Category: DOS extenders
INT 21 - OS/286, OS/386 - ISSUE REAL PROCEDURE CALL AH = E1h ??? Return: ??? Note: protected mode only??? SeeAlso: AH=E0h"OS/286",AH=E2h"OS/286",AH=E3h"OS/286",AX=250Eh,INT 31/AX=0301h