Any Windows 98 SE CD will do as long as your friend has the legal license and product key for the OS. In addition, you can sometimes "Browse" and direct the "CD Request" window to look at the C\Windows\Cabs folder on the Windows 98 computer.. The CABs folder will frequently allow the installation to continue because all the Win98 files are there.
If that doesn't work and the updated driver doesn't help, there are a couple of other things I would do as long as you have a copy of the updated driver installer. First, I would access Device Manager in Safe Mode, then uninstall the sound device from Device Manager. (If there are any duplicates of the sound device, remove them as well.) Now turn off the computer and unplug it, then take the cover off the computer and reseat the PCI sound card..Once that's done, plug the computer in and restart the computer.
Windows 98 should recognize the sound card, (if it's working properly) and install the default drivers for it. Once that's done, then install the updated drivers again.
If you've done all of the above and it's still not recognizing the card correctly, then you may need to get a new card.
Hope this helps.
He has Compaq Presario with Windows 98 2nd Edition - one day no sound. In Device Manager, Sound is ESS Allegro PCI Audio WDM and the device is not working. It says NTKERN.VXD, MMDEVLDR.VXD device loader for this device could not load the device driver. We tried to update the driver and got as far as asking us to put in the Win 98 CD which did not come with the computer. That was as far as we could go.
Any suggestions, please?