Windows XP Tweaks - Tweak UI

This PowerToy gives you access to system settings that are not exposed in the Windows XP default user interface, including mouse settings, Explorer settings, taskbar settings, and more.

Download and install Tweak UI from here.

Here are a couple of tweaks that I like most:

Speed up menus



Classic search in Explorer



Document template - New menu



Command Prompt - Filename/directory completion