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Downloading a file using Internet Explorer 8 results in duplicate application launches

When attempting to download a file using Internet Explorer 8, the application associated with the file starts twice. For example, if you attempt to download a .doc file, Microsoft Word may launch twice. This may occur when all of the following conditions exist:
  • The SmartScreen filter feature of Internet Explorer 8 is enabled
  • Internet Explorer 8 cannot connect to the SmartScreen online service
  • Internet Explorer 8 Protected Mode is not enabled. Note that if Internet Explorer 8 is running on Windows XP or Windows Server 2003, the Protected Mode feature is not available

When you download a file using Internet Explorer 8, a SmartScreen filter for the file is activated. As part of the SmartScreen filter processing, Internet Explorer 8 tries to connect to the Microsoft server over TCP Port 443. If Internet Explorer 8 cannot access, Internet Explorer 8 launches the file's associated application twice.

To workaround this problem, use one of the following methods:

Method 1: Add the file download site to the local intranet zone in Internet Explorer

This method adds the file download site to the local intranet zone file after you download the necessary source settings.

  1. Start Internet Explorer
  2. Click the Tools menu button, then click Internet options
  3. Click the Security tab
  4. Click the Sites button to point to the local intranet zone
  5. Click the Advanced Settings button on the local intranet screen
  6. Type the address of the site you want to download the file(s) from, and then click the Add button
  7. Click Close, then Ok, and then Ok.
NOTE: After downloading the file, you may consider removing the site from the local intranet zone in Internet Explorer.

Method2: Troubleshoot internet connectivity to the SmartScreen online services.

Troubleshoot any network connectivity issues that could be prohibiting you from connecting to the internet.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information, see the following Microsoft Web sites:

To change the security settings for Internet Explorer

Understanding Internet Explorer protected mode and functions

Article ID: 973082 - Last Review: 09/28/2011 14:26:00 - Revision: 3.0

  • Windows Internet Explorer 8
  • kbtshoot kbharmony kbexpertiseinter KB973082