Int 61 Fn 0003  - Banyan Vines - Async Terminal Emulation - Interrupt On   [N]

   AX = 0003h subfn 14h
   DS:BX -> argument block (see #3069)

Return: AX = status (see #3040)

See Also: AX=0003h/SF=0Eh

Format of VINES argument block:
Offset Size    Description (Table 3069)
 00h   BYTE    session ID (00h)
 01h   BYTE    14h (function "interrupt on message from host")
 02h   DWORD   pointer to routine to be called (0000h:0000h = don't call)
 06h   DWORD   stack pointer to use when call is made