A powerful messaging and groupware system integrating email, scheduling, electronic forms, and document sharing. Exchange is an essential cog in Microsoft's array of NT-based applications for enterprise computing. Exchange 4.1 is the latest version, which contains several powerful new features. Based on field experiences from Microsoft certified consultants and developers, this book gives groupware developers and network administrators an expert's view of Exchange. The authors strategically place sidebars, tips, and warnings throughout the book to help readers grasp Exchange, as well as to identify the common pitfalls and correct them.