Slow network performance when you open a file that is located in a shared folder on a remote network computer
2008-11-11 11:08
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link:Slow network performance when you open a file that is located in a shared folder on a remote network computer
When you use Windows Explorer to connect to a shared folder on a remote computer on your network, and you double-click a file in that shared folder to open it, it may take a longer time than expected to open the file. For example, you may experience this issue when you open a Microsoft Office document over a slow connection, such as a 64-kilobits-per-second (kbps) Integrated Services Digital Network (ISDN) connection on a wide area network (WAN).
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This issue occurs because Windows Explorer tries to obtain detailed information about the remote share and about the file that you are opening. This operation may take a long time over a slow connection.
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260910 (http://support.microsoft.com/kb/260910/) How to obtain the latest Windows 2000 service pack
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322756 (http://support.microsoft.com/kb/322756/) How to back up and restore the registry in Windows
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To do this, follow these steps:
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For more information about how to troubleshoot similar network performance issues, click the following article numbers to view the articles in the Microsoft Knowledge Base:
321126 (http://support.microsoft.com/kb/321126/) The "Look In" and "Save As" boxes in common dialog boxes are slow
265396 (http://support.microsoft.com/kb/265396/) Slow network performance occurs when you select a file on a share that uses NTFS
SYMPTOMS
loadTOCNode(1, 'symptoms');When you use Windows Explorer to connect to a shared folder on a remote computer on your network, and you double-click a file in that shared folder to open it, it may take a longer time than expected to open the file. For example, you may experience this issue when you open a Microsoft Office document over a slow connection, such as a 64-kilobits-per-second (kbps) Integrated Services Digital Network (ISDN) connection on a wide area network (WAN).
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CAUSE
loadTOCNode(1, 'cause');This issue occurs because Windows Explorer tries to obtain detailed information about the remote share and about the file that you are opening. This operation may take a long time over a slow connection.
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RESOLUTION
loadTOCNode(1, 'resolution');Windows XP
loadTOCNode(2, 'resolution');To resolve this issue for Microsoft Windows XP, follow the directions in the "Changing the registry" section.Back to the top
Windows 2000
loadTOCNode(2, 'resolution');To resolve this issue for Microsoft Windows 2000, first obtain and install the latest service pack for Windows 2000, and then follow the directions in the "Changing the registry" section. To resolve this problem, obtain the latest service pack for Windows 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:260910 (http://support.microsoft.com/kb/260910/) How to obtain the latest Windows 2000 service pack
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Changing the registry
loadTOCNode(2, '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 (http://support.microsoft.com/kb/322756/) How to back up and restore the registry in Windows
1. | Add the SuppressionPolicy DWORD value to the following registry key: HKEY_CLASSES_ROOT\*\Shellex\PropertySheetHandlers\CryptoSignMenu To do so:
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2. | Add the SuppressionPolicy DWORD value to the following registry key: HKEY_CLASSES_ROOT\*\Shellex\PropertySheetHandlers\{3EA48300-8CF6-101B-84FB-666CCB9BCD32} To do so:
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3. | Add the SuppressionPolicy DWORD value to the following registry key: HKEY_CLASSES_ROOT\*\Shellex\PropertySheetHandlers\{883373C3-BF89-11D1-BE35-080036B11A03} To do so:
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4. | Add the Flags DWORD value to the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SCAPI To do so:
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Adding a Group Policy
loadTOCNode(2, 'resolution');Besides the direct registry modifications that are described in the "Changing the registry" section, you can also resolve this issue by using a Group Policy. Administrators can control which shell extensions can run by using the Approved key and the EnforceShellExtensionSecurity policy. The SuppressionPolicy value is tied to the EnforceShellExtensionSecurity policy. You can add this policy to enable the modified shell behavior.To do this, follow these steps:
1. | Click Start, click Run, type Gpedit.msc, and then click OK. |
2. | Under User Configuration in the left pane, expand Administrative Templates, expand Windows Components, and then click Windows Explorer. |
3. | In the right pane, double-click Allow only per user or approved shell extensions, click Enabled, and then click OK. |
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REFERENCES
loadTOCNode(1, 'references');For more information about how to troubleshoot similar network performance issues, click the following article numbers to view the articles in the Microsoft Knowledge Base:
321126 (http://support.microsoft.com/kb/321126/) The "Look In" and "Save As" boxes in common dialog boxes are slow
265396 (http://support.microsoft.com/kb/265396/) Slow network performance occurs when you select a file on a share that uses NTFS
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