An update to prevent a Background Intelligent Transfer Service (BITS) crash on a Windows Vista-based computer

View products that this article applies to.

Note If you are experiencing the symptoms that are described this article, see the following Microsoft Knowledge Base article to resolve these symptoms:

940520 (http://support.microsoft.com/kb/940520/ ) The host process for Windows Services stops working after you download Microsoft updates on a computer that is running Windows Vista

The update that is described in this article prevents the symptoms that are described in this article. However, you cannot use this update to recover from symptoms that you are experiencing.

SYMPTOMS

When updates are being downloaded from Windows Update on a Windows Vista-based computer, you may experience the following symptoms:

A dialog box appears that indicates that the host process for Windows Services has stopped working.
After you restart the computer, you receive the following error message in a Windows Update dialog box:
Some Updates were not installed
Failed: xx updates
Error(s) Found:
Code 800706BA
An event that resembles the following is logged in the Application log:
Event Type: Error
Event Source: Application Error
Event Category: None
Event ID: 1000
Date: date
Time: time
Computer: computer name
User: N/A
Description: Faulting application svchost.exe_BITS, version 6.0.6000.16386, time stamp 0x4549adc4, faulting module qmgr.dll, version 7.0.6000.16386, time stamp 0x4549bd9f, exception code 0xc0000005

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This problem occurs because the Background Intelligent Transfer Service (BITS) state files are corrupted. This problem stops the host process for Windows Services. This behavior prevents you from using BITS to transfer files.

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RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

935791 (http://support.microsoft.com/kb/935791/ ) How to obtain the latest Windows Vista service pack

Hotfixes and security updates that are included in SP2 for Windows Vista Service and for Windows Server 2008

For more information about the hotfixes and the security updates that are included in SP2 for Windows Vista and for Windows Server 2008, visit the following Microsoft TechNet Web site: -

http://technet.microsoft.com/en-us/library/dd335033.aspx (http://technet.microsoft.com/en-us/library/dd335033.aspx)

Note: Currently, the list of hotfixes and security updates is available only in English. An update is available to prevent a BITS crash on a Windows Vista-based computer.

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Update information

An update is available to prevent a BITS crash on a Windows Vista-based computer. The following files are available for download from the Microsoft Download Center:

Windows Vista, 32-bit versions

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Download the 939159 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=D8F9D963-5D01-411F-BBA2-B57FE0D4204C&displaylang=en)

Windows Vista, 64-bit versions

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Download the 939159 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=2ED66BB5-8496-4B45-8725-D58629950E69&displaylang=en)

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 (http://support.microsoft.com/kb/119591/ ) How to obtain Microsoft support files from online services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you install this update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, 32-bit versions

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File name	File version	File size	Date	Time	Platform
Update-bf.mum	Not applicable	1,746	26-Jul-2007	18:43	Not applicable
X86_95f9025e940221ff71b90bbcb12b5997_31bf3856ad364e35_6.0.6000.20647_none_41ed808d1593c68c.manifest	Not applicable	699	26-Jul-2007	18:43	Not applicable
X86_f1479b2110873990b2b9a281e8db3e25_31bf3856ad364e35_6.0.6000.16531_none_d1c8c5ebd7c90b15.manifest	Not applicable	699	26-Jul-2007	18:43	Not applicable
X86_microsoft-windows-bits-client_31bf3856ad364e35_6.0.6000.16531_none_218b14e6fc62ea9e.manifest	Not applicable	122,081	26-Jul-2007	18:43	Not applicable
X86_microsoft-windows-bits-client_31bf3856ad364e35_6.0.6000.20647_none_220fe38215833e63.manifest	Not applicable	122,081	26-Jul-2007	18:43	Not applicable
Qmgr.dll	7.0.6000.16531	750,080	25-Jul-2007	03:21	x86
Qmgr.mof	Not applicable	2,302	07-Jan-2007	05:31	Not applicable
Qmgr.dll	7.0.6000.20647	750,080	25-Jul-2007	03:14	x86
Qmgr.mof	Not applicable	2,302	07-Jan-2007	05:31	Not applicable

Windows Vista, 64-bit versions

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File name	File version	File size	Date	Time	Platform
Amd64_268de7d1b3950bd78d4ec43e395c8e0d_31bf3856ad364e35_6.0.6000.20647_none_2fcba980449d77e2.manifest	Not applicable	703	26-Jul-2007	18:43	Not applicable
Amd64_cba080dad87678f379b404d4c9060151_31bf3856ad364e35_6.0.6000.16531_none_7643f907f44a851e.manifest	Not applicable	703	26-Jul-2007	18:43	Not applicable
Amd64_microsoft-windows-bits-client_31bf3856ad364e35_6.0.6000.16531_none_7da9b06ab4c05bd4.manifest	Not applicable	122,137	26-Jul-2007	18:47	Not applicable
Amd64_microsoft-windows-bits-client_31bf3856ad364e35_6.0.6000.20647_none_7e2e7f05cde0af99.manifest	Not applicable	122,137	26-Jul-2007	18:47	Not applicable
Update-bf.mum	Not applicable	1,756	26-Jul-2007	18:43	Not applicable
Qmgr.dll	7.0.6000.16531	1,039,872	25-Jul-2007	04:29	x64
Qmgr.mof	Not applicable	2,302	07-Jan-2007	05:39	Not applicable
Qmgr.dll	7.0.6000.20647	1,039,360	25-Jul-2007	04:16	x64
Qmgr.mof	Not applicable	2,302	07-Jan-2007	05:32	Not applicable

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.

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