using System;
using System.Runtime.InteropServices;
using Microsoft.VisualStudio.Setup.Configuration;

class A {
  public static void Main(string[] args) {
    Console.WriteLine("Creating instance of SetupConfiguration");
    SetupConfiguration setup = new SetupConfiguration();
    Console.WriteLine("Created instance of SetupConfiguration");

    var a = setup.EnumAllInstances();
    ISetupInstance[] b = new ISetupInstance[1];
    while (true) {
      b[0] = null;
      a.Next(1, b, out _);
      if (b[0] == null)
        break;

      ISetupInstance2 c = (ISetupInstance2)b[0];
      Console.WriteLine("Instance - " + c.GetDisplayName());
      Console.WriteLine("\t GetDisplayName = " + c.GetDisplayName());
      Console.WriteLine("\t GetInstallationVersion = " + c.GetInstallationVersion());
      Console.WriteLine("\t GetInstallationPath = " + c.GetInstallationPath());
      Console.WriteLine("\t GetEnginePath = " + c.GetEnginePath());
    }
  }
}