UR824 outside Cubase

I use UR824 in cubase 8.5 and my audio-monitoring sytem needs ARC2 plug-in to work well .
After the correction , all is perfect .
But Outside cubase (ur824 is still my main soundcard) , I can’t use the IK Arc2 correction , and the sound is very bad ( for exemple in firefox or VLC / windows media players) .
Any tips are welcome