Microsoft .NET Framework 3.0 是一个新的Windows编程框架,它包含了.NET Framework version 2.0的所有技术,并融入了大量新技术,例如Windows Presentation Foundation, Windows Communication Foundation, Windows Workflow Foundation和Windows CardSpace..NET Framework 3.0将包含在最新的Windows Vista系统之内,早期版本的朋友们请下载安装这个最新的版本.

下载地址：
Microsoft .NET Framework 3.0 X86 Redist Package
http://download.microsoft.com/download/3/F/0/3F0A922C-F239-4B9B-9CB0-DF53621C57D9/dotnetfx3.exe

Microsoft .NET Framework 3.0 X64 Redist Package
http://download.microsoft.com/download/3/F/0/3F0A922C-F239-4B9B-9CB0-DF53621C57D9/dotnetfx3_x64.exe