Microsoft .NET Framework 3.5

.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.

System Requirements

  • Supported Operating Systems: Windows Server 2003; Windows Vista; Windows XP
  • Processor: 400 MHz Pentium processor or equivalent (Minimum); 1GHz Pentium processor or equivalent (Recommended)
  • RAM:96 MB (Minimum); 256 MB (Recommended)
  • Hard Disk: Up to 500 MB of available space may be required
  • CD or DVD Drive: Not required
  • Display: 800 x 600, 256 colors (Minimum); 1024 x 768 high color, 32-bit (Recommended)

Download: Microsoft .NET Framework 3.5
Link: Home Page

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10 Comments

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3.0 is just 2.0 with some more crap tacked on. I liked how when they released 3.0 you had to go to WU and download patches for 2.0 because MS was too lazy to integrate them. The install takes forever on XP and installing patches for .NET take forever as well. Why is there a 3.0 a 3.5 and a service pack for both? Shouldn't 3.0 upgrade to 3.5 and then there just be a service pack for just 3.5? I can't stand how MS set this up.....

VRam said,
3.0 is just 2.0 with some more crap tacked on. I liked how when they released 3.0 you had to go to WU and download patches for 2.0 because MS was too lazy to integrate them. The install takes forever on XP and installing patches for .NET take forever as well. Why is there a 3.0 a 3.5 and a service pack for both? Shouldn't 3.0 upgrade to 3.5 and then there just be a service pack for just 3.5? I can't stand how MS set this up.....

Have you actaully tried to install 3.5 on its own? you do NOT need to install anything before it... if you install 3.5 it will install anything it needs on its own... you do not have to patch anything or install service packs for anything... 3.5 will automatically update v2 to sp1, install 3.0 sp1 and install 3.5... no work on your part at all besides running the 3.5 installer...

as for why there is a 2.0, 3.0 and 3.5 thats because they are not different versions but add on features

2.0 - is the core base .NET functionality
3.0 - is Vista based functionality (WCF, WPF, etc...)
3.5 - Is extended core functionality and new compilers to add on LINQ and a large host of other new features...

its actually a good system...

The installation takes about an 1+1/2 hour (90 mins)! (And that's on a C2D E6750 with a raptor and 2Gigs ddr2-800mhz) so it is SLOW

I don't know it took so long on your machine... it took about 5 minutes to install on my old computer (Sempron 2600+, 1GB DDR-400, 7200RPM PATA).

On XP I find the .net framework a pain to install
Why is there so many versions of it? Then after you install them there's security updates for them.