The "Open File - Security Warning" Message (Unblock)
Description of the Attachment Manager
http://support.microsoft.com/kb/883260
The Attachment Manager classifies files that you receive or that you
download based on the file type and the file name extension. Attachment
Manager classifies files types as high risk, medium risk, and low risk.
When you save files to your hard disk from a program that uses the
Attachment Manager, the Web content zone information for the file is
also saved with the file. For example, if you save a compressed file
(.zip) that is attached to an e-mail message to your hard disk, the Web
content zone information is also saved when you save the compressed file.
When you try to extract the contents from the compressed file, or if you
try to run a file, you cannot. The Web content zone information is saved
together with the files only if the hard disk uses the NTFS file system.
You can open a blocked file from a known source if you want to.
(1) Unblocking a file:
1. Right-click the blocked file, and then click Properties.
2. In the General tab, click Unblock.
(2) Removing the blocking data:
Move the file to a non NTFS drive (FAT, Linux, CD/DVD, US
. The
blocking data will be lost on copy because it's only used by the
NTFS file system. Just move it then move it back.
(3) Disable the security warning when opening files:
1. Copy below and paste into Notepad.
----------copy inside only----------
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download]
"CheckExeSignatures"="no"
"RunInvalidSignatures"=dword:00000001
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments]
"SaveZoneInformation"=dword:00000001
----------copy inside only----------
2. Save-as IE_Unblock.reg (or any name + .reg)
3. Double-click or right-click and merge into the registry.
(4) Add the site to Internet Explorer's 'Trusted Zone'.
(5) Using Group Policy:
Open the 'Group Policy Editor' and go to 'User Configuration-->
Administrative Templates-->Windows Components-->Attachment Manager'
and set the option, "Inclusion list for moderate file types" to
"Enabled" and add the file extensions not to block.
(6) Mark of the Web (MOTW)
Local Machine Lockdown and Cross Domain Protection prohibits objects
from being opened in the browser from direct links to the objects unless
Local Machine Lockdown is enabled on the machine.
Using the MOTW will remove the warning about Active Content running in HTML
files on the local machine, but Local Machine Lockdown must be enabled at
the same time in order for links to work.
1. Use MOTW in all HTML files.
<!doctype>
<!-- saved from url
0014)about:internet -->
<HTML>
2. Ensure Local Machine Lockdown is enabled.
'Tools-->Internet Options-->Advanced-->Security'
Uncheck "Allow active content to run in files on My Computer".
ju.c
"FM" <spam@uce.gov> wrote in message news:ek980p8BLHA.5848@TK2MSFTNGP06.phx.gbl...
> Using XP sp3 Pro. When I download any file, for instance, a jpg/jpeg/gif
> image, when I try to open that image I get the open file security warning
> 'Do you want to open this file?'. There is a checkbox (Always ask before
> opening this file) and regardless of whether it is ticked or not I still get
> the open file confirmation dialogue showing itself everytime I download any
> file and try to open it. Now how can I stop this confirmation. Everytime I
> download an image and open it I have to untick this confirmation dialogue.
> In Folder Options>File Types tab>Jpg and jpeg extensions>advanced
> button...the confirm open after download is unchecked, so why do I still get
> the open file security dialogue everytime I want to open a newly downloaded
> file/image. I appreciate the value of this default for say an exe extension
> but is there some setting I can do get rid of this confirmation for certain
> file types?
>
> Regards
> FM
>
>