The default value is True.

Most hosts will want to echo all data back to the client. By setting this property to False at design time or before connecting, the control refuses this option when the AutoOption property is True. Setting this property after the initial option negotiation takes place may not affect the host in any way depending on the host's operating system. If you set this property to False, you may want to do a local echo (repeat all sent characters to the local screen for interactive applications).

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