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#21
I understand that RAM is to be used. It's needed and it's good when it is being used. Though, when you're trying to run a program and can't because the OS is using all of the small amount you may have it's a way to get some back. Personally, I say go buy more RAM if you are having problems, but if you want a quick fix until that oh-so-loved tax return, the RAM compressor I mentioned is nice, or other methods.
The Game Booster I linked to doesn't actually free up RAM, but closes programs that run in the background that you may want to stop. It has a list, but also gives you some choices of programs running like Java. Things not needed to run intensive games. Other than my personal points, I agree with Mike, RAM being used is good. Otherwise why would you pay for it?