Int 21 Fn 93 - European Ms-dos 4.0 - "pipe" - Create A New Pipe [D]
AH = 93h
CX = size in bytes
Return: CF clear if successful
AX = read handle
BX = write handle
CF set on error
AX = error code (08h) (see #1366 at AH=59h/BX=0000h)
Desc: create a communications channel which may be used for interprocess
data and command exchanges
See Also: AH=3Ch,AH=3Fh"DOS",AH=40h"DOS",AH=84h