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COleDateTime Comparison Asserts or Returns Incorrect Value

This article was previously published under Q326459
This article has been archived. It is offered "as is" and will no longer be updated.
You receive an assertion in debug builds when an instance of the COleDateTime class with null status is compared with another instance with null status by using either of the following operators:
In release builds, the comparison returns an incorrect value.
This is a change in behavior from the Microsoft Foundation Classes (MFC) that is included with Microsoft Visual C++ 6.0.
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: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 typical 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.
   Date          Time    Version        Size        File Name    ----------------------------------------------------------    03-Aug-2002   04:49    7.00.9524.0     974,848   Mfc70.dll   03-Aug-2002   04:49                  9,554,944   Mfc70.pdb   03-Aug-2002   04:06    7.00.9524.0   1,933,312   Mfc70d.dll   03-Aug-2002   04:06                  7,572,480   Mfc70d.pdb   03-Aug-2002   04:39    7.00.9524.0     964,608   Mfc70u.dll   03-Aug-2002   04:39                  9,538,560   Mfc70u.pdb   03-Aug-2002   04:08    7.00.9524.0   1,925,632   Mfc70ud.dll   03-Aug-2002   04:08                  7,597,056   Mfc70ud.pdb   03-Aug-2002   02:49    7.00.9524.0      84,992   Atl70.dll   03-Aug-2002   02:49                  2,011,136   Atl70.pdb   03-Aug-2002   02:49                     14,546   Atl.lib   03-Aug-2002   02:49                     48,090   Atlmincrt.lib   03-Aug-2002   02:49                    934,264   Atls.lib   19-Jul-2002   16:42                    998,634   Atlsd.lib   03-Aug-2002   04:02                 16,466,620   Nafxcw.lib   03-Aug-2002   04:02                 16,601,214   Nafxcwd.lib   03-Aug-2002   04:05                 16,741,976   Uafxcw.lib   03-Aug-2002   04:05                 17,034,618   Uafxcwd.lib   03-Aug-2002   02:49                  1,306,624   Atls.pdb   19-Jul-2002   16:42                  1,306,624   Atlsd.pdb   03-Aug-2002   04:02                  2,068,480   Nafxcw.pdb   03-Aug-2002   04:00                  2,093,056   Nafxcwd.pdb   03-Aug-2002   04:04                  2,068,480   Uafxcw.pdb   03-Aug-2002   04:03                  2,093,056   Uafxcwd.pdb   03-Aug-2002   14:35                    850,944   VC_MFC.msm   02-Aug-2002   18:01                     15,737   ATLComTime.inl				

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Article ID: 326459 - Last Review: 10/26/2013 10:23:00 - Revision: 3.0

Microsoft Foundation Class Library 4.2

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