From YourWare Solutions:
FreeRAM XP Lite is a freeware application that will defragment and free up your system's RAM (Random Access Memory). As a result, system performance, response time, and stability will increase. Due to FreeRAM XP Lite's relatively small footprint, it is fast and efficient and will not consume valuable system resources. It also uses a very fast memory allocation algorithm, allowing it to work quickly with less intrusion on your productivity. Other features include fast, threaded freeing with Stop option; an AutoFree option for optimum performance and ease of use; real-time memory information; and system tray support.
This version is more efficient and uses less memory than before.