enter the "Running" state. Because of this behavior, startup may take longer (typically, two minutes more) than usual.
To resolve this behavior, add the EventSystem service to the list of dependencies for BITS. If you add the EventSystem service to the list of dependencies for BITS, BITS will start only after the EventSystem service starts. To use the Service Control utility (Sc.exe) to add the EventSystem service to the list of dependencies for BITS, follow these steps:
This behavior is by design. This behavior does occur in Windows Server 2003 Service Pack 1 (SP1).
BITSBITS is a service that asynchronously transfers files between a client and an HTTP server. BITS transfers files in the background.
sc config bits depend= rpcss/eventsystemWhen you run this command, Sc.exe changes the value of the following REG_MULT_SZ type registry entry:
The new value of this registry entry is as follows:
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.
If you use Registry Editor to make these changes to your Windows registry, type one dependent service on each line in the Value data box of the Edit Multi-String dialog box.
Note If you use Registry Editor to make these changes, you must restart your computer for the changes to take effect.
For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/818746/ )Background Intelligent Transfer Service in Windows Server 2003 white paper
331716For more information, visit the following Microsoft Developer Network (MSDN) Web sites:
(http://support.microsoft.com/kb/331716/ )List of known issues for Background Intelligent Transfer Service (BITS)
Background Intelligent Transfer Service
Service Control Manager
Service Control Utility
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