You cannot set the maximum number of nested windows in Windows Vista or in Windows Server 2003

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Article ID: 936775 - View products that this article applies to.
Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry
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SYMPTOMS

In Microsoft Windows Server 2003 or in Windows Vista, you cannot set the maximum number of nested windows.

A program can create up to 50 nested windows. If an application tries to create more than 50 nested windows in a window hierarchy, the nested windows that are created after the first 50 may not work.

CAUSE

This problem occurs because the maximum number of nested windows is hard-coded in the Win32k.sys file.

RESOLUTION

Windows Vista service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

Windows Vista 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
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.After you apply this hotfix, you can set the maximum number of nested windows by using a registry entry. For more information, see the instructions in the "Registry information" section.
Prerequisites
No prerequisites are required.
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 hotfixes.
Registry information
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To set the maximum number of nested windows, follow these steps:
  1. Click Start, type regedit in the Start Search box, and then press ENTER.
  2. Locate and then click the following registry subkey:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
  3. On the Edit menu, point to New, and then click DWORD Value.
  4. Type USERNestedWindowLimit, and then press ENTER.
  5. Right-click USERNestedWindowLimit, and then click Modify.
  6. Under Base, click Decimal.
  7. In the Value data box, type a new value.
  8. Click OK, and then exit Registry Editor.
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, 32-bit versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Update.mumNot applicable1,99321-May-200714:20Not applicable
X86_31124cfa63a45c931775efd34c6f88c1_31bf3856ad364e35_6.0.6000.20602_none_c4279d87e87fd181.manifestNot applicable69421-May-200714:20Not applicable
X86_microsoft-windows-win32k_31bf3856ad364e35_6.0.6000.20602_none_b798d68db67c0e20.manifestNot applicable6,92821-May-200714:21Not applicable
Win32k.sys6.0.6000.206022,028,03219-May-200701:40x86
Windows Vista, 64-bit versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Amd64_2aa37c1636436a16483f80364b61e988_31bf3856ad364e35_6.0.6000.20602_none_148d56f42671604e.manifestNot applicable69821-May-200714:20Not applicable
Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6000.20602_none_13b772116ed97f56.manifestNot applicable6,94421-May-200714:26Not applicable
Update.mumNot applicable2,00521-May-200714:20Not applicable
Win32k.sys6.0.6000.206022,749,95219-May-200701:33x64

Windows Server 2003 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
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.After you apply this hotfix, you can set the maximum number of nested windows by using a registry entry. For more information, see the instructions in the "Registry information" section.
Prerequisites
To apply this hotfix, you must have Windows Server 2003 Service Pack 1 or Windows Server 2003 Service Pack 2 installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
889100 How to obtain the latest service pack for Windows Server 2003
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 hotfixes.
Registry information
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To set the maximum number of nested windows, follow these steps:
  1. Click Start, click Run, type regedit, and then click OK.
  2. Locate and then click the following registry subkey:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
  3. On the Edit menu, point to New, and then click DWORD Value.
  4. Type USERNestedWindowLimit, and then press ENTER.
  5. Right-click USERNestedWindowLimit, and then click Modify.
  6. Under Base, click Decimal.
  7. In the Value data box, type a new value.
  8. Click OK, and then exit Registry Editor.
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 Server 2003 with Service Pack 2, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Gdi32.dll5.2.3790.4033282,62402-Mar-200706:41x86SP2
Win32k.sys5.2.3790.40891,845,76028-May-200713:10x86SP2
Windows Server 2003 with Service Pack 2, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Gdi32.dll5.2.3790.4033619,52029-May-200722:19x64SP2Not applicable
Win32k.sys5.2.3790.40894,531,71229-May-200722:19x64SP2Not applicable
Wgdi32.dll5.2.3790.4033290,81629-May-200722:19x86SP2WOW
Windows Server 2003 with Service Pack 2, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Gdi32.dll5.2.3790.4033913,40829-May-200722:19IA-64SP2Not applicable
Win32k.sys5.2.3790.40895,557,24829-May-200722:19IA-64SP2Not applicable
Wgdi32.dll5.2.3790.4033290,81629-May-200722:19x86SP2WOW
Windows Server 2003 with Service Pack 1, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Gdi32.dll5.2.3790.2892284,16002-Mar-200708:11x86SP1
Win32k.sys5.2.3790.29441,854,97628-May-200713:45x86SP1
Windows Server 2003, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Gdi32.dll5.2.3790.2892617,47229-May-200722:14x64SP1Not applicable
Win32k.sys5.2.3790.29444,537,85629-May-200722:14x64SP1Not applicable
Wgdi32.dll5.2.3790.2892287,74429-May-200722:14x86SP1WOW
Windows Server 2003 with Service Pack 1, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Gdi32.dll5.2.3790.2892909,31229-May-200722:15IA-64SP1Not applicable
Win32k.sys5.2.3790.29445,553,15229-May-200722:15IA-64SP1Not applicable
Wgdi32.dll5.2.3790.2892287,74429-May-200722:15x86SP1WOW

STATUS

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 Vista Service Pack 1.

MORE INFORMATION

The same problem occurs in Microsoft Windows XP. To obtain a hotfix for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
814789 Windows stops responding with "Stop Error 0x7F" error message
For more information about the terms that are used to describe software updates, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 936775 - Last Review: October 8, 2011 - Revision: 5.0
APPLIES TO
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
Keywords: 
kbautohotfix kbvistasp1fix kbexpertiseinter kbwinvistapostrtmfix kbwinserv2003postsp2fix kbbug kbfix kbHotfixServer kbqfe KB936775

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