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Security warning on outlook email attachments - I now have to save them first.

Posted on 2008-06-18
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Last Modified: 2011-10-19
Just recently, Outlook now only allows me to save an .doc, .mdb, ... file, I can no longer just open it from within Outlook.  I've modified the registry with the follow setting under ...security/outlook.  RemoveWarningFileTypes.  But that doesn't seem to fix my issue.  Can anyone point in the  correct direction so that I can modify the behaviour of Outlook 2007.
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Question by:dcmense
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Expert Comment

by:war1
ID: 21817811
Hello dcmense,

Here is how to modify security warnings for attachment
http://support.microsoft.com/kb/259514

The subkey is outlook/security, not the other way around that you posted.  Reboot the computer after you make the changes and test. Back up your registry first.

Hope this helps!
war1
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Author Comment

by:dcmense
ID: 21817964
Thanks war1,

However, this does not work.  I did have to change the reference from 9.0 in the string to 12.0 to fit my verion of outlook.  In that article it states that it does not affect doc, xls, etc. files.  That you need to change that somewhere else in the office application.

This worked fine about a week ago and just started this apparently on it's own.  I figuring that something got downloaded in a security update and that's what going on.  I have searched the net, but I can not find anything that relates to the latest version of Office/Outlook.

Any other ideas?

Brian
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Expert Comment

by:war1
ID: 21818110
Brian,

1. You may have gone into Level1Remove registry key
http://www.slipstick.com/outlook/esecup/getexe.asp
or
Use TweakOL2003 to Dis/enable Attachment Security
http://www.freewarepub.org/freeware/TweakOL-2003.html
or
OutlookTools to unblock attachments
http://www.howto-outlook.com/products/outlooktools.htm

and put a 1 for doc file.  Return it to 0. Do the same for other extension.  Putting a 1 there cause Outlook to only allow you to download the file.

2. If no joy, The Outlook folder where attachment opens may be full. Clear the files from Outlook cache folder OLKxx.  This folder is difficult to access. Here is a way to access the folder and files
http://www.outlook-tips.net/archives/2003/20030828.htm

In Vista, the Secure Temp folder is located at C:\Users\\AppData\Local\Temporary Internet Files\Content.Outlook\X30MWG3N
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Author Comment

by:dcmense
ID: 21839230
Hi war1,

I have tried all of the sources above and I still get that Security Warning about the attachment and the only thing I'm allowed to do is save the file to disk.  I have attached two files that are exports of my registry so that you can see the exact information containe within.

Thanks for trying to help me out on this!

Brian
UserSecurity.txt
MachSecurity.txt
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Accepted Solution

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war1 earned 500 total points
ID: 21839534
Backup your registry.  In registry represented by MachSecurity.txt, by RemoveWarningFileTypes, remove . d o c ; .m d b ; . x l s
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Author Closing Comment

by:dcmense
ID: 31468602
Thanks a bunch war1!  It now works, all I did as you indicated remove the file extensions and everything was great.
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Expert Comment

by:war1
ID: 21839717
dcmense, glad the problem is fixed.
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