Int 61 Fn 19 - Pc/tcp Kernel V2.05+ - "net_abort" - Reset A Network Conn [N]
AH = 19h
BX = network descriptor
Return: CF clear if successful
CF set on error
AX = error code (see #2990 at INT 61"FTP Software")
Desc: immediately destroys the specified connection
Note: send a TCP "RST" command if a stream connection is open
See Also: INT 61"FTP Software",INT 61/AH=00h"PC/TCP",INT 61/AH=24h