When it comes to Thin Client computing there are several questions that typically come up.  The big one is usually “What about video performance?”.   Video performance was typically subpar or “choppy”, how choppy usually depending on what protocol (ICA or RDP) you were using.  WYSE responded with it TCX Multimedia Redirection software which significantly improved video performance by redirecting the processing associated with certain video files to the local client.

Now with the advent of more and more flash content in web pages and web apps, “What about flash video performance?” is becoming a much bigger concern.  Yet again WYSE is answering the call with its new TCX Flash Redirection software (still in BETA).  Whereas TCX Multimedia redirects video files to the local client, TCX Flash redirects flash video.  Now your end users can watch YouTube videos all day at work with minimal irritation and stop calling the help desk to complain.

Source: http://calfo.wordpress.com/2009/06/26/wyse-tcx-flash-redirection/