Detect Windows OS Version

Solutions:

using System;

      System.OperatingSystem os = Environment.OSVersion;

            Version vs = os.Version;

            if (os.Platform == PlatformID.Win32Windows)

      {    

                                         switch (vs.Minor)

                {

                    case 0:

                        operatingSystem = "95";

                        break;

                    case 10:

                        if (vs.Revision.ToString() == "2222A")

                            operatingSystem = "98SE";

                        else

                            operatingSystem = "98";

                        break;

                    case 90:

                        operatingSystem = "Me";

                        break;

                    default:

                        break;

                }

       }

                else if (os.Platform == PlatformID.Win32NT)

{

                                         switch (vs.Major)

                {

                    case 3:

                        operatingSystem = "NT 3.51";

                        break;

                    case 4:

                        operatingSystem = "NT 4.0";

                        break;

                    case 5:

                        if (vs.Minor == 0)

                            operatingSystem = "2000";

                        else

                            operatingSystem = "XP";

                        break;

                    case 6:

                        if (vs.Minor == 0)

                            operatingSystem = "Vista";

                        else

                            operatingSystem = "7";

                        break;

                    default:

                        break;

                }

}            

MessageBox.Show("operating System: " + operatingSystem + "\nOS Version: " + os.Version.ToString() + "\nOS Platoform: " + os.Platform.ToString() + "\nOS SP: " + os.ServicePack.ToString() + "\nOS Version String: " + os.VersionString.ToString());