I want to clear up a few confusions I've seen recently on the internet. Diskeeper 2007 introduced on-the-fly defragmentation for the first time in the Diskeeper product line but, it should be stated, Diskeeper was not the first performance tool to do this. This "real time" defragmentation has been on our development plate for many years, but it lacked a technological advancement before we could add this into the product. As Diskeeper is one of the highest selling software utilities (usually 7th or 8th, by volume in North America, after Norton AV, Ghost, and antivirus from a couple of the other major vendors) we have a tremendous responsibility. We sell many millions of licenses each year, and a good number of them end up on mission critical servers in the world's largest companies. The product, as it evolved into a truly automatic program, had to ensure that the product offered all the benefits and none of the drawbacks an on-the-fly application might generate, on these massive server systems. The benefit of addressing the consideration of a high-powered SAN or application server also translates to the small business and home user, as they now get a technology designed for some of the most powerful Windows-based computers in use today. Kinda of like putting a turbocharged sports car engine in an economy car, but still getting the MPGs. Speaking of car analogies, it brings up another. The following is an article I wrote for the Diskeeper 2007 release, but it seems appropriate to re-publish here… [forewarning: this is a marketing article, not a technical one 🙂 ]