An MSDN article from 2007 compares the speed of WCF vs. .Net Remoting, and shows the speed increase WCF gives over remoting in an IPC scenario using named pipes as transport. With the introduction of the System.IO.MemoryMappedFiles namespace in .Net 4 and a blog post by Salva Patuel which outlines that almost all communication inside windows uses memory mapped files at it’s core, I had to try this myself with the new capabilities in the .Net 4 framework.
