UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------


                                  SCHEDULE 13D
                                 (Rule 13d-101)

    INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a)
             AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a)


                                 Mangosoft, Inc.
                                ----------------
                                (Name of Issuer)

                     Common Stock, par value $.001 per share
                     ---------------------------------------
                         (Title of Class of Securities)

                                    562716209
                    ----------------------------------------
                                 (CUSIP Number)

                                Steven A. Meetre
                               Proskauer Rose LLP
                                  1585 Broadway
                            New York, New York 10036
                                  212-969-3000
- -------------------------------------------------------------------------------
(Name, Address and Telephone Number of Person Authorized to Receive Notices and
                                 Communications)

                                  July 23, 2003
             ------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

     If the filing person has previously filed a statement on Schedule 13G to
report the acquisition that is the subject of this Schedule 13D, and is filing
this schedule because of Rule 13d-1(e), 13(d)-1(f) or 13(d)- 1(g), check the
following box [ ].




                                  SCHEDULE 13D

- ---------------------
CUSIP No. 562716209
- ---------------------


________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     Jay Zises
     S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
     (Intentionally Omitted)


________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [X]

________________________________________________________________________________
3    SEC USE ONLY



________________________________________________________________________________
4    SOURCE OF FUNDS*
     PF


________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]



________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION
     U.S.

________________________________________________________________________________
               7    SOLE VOTING POWER
                    120,210
  NUMBER OF

   SHARES      _________________________________________________________________
               8    SHARED VOTING POWER
BENEFICIALLY        1,499

  OWNED BY
               _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER
                    120,210
  REPORTING

   PERSON      _________________________________________________________________
               10   SHARED DISPOSITIVE POWER
    WITH            1,499


________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     121,709

________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]

________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     12.09%

________________________________________________________________________________
14   TYPE OF REPORTING PERSON*

     IN

________________________________________________________________________________



                            Statement on Schedule 13D
                             Pursuant to Rule 13d-1
                                    under the
                   Securities Exchange Act of 1934, as amended


Item 1.   Security and Issuer.

     This Statement on Schedule 13D (this "Statement") relates to the common
stock, par value $0.001 per share (the "Common Stock") and Series B Convertible
Preferred Stock, par value $0.001 per share (the "Series B Preferred Stock"), of
MangoSoft, Inc., a Delaware corporation ("MangoSoft"). The principal executive
offices of MangoSoft are located at 12 Pine Street Extension, New Hampshire
03060.

Item 2.  Identity and Background.

     (a)-(c) and (f) This Statement is being filed by Jay Zises ("Mr. Zises"), a
natural person who is a U.S. Citizen. Mr. Zises is engaged primarily in the
business of investing. The principal office and business address of Mr. Zises is
ACAP, Inc., 767 Third Avenue, 16th Floor, New York, New York 10017.

     (d) and (e) During the last five years, Mr. Zises (i) has not been
convicted in a criminal proceeding (excluding traffic violations or similar
misdemeanors) or (ii) has not been a party to a civil proceeding of a judicial
or administrative body of competent jurisdiction and as a result of such
proceeding was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities subject to, Federal
or State securities laws or finding any violation with respect to such laws.

Item 3.  Source and Amount of Funds or Other Consideration.

     The source of funds used to purchase the Series B Preferred Stock is from
the personal funds of Mr. Zises.

Item 4.  Purpose of Transaction.

     On July 23, 2003, Mr. Zises purchased from MangoSoft 10,000 shares of
Series B Preferred Stock for $2.50 per share. Each share of Series B Preferred
Stock is convertible into one share of Common Stock, however the holders of
Series B Preferred Stock are entitled to 25 votes per share of Series B
Preferred Stock held on any matter as to which holders of Common Stock are
entitled to vote. A significant asset of MangoSoft are pending patent
infringement claims against specified major software and hardware developers and
distributors. The purpose of the transaction to which this Statement relates is
to give majority voting control respecting the Common Stock to Mr. Zises and his
brother, Selig Zises, each of whom has a long and supportive affiliation with
MangoSoft, to prevent a defendant in the litigations from making a tender offer
for or otherwise acquiring a majority of the outstanding Common Stock at current
market value, which value represents substantially less than the damages claimed
by MangoSoft in the litigations, for




the purpose of gaining control of these litigations to the detriment of
MangoSoft and its stockholders.

     A copy of the Certificate of Designation of the Series B Preferred Stock is
filed as an exhibit to MangoSoft's Form 8-K, filed July 24, 2003, and is
incorporated by reference herein.

     Mr. Zises has no plans or proposals which relate to or which would result
in or relate to any of the actions specified in paragraphs (a) through (j) of
Item 4 of Schedule 13D.

Item 5.  Interest in Securities of the Issuer

     (a) As a result of the issuance of the Series B Preferred Stock, Mr. Zises
may be deemed to be the beneficial owner of 121,709 shares of Common Stock,
which represents approximately 12.09% of the shares of Common Stock outstanding
as of July 23, 2003.

     (b) Mr. Zises would have, upon conversion of the shares of Series B
Preferred Stock acquired, the sole power to vote, or to direct the vote of, and
the sole power to dispose, or to direct the direct the disposition of, an
aggregate of 120,210 shares of Common Stock, and the shared power to vote, or to
direct the vote of, and the shared power to dispose, or to direct the
disposition of, 1499 shares of Common Stock, representing in the aggregate
approximately 12.09% of the outstanding shares of Common Stock.

     (c) Except as noted above, Mr. Zises did not effect any transactions in the
Common Stock during the past 60 days.

        (d) and (e)   Not applicable.

Item 6. Contracts, Arrangements, Understandings or Relationships with respect to
Securities of the Issuer.

     Other than as described in Item 4 above, to the knowledge of Mr. Zises,
there are no contracts, arrangements, understandings or relationships (legal or
otherwise) among the persons named in Item 2 and between such person and any
person with respect to any securities of MangoSoft.

Item 7.  Material to be Filed as Exhibits.

       Exhibit No.         Description
       -----------         -----------

         99.1              Certificate of Designation of Series A Convertible
                           Preferred Stock, incorporated herein by reference to
                           Exhibit 99.1 of MangoSoft's Form 8-K filed with the
                           SEC on July 24, 2003.



                                    SIGNATURE


     After reasonable inquiry and to the best knowledge and belief of the
undersigned, the information set forth in this statement is true, complete and
correct.


Dated July 23, 2003


                                                  /s/ Jay Zises
                                                  -----------------
                                                  Jay Zises