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FIX: Redirected audio randomly fails over a high latency network for a remote desktop connection to a computer that is running Windows Server 2008


View products that this article applies to.

Symptoms

Consider the following scenario:
  • You enable Remote Desktop, or you install the Terminal Services role on a computer that is running Windows Server 2008.
  • You enable audio redirection on the computer.
  • You make a remote desktop connection to the computer from a remote client by using a high latency network such as a wide-area network (WAN).

In this scenario, the audio redirection feature randomly stops working in the remote desktop connection. If you try to play an audio file in Windows Media Player when this problem occurs, you receive the following error message:
Windows Media Player encountered a problem while playing the file.

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Cause

This problem occurs because of a problem in the Remote Desktop Protocol (RDP) audio endpoint module (Rdpendp.dll).

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Resolution

To resolve this problem, apply this hotfix on the affected Windows Server 2008-based computer.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that 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: 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 have Windows Server 2008 Service Pack 2 (SP2) installed.

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

Registry information

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

Restart information

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

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English (United States) 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.

    VersionProductSR_LevelService branch
    6.0.600 0. 20xxxWindows VistaRTMLDR
    6.0.600 1 . 22xxxWindows Vista and Windows Server 2008SP1LDR
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • Service Pack 1 is integrated into the release version of Windows Server 2008. Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files have a 6.0.0000.xxxxx version number.
  • 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" section. MUM files 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 Server 2008
File nameFile versionFile sizeDateTimePlatform
Rdpendp.dll6.0.6001.2283290,62411-Jan-201116:41x86
Rdpendp.mofNot Applicable1,12204-Mar-201005:49Not Applicable
Rdpendp.dll6.0.6002.2256890,62411-Jan-201115:58x86
Rdpendp.mofNot Applicable1,12203-Apr-200920:49Not Applicable

For all supported x64-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Rdpendp.dll6.0.6001.2283288,57611-Jan-201115:04x64
Rdpendp.mofNot Applicable1,12226-Feb-201004:07Not Applicable
Rdpendp.dll6.0.6002.2256888,57611-Jan-201116:22x64
Rdpendp.mofNot Applicable1,12203-Apr-200920:43Not Applicable

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Workaround

To work around this problem, disconnect the remote desktop connection, and then reconnect it.

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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 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

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Additional file information


Additional file information for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008
File namePackage_1_for_kb2494136~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,971
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_2_for_kb2494136~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,792
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_3_for_kb2494136~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size2,296
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_4_for_kb2494136~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size2,117
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,373
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_client_2~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,536
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,720
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,414
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_server_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,536
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,721
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File nameX86_30efdbb6052abc552dc0646e4a0da0b0_31bf3856ad364e35_6.0.6001.22832_none_2d0887547466c5aa.manifest
File versionNot Applicable
File size719
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File nameX86_d46a7d1a32eae9f4bfeaf7e794340061_31bf3856ad364e35_6.0.6002.22568_none_ff8f37b2fada706b.manifest
File versionNot Applicable
File size719
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File nameX86_microsoft-windows-t..ices-rdpsounddriver_31bf3856ad364e35_6.0.6001.22832_none_3b34882413391c58.manifest
File versionNot Applicable
File size15,521
Date (UTC)11-Jan-2011
Time (UTC)16:55
PlatformNot Applicable
File nameX86_microsoft-windows-t..ices-rdpsounddriver_31bf3856ad364e35_6.0.6002.22568_none_3d008c0410725d59.manifest
File versionNot Applicable
File size15,521
Date (UTC)11-Jan-2011
Time (UTC)16:12
PlatformNot Applicable

Additional files for all supported x64-based versions of Windows Server 2008
File nameAmd64_0a8635f0c1e68d60510be83c10aa3604_31bf3856ad364e35_6.0.6002.22568_none_719a0532fe250477.manifest
File versionNot Applicable
File size723
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File nameAmd64_2d00d9006c9528d63799024297838079_31bf3856ad364e35_6.0.6001.22832_none_32842083b0a467c4.manifest
File versionNot Applicable
File size723
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File nameAmd64_microsoft-windows-t..ices-rdpsounddriver_31bf3856ad364e35_6.0.6001.22832_none_975323a7cb968d8e.manifest
File versionNot Applicable
File size15,558
Date (UTC)11-Jan-2011
Time (UTC)15:18
PlatformNot Applicable
File nameAmd64_microsoft-windows-t..ices-rdpsounddriver_31bf3856ad364e35_6.0.6002.22568_none_991f2787c8cfce8f.manifest
File versionNot Applicable
File size15,558
Date (UTC)11-Jan-2011
Time (UTC)16:34
PlatformNot Applicable
File namePackage_1_for_kb2494136~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,983
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_2_for_kb2494136~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,802
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_3_for_kb2494136~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,312
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_4_for_kb2494136~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,131
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,381
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_client_2~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,546
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,730
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,422
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_server_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,546
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable
File namePackage_for_kb2494136_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,731
Date (UTC)12-Jan-2011
Time (UTC)07:42
PlatformNot Applicable

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Keywords: kb, kbautohotfix, kbqfe, kbhotfixserver, kbfix, kbexpertiseinter, kbprb, kbsurveynew, kbbug

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Article Info
Article ID : 2494136
Revision : 1
Created on : 1/7/2017
Published on : 2/9/2011
Exists online : False
Views : 182