Try windows 95 .vxd drivers, they should work fine with music in DOS prompt. In Windows 98 you sometimes get built-in wdm drivers that do not deliver legacy audio support.

dos isn't initialising any other hardware than what is needed, so unisound is setting the irq at 5 for the sound card. this setting isn't permanent, it's just the TSR in dos making it up as it starts. which is absolutely normal.

the motherboard's resources show you irq 9 because win95 and win98 are both plug-n-play OS, and are assigning the resources. even though you chose "manual" in bios, i dont really trust that the OS listens to the motherboard. its more like the motherboard listens to the OS.

i think it's likely that either your USB controller is being assigned irq 5 or 7 in windows. check devices in system (right click my computer > properties > system > devices) to confirm.

if this is the case, go back into bios and disable your usb controller (i think it's onboard as it's intel).
once usb is disabled, go back into win95 and win98, going into devices again, and manually changing your ess to irq 5 in both operating systems.
once that is set, go back into bios, re-enable your USB controller. windows will then assign an IRQ after 5 (7,9,11...)

manually managing sound cards while windows automatically re-manages the resources for other hardware can be a pain. i went through this recently with an orpheus sound card and a network card that kept getting irq 5 and the sound card constantly getting irq 11 before i realised that it was the newly installed network card. windows just simply doesn't know that the sound card -needs- to be either irq 5 or 7 for most games to work properly.

foil_fresh wrote on 2022-04-14, 03:58:

dos isn't initialising any other hardware than what is needed, so unisound is setting the irq at 5 for the sound card. this sett […]
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dos isn't initialising any other hardware than what is needed, so unisound is setting the irq at 5 for the sound card. this setting isn't permanent, it's just the TSR in dos making it up as it starts. which is absolutely normal.

the motherboard's resources show you irq 9 because win95 and win98 are both plug-n-play OS, and are assigning the resources. even though you chose "manual" in bios, i dont really trust that the OS listens to the motherboard. its more like the motherboard listens to the OS.

i think it's likely that either your USB controller is being assigned irq 5 or 7 in windows. check devices in system (right click my computer > properties > system > devices) to confirm.

if this is the case, go back into bios and disable your usb controller (i think it's onboard as it's intel).
once usb is disabled, go back into win95 and win98, going into devices again, and manually changing your ess to irq 5 in both operating systems.
once that is set, go back into bios, re-enable your USB controller. windows will then assign an IRQ after 5 (7,9,11...)

manually managing sound cards while windows automatically re-manages the resources for other hardware can be a pain. i went through this recently with an orpheus sound card and a network card that kept getting irq 5 and the sound card constantly getting irq 11 before i realised that it was the newly installed network card. windows just simply doesn't know that the sound card -needs- to be either irq 5 or 7 for most games to work properly.

Oh yes,Mainboard reported IRQ9, this might be the problem! In my experience it is a good idea to let the Mainboard assign resources instead of Win9X. I normally select in the Bios "Plug and Play OS" NO, and resources configured automatically.
I would also check if IRQ5/7 is not reserved for non-PnP ISA cards as most BIOS es offer such a setting. Checking or disabling resource-hungry USB controller is a good Idea as well for troubleshooting. Sometimes it will also help to change the ISA slot if there is more than 1.

Ok I played with the settings.
Sound card on WIN98 was on IRQ9
I changed the value to 5 but still no music in dos games.

Then I changed the whole table to "PNP/ISA Pnp" from Legacy ISA (PNP OS=NO)

And it recognized the sound card on IRQ5 when post instead of IRQ9

Still no music.
I switched to WIN95 and everything works fine there.
So I changed the WDM driver to WIN95 VXD driver and everything works!!

*Control Interface is still WDM driver, do I need to change that too? what does it do?

There are two ways to initialize sound cards:

Using PNP OS Installed = No and Yes

• No - BIOS assigns IRQ, DMA to devices. Your BIOS settings for IRQs/DMAs was wrong. You should be using Legacy ISA as few times as possible. In your case for DMA 1,3 and two IRQs you want.
• Yes - OS assigns IRQ, DMA to devices - in your case Windows or DOS. In this case sound card won't be listed during boot time or will be listed without IRQ/DMA. Normally Windows would assign IRQ/DMA for you and you can usually also choose from a few options in device driver dialog. It is also possible to do this from DOS by running sound card driver in autoexec.bat and telling it what IRQ/DMA to use.

You could have a DOS boot menu with menu item for Windows and DOS. In DOS mode you would run sound card driver to set the IRQ/DMA you want. In Windows you could achieve it via device driver dialog.