INT 21 - DOS 3.1+ network, Banyan VINES, LANtastic - REDIRECT DEVICE
AX = 5F03h
BL = device type
03h printer
04h disk drive
CX = user data to save
0000h for LANtastic
DS:SI -> ASCIZ local device name (16 bytes max)
ES:DI -> ASCIZ network name + ASCIZ password (128 bytes max total)
Return: CF clear if successful
CF set on error
AX = error code (01h,03h,05h,08h,0Fh,12h) (see AH=59h)
Notes:  if device type is disk drive, DS:SI must point at either a null string
or a string consisting the drive letter followed by a colon; if a
null string, the network attempts to access the destination without
redirecting a local drive
calls INT 2F/AX=111Eh with AX on top of the stack
SeeAlso: AX=5F04h,INT 2F/AX=111Eh

See also: 215F02

215F03 - DOS 3.1+ network, Banyan VINES, LANtastic - REDIRECT DEVICE