By clicking on the link he was taken to the download page of the player, which repeats many times over that the offered player is free. But only at the bottom of the page the disclosure statement reveals that the software is bundled with additional products that "may include advertisement."
This particular piece of adware/spyware seems to install a toolbar along with the player, opens a number of ports in the system, attempts to connect with remote servers and request a number of URLs from them.
But the point that Sobrier wants to make is that users should always be careful of what they download - even from trusted third-parties such as Google.
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