Probaj da staviš u config.sys:
device=C:\WINDOWS\COMMAND\display.sys con=(ega,,1)
Country=381,852,C:\WINDOWS\COMMAND\country.sys
a u autoexec.bat:
mode con codepage prepare=((852) C:\WINDOWS\COMMAND\ega.cpi)
mode con codepage select=852
keyb yu,,C:\WINDOWS\COMMAND\keybrd2.sys
Ovo važi za Win 9x OS-ove, u XP-u ili Win 2000 samo podesi u Regional Settings zemlju koju hoćeš (Serbian, Croatian, Slovenian).