well, this is a scam...there is no such thing as ram defrag, and this site is trying to use the term in a sentence, as if everyone should know about it...it doesn't exist...
these companys realize people already know ram optimzers ruin the performance of xp, so they came up with this neet trick to try to get more play on their product...ram defrag is marleting speek for ram optimizer...counter productive in this os
I wouldn't spend the effort on a download, and then worry about an over clock (which it looks like this program might actually try to perform), going awry