Int 2F/AX=FE00h/BX=4454h

AX = FE00h
BX = 4454h ("DT")
CX = 4B52h ("KR")
DX = 544Dh ("TM")

Return:
AL = FFh if installed
BX = 5254h ("RT")
CX = 4D44h ("MD")
DX = 544Bh ("TK")

Note: DV/X 1.10 DVPCNFS.DVR searches AH=FEh,FFh,C0h-FDh for a valid response

See Also: AX=FE08h

Category: Network - Int 2Fh - P