办法1:直接换vs2008或2010
办法2:装Visual Studio 2005 extensions for .NET Framework 3.0 (Windows Workflow Foundation) 和 Frameword3.0
Visual Studio 2005 extensions for .NET Framework 3.0 (Windows Workflow Foundation)下载地址:
http://www.microsoft.com/downloads/details.aspx?familyid=5D61409E-1FA3-48CF-8023-E8F38E709BA6&displaylang=zh-cn
vs2005出来的时候wpf还没出生呢,
装vs2008或2010吧,
vs2005不支持WPF。WPF是.net3.0的功能。vs2008以后才支持WPF.net3.0。