Как в C# определить версию Windows

   1:          private string GetOSName()

   2:          {

   3:              System.OperatingSystem os = System.Environment.OSVersion;

   4:              string osName = "Unknown";

   5:   

   6:   

   7:              switch (os.Platform)

   8:              {

   9:                  case System.PlatformID.Win32Windows:

  10:                      switch (os.Version.Minor)

  11:                      {

  12:                          case 0:

  13:                              osName = "Windows 95";

  14:                              break;

  15:                          case 10:

  16:                              osName = "Windows 98";

  17:                              break;

  18:                          case 90:

  19:                              osName = "Windows ME";

  20:                              break;

  21:                      }

  22:                      break;

  23:                  case System.PlatformID.Win32NT:

  24:                      switch (os.Version.Major)

  25:                      {

  26:                          case 3:

  27:                              osName = "Windws NT 3.51";

  28:                              break;

  29:                          case 4:

  30:                              osName = "Windows NT 4";

  31:                              break;

  32:                          case 5:

  33:                              if (os.Version.Minor == 0)

  34:                                  osName = "Windows 2000";

  35:                              else if (os.Version.Minor == 1)

  36:                                  osName = "Windows XP";

  37:                              else if (os.Version.Minor == 2)

  38:                                  osName = "Windows Server 2003";

  39:                              break;

  40:                          case 6:

  41:                              osName = "Windows Vista";

  42:                              if (os.Version.Minor == 0)

  43:                                  osName = "Windows Vista";

  44:                              else if (os.Version.Minor == 1)

  45:                                  osName = "Windows 7";

  46:   

  47:                              break;

  48:   

  49:                      }

  50:                      break;

  51:              }

  52:   

  53:              return osName + ", " + os.ServicePack.ToString() + ", " + os.Version.ToString();

  54:          }