This article describes an issue that occurs when you use Microsoft ODBC or OLE DB Driver for Oracle or Microsoft Distributed Transaction Coordinator (DTC) to connect to Oracle database in Windows 8.1, Windows Server 2012 R2, Windows Server 2012, Windows 7 Service Pack 1 (SP1), Windows Server 2008 R2 SP1, Windows Vista Service Pack 2 (SP2), or Windows Server 2008 SP2. Before you install this update, see the Prerequisites section.
Note This issue may occur after you install security update 3126587.
How to get this update
Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
Method 1: Windows Update
This update is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.
Method 2: Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
All supported x86-based versions of Windows 8.1
All supported x64-based versions of Windows 8.1
All supported x64-based versions of Windows Server 2012 R2
All supported x64-based versions of Windows Server 2012
All supported x86-based versions of Windows 7
All supported x64-based versions of Windows 7
All supported x64-based versions of Windows Server 2008 R2
All supported IA-based versions of Windows Server 2008 R2
All supported x86-based versions of Windows Vista
All supported x64-based versions of Windows Vista
All supported x86-based versions of Windows Server 2008
All supported x64-based versions of Windows Server 2008
All supported IA-based versions of Windows Server 2008
For more information about how to download Microsoft support files, select the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Update detail information
To install this update, you should first install April 2014, update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) in Windows 8.1 or Windows Server 2012 R2. Or, install Service Pack 1 for Windows 7 or Windows Server 2008 R2. Or, install Service Pack 2 for Windows Vista and for Windows Server 2008.
Additionally, you have to install security update 3126587 before you install the update that is described in this article.
To apply this update, you don't have to make any changes to the registry.
You may have to restart the computer after you apply this update.
Update replacement information
This update doesn't replace a previously released update.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology that Microsoft uses to describe software updates.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
For a list of the files that are provided in this update, download the file information for update 3147071.