I really like Ulead's PhotoImpact XL with its huge array of (usually) easily accessible features. What I don't like, though, is that you can't run it as a normal user under Windows XP. You need administrator rights, which I'd rather not give myself.
But third party applications are not the only to display such anachronistic idiosyncrasies. Windows XP itself does not allow you to set the preferred email client per user. Or does it?
DefaultMail lets every Windows XP user choose their own default email program. (Windows)