Using different sound files for certain effects

[Eommus]

Hi,

Some years ago, the following was working, but it seems to no more:

To disable the sound effects that you hear when you select or deselect an NPC, I used to put two empty sound files like this

C:\World of Warcraft\_retail_\Sound\Interface\ideselecttarget.ogg
C:\World of Warcraft\_retail_\Sound\Interface\iselecttarget.ogg

But it's not working now, I still hear the select/deselect sound effects. Any ideas how to achieve what I want?

Thanks!