Cant' send texture from Processing to TD via SPOUT

Hello, I am trying the Spout connection from Processing to TD, but it doesn’t work.
SpoutReceiver.exe and SpoutSender.exe demos works correctly with the examples in Processing.
But when I select the Processing (or the SpoutSender) source in the TD Comp I get the red cross icon and “Unable to open shared spout” error message.
Any suggestion? Any working (and tested) configuration/setting?

Actually, after few tests, TD can’t receive from any sender…
(but other programs work, and “talk” to each other correctly)

Are the other apps active senders? Did you check to make sure your spout stream is named correctly?