Localization - is it needed?

    ::AfxMessageBox (CFormat ("Unable to create TCP/IP socket for \"%s\", code = %i (%s)", 
                    (const char *) m_mush_name, 
                    iStatus,
                    GetSocketError (iStatus)));

      ::AfxMessageBox ("Insufficient memory in buffer to decompress text", MB_ICONEXCLAMATION);

  dlg.m_strPasteMessage.Format ("About to send: %ld character%s, %ld line%s to %s.",
                                nLength,
                                nLength == 1 ? "" : "s",
                                nLines,
                                nLines == 1 ? "" : "s",
                                (LPCTSTR) m_mush_name);

    ::AfxMessageBox ("An error occurred calculating amount to send to world", 
                      MB_ICONEXCLAMATION);

    ::AfxMessageBox ( _("An error occurred calculating amount to send to world"), 
                      MB_ICONEXCLAMATION);

#define _(String) gettext (String)

1st      -- form A
2nd      -- form B
3rd      -- form C
4th      -- form D
5th      -- form D again
21st     -- form A again
22nd     -- form B again

Compile error
World: (world name here)
Immediate execution
(nature of error here)

 m_ctlPluginList.InsertColumn(eColumnName, "Name", LVCFMT_LEFT, iColWidth [eColumnName]);
 m_ctlPluginList.InsertColumn(eColumnPurpose, "Purpose", LVCFMT_LEFT, iColWidth [eColumnPurpose]);
 m_ctlPluginList.InsertColumn(eColumnAuthor, "Author", LVCFMT_LEFT, iColWidth [eColumnAuthor]);
 m_ctlPluginList.InsertColumn(eColumnLanguage, "Language", LVCFMT_LEFT, iColWidth [eColumnLanguage]);
 m_ctlPluginList.InsertColumn(eColumnFile, "File", LVCFMT_LEFT, iColWidth [eColumnFile]);

//strMsg.Format ("Unable to resolve host name for \"%s\", code = %i (%s)", 
	  strMsg.Format ("Невозможно найти адрес \"%s\", код = %i (%s)",
                      (const char *) strWhich,
                      WSAGETASYNCERROR (lParam),
                      GetSocketError (WSAGETASYNCERROR (lParam)));
      if (App.m_bErrorNotificationToOutputWindow)
        Note (strMsg);
      else
        ::AfxMessageBox (strMsg);

English_United States.1252

formatted = {

-- TextView.cpp:589
  ["The %s contains %i line%s, %i word%s, %i character%s"] =
    function (a, b, c, d, e, f, g)
     
      return ""
    end,  -- function

-- ... and so on ..

}

-- TextView.cpp:589
  ["The %s contains %i line%s, %i word%s, %i character%s"] =
    function (a, b, c, d, e, f, g)
       
       local line = "line"
       if b ~= 1 then
         line = "lines"
       end -- plural lines
       
       local word = "word"
       if d ~= 1 then
         word = "words"
       end -- plural words
       
       local character = "character"
       if f ~= 1 then
         character = "characters"
       end -- plural characters
       
      return string.format ("There are %i %s, %i %s, %i %s in the %s",
             b, line, d, word, f, character, a)
             
    end,  -- function

::AfxMessageBox("\d0" "\90")

#include <vector>

// display message box - using UTF-8
int UMessageBox (const char * lpszText, UINT nType)
  {

  // find how big table has to be
  int iLength = MultiByteToWideChar (CP_UTF8, 0, lpszText, -1, NULL, NULL);

  // vector to hold Unicode
  vector<WCHAR> v;

  // adjust size
  v.resize (iLength);

  // do the conversion now
  MultiByteToWideChar (CP_UTF8, 0, lpszText, -1, &v [0], iLength);

  // determine icon based on type specified
  if ((nType & MB_ICONMASK) == 0)
  {
    switch (nType & MB_TYPEMASK)
    {
    case MB_OK:
    case MB_OKCANCEL:
      nType |= MB_ICONEXCLAMATION;
      break;

    case MB_YESNO:
    case MB_YESNOCANCEL:
      nType |= MB_ICONEXCLAMATION;
      break;

    case MB_ABORTRETRYIGNORE:
    case MB_RETRYCANCEL:
      // No default icon for these types, since they are rarely used.
      // The caller should specify the icon.
      break;
    }
  }

  int nResult = ::MessageBoxW (NULL, &v [0], L"MUSHclient", nType);

  return nResult;

  }   // end of UMessageBox

   UMessageBox ("\xC9\xB3\xC9\xA8\xC9\x95\xC9\xAE");