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The NTVDM CommsAutoClose setting does not work in Windows XP
Article ID: 892520 - View products that this article applies to.
Assume the following scenario. In Microsoft Windows XP, you run a 16-bit application for which the following conditions are true:
This problem occurs because the NTVDM CommsAutoClose setting does not work in Windows XP. Specifically, the code that handles the CommsAutoClose registry entry is not included in Windows XP.
Hotfix informationA 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:
http://support.microsoft.com/contactus/?ws=supportNote 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.
PrerequisitesYou must have Windows XP Service Pack 1 (SP1) or Windows XP Service Pack 2 (SP2) installed before you apply this hotfix.
Restart requirementYou do not have to restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File InformationThe 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.
Windows XP Service Pack 1
Windows XP Service Pack 2
Date Time Version Size File name ---------------------------------------------------------- 01-Dec-2004 06:03 22.214.171.124 92,224 Krnl386.exe 01-Dec-2004 05:56 33,840 Ntio.sys 01-Dec-2004 05:56 34,560 Ntio404.sys 01-Dec-2004 05:56 35,648 Ntio411.sys 01-Dec-2004 05:56 35,424 Ntio412.sys 01-Dec-2004 05:56 34,560 Ntio804.sys 19-Jan-2005 03:37 5.1.2600.1620 396,800 Ntvdm.exe 04-Jun-2004 00:43 5.1.2600.1562 245,760 Wow32.dll
Date Time Version Size File name -------------------------------------------------------- 19-Jan-2005 03:12 5.1.2600.2598 420,352 Ntvdm.exe
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684For more information about the same problem in Microsoft Windows 2000, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
(http://support.microsoft.com/kb/301183/ )The NTVDM CommsAutoClose setting does not work in Windows 2000