A new version of the WPF Performance Profiling tools has been posted, x86 and x64, as an .msi. These tools were previously only available in the beta .NET Framework 3.5 SDK, but that is a rather hefty dowload at over 1 gig.  Now, you can get at these invaluable tools as a simple download which is less than 1mg.  If you are a WPF developer and aren't using these tools, download immediately!  If you are using the existing wpfperf.exe tools, the recommendation is to move to the new version of the tools. Happy profiling -- and watch out for those bitmap effects!