fix audio mixer – no sound

The plug and play software emulator had was missing.
Fixed by searching for machine.inf then copy to temp directory (or desktop). remove
at about line 20 ” ExcludeFromSelect=*

goto control panel, add new hardware, next (let it seach), yes hardware
is connected, next, scroll to bottom, add new hardware device, next,
install from list, next, select system devices, next, select have disk,
point to amended copy of machine.inf in temp directory (or desktop), scroll to “plug
and play software device emulator” in right hand column, next and
complete install.