After you install the 98 driver, an emulation driver will be generated in the windows\cwcdata directory. When you exit Windows to the MSDOS state, the content of the dosstart.bat file will be automatically executed:
SET BLASTER=A220 I5 D1 T4
C:\WINDOWS\CWCDATA\cwcdos.exe
In general, games will have sound. If some games have no sound, try adding the parameter /G.
Of course, this is a real DOS driver. You don't have to exit from Windows 98 to the DOS state to execute it every time. You can press F8 at startup, select 5 to enter DOS 7, and run dosstart in the Windows directory. The same applies to old versions of DOS. Press 7 to enter DOS 6, and the same operation. This driver has been verified to work normally in DOS because the sound card of one of my old IBM P3 laptops uses this.