Also worth noting that PowerShell is completely independent from Windows now. Not only can you install it in almost every other platform, since it's .NET you can embed the runtime in any .NET application. It's incredibly powerful.
Not sure what you mean? I've hosted powershell in C# code by referencing Microsoft.Powershell.Sdk - it pulls in the dll at compile time and runs on whatever .Net runtime that is installed and matches the project target.
