Flash Player is the number one of Internet enabled PCs according a NPD Online survey published in December 2005.
Flash Player versions less than 5 are no longer measured. The sampling error for the NPD study is +/- 2% at the 95% confidence level.
The study measures Windows Media Player versions 7 and above using “.wmv” media files.
You can have more informations on the site of Macromedia
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