OSVERSIONINFO os; os.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); GetVersionEx(&os); CString strOS; if(os.dwPlatformId == 0) {  strOS = "Win32"; } else if(os.dwPlatformId == 1) {  if(os.dwMinorVersion == 0) strOS = "Windows 95 ";  else if(os.dwMinorVersion == 10) strOS = "Windows 98 ";  strOS += os.szCSDVersion; } else if(os.dwPlatformId == 2) {  if(os.dwMajorVersion ==3)  {            strOS = "Windows NT 3.51";  }        else if(os.dwMajorVersion == 4)  {            strOS = "Windows NT 4.0";  }  else if(os.dwMajorVersion == 5)  {   if(os.dwMinorVersion == 0) strOS = "Windows 2000 ";   else if(os.dwMinorVersion == 1) strOS = "Windows XP ";   else if(os.dwMinorVersion == 2) strOS = "Windows Server 2003 ";  }  else if(os.dwMajorVersion == 6)  {   if(os.dwMinorVersion == 0) strOS = "Windows Vista ";   else if(os.dwMinorVersion == 1) strOS = "Windows 7 ";  }  strOS += os.szCSDVersion; } m_strVersion = strOS;