How to terminate HTTP Thread after WebSocket upgrade

[hamstring]

I think that the reason for getting two threads created might be that the http connection and websocket context were not separated.
Remy supplied a change of code (addition) in the TWebSocketServer.Create constructor:

FWebSocketServer.OnWebSocketExecute := DoServerWebSocketExecute;

Whereas before I had been handling everything in the DoServerExecute procedure.

FWebSocketServer.OnWebSocketExecute := Self.DoServerExecute;

FWebSocketServer.OnExecute := DoServerExecute;
FWebSocketServer.OnConnect := DoServerConnect;
FWebSocketServer.OnDisconnect := DoServerDisconnect;

Now trying suggested code change:

Code:
constructor TMyWebSocketManager.Create;
begin
inherited Create(nil);
FWebSocketServer := TWebSocketServer.Create;

// Initialize the thread lock container
FSessionLock := TCriticalSection.Create;

// Initialize the dictionary container to hold your session memory references
FSessionMap := TDictionary<string, TMyClientSession>.Create;

FWebSocketServer.ContextClass := TMyClientContext;

FWebSocketServer.OnWebSocketExecute := DoServerWebSocketExecute;

FWebSocketServer.OnConnect := DoServerConnect;
FWebSocketServer.OnDisconnect := DoServerDisconnect;

FCommandQueue := TThreadedQueue<TWSCommand>.Create(1024, 0, 0);

LogAddMsg('Server created, waiting for activation');
end;

My question now is whether FWebSocketServer.OnExecute := DoServerExecute; is not required anymore or what should it be used for? What is the difference between FWebSocketServer.OnExecute and FWebSocketServer.OnWebSocketExecute ?