Smart Buster is an application with many tools to clean up your computer, shred files, etc. The "uninstaller" helps you to remove software that cannot be removed using Add/Remove section in Control Panel. Also, it can remove multiple programs simultaneously.

"Startup Manager" can be used to control the programs and services that are run automatically at the start of windows.

"Diskspace Manger" shows the hard disk space used by different folders and files.

"Duplicate File Buster" finds duplicate files and deletes them.

"Instant Shutdown" can shutdown Windows XP in just 2 seconds.

"Smart Shredder" can delete files so that no file recovery programs can recover them.

"Task Manager" is like the Windows Task Manager, but with additional capabilities like closing non Windows processes automatically, freeing up RAM, etc.

It can also find and delete junk files like cookies, browser cache, temp folders, junk files in root, etc.