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Article ID: 295375 - Last Review: March 22, 2007 - Revision: 3.3
PRB: Antivirus software causes FileSystemObject calls to hang IIS
This article was previously published under Q295375
Important These steps may increase your security risk. These steps may also make your computer or your network more vulnerable to attack by malicious users or by malicious software such as viruses. We recommend the process that this article describes to enable programs to operate as they are designed to, or to implement specific program capabilities. Before you make these changes, we recommend that you evaluate the risks that are associated with implementing this process in your particular environment. If you choose to implement this process, take any appropriate additional steps to help protect your system. We recommend that you use this process only if you really require this process.
Important This article contains information that shows you how to help lower security settings or how to turn off security features on a computer. You can make these changes to work around a specific problem. Before you make these changes, we recommend that you evaluate the risks that are associated with implementing this workaround in your particular environment. If you implement this workaround, take any appropriate additional steps to help protect your system.
When you browse to an Active Server Pages (ASP) page that
contains FileSystemObject calls, the request for that page stops responding
(hangs), and then eventually times out in the browser.
This problem occurs because the Script Blocking feature in
Norton AntiVirus software blocks scripting operations that access the file
system, such as
FileSystemObject. Although this problem is prevalent in Active Server Pages (ASP)
Web applications, it can also occur in other technologies, such as Windows
Scripting.
Note This problem occurs even if Norton AntiVirus has been disabled.
In August 2003, Network Associates McAfee added a feature that is named Script Stopper. Script Stopper is similar to Norton AntiVirus Script Blocker. Currently, Script Stopper blocks access to the FileSystemObject. However, Script Stopper may do more than just block access.
Warning This workaround may make your computer or your network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk. To resolve this problem in Norton AntiVirus, contact Norton
AntiVirus Software Support. The following Symantec Web site describes how to
remove the Script Blocking feature:
Note You may have to reboot the server after you make the
above-mentioned changes to the Norton AntiVirus software.
To resolve
this problem in McAfee VirusScan, contact McAfee Technical Support.
Microsoft
provides third-party contact information to help you find technical support.
This contact information may change without notice. Microsoft does not
guarantee the accuracy of this third-party contact
information.
APPLIES TO
- Microsoft Active Server Pages 4.0
| kbfso kbprb kbscript kbsecantivirus kbsecurity kbwebserver KB295375 |
Retired KB Content DisclaimerThis article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
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