How to solve the QQ message under Win7 system is the problem that PPS cool dog player sound becomes smaller

When you first started using Win7, you may have encountered it. When you watch a movie or listen to music, if QQ or MSN comes to the news, the volume of the movie or music will suddenly become smaller, the QQ sound is particularly prominent, and the sound cannot be restored afterwards. Come over and adjust the volume yourself. In fact, this is a new feature design of win7, the intention is to avoid users being too immersed in music or movies and ignoring other information. This more user-friendly design is mixed, we can set this function off. There are three ways to set it up. You can choose one of them:
1. Right click on the tray speaker icon in the lower right corner of the system ----- Sound-----Click ""Communication> Label----- -- Set to “ When Windows detects communication activity, select “Do not perform any operation“. ----Set a good point OK.
2, another way can also open the settings from the desktop.
Right-click on the computer desktop ------ personalization ----- click on the lower left corner of the sound & rdquo;-------- then come out a window ------ point in the upper right corner "Communication"--------When Windows detects communication activity, "does not perform any operations". ----Set a good point OK.
3, you can also open the settings from the control panel.
Click on the bottom left corner of the computer ------- Control Panel -------- Sound -------- Communication ------ Choose not to perform any operation. ----Set a good point OK.