Audio Output Device Software For Windows 7 Free Download

I dont have sounds controllers and w/e else on my pc.another one said it was the fourth one from the bottom but I only have batteries, computer, disk drives, display adapters. DVD/CD-ROM drives, IDE ATA/ATAPI controllers, keyboards, mice and other pointing devices, monitores, network adapters, processors, storage controllers, system devices, and universal serial bus controllers.i really need help with this!!! I cant listen to my music or watch my dvd's.omg someone please help me.THANKS IN ADVANCE. After all these times I figured out how to do this O_o.

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