Microsoft KB Archive/830460

= Access Violation Occurs When You Run a Multithreaded Program on a Heavily Loaded Computer =

Article ID: 830460

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
When you run a program in a multithreaded environment, you may experience both of the following symptoms:
 * The program intermittently stops responding (hangs).
 * The program intermittently crashes and generates an access violation error message.



CAUSE
This problem may occur if all the following conditions are true:
 * The computer running the program is under a heavy load.
 * The program creates and destroys ios-derived classes in multiple threads.
 * The program uses the old iostream library instead of the Standard C++ library that was introduced in Microsoft Visual C++ 5.0.



Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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:

http://support.microsoft.com/contactus/?ws=support

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.

Prerequisites
You must be running Microsoft Windows 2000 Service Pack 3 (SP3) or later to install this hotfix. For additional information about how to obtain the latest Windows 2000 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

Restart Requirement
You do not have to restart your 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) 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 15-Oct-2003 17:09  6.1.9845.0  77,878  Msvcirt.dll 22-Oct-2003 18:04  6.1.9845.0  94,285  Msvcirtd.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.



MORE INFORMATION
For additional information about this problem, click the following article number to view the article in the Microsoft Knowledge Base:

814308 FIX: Access Violation When You Use ios-Derived Type in Multithreaded Applications

For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New Naming Schema for Microsoft Windows Hotfix Packages

For additional 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

Additional query words: multi-threaded

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB830460

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