Microsoft KB Archive/933096

= FIX: A PGO optimized Visual C++ application that was built by using Visual Studio 2005 may crash or may display unexpected runtime behavior =

Article ID: 933096

Article Last Modified on 4/11/2007

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APPLIES TO


 * Microsoft Visual Studio 2005 Professional Edition
 * Microsoft Visual Studio 2005 Standard Edition
 * Microsoft Visual Studio 2005 Express Edition
 * Microsoft Visual Studio 2005 Team Edition for Database Professionals
 * Microsoft Visual Studio 2005 Team Edition for Software Architects
 * Microsoft Visual Studio 2005 Team Edition for Software Developers
 * Microsoft Visual Studio 2005 Team Edition for Software Testers

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SYMPTOMS
Consider the following scenario. You have a Microsoft Visual C++ application. The Visual C++ application was built by using Microsoft Visual Studio 2005. The application was optimized by using profile-guided optimizations (PGO). In this scenario, the application may crash or may display unexpected runtime behavior.

The crash is consistent from one build of the application to another build of the application after minimal code changes have been made. However, the crash may occur in different areas of the application if the code is changed significantly. The crash does not occur in debug builds of the application.



Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 2005 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer 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
The following list contains prerequisites for the hotfix:
 * Microsoft Visual Studio 2005 SP1

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace a previously released update.

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 item in Control Panel.



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

Keywords: kbpubtypekc kbqfe kbfix kbbug KB933096

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