Welcome to another edition of Expert to Expert. Once again the venerable language master Erik Meijer leads the conversation. This time, we're lucky enough to have PowerShell creator and Partner Architect Jeffrey Snover. Jeffrey is really passionate about PowerShell and has worked hard to see that his .NET shell scripting technology ships in Windows 7 (it is on by default in Windows 7 and is used by administration components of the new OS). Erik is a big fan of PowerShell (especially since the code name of PowerShell was "Monad") so we figured it would be useful to have Erik dig into the nitty gritty of PowerShell with Jeffrey and determine exactly what PowerShell is, how it's designed (and why), how it's used primarily (and secondarily) and finally how it will evolve. PowerShell is much more than a Windows-based shell scripting language and engine. But what, exactly, does this statement mean? Tune in. This is yet another great conversation between two stalwarts of the programming industry. Enjoy!