Microsoft .NET Framework 1.1 provides the programming model for building, deploying, and running interoperable Web-based applications, smart client applications, and XML Web services. The .NET Framework manages the difficult details of interoperability to enable developers to focus on writing the business logic code for cross-platform applications. The Microsoft .NET Framework 1.1 Class Library System namespace contains fundamental classes and base classes that define commonly used value and reference data types, events and event handlers, interfaces, attributes, and processing exceptions. Other Microsoft .NET classes provide services that support data type conversion, method parameter manipulation, mathematics, remote and local program invocation, application environment management, and supervision of managed and unmanaged applications. This four-volume set contains complete details about the .NET Framework Class Library System namespace.