void ShowNTUsers() 
{ 
   DWORD dwTotalEntries; 
   DWORD dwEntriesRead; 
   DWORD dwPrefmaxlen =  256 ; 
   USER_INFO_10 * theEntries = new USER_INFO_10[ 256 ];
   char szData[ 4096 ];
   char chLine[ 256 ];
   NET_API_STATUS napistat; 
   WCHAR cServer[ 50 ];// = "\\\\bigone";
   HANDLE hFile;
   DWORD dwWr;

   MultiByteToWideChar(CP_ACP, MB_COMPOSITE, "\\\\bigone\0",  9 , cServer,  50 );
   napistat = ::NetUserEnum((LPCWSTR) cServer,  10 , FILTER_NORMAL_ACCOUNT, (LPBYTE*)&theEntries , MAX_PREFERRED_LENGTH,                            &dwEntriesRead, &dwTotalEntries, NULL);
 
//Функция возвращает только 8 записей вместо 175
//dwTotalEntries = 175
//dwEntriesRead = 8
//napistat = 234 -> ERROR_MORE_DATA "More data is available"

   if (napistat == NERR_Success) 
   { 
      MessageBox (NULL, "NetUserEnum failed", "ERROR", MB_OK); 
      return; 
   } 

    
   hFile = (HANDLE)CreateFile("users.txt\0", GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, 
          FILE_ATTRIBUTE_NORMAL, NULL);
    chLine[ 0 ] = '\0';
    szData[ 0 ] = '\0';

   for (int i= 0 ; i< dwEntriesRead; i++) 
   { 
       wsprintf(chLine, "%ls\t%ls\t%ls\r\n", theEntries[i].usri10_name, 
           theEntries[i].usri10_full_name, theEntries[i].usri10_comment);
       strcat(szData, chLine);
       chLine[ 0 ] = '\0';
        
   }
   

   WriteFile(hFile,szData, strlen(szData), &dwWr, NULL); 
   
   ::NetApiBufferFree (theEntries);

   CloseHandle(hFile);
}