The Private Bytes counter in Performance Monitor may continually increase when an ActiveX control that is in an Office 2003 document is updated

Support for Office 2003 has ended

Microsoft ended support for Office 2003 on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article has been archived. It is offered "as is" and will no longer be updated.
Important This article contains information about how to modify the registry. Make sure to 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
Assume a situation where you are working with a Microsoft Office 2003 document that contains an ActiveX control. The Active X control updates the data that is in the control.

In this situation, the Private Bytes counter in Performance Monitor may continually increase. Additionally, if you close the Office 2003 document, the resources are not released.
This problem may occur because the Mso.dll file creates EMF files when the data is updated in the ActiveX control. Therefore, the path of each EMF file that displays the ActiveX control changes. These changes cause an increase in resource usage.
This problem was first fixed in a hotfix that is now contained in a service pack. If you installed the latest Office 2003 service pack, you do not have to install the hotfix.

Service pack information

This problem is corrected in Office 2003 Service Pack 3. To resolve this problem, obtain the latest service pack for Office 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
870924 How to obtain the latest service pack for Office 2003

After you install the service pack, follow the steps that are listed in the "More Information" section of the article to set the GELPrefs registry key and to activate the hotfix.

Hotfix information

How to obtain the hotfix

This issue is fixed in the Microsoft Office 2003 Hotfix Package that is dated November 10, 2005. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
898778 Description of the Microsoft Office 2003 post-Service Pack 2 hotfix package: November 10, 2005
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 your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Note When you enable this hotfix, the caching of pictures in an Office 2003 document will be turned off. Therefore, documents that contain many or large pictures may open more slowly in an Office 2003 program.
More information
To enable this hotfix, follow these steps:
  1. Quit all Office 2003 programs.
  2. Click Start, click Run, type regedit, and then click OK.
  3. Locate and then click to select the following registry key:
  4. On the Edit menu, point to New, and then click Key.
  5. Type GELPrefs, and then press ENTER.
  6. With the GELPrefs subkey selected, point to New on the Edit menu, and then click DWORD Value.
  7. Type DisableBlipCaching, and then press ENTER.
  8. Right-click DisableBlipCaching, and then click Modify.
  9. In the Value data box, type 1, and then click OK.
  10. On the File menu, click Exit to quit Registry Editor.
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 Office 2003 Service Pack 3.
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Article ID: 900460 - Last Review: 01/16/2015 15:32:28 - Revision: 4.0

  • Microsoft Office Professional Edition 2003
  • Microsoft Office Small Business Edition 2003
  • Microsoft Office Basic Edition 2003
  • Microsoft Office Access 2003
  • Microsoft Office InfoPath 2003
  • Microsoft Office OneNote 2003
  • Microsoft Office Outlook 2003
  • Microsoft Office PowerPoint 2003
  • Microsoft Office Publisher 2003
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