audio card output for Video Studio X6

[samsara]

Many music software programs allow you to choose the audio output you wish to use for that program. Even windows media player has that function. However, I've been told, after searching the function, that Video Studio has no such option. I'm running my built-in soundcard at the moment but would like to switch over to my delta44 sound output that runs my hard disk recording playback. Is my only option here to disable the built-in soundcard - Realtec? Will this automatically channel Video Studio sound out my desired output - the delta44? Or, is there a way of switching Video Studio to my delta system without disabling the build-in card? I keep the card active under the assumption that any audio coming from the internet will require the soundcard. Again, if I disable this card, will internet sound transfer automatically to my delta44? Whew eh?