Microsoft KB Archive/927665

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Article ID: 927665

Article Last Modified on 5/9/2007


  • Microsoft Visual Studio 2005 Express Edition
  • Microsoft Visual Studio 2005 Professional Edition
  • Microsoft Visual Studio 2005 Standard Edition


You have a computer that is running a 64-bit operating system. You install the Microsoft Visual C++ 2005 Redistributable Package on this computer by using the Vcredist_x64.exe file or the Vcredist_ia64.exe file. When you do this, the Msdia80.dll file is installed in the root folder of the boot drive.

Note The correct path of the Msdia80.dll file is Drive:\Program Files\Common Files\Microsoft Shared\VC.


Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Visual Studio 2005 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.


You must have Microsoft Visual Studio 2005 installed to apply this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

File name File version File size Date Time Platform
Vcredi64.exe 2.0.50727.273 6,569,472 28-Mar-2007 14:16 x86
Vcredx64.exe 2.0.50727.273 3,156,480 28-Mar-2007 13:21 x86


To work around this problem, move the Msdia80.dll file to the Drive:\Program Files\Common Files\Microsoft Shared\VC folder. Then, type the following command at a command prompt to register the Msdia80.dll file:

regsvr32 driver:\Program Files\Common Files\Microsoft Shared\VC\msdia80.dll


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


For more information, 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

Keywords: kbfix kbhotfixserver kbqfe kbpubtypekc KB927665