The Microsoft .NET Framework version 3.0 redistributable package has been released! It combines .NET Framework version 2.0, Windows Presentation Foundation (WPF), Windows Communication Foundation (WCF), Windows Workflow Foundation (WWF), and Windows CardSpace. For those who are already working with .NET Framework version 2.0, only the new Windows Vista components are installed.
For those who have installed any pre-release versions of .NET Framework 3.0 (Beta 2, RC1, CTP), you will need to uninstall these versions using Add/Remove Program in Control Panel, before installing this final release version.
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– Microsoft .NET Framework 3.0 Redistributable Package