Error message when you try to forward an e-mail message that contains a modified attachment: "The attachment <name of the document> from the message <subject of the message> is open or in use by another application"

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Article ID: 967629 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • In Microsoft Office Outlook 2007, you open an e-mail message that has a file attached, such as a Word document.
  • You open the Word document, make a change, and then save the changes to the document.

    Note In this case, you are not prompted to select a location for the changed document.
  • You close the document, but you do not close Word.
In this scenario, when you try to forward this message, you receive the following error message:
The attachment <name of the document> from the message <subject of the message> is open or in use by another application. If you continue, you will lose any changes you made to the attachment that is using the other application. Do you want to continue?
If you click Yes in this message, a new message will be created successfully. Additionally, the document that is attached in this new message contains the changes that you made previously.

RESOLUTION

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To forward the e-mail message that contains the changed attachment and to avoid receiving the error message, install the Outlook 2007 hotfix package that is dated February 24, 2009. Then, set the
ExtensionsToExcludeFromTracking
registry entry to enable the hotfix. To do this, follow these steps:
  1. Install the Outlook 2007 hotfix package that is dated February 24, 2009. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
    961752 Description of the Outlook 2007 hotfix package (Outlook.msp): February 24, 2009
  2. Set the
    ExtensionsToExcludeFromTracking
    registry entry. To do this, follow these steps:
    1. Start Registry Editor.
      • In Windows Vista, click Start
        Collapse this imageExpand this image
        the Start button
        , type regedit in the Start Search box, and then press ENTER.

        Collapse this imageExpand this image
        User Account Control
        If you are prompted for an administrator password or for confirmation, type the password, or provide confirmation.
      • In Windows XP, click Start, click Run, type regedit, and then click OK.
    2. Locate and then select the following registry subkey:
      HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Options\General
    3. On the Edit menu, point to New, and then click String Value.
    4. Type ExtensionsToExcludeFromTracking, and then press ENTER:
    5. Right-click ExtensionsToExcludeFromTracking, and then click Modify.
    6. In the Value data box, type the extensions that you do not want to track, and then click OK.

      Note The extensions that you type inside the Value data box could be a list, such as the following:
      docx;docm;doc;dotx;dotm;dot;xlsx;xlsm;xlsb;xls;xltx;xlt;xlm;pptx;pptm;ppt;pub;xsn;vsd;vss;vst;vdx;vsx;vtx;one
    7. On the File menu, click Exit to exit Registry Editor.

Properties

Article ID: 967629 - Last Review: March 5, 2009 - Revision: 1.1
APPLIES TO
  • Microsoft Office Outlook 2007
Keywords: 
kbsurveynew kbexpertiseinter kbqfe KB967629

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