Dell, IDT, Stereo mix... as you have found out it's not there :( it's going to take some hunting to find one.
I had this problem and eventually found the one mentioned on Dell forum and it works for me, but I have XP not W7
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?