The tool works by emptying the Working Sets, and therefore claims back unused Memory/RAM. As an additional benefit, MemFree will help reduce the memory usage of programs with memory leaks such as FireFox.
It is important to note that MemFree is 100% safe, and will not reduce your system performance in any way at all.
To use MemFree, simply open the file and watch your Memory Usage go down. After 10 seconds or so, MemFree will finish cleaning Memory and will then pause for 5 minutes
RELATED TOPICSWorking Sets