EXHIBIT 11

                        MANGOSOFT, INC. AND SUBSIDIARIES
                          (A DEVELOPMENT STAGE COMPANY)

                    COMPUTATION OF NET LOSS PER COMMON SHARE

             THREE AND NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (UNAUDITED)
<TABLE>
<CAPTION>
                                                                        THREE MONTHS ENDED
                                                                      ----------------------
                                                                       1999            1998
                                                                      ------          ------
<S>                                                                <C>           <C>
BASIC NET PER COMMON SHARE:
Net loss applicable to common shares as reported ................. $(15,747,541) $ (3,434,533)
Weighted average number of common shares outstanding:
   Common Stock ..................................................    5,288,353       136,949
                                                                   ------------- ------------

   Basic net loss per common share ............................... $      (2.98) $     (25.08)
                                                                   ============  ============

DILUTED NET LOSS PER COMMON SHARE:
Net loss applicable to common shares as reported ................. $(15,747,541) $ (3,434,533)
Weighted average number of common shares outstanding:
   Common Stock ..................................................    5,288,353       136,949
   Effect of common stock equivalents ............................           --            --
                                                                   ------------- ------------
   Total .........................................................    5,288,353       136,949
                                                                   ------------- ------------

  Diluted net loss per common share ............................. $      (2.98)  $     (25.08)
                                                                   ============  ============

                                                                        NINE MONTHS ENDED
                                                                      ----------------------
                                                                        1999          1998
                                                                      --------      --------
BASIC NET LOSS PER COMMON SHARE:
Net loss applicable to common shares as reported ................. $(20,890,449) $(12,238,100)
Weighted average number of common shares outstanding:
   Common Stock ..................................................    1,872,953       136,049
                                                                   ------------- ------------

   Basic net loss per common share ............................... $     (11.15) $     (89.95)
                                                                   ============  ============

DILUTED NET LOSS PER COMMON SHARE:
Net loss applicable to common shares as reported ............       (20,890,449) $(12,238,100)
Weighted average number of common shares outstanding:
   Common Stock .............................................         1,872,953       136,909
   Effect of common stock equivalents .......................                --            --
                                                                   ------------- ------------
   Total ....................................................         1,872,449       136,949
                                                                   ------------- ------------

   Diluted net loss per common share ........................      $     (11.15) $     (89.95)
                                                                   ============  ============
</TABLE>