Description of the Outlook 2003 Junk E-Mail filter update: May, 2006

This update provides the Junk E-mail Filter in Microsoft Office Outlook 2003 with a more current definition of which e-mail messages should be considered junk e-mail. This update was released in May 2006.

Update details

Earlier released updates that are replaced by this update

The update for the Outlook 2003 Junk E-mail Filter (KB916521) replaces the following previously released updates:

Installation details

How to obtain and install this update

The update for the Outlook 2003 Junk E-mail Filter (KB916521), and also installation instructions and deployment strategies, are found on the Microsoft Download Center.

To download this update from the Microsoft Download Center, visit the following Web site:

How to determine whether the update is installed

Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

1. Click Start, and then click Search.
2. In the Search Results window, click All files and folders in the Search Companion pane.
3. In the All or part of the file name box, type Outlfltr.dat, and then click Search.
4. In the list of files, right-click Outlfltr.dat, and then click Properties.
5. On the Version tab, determine the version of the Outlfltr.dat file that is installed on the computer.

How to determine whether the update is installed

The update contains files that have the versions that are listed in the following table.
You do not have to install this update if you have a later version of the Outlfltr.dat file that is listed in the table.

Information for administrators about .msp files

The administrative update is made up of a full-file Microsoft Windows Installer patch file (.msp file) that is packaged in a self-extracting executable file. The following .msp file is distributed in this update:

Features for reinstalling specific components for administrators

If you update your administrative installation point and then recache and reinstall Outlook 2003 on client computers, you can run a command line that includes the REINSTALL=[list of features] property. This property specifies whether you want to reinstall specific components of Outlook 2003 from the administrative image. For this update, the value for REINSTALL=[list of features] is as follows:Optionally, you can substitute the REINSTALL=ALL parameter to reinstall all Microsoft Office components on the client computer.

For detailed procedures to update an administrative image and update client computers, see the "Updating clients from a patched administrative image" section in the "Distributing Office 2003 Product service packs" topic. To view the "Distributing Office 2003 Product service packs" topic, visit the following Microsoft Web site:The Office Admin Update Center for Office IT Professionals contains the latest administrative updates and strategic deployment resources for all versions of Office. For more information about the Office Admin Update Center, visit the following Microsoft Web site: