Every part of the core VBScript specification (plus the Dictionary and FileSystemObject objects that make up the Microsoft Scripting Runtime) is described in an alphabetized entry. For each statement, function, operator, and objects, this book gives a brief description of syntax elements, the brief rule of proper use, information about the return value (if any), and some examples of the language element used correctly in practice. Two additional sections on each language element will be useful for beginners and anyone confused by the error: a "Rules at a Glance" section that documents correct usage, and a section called "Programming Tips & Gotchas" that highlights common mistakes.