Configure the request of extended file details when opening a file

When opening a file over a network, then besides requesting the file contents, then it also request extended details about the file and the share it resides upon. This gives extra traffic and can increase the time it takes to open a file (Especially if on slow network connections like VPN over DialUp).

One can disable this fetching of extended details by adding the following values to the registry:

REGEDIT4

[HKEY_CLASSES_ROOT\*\shellex\PropertySheetHandlers\{3EA48300-8CF6-101B-84FB-666CCB9BCD32}]
"SuppressionPolicy"=dword:00100000

[HKEY_CLASSES_ROOT\*\shellex\PropertySheetHandlers\{883373C3-BF89-11D1-BE35-080036B11A03}]
"SuppressionPolicy"=dword:00100000

[HKEY_CLASSES_ROOT\*\shellex\PropertySheetHandlers\CryptoSignMenu]
"SuppressionPolicy"=dword:00100000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SCAPI]
"Flags"=dword:00100c02

Note the latest service pack for Win2k(SP4) / WinXP(SP1) has to be applied first before it will recognize these registry entries.

More Info MS KB321126
More Info MS KB829700

Credits www.jsifaq.com

Updated: 21 November 2007

Comments:

  1. ronald says:

    You suggest to add the following key:

    [HKEY_LOCAL_MACHINE \SOFTWARE \Microsoft \Windows \CurrentVersion \Explorer \SCAPI]
    "SuppressionPolicy"=dword:00100c02

    But in MS KB 829700 it is suggested to:

    Add the Flags DWORD value to the following registry key:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SCAPI

    To do so:
    In Registry Editor, locate and then click the following registry key:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SCAPI

    On the Edit menu, point to New, and then click DWORD Value.
    Type Flags, and then press ENTER.
    On the Edit menu, click Modify.
    Click Hexadecimal, type 00100c02 in the Value data box, and then click OK.
    Quit Registry Editor.

    So is it "Flags" or is it "SuppressionPoliciy"?

  2. snakefoot says:

    ronald
    So is it "Flags" or is it "SuppressionPoliciy"?

    Think I have been a little too quick on the copy and paste function. I will trust Microsoft on this one and correct my own page.

    Thanks for the heads up.

  3. Jamey says:

    I was just working on making these changes to my registry. I did the first three just fine. But the 4th, my windows 7 does not have SCAPI, I can only get to Explorer, nothing exists after that.

    [HKEY_LOCAL_MACHINE \SOFTWARE \Microsoft \Windows \CurrentVersion \Explorer \SCAPI]

    Any suggestions?

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