Delete unused programs in Windows XP

How to delete unused programs in Windows XP? Some unused programs from windows xp not see in Add or Remove Pogram in Control Panel.

Go to start >setting>control panal>folder option

Select tab view and select show hidden files

Go to start>run

Type inf and press enter

Find sysoc.inf and double click

Find programs you want to delete in nodepad and delete wording hide

Save it

Go to Add Remove Programs and delete programs you want to take out.