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FIX: The strupr function may not convert strings to uppercase in Visual Studio .NET 2003

This article has been archived. It is offered "as is" and will no longer be updated.
In Microsoft Visual Studio .NET 2003, the strupr function may not convert strings to uppercase. You experience this problem when the following conditions are true:
  • You run an application on a computer that is running Microsoft Windows 98 or Microsoft Windows Millennium Edition.
  • On the computer, you set the locale to the code page that is obtained from the operating system. This code page is called the OEM code page (OCP).
  • On the computer, you set the code page to _MP_CP_OEM.
You typically experience this problem when you compile an application by using the C Runtime Library that is included with Visual Studio .NET 2003.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it 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 .NET 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product 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 Visual Studio .NET 2003 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.

Hotfix 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 tool in Control Panel.
   Date         Time   Version      Size     File name   ------------------------------------------------------   10-Dec-2004  09:33  7.10.4344.0  499,712  msvcp71.dll      10-Dec-2004  08:59  7.10.4344.0  765,952  msvcp71d.dll     10-Dec-2004  08:30  7.10.6026.4  348,160  msvcr71.dll      10-Dec-2004  08:59  7.10.4344.0  544,768  msvcr71d.dll  
To work around this problem, use the CharUpper Windows API function in the application.
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

Article ID: 890940 - Last Review: 01/17/2015 09:35:16 - Revision: 1.5

Microsoft Visual Studio .NET 2003 Professional Edition, Microsoft Visual Studio .NET 2003 Academic Edition, Microsoft Visual Studio .NET 2003 Enterprise Architect, Microsoft Visual Studio .NET 2003 Enterprise Developer, Microsoft Windows Millennium Edition, Microsoft Windows 98 Second Edition

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