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The Terminal Services Active X control (mstscax.dll) does not match the version of the Client Shell. What is going on?
The Terminal Services Active X control (mstscax.dll) does not match the version of the Client Shell.
After you apply a Windows XP service pack, the remote desktop session fails
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Article ID : 928055
Last Review : February 8, 2007
Revision : 1.0
SYMPTOMS
After you use Remote Desktop Client Control (Mstscax.dll) to make a remote desktop connection from a Microsoft Windows XP-based computer, the remote desktop session fails. This problem occurs after you apply Windows XP Service Pack 1 (SP1) or Windows XP Service Pack 2 (SP2) on a client computer.
For example, when you try to connect to a Microsoft Windows Storage Server 2003 R2-based computer that has Remote Desktop for Administration installed, you receive the following error message:
Remote Admin Connection
Remote Admin Web Connection ActiveX Control could not be installed. A connection cannot be made without a working installed version of the control. Please contact the server administrator.
The remote desktop connection then fails.
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CAUSE
This problem occurs when the Mstscax.dll file is not reregistered when the Windows XP service pack is applied.
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RESOLUTION
To solve this problem, run the Regsvr32.exe program to reregister the Mstscax.dll file. To do this, click Start, click Run, type regsvr32 %systemroot%\system32\msts
Still getting the Error Message? The Terminal Services Active X control (mstscax.dll) does not match the version of the Client Shell.
After you apply a Windows XP service pack, the remote desktop session fails
View products that this article applies to.
Article ID : 928055
Last Review : February 8, 2007
Revision : 1.0
SYMPTOMS
After you use Remote Desktop Client Control (Mstscax.dll) to make a remote desktop connection from a Microsoft Windows XP-based computer, the remote desktop session fails. This problem occurs after you apply Windows XP Service Pack 1 (SP1) or Windows XP Service Pack 2 (SP2) on a client computer.
For example, when you try to connect to a Microsoft Windows Storage Server 2003 R2-based computer that has Remote Desktop for Administration installed, you receive the following error message:
Remote Admin Connection
Remote Admin Web Connection ActiveX Control could not be installed. A connection cannot be made without a working installed version of the control. Please contact the server administrator.
The remote desktop connection then fails.
Back to the top
CAUSE
This problem occurs when the Mstscax.dll file is not reregistered when the Windows XP service pack is applied.
Back to the top
RESOLUTION
To solve this problem, run the Regsvr32.exe program to reregister the Mstscax.dll file. To do this, click Start, click Run, type regsvr32 %systemroot%\system32\msts
Still getting the Error Message? The Terminal Services Active X control (mstscax.dll) does not match the version of the Client Shell.
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