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Open file security warning when opening links/lnk files

Posted on 2013-01-25
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Last Modified: 2013-01-25
I am trying to disable open file security waning for users through GPO. When they open a link they get a open file security warning, which they are not too happy about. I have done the following changes in GPO, and seen them in effect on my testuser through rsop.msc, but the open file security warning still prevails on the users terminal servers running server 2008.

"User Configuration" -> "Windows Settings" -> "Internet Explorer Maintenance" -> "Security". Right click "Security Zones and Content ratings" -> "Properties". -> "Modify settings", ->  "Local intranet" -> "Sites". -> "Advanced..." - added *.customerdomain.local and servername to which the link links to(links over a unc path).

I also changed  "Do not preserve zone information in file attachments" in Default domain policy on user configuration to enabled and modified "Inclusion list for low file types" to incude .lnk and various other file types.

By Googling this problem, it seems that this should be the solution. But it is not in this case. Any ideas?
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Question by:itnifl
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Nik earned 500 total points
ID: 38817775
I needed the procedure for .exe files, but it should also work with other extensions.

http://www.wincert.net/tips/microsoft-windows/2065-open-file-security-warning-the-publisher-could-not-be-verified-are-you-sure-you-want-to-run-this-software

Let me know if this helped.
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by:itnifl
ID: 38818261
Essentially, your guide is exactly the same as what I have been doing, only I did it via GPO instead of local policies and settings.

I have now added the domain suffix, the terminal server, the application servers, and the DFS  namespace in Local Intranet Sites in IE via GPO, tested and verified via rsop.msc. This did not solve the problem, sadly.
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by:itnifl
ID: 38818335
Appearantly, a policy was overiding "Do not preserve zone information in file attachment" I set in another GPO. Fixing this solved the problem, thus nimatejic's answer was correct.
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Expert Comment

by:Nik
ID: 38818341
I'm glad that you have solved the issue.
Regards,
Nik
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