Microsoft KB Archive/915418

= FIX: An access violation may occur when you try to run a Visual C++ 2005 application that contains OMG CORBA IDL code =

Article ID: 915418

Article Last Modified on 3/22/2007

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APPLIES TO


 * Microsoft Visual C++ 2005 Express Edition
 * Microsoft Visual Studio 2005 Standard Edition
 * Microsoft Visual Studio 2005 Professional Edition
 * Microsoft Visual Studio 2005 Express Edition
 * Microsoft Visual Studio 2005 Team System Architect Edition
 * Microsoft Visual Studio 2005 Team System Developer Edition
 * Microsoft Visual Studio 2005 Team System Test Edition

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SYMPTOMS
An access violation may occur when you try to run a Microsoft Visual C++ 2005 application that contains Object Management Group (OMG) Common Object Request Broker Architecture (CORBA) Interface Description Language (IDL) code. Consider the following scenario:  You create an application in Microsoft Visual C++ 2005.  The application contains OMG CORBA IDL code that is similar to the following: abstract interface Drawable { long draw; }; valuetype Point supports Drawable{ public string name; public long x; public long y; };

interface GraphManager { Point get_point; };  You try to run the application.

In this scenario, you may receive the following error message:

The instruction at &quot; &quot; referenced memory at &quot; &quot;. The memory could not be &quot;read&quot;.



CAUSE
This problem occurs when the Visual C++ compiler generates invalid code. The invalid code causes the application to contain a corrupted v-table. Therefore, the application cannot marshal the Point type when the application calls the get_point method. When this problem occurs, the application experiences an access violation.



Hotfix information
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 2005 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:

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

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



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



MORE INFORMATION
For more information about software update terminology, 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

Keywords: kbfix kbpubtypekc kbhotfixserver kbqfe KB915418

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