How to Clear Ram Cache in Windows XP - Tips and Tricks
This is a nice and simple tip and trick, how to clear RAM on a Windows XP system that will release the idle processes which cause your system to run slowly, and doesn’t require a typical system reboot.
Steps to follow:
1. Locate an empty spot on your desktop, right click on your mouse and select - new shortcut.
2. Type “%windir%\system32\rundll32.exe advapi32.dll,ProcessIdleTasks” without the brackets in the box and click next.
3. Name your shortcut “XP Clear RAM,” and click finish…. All done!…
Now, when your system slows down just click the XP clear ram shortcut, and you are back to your normal operating speed.
Source : madmouseblog