RegToy is a useful program that is used to Tweak Windows XP. It also includes some utilities like a renamer to change the filenames and a wallpaper changer. With RegToy you can optimize the performance of your computer and customize your system to suit your needs.

NOTE : The original language of this program is Vietnamese , you can select English after run application.
This program only includes hidden settings, so you will not see many basic settings, you can find them in Control Panel -> System Properties, Display Properties, Folder Options, Taskbar and Start Menu Properties...