[Zope] Error Messages?

Hi! I've got two questions: -) How do I customize the Zope error message? -) Can I have custom error messages in Subfolders? Andreas -- Win95: n., A huge annoying boot virus that causes random spontaneous system crashes, usually just before saving a massive project. Easily cured by UNIX. See also MS-DOS, IBM-DOS, DR-DOS, Win 3.x, Win98.