Remember 15 years ago with DOS on you ...
DOS 6.22 Memory Files: Himem.sys and Emm386.exe
You need to write them in the config.sys file specifying the path to them.
Example: DEVICE = C: \ DOS \ HIMEM.SYS, DEVICE = C: \ DOS \ EMM386.EXE NOEMS
The value of NOEMS or 1024, 2048, etc. is for adjusting the memory. You can add HIGH to get DEVICEHIGH
Only for each Windows go their files.
Run or write "smartdrv.exe" in autoexec.bat. This will speed up DOS
Previously, games were launched individually and constantly it was necessary to decrease or increase the Dosovo memory.
If there are problems with sound then in autoexec.bat you can write: SET BLASTER = A220 I5 D1