I never use those "easy installers" for drivers. They almost always cause problems. My suggestion would be to go under Device manager, find the "unknown audio device" then manually install the drivers. Typically the INF should be somewhere fairy easy to find, like under a folder Audio/Win2kXP or something like that...
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Desktop * Athlon X2 4200 | 2G RAM | 160G HD | 7600GT
Laptop1 * C2D T5550 | 3G RAM | 120G HD | Intel x3100
Laptop2 * C2D T5250 | 2G RAM | 160G HD | Intel x3100
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