Article ID: 259228 - View products that this article applies to.
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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/256986/EN-US/ )Description of the Microsoft Windows Registry
When you apply Microsoft Office 2000 Service Release 1 (SR-1) to Outlook 2000, you receive new options that help you control attachment security. When you apply SR-1, you see a dialog box when you open an attachment from an e-mail message. You can specify file extensions that must be saved to disk, as well as the extensions that may be opened directly from the e-mail message.
Attachment security improvements were first made available in the E-mail Attachment Security Update. For more information about the original E-mail Attachment Security Update improvements, click the following Web address:
http://support.microsoft.com/kb/235309Office 2000 SR-1 further improves dialog box warnings for attachments. With the new dialog box warning feature, you can specify which file extensions trigger the more secure warning.
To obtain SR-1, click the article number below to view the article in the Microsoft Knowledge Base:
245025After you apply SR-1, two registry string values are used to store the list of file extensions. These two registry string values control the warning dialog box for attachments:
(http://support.microsoft.com/kb/245025/ )How to obtain and install Microsoft Office 2000 Service Release 1 (SR-1)
HKEY_LOCAL_MACHINE\Software\Microsoft\Office\9.0\Outlook\Security\RemoveWarningFileTypesNOTE: The OldAttachmentDialog registry setting is no longer used.
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
By default, the Security key is not on your computer if you did not upgrade to Outlook 2000 from an earlier version of Outlook. If the Security key is not on your computer, you must create a Security key. To create a Security key:
NOTE: The "XYZ" and "ABC" extensions are examples. You can use any extensions that you want.
NOTE: If you use the RemoveWarningFileTypes string value name, you must also create the AddWarningFileTypes string value name and set its data to a value that you can name, such as "XYZ." The RemoveWarningFileTypes string value requires the AddWarningFileTypes string value for it to work properly.
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