A program that requires you to use a smart card stops responding in a remote desktop connection in Windows Server 2008, in Windows Vista, in Windows 7 or in Windows Server 2008 R2

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Article ID: 2521923 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You make a remote desktop connection to a computer that is running one of the following operating systems:
    • Windows Vista
    • Windows Server 2008
    • Windows 7
    • Windows Server 2008 R2
  • You run a program that requires you to use a smart card in the remote desktop connection.
  • The program exits without calling the smart card exit routines.

    Note The SCardEndTransaction function is called in the smart card exit routines.
  • You run a program that requires you to use the smart card.
In this scenario, all programs that require you to use the smart card do not successfully connect to the smart card and stop responding.

CAUSE

The issue occurs because the smart card service cannot end all transaction for redirected smart card readers in a process when the process exits without calling the smart card exit routines.

If a thread calls the SCardBeginTransaction function and then exits without calling the SCardEndTransaction function for any reason, such as incorrect design, a mutex object is not released. If another thread then calls the SCardConnect function to establish a connection to the same smart card, the second thread hangs because the mutex object was not released.

RESOLUTION

To resolve the issue, install the following hotfix on the affected computers that are running Windows Server 2008, Windows Vista, Windows 7 or Windows Server 2008 R2.
After you install the hotfix, the smart card service ends all transactions for redirected smart card readers in a process if the process exits without calling the SCardEndTransaction function.

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 website:
http://support.microsoft.com/contactus/?ws=support
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

To apply this hotfix, you must be running one of the following operating systems:
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008 SP2
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849 How to obtain the latest service pack for Windows Server 2008
For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

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 Vista and Windows Server 2008 file information notes
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • 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 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are very important for 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 Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Winscard.dll6.0.6002.22616115,71218-Mar-201116:00x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Winscard.dll6.0.6002.22616191,48818-Mar-201116:17x64
Winscard.dll6.0.6002.22616115,71218-Mar-201116:00x86
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Winscard.dll6.0.6002.22616337,92018-Mar-201116:33IA-64
Winscard.dll6.0.6002.22616115,71218-Mar-201116:00x86
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 files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.1.760 0 . 20xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1 . 21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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 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.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Winscard.dll6.1.7600.21010134,65616-Jul-201104:28x86
Winscard.dll6.1.7601.21772135,16816-Jul-201104:58x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Winscard.dll6.1.7600.21010218,11216-Jul-201105:25x64
Winscard.dll6.1.7601.21772218,11216-Jul-201105:32x64
Winscard.dll6.1.7600.21010134,65616-Jul-201104:28x86
Winscard.dll6.1.7601.21772135,16816-Jul-201104:58x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Winscard.dll6.1.7600.21010391,16816-Jul-201104:06IA-64
Winscard.dll6.1.7601.21772391,16816-Jul-201104:18IA-64
Winscard.dll6.1.7600.21010134,65616-Jul-201104:28x86
Winscard.dll6.1.7601.21772135,16816-Jul-201104:58x86

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about the SCardBeginTransaction function, visit the following Microsoft Development Network (MSDN) website:
General information about the SCardBeginTransaction Function
For more information about the SCardEndTransaction function, visit the following MSDN website:
General information about the SCardEndTransaction function
For more information about the SCardConnect function, visit the following MSDN website:
General information about the SCardConnect function
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2427997 A process that connects to a smart card hangs when a program that requires you to use the smart card crashes in Windows Vista, in Windows Server 2008, in Windows 7 or in Windows Server 2008 R2
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 Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size3,078
Date (UTC)18-Mar-2011
Time (UTC)18:32
PlatformNot applicable
File nameX86_702f4ff4b81f4d51ed435632fe23f6f9_31bf3856ad364e35_6.0.6002.22616_none_389c8b9b0d5521a5.manifest
File versionNot applicable
File size712
Date (UTC)18-Mar-2011
Time (UTC)18:32
PlatformNot applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.0.6002.22616_none_1b4fc9f68fdfcaa0.manifest
File versionNot applicable
File size6,113
Date (UTC)18-Mar-2011
Time (UTC)16:19
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_33af87621c732fbd3d2f0c5636c1ee49_31bf3856ad364e35_6.0.6002.22616_none_9698bf96eee7992b.manifest
File versionNot applicable
File size1,072
Date (UTC)18-Mar-2011
Time (UTC)18:32
PlatformNot applicable
File nameAmd64_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.0.6002.22616_none_776e657a483d3bd6.manifest
File versionNot applicable
File size6,135
Date (UTC)18-Mar-2011
Time (UTC)16:34
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size3,102
Date (UTC)18-Mar-2011
Time (UTC)18:32
PlatformNot applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.0.6002.22616_none_1b4fc9f68fdfcaa0.manifest
File versionNot applicable
File size6,113
Date (UTC)18-Mar-2011
Time (UTC)16:19
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_bfa4013635b29c788689e3e2269722fc_31bf3856ad364e35_6.0.6002.22616_none_6d71744eb01ebf55.manifest
File versionNot applicable
File size1,070
Date (UTC)18-Mar-2011
Time (UTC)18:32
PlatformNot applicable
File nameIa64_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.0.6002.22616_none_1b516dec8fddd39c.manifest
File versionNot applicable
File size6,124
Date (UTC)18-Mar-2011
Time (UTC)16:44
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,255
Date (UTC)18-Mar-2011
Time (UTC)18:32
PlatformNot applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.0.6002.22616_none_1b4fc9f68fdfcaa0.manifest
File versionNot applicable
File size6,113
Date (UTC)18-Mar-2011
Time (UTC)16:19
PlatformNot applicable

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 nameUpdate.mum
File versionNot Applicable
File size2,773
Date (UTC)16-Jul-2011
Time (UTC)08:33
PlatformNot Applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7600.21010_none_198afcd3f3d65075.manifest
File versionNot Applicable
File size2,933
Date (UTC)16-Jul-2011
Time (UTC)04:59
PlatformNot Applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7601.21772_none_1b32a2c3f12b6373.manifest
File versionNot Applicable
File size2,933
Date (UTC)16-Jul-2011
Time (UTC)05:26
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7600.21010_none_75a99857ac33c1ab.manifest
File versionNot Applicable
File size2,937
Date (UTC)16-Jul-2011
Time (UTC)05:56
PlatformNot Applicable
File nameAmd64_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7601.21772_none_77513e47a988d4a9.manifest
File versionNot Applicable
File size2,937
Date (UTC)16-Jul-2011
Time (UTC)06:17
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size4,059
Date (UTC)16-Jul-2011
Time (UTC)08:33
PlatformNot Applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7600.21010_none_198afcd3f3d65075.manifest
File versionNot Applicable
File size2,933
Date (UTC)16-Jul-2011
Time (UTC)04:59
PlatformNot Applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7601.21772_none_1b32a2c3f12b6373.manifest
File versionNot Applicable
File size2,933
Date (UTC)16-Jul-2011
Time (UTC)05:26
PlatformNot Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7600.21010_none_198ca0c9f3d45971.manifest
File versionNot Applicable
File size2,935
Date (UTC)16-Jul-2011
Time (UTC)05:46
PlatformNot Applicable
File nameIa64_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7601.21772_none_1b3446b9f1296c6f.manifest
File versionNot Applicable
File size2,935
Date (UTC)16-Jul-2011
Time (UTC)06:13
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size2,169
Date (UTC)16-Jul-2011
Time (UTC)08:33
PlatformNot Applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7600.21010_none_198afcd3f3d65075.manifest
File versionNot Applicable
File size2,933
Date (UTC)16-Jul-2011
Time (UTC)04:59
PlatformNot Applicable
File nameX86_microsoft-windows-s..cardsubsystemclient_31bf3856ad364e35_6.1.7601.21772_none_1b32a2c3f12b6373.manifest
File versionNot Applicable
File size2,933
Date (UTC)16-Jul-2011
Time (UTC)05:26
PlatformNot Applicable

Properties

Article ID: 2521923 - Last Review: August 10, 2011 - Revision: 3.0
APPLIES TO
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbexpertiseadvanced kbsurveynew KB2521923

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