。Net 3。0 下载地址

RTM包括：

Windows Presentation Foundation
Windows Communication Foundation
Windows Workflow Foundation
Windows CardSpace

.NET 3 Runtime 下载：
Download the full x86 redistributable
http://go.microsoft.com/fwlink/?LinkId=70848
Download the full x64 redistributable
http://go.microsoft.com/fwlink/?LinkId=70849

Windows SDK For .NET Framework 3.0 下载：
http://www.microsoft.com/downloads/info.aspx?na=40&p=3&SrcDisplayLang=en&SrcCategoryId=&SrcFamilyId=10cc340b-f857-4a14-83f5-25634c3bf043&u=http%3a%2f%2fgo.microsoft.com%2ffwlink%2f%3fLinkId%3d74726

Microsoft Visual Studio 2005 Extensions for Windows WorkFlow Foundation 下载：
http://www.microsoft.com/downloads/info.aspx?na=40&p=4&SrcDisplayLang=en&SrcCategoryId=&SrcFamilyId=10cc340b-f857-4a14-83f5-25634c3bf043&u=http%3a%2f%2fgo.microsoft.com%2ffwlink%2f%3fLinkId%3d74727

WCF和WPF的VS2005扩展包还没有正式发布。