How to Unload DLL's to regain memory in Windows XP?

This registry change tells the operating system to unload DLL(dynamic link library) files every time a program is closed, most of the time whenever a program is closed the DLL's hang around in your memory in case the program is loaded again. The advantage to using this tweak is that you regain precious system memory whenever a program is closed. Included with this tutorial I added a registry file that you can simply import into your registry that would make those changes for you. Below you will find the steps necessary to accomplish this. As always comments/suggestions are welcome.
Note: Recommend this tweak for people that have below 512MB of memory or if you are a developer and would always like to have DLL unloaded when you're testing software. At higher memory levels 1GB plus, RAM is really not an issue if you're just doing basic computing (i.e. no memory intensive applications).

Follow these steps if you already have the key in your registry (to find out if you have the key follow steps 1-3 below) <<<<<> Run when the Run box opens type in regedit

3. Your registry should have opened [Just checking...have you backed up your registry?] Navigate to the following keys; HKEY_LOCAL_MACHINE > Software > Microsoft > Windows > CurrentVersion > Explorer > AlwaysUnloadDLL

4. When you get to AlwaysUnloadDLL click on it, the pane to the right should have only one key, double-click on;

>(Default), change it to '1' (changing this enables the setting)

5. Click OK and restart your computer

Follow these steps if you do not have the key<<<<<<<<<<<<<<> Software > Microsoft > Windows > CurrentVersion > Explorer

8. When you get to Explorer right-click on it and select New > Key, name that key AlwaysUnloadDLL and set the value to 1

9. Click OK and restart your computer