enum class OS {
  OSAll = 0,
  W2K = (PLATFORM_WINDOWS_VALUE+0x01),
  WXP = (PLATFORM_WINDOWS_VALUE+0x02),
  WVISTA = (PLATFORM_WINDOWS_VALUE+0x04),
  WSeven = (PLATFORM_WINDOWS_VALUE+0x08),
  LUbuntu = (PLATFORM_LINUX_VALUE+0x01),
  MMacOS = (PLATFORM_MAC_VALUE+0x01)
};