Is DPS version 126.96.36.199 not opening at all for you, or is this a “No sound” issue?
If you have no sound, please go to System Preferences -> Security and Privacy and click “Privacy”. On the left side, please select Microphone and confirm that the checkbox next to Bongiovi DPS is checked.
As far as removing DPS from your system, you can use the uninstaller program found in the Applications -> Bongiovi DPS folder to uninstall DPS from your computer.
Please feel free to open a support ticket if you wish. I look forward to your response.