Symptoms
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.
Resolution
Important This issue applies to a product that is no longer supported. To resolve this issue, install the Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package ATL Security Update on the computer that is experiencing this issue.For more information about the Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package ATL Security Update for your 64-bit operating system, visit the following Microsoft Download Center website:
Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package ATL Security Updatehttp://www.microsoft.com/download/details.aspx?displaylang=en&FamilyID=766a6af7-ec73-40ff-b072-9112bab119c2
Workaround
To temporarily work around this issue, 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
