Follow the installation instructions in the readme (which is part of the zipped archive). I found this on IBM's website--apparently Aptiva's had the same integrated sound card hardware that my custom-built (in 1999) PC has. My PC had a Pentium II, SE440BX motherboard with integrated PCI sound. This turned out to be--thanks to DriverGuide's Tool Kit for giving me this info--a Crystal CS4610. Good luck.
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