INT 21 - Named Pipes - LOCAL DosQNmPHandState AX = 5F33h BX = handle Return: CF clear if successful AH = pipe mode bit mask (see #01702) AL = maximum number of instances 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 SeeAlso: AX=5F32h,AX=5F34h