This VBScript tutorial book is a collection of notes and code samples written by the author while he was learning VBScript (Visual Basic Scripting Edition) himself. Topics include: The Variant Data Type with Subtypes; Fixed-Size and Dynamic-Size Arrays; Function Arguments Passed by References and by Values; Raising and Catching Runtime Errors; Regular Expression and Pattern Match; Runtime DLL Library: Dictionary, File System, and File I/O; Defining Classes with Properties and Default Method; Object Initializing and Terminating Processes; Client-Side Scripting: VBScript Code for IE Browser; Server-Side Scripting: VBScript code for IIS Server; System Admin Scripting: Windows Script Host (WSH). Updated in 2024 (Version v6.03) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/VBScript.