An application that uses the VDMEnumProcessWOW function to enumerate virtual DOS machines returns no output or incorrect output on a computer that is running a 32-bit version of Windows Vista

An application that uses the VDMEnumProcessWOW function to enumerate virtual DOS machines returns no output or incorrect output on a computer that is running a 32-bit version of Windows Vista

Article ID : 953347
Last Review : June 26, 2008
Revision : 1.1
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SYMPTOMS

Consider the following scenario. You develop an application that uses the VDMEnumProcessWOW function to enumerate virtual DOS machines (VDMs) that are running 16-bit Windows tasks. However, when the application runs on a computer that is running a 32-bit version of Windows Vista, the application returns no output. Or, the application returns incorrect output.

For example, you may experience this problem when you use the application to return a list of 16-bit Notepad instances.

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RESOLUTION

Hotfix information

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:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

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.

Prerequisites

To apply this hotfix, you must have Windows Vista or Windows Vista Service Pack 1 installed.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

File information

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.

Windows Vista, x86-based versions
File name File version File size Date Time Platform
Vdmdbg.dll 6.0.6000.20843 17,408 28-May-2008 03:18 x86
Package_1_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,780 28-May-2008 16:34 Not applicable
Package_2_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,947 28-May-2008 16:34 Not applicable
Package_3_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,785 28-May-2008 16:34 Not applicable
Package_4_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,785 28-May-2008 16:34 Not applicable
Package_5_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,785 28-May-2008 16:34 Not applicable
Package_6_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,781 28-May-2008 16:34 Not applicable
Package_for_kb953347_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,426 28-May-2008 16:34 Not applicable
Package_for_kb953347_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,367 28-May-2008 16:34 Not applicable
Package_for_kb953347_client~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,713 28-May-2008 16:34 Not applicable
Package_for_kb953347_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,421 28-May-2008 16:34 Not applicable
Package_for_kb953347_sc~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,423 28-May-2008 16:34 Not applicable
Package_for_kb953347_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,425 28-May-2008 16:34 Not applicable
Package_for_kb953347_server~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,431 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,422 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,430 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpe_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,420 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpe~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,424 28-May-2008 16:34 Not applicable
Update.mum Not applicable 3,571 28-May-2008 16:34 Not applicable
X86_1230674f8a88d68c64ebbf8f7a0e059f_31bf3856ad364e35_6.0.6000.20843_none_d7e9c98d952391bf.manifest Not applicable 700 28-May-2008 16:34 Not applicable
X86_microsoft-windows-ntvdm-vdmdbg_31bf3856ad364e35_6.0.6000.20843_none_4d483ff89fc7aa8b.manifest Not applicable 3,420 28-May-2008 03:33 Not applicable
Windows Vista SP1, x86-based versions
File name File version File size Date Time Platform
Vdmdbg.dll 6.0.6001.22188 17,408 28-May-2008 03:22 x86
Package_1_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,780 28-May-2008 16:34 Not applicable
Package_2_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,947 28-May-2008 16:34 Not applicable
Package_3_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,785 28-May-2008 16:34 Not applicable
Package_4_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,785 28-May-2008 16:34 Not applicable
Package_5_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,785 28-May-2008 16:34 Not applicable
Package_6_for_kb953347~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,781 28-May-2008 16:34 Not applicable
Package_for_kb953347_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,426 28-May-2008 16:34 Not applicable
Package_for_kb953347_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,367 28-May-2008 16:34 Not applicable
Package_for_kb953347_client~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,713 28-May-2008 16:34 Not applicable
Package_for_kb953347_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,421 28-May-2008 16:34 Not applicable
Package_for_kb953347_sc~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,423 28-May-2008 16:34 Not applicable
Package_for_kb953347_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,425 28-May-2008 16:34 Not applicable
Package_for_kb953347_server~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,431 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,422 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,430 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpe_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,420 28-May-2008 16:34 Not applicable
Package_for_kb953347_winpe~31bf3856ad364e35~x86~~6.0.1.0.mum Not applicable 1,424 28-May-2008 16:34 Not applicable
Update.mum Not applicable 3,571 28-May-2008 16:34 Not applicable
X86_66864717409d37beb1f28bc5beba5e8a_31bf3856ad364e35_6.0.6001.22188_none_f3950db01bdcd860.manifest Not applicable 700 28-May-2008 16:34 Not applicable
X86_microsoft-windows-ntvdm-vdmdbg_31bf3856ad364e35_6.0.6001.22188_none_4f083e7a9d0a2ccc.manifest Not applicable 3,420 28-May-2008 03:48 Not applicable

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STATUS

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

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MORE INFORMATION

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 (/Feedback.aspx?kbNumber=824684/) Description of the standard terminology that is used to describe Microsoft software updates

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APPLIES TO
• Windows Vista Business
• Windows Vista Enterprise
• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Ultimate
• Windows Vista Service Pack 1

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Keywords: 
kbautohotfix kbexpertiseadvanced kbfix kbqfe kbhotfixserver KB953347

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
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