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Article ID: 842738 - Last Review: June 1, 2006 - Revision: 1.4

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SYMPTOMS

When ActiveX Controls are hosted in windows that are created by using the CAxWindow class, and the windows are destroyed, the operation of creating and destroying the hosting window may cause a handle leak. This problem occurs if none of the ActiveX Control properties are set.

If the process of creating and destroying these windows is performed frequently, this process leads to handle starvation and unexpected application behavior. When an ActiveX Control is hosted on a CAxWindow class, Active Template Library (ATL) allocates a global handle that is not freed when the window is destroyed. This leads to a leak in handle resources.

RESOLUTION

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 (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.

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
   --------------------------------------------------------------
   01-Jun-2004  21:36  3.0.9786.0         90,169  Atl.dll          

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

REFERENCES

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

APPLIES TO
  • Microsoft Visual Studio 6.0 Enterprise Edition
Keywords: 
kbfix kbbug kbhotfixserver kbqfe KB842738
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