Article ID: 330422 - View products that this article applies to.
This article was previously published under Q330422
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When you try to unregister an unregistered debug build of an attributed Active Template Library (ATL) component, the debug assertion fails and you receive the following error message:
Debug Assertion Failed!
File: c:\program files\microsoft visual studio .net\vc7\atlmfc\include\atlbase.h
Expression: hKeyParent != 0
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 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote 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 fix 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.
NOTE: You must rebuild your ATL project after you install this patch.
Date Time Size File name ------------------------------------- 19-Oct-2002 00:48 26,955 Atlplus.h
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.