Article ID: 838752 - View products that this article applies to.
When a program uses the _read function to access files that are larger than 4 gigabytes (GB), the program may not receive the correct data. The _read function is part of the Microsoft Visual C++ run-time library (Msvcrt.dll).
Hotfix informationA 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 this specific problem. 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 Web site:
PrerequisitesNo prerequisites are required.
Restart requirementYou must restart your computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe English version of this hotfix has the file attributes (or later) 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 tool in Control Panel.
Date Time Version Size File name Platform ---------------------------------------------------------------- 23-Mar-2004 18:36 7.0.3790.143 327,680 Msvcrt.dll x86 23-Mar-2004 10:31 7.0.3790.143 894,976 Msvcrt.dll IA-64 23-Mar-2004 09:36 7.0.3790.143 327,680 Wmsvcrt.dll IA-64
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.
For additional information about the new file naming schema for Microsoft Windows software update packages, click the following article number to view the article in the Microsoft Knowledge Base:
816915For additional information about the terminology that is used in this article, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/816915/ )New file naming schema for Microsoft Windows software update packages
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
For a Windows 2000 version of this article, click the following article number to view the article in the Microsoft Knowledge Base:
838751For more information about the _read function, visit the following Microsoft Web site:
(http://support.microsoft.com/kb/838751/ )Programs that use the _read function to access very large files do not receive the correct data in Windows 2000
Article ID: 838752 - Last Review: July 24, 2007 - Revision: 5.12