No need to purchase a Vista upgrade to get the benefits of the Vista's ReadyBoost technology. With the newly developed eBoostr, the booting of your OS and applications startup get much faster thanks to the smart caching mechanism. The eBoostr application allows you to use an additional drive (flash memory or hard disk) or free RAM as another layer of performance-boosting cache. eBoostr is an alternative to ReadyBoost and SuperFetch technologies available on all Windows versions. With the newly developed eBoostr.
eBoostr Version 3.0.1 build 498 features full Windows Vista and Windows 7 support, new application priority control to boost selected appseven more, and has several speed improvements.

Download eBoostr 3.0 full version
Download eBoostr vista 3.0