Hi Robin,
Thank you a lot for posting back and the clarification. I am sorry that I
have misunderstood your meaning.
The below are my steps to reproduce the problem. If there is anything
wrong, please correct me.
1. I have a clean installed Windows XP with Service Pack 2 computer. This
is the one I boot from the Windows XP SP 2 Setup CD and install the Windows
from scratch.
2. After the installation, click Start, point to My Computer
3. Click Tools -> Folder Option from the menu
4. In View tab, mark the option "Launch folder windows in a separate
process", then click OK button
5. Open Windows Explorer, and open another My Computer. I can see two
explorer.exe in Task Manager
6. In either Explorer window, navigate to C:\Windows, right click
explorer.exe and view its Properties. I can only see General, Version,
Compatibility, Security and Summary tabs. I cannot see the "Digital
Signatures" tab at more. I tried to view the Properties of explorer.exe in
other Explorer window with the same result.
Robin, once again, thank you a lot for helping us to find out the bug in
Windows XP Service Pack 2. I cannot reproduce your scenario based on the
above steps. Please help me to point it out if there is anything wrong in
my steps.
Have a great day!
Thanks & Regards,
Feng Mao [MSFT], MCSE
Microsoft Online Partner Support
Get Secure! -
www.microsoft.com/security
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--------------------
| From: "Robin Walker" <
[email protected]>
| Newsgroups: microsoft.public.windowsxp.security_admin
| Subject: Re: SP2 disappearing "Digital Signatures" tab
| Date: Wed, 11 Aug 2004 11:02:07 +0100
| Organization: University of Cambridge, England
| Lines: 50
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[email protected]>
| References: <
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| |
| > Based on my knowledge, most of files are not signed and it should not
have
| > the Digital Signautre and should not have Digital Signatures tab.
|
| Feng,
|
| You have entirely misunderstood my report. Please read it again, bearing
in
| mind that I am specifically referring to files that are known to have
have
| valid Digital Signatures. I am reporting a problem with Windows Explorer
in
| SP2, not a problem with files not having Digital Signatures.
|
| Furthermore, by configuring Windows to open folders in separate
processes,
| so that there are multiple concurrent "explorer.exe" processes, I have
been
| able to demonstrate missing "Digital Signature" tabs in one instance of
| explorer.exe whilst another instance gets the "Digital Signature" tab
| correctly, when both instances are viewing the Properties of the same
file,
| which is known to have a Digital Signature.
|
| So this must be a problem in Windows explorer.exe.
|
| > | Under XP SP2 (final), in Explorer, it seems to be possible to
| > right-click
| > | a file, select Properties, and see the "Digital Signatures" tab for a
| > | while, and then to come back to the same file a while later, do the
| > same,
| > | and find that the "Digital Signatures" tab is missing.
| > | It seems to affect files one by one: some exhibit the loss of the tab
| > | while others still retain it.
| > | The files are themselves unchanged, and retain the digital signature
| > | internally, but Explorer does not display it to the user in the
| > | Properties panel.
| > |
| > | Once a file has lost the "Digital Signatures" tab, it seems to stay
lost
| > | until a logout/login again, or a system restart.
| > |
| > | I have been unable to discover a guaranteed method of reproducing this
| > | problem, although other users have reported the same difficulty with
| > | disappearing "Digital Signatures" tabs. It might be coincidence, but
it
| > | seems to affect mainly very large files, such as the SP2 updater
itself.
| > | These large files can fail to display the "Digital Signatures" tab,
| > while
| > | other, smaller, older files in the same directory can still display
it.
|
| --
| Robin Walker
| (e-mail address removed)
|
|
|
