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A domain user account that has a blank password cannot be used to authenticate against Microsoft SharePoint Server 2010 or against Windows Live SkyDrive


View products that this article applies to.

Symptoms

You have a domain user account that has a blank password. You use the domain user account to log on to a client computer that is running Windows 7 or Windows Server 2008 R2. However, you cannot use the domain user account to authenticate against Microsoft SharePoint Server 2010. Therefore, the client computer cannot communicate with the server to upload or download files.

Note This issue also occurs when you try to use the domain user account to authenticate against the Windows Live SkyDrive.

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Cause

This issue occurs because the Windows Web Services API incorrectly interprets blank passwords when it uses HTTP header authentication. When you use a blank password to authenticate against SharePoint Server 2010 or against Windows Live SkyDrive, an incorrect password is set. Therefore, authentication fails.

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Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Webservices.dll6.1.7600.16509782,33623-Jan-201007:29x86
Webservices.dll6.1.7600.20625782,33623-Jan-201007:36x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Webservices.dll6.1.7600.165091,159,16823-Jan-201008:00x64
Webservices.dll6.1.7600.206251,159,16823-Jan-201008:11x64
Webservices.dll6.1.7600.16509782,33623-Jan-201007:29x86
Webservices.dll6.1.7600.20625782,33623-Jan-201007:36x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Webservices.dll6.1.7600.165092,343,93623-Jan-201006:53IA-64
Webservices.dll6.1.7600.206252,343,93623-Jan-201006:45IA-64
Webservices.dll6.1.7600.16509782,33623-Jan-201007:29x86
Webservices.dll6.1.7600.20625782,33623-Jan-201007:36x86

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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.

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More information

For more information about Windows Live SkyDrive, visit the following Microsoft Web site: For more information about Microsoft Windows HTTP services (WinHTTP), visit the following Microsoft Developer Network (MSDN) Web site: For more information about Windows Web Services, visit the following MSDN Web site: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684� Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File namePackage_1_for_kb979751_bf~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot applicable
File size1,775
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_1_for_kb979751~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot applicable
File size2,480
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_2_for_kb979751_bf~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot applicable
File size1,780
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_2_for_kb979751~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot applicable
File size2,485
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_for_kb979751_rtm_bf~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot applicable
File size1,912
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_for_kb979751_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot applicable
File size1,947
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameUpdate-bf.mum
File versionNot applicable
File size1,648
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,674
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameX86_06a04f932b4d5a443e164f9e777f3c88_31bf3856ad364e35_6.1.7600.20625_none_4cb41a3424755c61.manifest
File versionNot applicable
File size699
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameX86_7aab48c7960c43f1e59b0719fce1285d_31bf3856ad364e35_6.1.7600.16509_none_0d36a41628f99cbf.manifest
File versionNot applicable
File size699
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16509_none_0ead32b08fc15565.manifest
File versionNot applicable
File size2,724
Date (UTC)23-Jan-2010
Time (UTC)07:53
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20625_none_0f1d2e7ba8f2c7b5.manifest
File versionNot applicable
File size2,724
Date (UTC)23-Jan-2010
Time (UTC)08:00
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Addition
Collapse this tableExpand this table
File nameAmd64_06a04f932b4d5a443e164f9e777f3c88_31bf3856ad364e35_6.1.7600.20625_none_a8d2b5b7dcd2cd97.manifest
File versionNot applicable
File size701
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameAmd64_6ce1b67a8d8d0b5e7d29153c9bd647b6_31bf3856ad364e35_6.1.7600.20625_none_e017d72d87aa4e47.manifest
File versionNot applicable
File size703
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameAmd64_7aab48c7960c43f1e59b0719fce1285d_31bf3856ad364e35_6.1.7600.16509_none_69553f99e1570df5.manifest
File versionNot applicable
File size701
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameAmd64_a1ba95d579238e84c48900cafe0888ec_31bf3856ad364e35_6.1.7600.16509_none_1bd8fe6823d9499b.manifest
File versionNot applicable
File size703
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameAmd64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16509_none_6acbce34481ec69b.manifest
File versionNot applicable
File size2,728
Date (UTC)23-Jan-2010
Time (UTC)08:48
PlatformNot applicable
File nameAmd64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20625_none_6b3bc9ff615038eb.manifest
File versionNot applicable
File size2,728
Date (UTC)23-Jan-2010
Time (UTC)08:40
PlatformNot applicable
File namePackage_1_for_kb979751_bf~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size1,785
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_1_for_kb979751~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size2,494
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_2_for_kb979751_bf~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size2,202
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_2_for_kb979751~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size4,079
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_3_for_kb979751_bf~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size2,008
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_3_for_kb979751~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size3,883
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_for_kb979751_rtm_bf~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size2,820
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_for_kb979751_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot applicable
File size2,881
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameUpdate-bf.mum
File versionNot applicable
File size2,290
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,329
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16509_none_0ead32b08fc15565.manifest
File versionNot applicable
File size2,724
Date (UTC)23-Jan-2010
Time (UTC)07:53
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20625_none_0f1d2e7ba8f2c7b5.manifest
File versionNot applicable
File size2,724
Date (UTC)23-Jan-2010
Time (UTC)08:00
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_06a04f932b4d5a443e164f9e777f3c88_31bf3856ad364e35_6.1.7600.20625_none_4cb5be2a2473655d.manifest
File versionNot applicable
File size700
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameIa64_2d85e217e7f330245854763c16fb1d11_31bf3856ad364e35_6.1.7600.20625_none_a81dd2caa815da15.manifest
File versionNot applicable
File size701
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameIa64_7aab48c7960c43f1e59b0719fce1285d_31bf3856ad364e35_6.1.7600.16509_none_0d38480c28f7a5bb.manifest
File versionNot applicable
File size700
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameIa64_e9589e472d2d08e99d0cc64ffc4cb59c_31bf3856ad364e35_6.1.7600.16509_none_f66c0d8688d089fa.manifest
File versionNot applicable
File size701
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameIa64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16509_none_0eaed6a68fbf5e61.manifest
File versionNot applicable
File size2,726
Date (UTC)23-Jan-2010
Time (UTC)08:42
PlatformNot applicable
File nameIa64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20625_none_0f1ed271a8f0d0b1.manifest
File versionNot applicable
File size2,726
Date (UTC)23-Jan-2010
Time (UTC)08:32
PlatformNot applicable
File namePackage_1_for_kb979751_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot applicable
File size1,784
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_1_for_kb979751~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot applicable
File size3,650
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_2_for_kb979751_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot applicable
File size2,002
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_2_for_kb979751~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot applicable
File size3,873
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_for_kb979751_rtm_bf~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot applicable
File size1,923
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File namePackage_for_kb979751_rtm~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot applicable
File size1,958
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameUpdate-bf.mum
File versionNot applicable
File size1,658
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,684
Date (UTC)23-Jan-2010
Time (UTC)10:41
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16509_none_0ead32b08fc15565.manifest
File versionNot applicable
File size2,724
Date (UTC)23-Jan-2010
Time (UTC)07:53
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20625_none_0f1d2e7ba8f2c7b5.manifest
File versionNot applicable
File size2,724
Date (UTC)23-Jan-2010
Time (UTC)08:00
PlatformNot applicable

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Keywords: kbexpertiseadvanced, kbqfe, kbhotfixserver, kbfix, kbsurveynew, kbautohotfix, KB979751

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Article Info
Article ID : 979751
Revision : 2
Created on : 4/1/2010
Published on : 4/1/2010
Exists online : False
Views : 185