Professional Windows PowerShell Programming: Snap-ins, Cmdlets, Hosts and Providers

Providing you with the programmer's approach to understanding Windows
PowerShell, this book introduces the concepts, components, and
development techniques for building software packages that leverage the
power of PowerShell. The author team of PowerShell experts shows you how
PowerShell makes writing code easy by providing a runtime engine with
its own parser, plus you?ll discover that with PowerShell, all of the
.NET Framework objects become accessible via scripting, making
PowerShell a very powerful addition to your toolbox and a popular choice
for future development.