Consider the following scenario:
- On a computer that is running 2007 Microsoft Office system, you access the Internet by using a proxy server that is configured for Basic Authentication.
- In Office Outlook 2007, you open an HTML-formatted email message that contains an HTTP reference to an image. This image is located on an Internet server.
In this scenario, the image does not display.
To resolve this issue, apply the following hotfix:
Description of the 2007 Office system hotfix package (oart-x-none.msp, mso-x-none.msp): October 26, 2010
Registry key informationImportant
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:
How to back up and restore the registry in Windows
After you install the hotfix package, follow these
steps to enable the hotfix:
- Click Start, click Run, type regedit in the Open box, and then click OK.
Locate and then select the following registry subkey:
- On the Edit menu, point to New, and then click DWORD Value.
- Type AllowImageProxyAuth, and then press ENTER.
- In the Details pane, right-click AllowImageProxyAuth, and then click Modify.
- In the Value data box, type 1 or 2, and then click OK.
- If you set the value to 1, you are prompted for authentication one time per Outlook session in the scenario that is described in the "Symptoms" section. If you cancel the authentication request, you are not prompted again during that Outlook session. This option introduces a small volume of network overhead per Outlook session.
- If you set the value to 2 (the recommended value), you are prompted for authentication when it is required. Typically you are prompted for authentication one time per Outlook session. However, in some scenarios, you may be prompted multiple times. For example, if you cancel the authentication request for one image, you are prompted again for the next image that requires proxy authentication. This option introduces a small volume of network overhead for each image.
- If the value is nonexistent or if you set it to 0, you are not prompted for authentication and the image might not be displayed correctly.
- Exit Registry Editor.
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
Article ID: 2434342 - Last Review: October 27, 2010 - Revision: 1.0
- Microsoft Office Basic 2007
- Microsoft Office Enterprise 2007
- Microsoft Office Home and Student 2007
- Microsoft Office Professional 2007
- Microsoft Office Small Business 2007
- Microsoft Office Standard 2007
- Microsoft Office Ultimate 2007
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