What I believe both of these clients do is simply keep the movie your normal size, but resize the users resolution to the desired size. therefore making the game fullscreen. There is no speed boost in this, but also isnt any speed decrease.

If you want an example, I created a super quick player like this for marmottes game because people wanted full screen.

If you check the thread:
http://www.flashkit.com/board/showth...0&pagenumber=1

Check marmottes game first (kudos to him btw )
then read on the second page of my exe and try that.

You see basically how these clients work.

Nugget