Ram Optimizers Free ram utilities

I am trying to explain to my friend that by using these programs that it is not making his machine faster.. ( he has a Q6600 and 4GB of ram. he is insistent that he knows better. here is an excerpt from one of our conversations:
Me:
I am tellign you that the memory manager in vista/XP is much better than xp and those managers free ram that the os uses for other things.. and the os RELEASES ram when needed
Him
i know what i use and i know that it works for what i need it for or else i wouldn't use it. i'm more of a software speed person... and i don't know how to overclock

Me
you just don't get it.. you are taking the cache and flushing it.. which actually slows down your computer by having to read the data back to ram when needed... just to have free ram at the desktop. that is stupid.this has nothing to do with overclcocking

Him
when i flush it... even when i run a program it stays below what it was by alot

Please someone who knows the innards of the os explain to me in a way that will convince him he is wrong?

Oh i am full aware of overclocking.. ( look at my sig) and he is as well, (although he never has done it )however due to him having an off the shelf system, he doesn't have that luxury..

he has it in his mind that his computer is faster since he installed this free ram optimizer. and of course people in the know are ware that this is just the placebo effect..

he never gave vista a chance to learn how he uses his computer... and even put it down cuz he uses over 300 dif programs and how could vista ever learn to preload the apps that he will use.. and why does he want stuff in the ram that he wouldn't use...

I have also explained to him how vista's memory management works and frees ram that is needed for an app or game that is not in ram.

Thank you for your response... i will direct him to this thread so he can read this himself..