Sat, July 28, 2007, 03:03 AM under 
dotNET | 
Orcas
  
    I noticed a new 
green assembly has been added to 
Beta 2 of .NET Framework 3.5: 
System.Windows.Presentation.dll.
Curiocity got me digging and it appears that it adds some infrastructure support in order for the 
Managed AddIn Framework (MAF) to work with WPF apps... FYI, 
also mentioned here.