OS 가 98 이더냐? - GetVersionEx()

bool IsSystemWin98()
{
	OSVERSIONINFO osv;
	osv.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
	if (GetVersionEx(&osv))
	{
		switch(osv.dwPlatformId)
		{
			case VER_PLATFORM_WIN32_NT:
				return false;

			case VER_PLATFORM_WIN32s:
			case VER_PLATFORM_WIN32_WINDOWS:
			default:
				return true;
		}
	}
	else
		return true;
}