As noted on LifeHacker... Featured Windows Download: TweakRAM Memory Optimizer Free Today Only

"Instead of dropping cash on a new stick of RAM for that old computer, go grab a free license for the normally $20 memory manager TweakRAM—today only. TweakRAM speeds up your machine by optimizing Windows memory management, and when your computer slows t

Please note that they have only 7 hours 36 minutes to download and install a copy of TweakRAM 6.2.