Open Software Solutions

On a Windows Vista-based client computer, you try to open a Microsoft Office document from a Web site hyperlink in a 2007 Microsoft Office application. When you do this, you may experience the following symptoms:

•	Performance is slow, or the 2007 Office application may stop responding for several minutes.
•	You are prompted for authentication even though you previously entered your credentials.
•	You lose session state. Then, you are redirected to a logon page or to an error page on the Web site.
•	The document is downloaded two times. When the files are large, the download process consumes more network bandwidth.

Note These problems do not occur when you try to open the document on a Windows XP-based computer or on a Windows Server 2003-based computer.

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This problem occurs because, on a Windows Vista-based client computer, 2007 Office applications use the Windows WebDAV Mini-Redirector Client component to open URL-based files. This component provides read/write permissions to DAV-based Web servers that support Web authoring.

When you try to open a document from a hyperlink, 2007 Office applications may request that the Windows WebDAV Client try to author the document at the URL location. However, if the authoring attempt is not expected on certain Web servers or in certain situations, the symptoms that are mentioned in the Symptoms section may occur.

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To resolve this problem, follow these steps.

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:

1.

Apply hotfix 954573. For more information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base: 954573 (/Feedback.aspx?kbNumber=954573/) Description of the 2007 Office system hotfix package: June 26, 2008

2.

Enable the hotfix by configuring the UseWinINETCopy registry entry. To do this, follow these steps: a. Click Start, click Run, type regedit, and then click OK. b. Locate and then click the following registry subkey: HKEY_CURRENT_USER SOFTWARE Microsoft Office 12.0 Common Internet c. On the Edit menu, point to New, and then click DWORD Value. d. Type UseWinINETCopy, and then press ENTER. e. Right-click UseWinINETCopy, and then click Modify. f. In the Value data box, type 1, and then click OK. g. Exit Registry Editor.

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

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