Wise Memory Optimizer keeps on its improvements, and the newly released notes are as follows:

Changes:

• Improved memory optimization during CPU idle time.
• Enabled theme customization feature.
• Newly added Persian,Greek and Bulgarian language packs.
• Other minor improvements.

You can learn more about it from: http://wisecleaner.com/wisememoryoptimizerfree.html
And you can download it for free from: http://download.cnet.com/Wise-Memory-Optimizer/3000-2086_4-75786613.html?part=dl-&subj=dl&tag=button"