Web Services Enhancements (WSE) 3.0 for Microsoft .NET

Where does one get the Microsoft.Web.Services3 and Microsoft.Web.Services3 and Microsoft.Web.Services3.Security.Tokens namespaces? Well, this suggests that one may have at Microsoft.Web.Services3.dll here which is what is what is also suggested to be missing. When I ran the .msi I ended up getting the file installed to: C:\Program Files (x86)\Microsoft WSE\v3.0\Microsoft.Web.Services3.dll