Just wanted to point folks to a fix I just found helpful: Thanks to http://blog.tfanshteyn.com/2008/01/fixing-wcfwpf-vs-2005-extensions.html Basically, once you've installed VS2008 or .NET 3.0 SP1, the registry key saying that .NET 3.0 has been installed...
I've seen people blogging on the application blocks before, but I ran across a few people this weekend that had never even heard of them, so I thought I'd create a short list of available application blocks. These are all written or approved by Microsoft...