destructor Destroy; override;

Destroy is the destructor for the TIdCustomTCPServer instance. 

Destroy sets the Active property to False, which forces the server to terminate the listener threads and the executable tasks for client connections to the server. 

Destroy frees resources allocated to the IOHandler property when ImplicitIOHandler contains True. 

Destroy frees any Bindings allocated for listener threads in the server. 

Destroy frees any entries in Contexts allocated to executable tasks for client connections to the server. 

Destroy calls the inherited Destroy method.