WM_TIMER
timer messages may stop being delivered to programs on systems that run longer
than 497 days. This may cause portions of programs to stop working. For
example, if a program updates a window when it receives a
WM_TIMER message, window updating stops.
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To resolve this problem, obtain the latest service pack for Windows XP.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 (http://support.microsoft.com/kb/322389/)
How to obtain the latest Windows XP service pack
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.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.
| Date | Time | Version | Size | File name |
| 29-May-2006 | 19:18 | 5.1.2600.1850 | 1,901,056 | ntkrnlmp.exe |
| 29-May-2006 | 19:18 | 5.1.2600.1850 | 1,956,096 | ntkrnlpa.exe |
| 29-May-2006 | 19:18 | 5.1.2600.1850 | 1,929,216 | ntkrpamp.exe |
| 29-May-2006 | 19:51 | 5.1.2600.1850 | 2,041,088 | ntoskrnl.exe |
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows XP Service Pack 2.
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