Applies ToWindows Server 2008 R2 Standard Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter

Symptoms

Consider the following scenario:

  • You have a Windows Server 2008 R2-based computer that has the Remote Desktop Service role installed.

  • Many users try to log on to or log off from the Remote Desktop server at the same time.Note this issue may occur when seven to ten users try to log on or log off at the same time.

In this scenario, the Remote Desktop server denies some connection requests. Additionally, you receive the following error message:

The remote procedure call failed and did not execute.

Note If a user tries to connect again, the user may be succeed at the second try.

Cause

This issue is caused by a race condition in the remote procedure call (RPC) module.

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:

http://support.microsoft.com/contactus/?ws=supportNote 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, your computer must be running Windows Server 2008 R2 with the Remote Desktop Service role installed.

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 install 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 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 very 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 x64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Regapi.dll

6.1.7600.20621

95,232

19-Jan-2010

10:30

x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Regapi.dll

6.1.7600.20621

183,296

19-Jan-2010

09:01

IA-64

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, click the following article number to view the article in the Microsoft Knowledge Base:

970689 A Windows Server 2008-based terminal server denies connection requests with the error message "The remote procedure call failed and did not execute" randomly under a heavy logon/logoff conditionFor 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 Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2

File name

Amd64_461dd0607814fc992a4dbb8700d4d4f6_31bf3856ad364e35_6.1.7600.20621_none_291109329cf552b2.manifest

File version

Not Applicable

File size

721

Date (UTC)

20-Jan-2010

Time (UTC)

00:43

Platform

Not Applicable

File name

Amd64_f02270b20fa9c8441f320f77f97e60b6_31bf3856ad364e35_6.1.7600.20621_none_a3ebe8236e0f58a5.manifest

File version

Not Applicable

File size

719

Date (UTC)

20-Jan-2010

Time (UTC)

00:43

Platform

Not Applicable

File name

Amd64_microsoft-windows-t..rvices-registryapis_31bf3856ad364e35_6.1.7600.20621_none_010d9870549d4110.manifest

File version

Not Applicable

File size

2,431

Date (UTC)

19-Jan-2010

Time (UTC)

13:39

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

2,328

Date (UTC)

20-Jan-2010

Time (UTC)

00:43

Platform

Not Applicable

File name

X86_microsoft-windows-t..rvices-registryapis_31bf3856ad364e35_6.1.7600.20621_none_a4eefcec9c3fcfda.manifest

File version

Not Applicable

File size

2,429

Date (UTC)

19-Jan-2010

Time (UTC)

13:40

Platform

Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_efeabf0bb7474f83f63a296d8165af2b_31bf3856ad364e35_6.1.7600.20621_none_c53ae327dc6b6120.manifest

File version

Not Applicable

File size

719

Date (UTC)

20-Jan-2010

Time (UTC)

00:43

Platform

Not Applicable

File name

Ia64_f02270b20fa9c8441f320f77f97e60b6_31bf3856ad364e35_6.1.7600.20621_none_47cef095b5aff06b.manifest

File version

Not Applicable

File size

718

Date (UTC)

20-Jan-2010

Time (UTC)

00:43

Platform

Not Applicable

File name

Ia64_microsoft-windows-t..rvices-registryapis_31bf3856ad364e35_6.1.7600.20621_none_a4f0a0e29c3dd8d6.manifest

File version

Not Applicable

File size

2,430

Date (UTC)

19-Jan-2010

Time (UTC)

13:40

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

1,684

Date (UTC)

20-Jan-2010

Time (UTC)

00:43

Platform

Not Applicable

File name

X86_microsoft-windows-t..rvices-registryapis_31bf3856ad364e35_6.1.7600.20621_none_a4eefcec9c3fcfda.manifest

File version

Not Applicable

File size

2,429

Date (UTC)

19-Jan-2010

Time (UTC)

13:40

Platform

Not Applicable

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