Applications may freeze when ADSI APIs waits infinitely for server to respond in Windows Server 2012 R2

This article describes an issue that occurs when applications use Active Directory Service Interfaces (ADSI) APIs in Windows Server 2012 R2. A hotfix is available to fix this issue. The hotfix has a prerequisite.
Resolution
To fix this issue, we have released a hotfix. Even though this issue is observed in Windows Server 2012 R2 only, this hotfix also applies to Windows 8.1 and Windows RT 8.1.

Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get 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 don't 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 website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.

Prerequisites

To apply this hotfix, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this hotfix, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix doesn't replace a previously released hotfix.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
This issue occurs because ADSI doesn't support time-outs when LDAP calls are made to domain controllers. Instead, a NULL value is passed in most of the API calls. This causes Wldap32.dll to wait until a response is received from the server.

Affected applications

The following applications are reported to have encountered this issue:
References
Learn about the terminology that Microsoft uses to describe software updates.
File Information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.

Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2

Important Windows 8.1 hotfixes and Windows Server 2012 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 8.1/Windows Server 2012 R2" on the page. Always refer to the "Applies to" section in articles to determine the actual operating system that each hotfix applies to.

Notes
  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    VersionProductMilestoneService branch
    6.3.960 0.18 xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
x64 Windows 8.1 and Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Adsldpc.dll6.3.9600.18116251,90403-Nov-201504:35x64
Adsldpc.dll6.3.9600.18116219,13603-Nov-201503:53x86
x86 Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Adsldpc.dll6.3.9600.18116219,13603-Nov-201503:53x86
Windows RT 8.1
File nameFile versionFile sizeDateTimePlatform
Adsldpc.dll6.3.9600.18116189,44003-Nov-201503:23Not applicable

Additional file information

x64 Windows 8.1 and Windows Server 2012 R2
File propertyValue
File nameAmd64_05a8e11336527be72f6ba5c0f9adf24c_31bf3856ad364e35_6.3.9600.18116_none_107148bcea48b16f.manifest
File versionNot applicable
File size737
Date (UTC)04-Nov-2015
Time (UTC)05:59
PlatformNot applicable
File nameAmd64_866624e0220638f6a740317c376d4cf9_31bf3856ad364e35_6.3.9600.18116_none_305da8f3b799f750.manifest
File versionNot applicable
File size739
Date (UTC)04-Nov-2015
Time (UTC)05:59
PlatformNot applicable
File nameAmd64_microsoft-windows-a..terface-ldapc-layer_31bf3856ad364e35_6.3.9600.18116_none_503e52f03a3a07fb.manifest
File versionNot applicable
File size6,207
Date (UTC)03-Nov-2015
Time (UTC)06:04
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,908
Date (UTC)04-Nov-2015
Time (UTC)05:59
PlatformNot applicable
File nameX86_microsoft-windows-a..terface-ldapc-layer_31bf3856ad364e35_6.3.9600.18116_none_f41fb76c81dc96c5.manifest
File versionNot applicable
File size6,203
Date (UTC)03-Nov-2015
Time (UTC)05:10
PlatformNot applicable
x86 Windows 8.1
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,802
Date (UTC)04-Nov-2015
Time (UTC)05:58
PlatformNot applicable
File nameX86_05a8e11336527be72f6ba5c0f9adf24c_31bf3856ad364e35_6.3.9600.18116_none_b452ad3931eb4039.manifest
File versionNot applicable
File size735
Date (UTC)04-Nov-2015
Time (UTC)05:58
PlatformNot applicable
File nameX86_microsoft-windows-a..terface-ldapc-layer_31bf3856ad364e35_6.3.9600.18116_none_f41fb76c81dc96c5.manifest
File versionNot applicable
File size6,203
Date (UTC)03-Nov-2015
Time (UTC)05:10
PlatformNot applicable
Windows RT 8.1
File propertyValue
File nameArm_71fcb50a6843237d7c6f77b388bc8c85_31bf3856ad364e35_6.3.9600.18116_none_f307e545e430d620.manifest
File versionNot applicable
File size735
Date (UTC)04-Nov-2015
Time (UTC)05:58
PlatformNot applicable
File nameArm_microsoft-windows-a..terface-ldapc-layer_31bf3856ad364e35_6.3.9600.18116_none_f42229c481d9b58b.manifest
File versionNot applicable
File size6,203
Date (UTC)03-Nov-2015
Time (UTC)04:06
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,802
Date (UTC)04-Nov-2015
Time (UTC)05:58
PlatformNot applicable
Properties

Article ID: 3109156 - Last Review: 12/09/2015 00:05:00 - Revision: 1.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1

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