Have just got the link to download the full package of .NET Framework 3.5. This is a 197 MB standalone executable file that contains all the components that are required to deploy to 32-bit and 64-bit platforms on all supporting operating systems. (The .NET Framework 3.5 supports IA64 only on Microsoft Windows Server 2008.) This executable does not contain language packs. The .NET Framework version 3.5 language packs are available as separate per-language stand-alone executable files.
.NET Framework 3.5 builds incrementally on the new features added in .NET Framework 3.0. For example, feature sets in Windows Workflow Foundation (WF), Windows Communication Foundation (WCF), Windows Presentation Foundation (WPF) and Windows CardSpace. In addition, .NET Framework 3.5 contains a number of new features in several technology areas which have been added as new assemblies to avoid breaking changes.
They include the following:
~ Deep integration of Language Integrated Query (LINQ) and data awareness. This new feature will let you write code written in LINQ-enabled languages to filter, enumerate, and create projections of several types of SQL data, collections, XML, and DataSets by using the same syntax.
~ ASP.NET AJAX lets you create more efficient, more interactive, and highly-personalized Web experiences that work across all the most popular browsers.
~ New Web protocol support for building WCF services including AJAX, JSON, REST, POX, RSS, ATOM, and several new WS-* standards.
~ Full tooling support in Visual Studio 2008 for WF, WCF, and WPF, including the new workflow-enabled services technology.
~ New classes in .NET Framework 3.5 base class library (BCL) that address many common customer requests.
===== For more information =====
~ .NET Framework 3.5 full package
~ Microsoft .NET Framework 3.5 readme
===== Other posts that points here =====
~ Microsoft .NET Framework 3.0: Pacote de Idiomas x86 (KB928416) (Resolvido)