Int 14 Fn 00  - Connection Manager - Modify Default Connection Parameters  [N]

   AH = 00h
   DX = FFFFh
   ES:DI -> vector string specifying new parameters

Return: AH = return code (00h,03h) (see #0229)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
     serial ports over an IPX or NetBIOS-based network

Note:  if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
     function, but redirects the port over the network; if DX is any other
     value, the call is chained

See Also: AH=04h/DX=FFFFh,AH=08h/DX=FFFFh,AH=0Ah/DX=FFFFh

(Table 0229)
Values for Connection Manager return code:
 00h   successful
 01h   no such connection
 02h   invalid connection ID
 03h   invalid subvector found
 04h   communication error (check BH)
 06h   insufficient resources, retry later
 FFh   no data available