The Interval property specifies the interval, in
milliseconds, at which the connection is monitored by the control.
The minimum value of 0 indicates that the control should not
monitor the connection.The maximum interval value is 65536
milliseconds, which is slightly more than one minute. The default
value is 1000, which causes the control to check the connection
status every second.
Note that setting the property value to zero will prevent the
control from detecting certain conditions, such as a disconnected
telephone line or a modem that is turned off.