How do you install the software for your sound card?

Installing a software for any type of HARDWARE is called as a DRIVER. U need to find out the driver program for your Hardware and install it and then install a hardware that u want to be recognized by an Operating System that your machine uses. U can download the driver program on your hard-drive and double click it to install. Then simply reboot your machine (ofcourse after installing the hardware). The OS is your machine will recognize the type of Hardware that you have installed, and then you can configure or USE that hardware ... in your case Sound Card .... :)