"Monad" Shell Beta 3
Microsoft released today the Beta 3 of Microsoft Shell, also known as Monad or MSH, Microsoft’s next-generation command-line and scripting environment. This version is available for the x86 and x64 architectures and requires the corresponding installation of the Microsoft .NET Framework Version 2.0 (x86, x64). Monad will ship as a feature of Exchange 12 in 2H06 (target) and in Windows after that.
Here are some links about the subject: