XPS15 502 waves maxxaudio3 launch tactile botton not working

Hi,

I'm running my Dell XPS in Windows 7, and since I purchased it a year and a half ago I was used to the button that let my configure my audio outputs.
Recently I upgrade my Realtek software, and now I can't find either my Waves maxxaudio default software or a way to make that tactile botton to work.

--Can anyone help me re configure or something so that I could use the button and the software?

Thanks a lot!