Int 21 Fn 5F37  u - Named Pipes - DOScallnmpipe                            [N]

   AX = 5F37h
   DS:SI -> DosCallNmPipe stack frame (see below)

Return: CF clear if successful
       CX = bytes read
   CF set on error
       AX = error code

Note:  this function was introduced by LAN Manager but is also supported by
     the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
     Machines, and others

See Also: AX=5F36h,AX=5F38h

Format of DosCallNmPipe stack frame:
Offset Size    Description
 00h   DWORD   timeout
 04h   DWORD   -> bytes read WORD (not used!!)
 08h   WORD    out buffer length
 0Ah   DWORD   address of out buffer
 0Eh   WORD    in buffer length
 10h   DWORD   address of in buffer
 14h   DWORD   address of pipe name