Based on tshdos' comments, you'd definitely want to look into event driven actions and asynchronous sockets. Didn't know VB had a poor support for multi-threading. But I guess that you can use the WinAPI to make your own thread wrapper, check MSDN library how to use the thread calls.

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Okay, so I've been gone a while - but hey, meanwhile online translators have gotten better:

Ce n'est pas ma faute. Blâmer vous-même.

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Ne me blâmez pas. Blâment votre individu.