Login probs with Windows XP Home

Hi all,
I currently use my laptop for my business as a web author. It is an AMD 1600 with 348Mb Ram running Windows XP Home.
One of the problems I have is that I have configured it so that my family have seperate logins and desktops. My own login is fine, but all other logins have the ‘System32’ folder open when the log-in. Occasional message appears “Cannot open ESB.ini system tray!”

Can anyone explain how this has happened and how to cure it?

Is there a way of stopping other users from opening files, applications or folders on XP Home?

Yours Dean…