Microsoft .NET Framework is the programming model of the .NET environment for building, deploying, and running Web-based applications, smart client applications, and XML Web services.
It manages much of the plumbing, enabling developers to focus on writing the business logic code for their applications.
The .NET Framework includes the common language runtime and class libraries.
The primary focus of Microsoft .NET Framework 1.1 Service Pack 1 (SP1) is improved security.
In addition, the service pack includes roll-ups of all reported customer issues found after the release of the Microsoft .NET Framework 1.1.
Of particular note, SP1 provides better support for consuming WSDL documents, Data Execution prevention and protection from security issues such as buffer overruns.
SP1 also provides support for Windows XP Service Pack 2 to provide a safer, more reliable experience for customers using Windows XP.
