Mark Russinovich wrote a great article about how memory optimizers are hoaxes:
The home page uses technobabble to sound authoritative, but it seems to do exactly what all these hoax optimizers do, force active and inactive RAM page out of memory. The kernel is tuned to handle this most efficiently, applications like this just disrupt the memory manager's work.
Until the author provides proper technical information of how he is doing something innovative here instead of the technobabble of his homepage, this is snake oil and hoax, just as with Windows "memory managers". iFreeRam, another hoax app used to have "benchmarks" on his page showing how it really helped, his benchmarks were artificial and he eventually removed them as they were worthless.
 Get a free reprint of his article via this: http://license.icopyright.net/user/serviceGroup.act?gid=2&inprocess=t&tag=3.7009%3Ficx_id%3D41095&urs=WEBPAGE&urt=http%3A%2F%2Fwindowsitpro.com%2Farticle%2Farticleid%2F41095%2Fthe-memory-optimization-hoax.html
 If you want to buy snake oil, iFreeMem is cheaper than this and does the same thing.