PowerShell Community Extensions (PSCX) base module which implements a general purpose set of Cmdlets.

A PowerShell module for working with non-public types and instances. Ideal for live debugging of complex .net applications, or even introspection against powershell itself. Think open brain surgery for .NET.

The Strong Naming Toolkit: A set of PowerShell Cmdlets to facilitate signing of unsigned 3rd party assemblies with a key of your choice, to allow them to be referenced by strongly named projects.