Check the following on your card or motherboard:
Try letting Windows find the driver for you. Even for legacy hardware, the Microsoft Support database sometimes holds generic drivers. Right-click the button and select Device Manager . Expand the Sound, video and game controllers section. hsp56 sound card driver
She inserted the tiny CD from the box. Inside was a single file: HSP56_INF.TXT —and a readme saying, "See manufacturer website." The website was long dead. Check the following on your card or motherboard: