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I've been using Firefox on Vista Business for about a day now but I noticed that if there is a website that displays a movie with the Windows Media Player plugin, they won't play. I looked at the plugins under Firefox and it doesn't show it there. Does anyone know if this is a Firefox problem or is this a Vista problem?

You need to copy three files (npwmsdrm.dll, npdrmv2.dll and npdsplay.dll) to the "C:\Program Files\Mozilla Firefox\plugins" directory.

This link has the files and more info

Windows Media Player Plugin files

Thank you. That worked perfectly. I was having this problem on Vista too.

  • 1 year later...
Use the port25 plug-in for WMP (all versions of WMP11, XP or Vista). The npdsplay.dll plug-in and that sort of thing are really old, if I recall correctly, and aren't really what you want.

indeed zach is correct

http://port25.technet.com/pages/windows-me...n-download.aspx

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