Markus Mueller wrote:

> I missed to tell that my sentence is only valid if you do
> "TWSocket.Flush;".
> And there I am true that V6 ICS directly runs "send" on Winsock to
> immediatlely
> send the data. And that was the point: It not buffers internaly but
> forces to send
> it immediately to winsock or it blocks.

To be sent data is always put into TWSocket's internal send buffer first.
Flush simply calls TryToSend and MessagePump in a loop until TWSocket's
internal send buffer is empty.

Arno Garrels
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