PC Optimizer is the easiest and most comprehensive way to keep your PC run smooth and error free. It works with all version of Windows - 95,98,Me, NT4,2000,and XP. Fix PC problems and prevent them from happening again. Comes with 1.PRIVACY PROTECOR 2.System Cleaner and Optimizer 3.System Files backup and Restore 4.Registry Cleaner and Optimizer 5.Registry Defragger and Optimizer