FIX: Windows Media Player 9 Series uses a proxy server although Group Policy is set to use None

This article has been archived. It is offered "as is" and will no longer be updated.
Although you set Group Policy to use None for the proxy server in Microsoft Windows Media Player 9 Series, and although the user interface (UI) in the player appears correctly, you receive an error message. The proxy server that was previously set is returned.

For Hypertext Transfer Protocol (HTTP) streaming on a default installation of Windows Media Player, this proxy server setting is the same as the proxy server settings of the browser.
This problem occurs because the underlying network code still uses the proxy server that was specified before Group Policy was set to None.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next release that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The following file is available for download from the Microsoft Download Center:
DownloadDownload the WindowsMedia9-KB840595-ENU.exe package now.

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version            Size    File name   --------------------------------------------------------------   12-Apr-2004  17:35      4,722,688  Wmp.dll          
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Article ID: 840595 - Last Review: 01/12/2015 00:22:13 - Revision: 4.0

Microsoft Windows Media Player 9 Series, Windows Media 9 Series Software Development Kit

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