A computer that is running Windows 7 or Windows Server 2008 R2 takes four minutes to open a Microsoft Office 2003 document from a network share

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 the problem described in this article. 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=supportNote 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.

Workaround for Windows 7 and for Windows Server 2008 R2

To work around this issue, disable the Server Message Block (SMB) signing through registry keys. To do this, follow these steps:

• Click Start , type regedit in the Search programs and files box, and then press ENTER.

• • On a server, locate and then click the following registry entry:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters

  • On a client computer, locate and then click the following registry entry:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanWorkstation\Parameters

• Under the registry entry, disable these two registry keys:

  • Right-click Enablesecuritysignature, and then click Modify. Type 0 in the Value data box and then click OK.

  • Right-click Requiresecuritysignature, and then click Modify. Type 0 in the Value data box and then click OK.

Reproduce steps

For example, you may encounter the issue if you follow these steps:

1. On a computer that is running Windows 7, connect to a network share on a file server. This file server also works as a domain controller.
   

2. Open a Microsoft Office Excel 2003 file from the file server.
   

3. Close the Excel 2003 file and lock the computer. Keep the computer in running overnight.

4. Log on to the computer the next morning.

5. Try to open any Office 2003 file.

In this example, you experience four-minute delay to open the Office 2003 file.

For more information about examples about message signing, visit the following Microsoft website:

Message signing examplesFor more information about software update terminology, 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

Additional file information