RAMBooster is a free utility that optimizes how your computer uses
its RAM, working to keep as much free as possible. Much like FreeRAM
XP Pro, it can also try and free up a specified amount if you
have a program that needs more free RAM than you have available.
It’s a simple-to-use program, and seems to do a good job of managing the RAM to keep more available. The author does not provide any support beyond the rather meager help file that comes with the program, though, so you’re on your own if you have problems.
–Richard Baguley