Win7 QQ or MSN to message when the player's voice becomes smaller?

Use Windows7 users find such a problem, when watching movies or listening to music, if QQ or MSN to News, the volume of the film or music will suddenly become smaller, making the QQ hint tone is particularly harsh.

In fact, this is a new feature design for Windows7, which is designed to prevent users from being too immersed in music or movies and ignoring other information. Users of this more user-friendly design is mixed, if not necessary, we can set up this function to remove.

Set the method as follows:

Right-click the horn icon on the system tray, pop-up menu, select Sound (sound), open the Sounds window, switch to the Communications tab (Communications), open the Drop-down box, and set "when Windows detects communication activity" to "do nothing."

This is the successful removal of this feature, after the QQ message will not affect the sound of the player.