Format of MS-DOS/PC-DOS/OS2/WinNT/PTS-DOS COUNTRY.SYS country-subfunc header: Offset Size Description ) 00h WORD number of subfunction entries following 02h N subfunction entries Offset Size Description 00h WORD length of subfunction entry, not counting this word (usually 06h) 02h WORD subfunction ID (value passed to INT 21/AH=65h in AL) 04h DWORD offset within file of subfunction data entry (see #02622) SeeAlso: #02620