KB957055

On a Windows Vista SP1-based computer or on a Windows Server 2008-based computer, you visit a Web page by using Internet Explorer 8 Beta. When you try to play a video in this Web page by using embedded RealNetworks RealPlayer 11, you receive the following message even though RealPlayer has been installed successfully on the computer:

In order to play this video, you need the current version of RealPlayer.
Please click below to download the free RealPlayer.

Note: This problem does not occur if the computer is running the release-to-market (RTM) version of Windows Vista.

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