Int 5B Fn 8485 U - Sitback V3.02r - Get Dta [U] AX = 8485h DL = 79hReturn: CX = 5342h if supported ES:BX -> DTA set by last INT 21/AH=1AhNote: this function is provided by SBOS.EXE rather than SB.EXESee Also: INT 21/AH=1Ah