Error message when you shadow a remote desktop service session in Windows Server 2008 R2 or in Windows 7: "Because of a protocol error, this session will be disconnected. Please try connecting to the remote computer again."

Applies To
Windows Server 2008 R2 Service Pack 1

Symptoms

Consider the following scenario:

  1. You start a Remote Desktop session to a Remote Desktop server from a computer that is running Windows Server 2008 R2 or Windows 7.
  2. You remotely control another Remote Desktop session. This is known as "shadowing."
  3. You run an application that displays bitmaps in the remotely controlled Remote Desktop session. For example, you open a Control Panel item.

In this scenario, the remote control session fails, and you receive the following error message:

Note

"Because of a protocol error, this session will be disconnected. Please try connecting to the remote computer again."

Cause

The issue occurs because Remote Desktop Connection (RDC) 7.0 does not handle the monochrome bitmap pattern brush correctly.

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 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 Windows Server 2008 R2 or Windows 7.

Registry information

To use the hotfix in this package, you do not 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 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 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

File name File version File size Date Time Platform
Mstsc.exe 6.1.7600.20770 1,034,240 03-Aug-2010 04:32 x86
Mstsc.mof Not applicable 1,199 22-Jul-2009 23:03 Not applicable
Aaclient.dll 6.1.7600.20770 131,584 03-Aug-2010 04:32 x86
Aaclient.mof Not applicable 1,261 22-Jul-2009 22:58 Not applicable
Mstscax.dll 6.1.7600.20770 2,703,360 03-Aug-2010 04:35 x86
Mstscax.mof Not applicable 2,054 22-Jul-2009 23:02 Not applicable
Tsgqec.dll 6.1.7600.20770 36,864 03-Aug-2010 04:38 x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name File version File size Date Time Platform
Mstsc.exe 6.1.7600.20770 1,098,240 03-Aug-2010 04:57 x64
Mstsc.mof Not applicable 1,199 22-Jul-2009 23:22 Not applicable
Aaclient.dll 6.1.7600.20770 158,720 03-Aug-2010 04:57 x64
Aaclient.mof Not applicable 1,261 22-Jul-2009 23:18 Not applicable
Mstscax.dll 6.1.7600.20770 3,152,896 03-Aug-2010 05:00 x64
Mstscax.mof Not applicable 2,054 22-Jul-2009 23:20 Not applicable
Tsgqec.dll 6.1.7600.20770 44,032 03-Aug-2010 05:00 x64
Mstsc.exe 6.1.7600.20770 1,034,240 03-Aug-2010 04:32 x86
Mstsc.mof Not applicable 1,199 22-Jul-2009 23:03 Not applicable
Aaclient.dll 6.1.7600.20770 131,584 03-Aug-2010 04:32 x86
Aaclient.mof Not applicable 1,261 22-Jul-2009 22:58 Not applicable
Mstscax.dll 6.1.7600.20770 2,703,360 03-Aug-2010 04:35 x86
Mstscax.mof Not applicable 2,054 22-Jul-2009 23:02 Not applicable
Tsgqec.dll 6.1.7600.20770 36,864 03-Aug-2010 04:38 x86

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

File name File version File size Date Time Platform
Mstsc.exe 6.1.7600.20770 1,660,416 03-Aug-2010 04:16 IA-64
Mstsc.mof Not applicable 1,199 22-Jul-2009 23:47 Not applicable
Aaclient.dll 6.1.7600.20770 339,968 03-Aug-2010 04:17 IA-64
Aaclient.mof Not applicable 1,261 22-Jul-2009 23:44 Not applicable
Mstscax.dll 6.1.7600.20770 6,087,168 03-Aug-2010 04:20 IA-64
Mstscax.mof Not applicable 2,054 22-Jul-2009 23:46 Not applicable
Tsgqec.dll 6.1.7600.20770 97,792 03-Aug-2010 04:21 IA-64
Mstsc.exe 6.1.7600.20770 1,034,240 03-Aug-2010 04:32 x86
Mstsc.mof Not applicable 1,199 22-Jul-2009 23:03 Not applicable
Aaclient.dll 6.1.7600.20770 131,584 03-Aug-2010 04:32 x86
Aaclient.mof Not applicable 1,261 22-Jul-2009 22:58 Not applicable
Mstscax.dll 6.1.7600.20770 2,703,360 03-Aug-2010 04:35 x86
Mstscax.mof Not applicable 2,054 22-Jul-2009 23:02 Not applicable
Tsgqec.dll 6.1.7600.20770 36,864 03-Aug-2010 04:38 x86

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 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

For more information about Pattern Brush, visit the following Microsoft webpage.

Introduction to Pattern Brush For more information, click the following article number to view the article in the Microsoft Knowledge Base:

969084 Description of the Remote Desktop Connection 7.0 client update for Remote Desktop Services (RDS) for Windows XP SP3, Windows Vista SP1, and Windows Vista SP2

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

File name Update.mum
File version Not applicable
File size 1,656
Date (UTC) 04-Aug-2010
Time (UTC) 05:18
Platform Not applicable
File name X86_7784dc8c01f7835c35e0832e792c99ce_31bf3856ad364e35_6.1.7600.20770_none_2b5c9d99c64f35d4.manifest
File version Not applicable
File size 1,093
Date (UTC) 04-Aug-2010
Time (UTC) 05:18
Platform Not applicable
File name X86_microsoft-windows-t..minalservicesclient_31bf3856ad364e35_6.1.7600.20770_none_4e4214af9b85220a.manifest
File version Not applicable
File size 20,880
Date (UTC) 03-Aug-2010
Time (UTC) 05:23
Platform Not applicable
File name X86_microsoft-windows-t..s-clientactivexcore_31bf3856ad364e35_6.1.7600.20770_none_3053ced74015c889.manifest
File version Not applicable
File size 131,498
Date (UTC) 03-Aug-2010
Time (UTC) 05:25
Platform Not applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name Amd64_4ed7761a59607fc228d6f9ce6504bcc2_31bf3856ad364e35_6.1.7600.20770_none_f94f7123813ada4a.manifest
File version Not applicable
File size 1,838
Date (UTC) 04-Aug-2010
Time (UTC) 05:18
Platform Not applicable
File name Amd64_microsoft-windows-t..minalservicesclient_31bf3856ad364e35_6.1.7600.20770_none_aa60b03353e29340.manifest
File version Not applicable
File size 20,886
Date (UTC) 03-Aug-2010
Time (UTC) 06:02
Platform Not applicable
File name Amd64_microsoft-windows-t..s-clientactivexcore_31bf3856ad364e35_6.1.7600.20770_none_8c726a5af87339bf.manifest
File version Not applicable
File size 131,504
Date (UTC) 03-Aug-2010
Time (UTC) 06:04
Platform Not applicable
File name Update.mum
File version Not applicable
File size 1,666
Date (UTC) 04-Aug-2010
Time (UTC) 05:18
Platform Not applicable
File name Wow64_microsoft-windows-t..minalservicesclient_31bf3856ad364e35_6.1.7600.20770_none_b4b55a858843553b.manifest
File version Not applicable
File size 13,023
Date (UTC) 03-Aug-2010
Time (UTC) 05:04
Platform Not applicable
File name X86_microsoft-windows-t..s-clientactivexcore_31bf3856ad364e35_6.1.7600.20770_none_3053ced74015c889.manifest
File version Not applicable
File size 131,498
Date (UTC) 03-Aug-2010
Time (UTC) 05:25
Platform Not applicable

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

File name Ia64_0d2a2c311dbf30562129937a6972dc8b_31bf3856ad364e35_6.1.7600.20770_none_eea20a7d1b508f67.manifest
File version Not applicable
File size 1,835
Date (UTC) 04-Aug-2010
Time (UTC) 05:18
Platform Not applicable
File name Ia64_microsoft-windows-t..minalservicesclient_31bf3856ad364e35_6.1.7600.20770_none_4e43b8a59b832b06.manifest
File version Not applicable
File size 20,883
Date (UTC) 03-Aug-2010
Time (UTC) 05:53
Platform Not applicable
File name Ia64_microsoft-windows-t..s-clientactivexcore_31bf3856ad364e35_6.1.7600.20770_none_305572cd4013d185.manifest
File version Not applicable
File size 131,501
Date (UTC) 03-Aug-2010
Time (UTC) 05:53
Platform Not applicable
File name Update.mum
File version Not applicable
File size 1,469
Date (UTC) 04-Aug-2010
Time (UTC) 05:18
Platform Not applicable
File name Wow64_microsoft-windows-t..minalservicesclient_31bf3856ad364e35_6.1.7600.20770_none_b4b55a858843553b.manifest
File version Not applicable
File size 13,023
Date (UTC) 03-Aug-2010
Time (UTC) 05:04
Platform Not applicable
File name X86_microsoft-windows-t..s-clientactivexcore_31bf3856ad364e35_6.1.7600.20770_none_3053ced74015c889.manifest
File version Not applicable
File size 131,498
Date (UTC) 03-Aug-2010
Time (UTC) 05:25
Platform Not applicable