I love the Topic.
Earth, Wind, Fire, Heart! By your powers combined, its... Acejay?
Anyways, On topic; You can buy more, Or you could go into your program files, and see if theres anything to delete there.
Oftentimes, people install stuff in weird locations that they never check again, so you might wanna look in "add/remove programs" as well.
Which is located in the control pannel (On windows XP)