LEGATO SYSTEMS INC
S-3/A, 1998-12-15
PREPACKAGED SOFTWARE
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   As filed with the Securities and Exchange Commission on December __, 1998
                                                     Registration No. 333-64693

================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              --------------------
                                 AMENDMENT NO. 1
                                       TO
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                              --------------------

                              LEGATO SYSTEMS, INC.
             (Exact Name of Registrant as Specified in Its Charter)

                 Delaware                                   94-3077394
       (State or Other Jurisdiction              (I.R.S. Employer Identification
     of Incorporation or Organization)                       Number)

                                3210 Porter Drive
                               Palo Alto, CA 94304
                                 (650) 812-6000
    (Address, Including Zip Code, and Telephone Number, Including Area Code,
                  of Registrant's Principal Executive Offices)

                                 Stephen C. Wise
                             Chief Financial Officer
                              Legato Systems, Inc.
                                3210 Porter Drive
                               Palo Alto, CA 94304
                                 (650) 812-6000
                (Name, Address, Including Zip Code, and Telephone
                    Number, Including Area Code, of Agent for
                  Service) The  Commission  is  requested  to send copies of all
                        communications to:

                         Robert V. Gunderson, Jr., Esq.
                            Daniel E. O'Connor, Esq.
                            Gunderson Dettmer Stough
                      Villeneuve Franklin & Hachigian, LLP
                             155 Constitution Drive
                          Menlo Park, California 94025
                                 (650) 321-2400


  Approximate date of commencement of proposed sale to the public:  As soon as
        practicable after this Registration Statement becomes effective.

     If the only  securities  being  registered  on this Form are being  offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. |_|

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. |X|

     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. |_|

     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. |_|

     If delivery of the  prospectus is expected to be made pursuant to Rule 434,
please check the following box. |_|

     The registrant  hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.



<PAGE>


                 Subject to Completion, dated December __, 1998

                                 249,999 Shares

                              LEGATO SYSTEMS, INC.

                                  Common Stock

                                -----------------

         This  Prospectus  relates  to the public  offering,  which is not being
underwritten,  of 249,999  shares (the  "Shares") of Common  Stock,  $0.0001 par
value (the "Common Stock") of Legato Systems,  Inc. (the "Company",  "Legato" or
the "Registrant").

         The Shares may be offered by certain  stockholders  of the Company (the
"Selling Stockholders") from time to time in transactions on the Nasdaq National
Market,  in  privately  negotiated  transactions,  or by a  combination  of such
methods  of sale,  at  fixed  prices  that  may be  changed,  at  market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices or at  negotiated  prices.  The  Selling  Stockholders  may  effect  such
transactions  by  selling  the  Shares  to or  through  broker-dealers  and such
broker-dealers may receive compensation in the form of discounts, concessions or
commissions  from the Selling  Stockholders  or the purchasers of the Shares for
whom such  broker-dealers  may act as agent or to whom they sell as principal or
both (which  compensation  to a particular  broker-dealer  might be in excess of
customary commissions). See "Selling Stockholders" and "Plan of Distribution."

         The Company will not receive any of the  proceeds  from the sale of the
Shares by the  Selling  Stockholders.  The  Company  has agreed to bear  certain
expenses  in  connection  with the  registration  and sale of the  Shares  being
offered by the Selling Stockholders.

         The Common  Stock is traded on the  Nasdaq  National  Market  under the
symbol  "LGTO."  Application  has been  made to list the  shares  on the  Nasdaq
National  Market.  On December __, 1998,  the closing bid price of the Company's
Common Stock on the Nasdaq National Market was $____ per share.

                         ------------------------------

         The  Selling   Stockholders  and  any  broker-dealers  or  agents  that
participate with the Selling  Stockholders in the distribution of the Shares may
be deemed to be  "underwriters"  within  the  meaning  of  Section  2(11) of the
Securities  Act,  and any  commissions  received  by them and any  profit on the
resale  of the  Shares  purchased  by  them  may be  deemed  to be  underwriting
commissions or discounts under the Securities Act.

         No underwriting commissions or discounts will be paid by the Company in
connection  with this  offering.  Estimated  expenses  payable by the Company in
connection with this offering are estimated to be $9,614. The aggregate price of
the Common Stock sold less the aggregate  agents'  commissions and underwriters'
discounts,  if any, and other expenses of issuance and distribution not borne by
the Company. See "Plan of Distribution."

                         ------------------------------

         THE COMMON STOCK OFFERED HEREBY INVOLVES A HIGH DEGREE OF RISK.

                          SEE "RISK FACTORS" ON PAGE 8.
                         ------------------------------

    NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
            COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES
          OR PASSED UPON THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS.
           ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

    INFORMATION HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A REGISTRATION
         STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
      SECURITIES EXCHANGE AND COMMISSION. THESE SECURITIES MAY NOT BE SOLD
 NOR MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
    BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL
  OR THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
          SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR
                SALE WOULD BE UNLAWFUL PRIOR TO REGISTRATION OR
           QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
                         ------------------------------

                The date of this Prospectus is December___, 1998


<PAGE>

                          ----------------------------

                                TABLE OF CONTENTS

                                                                            Page

Available Information                                                         4
Information Incorporated by Reference                                         4
Forward-Looking Statements                                                    6
The Company                                                                   7
Recent Developments                                                           7
Risk Factors                                                                  8
Use of Proceeds                                                              14
Selling Stockholders                                                         15
Plan of Distribution                                                         16
Legal Matters                                                                17
Experts                                                                      17


<PAGE>


                              AVAILABLE INFORMATION

         The  Company  is  subject  to  the  informational  requirements  of the
Securities Exchange Act of 1934, as amended (the "1934 Act"), and, in accordance
therewith,  files  reports,  proxy  statements  and other  information  with the
Securities  and Exchange  Commission  (the  "Commission").  Such reports,  proxy
statements and other information filed by the Company with the Commission can be
inspected  and  copied at the  public  reference  facilities  maintained  by the
Commission at Judiciary  Plaza, 450 Fifth Street,  N.W., Room 1024,  Washington,
D.C.  20549,  and the following  regional  offices of the  Commission:  New York
Regional Office, Seven World Trade Center, 13th Floor, New York, New York 10048;
and Chicago  Regional  Office,  Northwestern  Atrium  Center,  500 West  Madison
Street, Suite 1400, Chicago, Illinois 60621. Copies of such material may also be
obtained  from the  Public  Reference  Section  of the  Commission  at 450 Fifth
Street,  N.W.,  Washington,  D.C.  20549,  upon payment of prescribed  fees. The
Commission  also makes  electronic  filings  publicly  available on the Internet
within  24  hours  of  acceptance.   The   Commission's   Internet   address  is
http://www.sec.gov.  The  Commission web site also contains  reports,  proxy and
information  statements,  and other information  regarding registrants that file
electronically with the Commission. The Common Stock of the Company is quoted on
the Nasdaq National Market.  Reports, proxy and information statements and other
information  concerning the Company may be inspected at the National Association
of Securities Dealers, Inc. at 1735 K Street, N.W., Washington, D.C. 20006.

         The Company has filed with the Commission a  registration  statement on
Form S-3 (herein, together with all amendments, exhibits and schedules, referred
to as the "Registration Statement") under the Securities Act of 1933, as amended
(the "Securities  Act") with the Commission,  with respect to the Shares offered
hereby. This Prospectus does not contain all of the information set forth in the
Registration  Statement  and the exhibits  thereto,  certain  parts of which are
omitted in accordance with the rules and  regulations of the Commission,  and to
which  reference  is  hereby  made.  Statements  contained  in  this  Prospectus
regarding the contents of any contract or other  document to which  reference is
made are not necessarily complete, and in each instance reference is made to the
copy of such contract or other document filed as an exhibit to the  Registration
Statement,  each  such  statement  being  qualified  in  its  entirety  by  such
reference.  The  Registration  Statement,  including  the exhibits and schedules
thereto, may be inspected at the public reference  facilities  maintained by the
Commission at Room 1024,  Judiciary Plaza, 450 Fifth Street,  N.W.,  Washington,
D.C.  20549.  Copies of such material may be obtained from the Public  Reference
Section of the Commission at 450 Fifth Street,  N.W.,  Washington,  D.C.  20549,
upon the payment of the fees prescribed by the Commission.

                      INFORMATION INCORPORATED BY REFERENCE

         The  following  documents  previously  filed  by the  Company  with the
Commission (File No. 0-26130)  pursuant to the 1934 Act are hereby  incorporated
by reference in this Prospectus and made a part hereof:

     1. The  Company's  Annual  Report on Form 10-K for the  fiscal  year  ended
December 31, 1997, as amended by the Company's Amendment to the Annual Report on
Form 10-K/A for the fiscal year ended  December 31, 1997,  filed on November 11,
1998;

     2. The Company's  Quarterly Report on Form 10-Q for the three-month  period
ended March 31, 1998,  as amended by the  Company's  Amendment to the  Quarterly
Report on Form 10-Q/A for the three-month  period ended March 31, 1998, filed on
November 20, 1998;

     3. The Company's  Quarterly Report on Form 10-Q for the three-month  period
ended June 30, 1998,  as amended by the  Company's  Amendment  to the  Quarterly
Report on Form 10-Q/A for the three-month  period ended June 30, 1998,  filed on
November 20, 1998;

     4. The Company's  Quarterly Report on Form 10-Q for the three-month  period
ended September 30, 1998, filed on November 12, 1998;

     5. The Company's  Current Report on Form 8-K, filed on November 2, 1998, as
amended by the Company's Amendment to the Current Report on Form 8-K/A, filed on
December 14, 1998;

     6.  The  description  of  the  Company's  capital  stock  contained  in the
Company's  Registration Statement on Form 8-A, dated May 24, 1995, including any
amendment or report updating such description; and

     7.  The  description  of  the  Company's  capital  stock  contained  in the
Company's  Registration Statement on Form 8-A, dated May 23, 1997, including any
amendment or report updating such description.

         All documents filed by the Company  pursuant to Sections 13(a),  13(c),
14 or 15(d) of the 1934 Act subsequent to the date of this  Prospectus but prior
to the  termination  of the offering to which this  Prospectus  relates shall be
deemed to be  incorporated  by  reference  in this  Prospectus  and to be a part
hereof from the  respective  dates of filing of such  documents.  Any  statement
contained in a document  incorporated  or deemed to be incorporated by reference
herein  shall be  deemed to be  modified  or  superseded  for  purposes  of this
Prospectus  to the  extent  that a  statement  contained  herein or in any other
subsequently  filed  document  which  also  is  incorporated   herein  modifies,
supersedes or replaces such  statement.  Any statement so modified or superseded
shall  not  be  deemed,  except  as so  modified,  superseded  or  replaced,  to
constitute a part of this Prospectus.

         The  information  relating to the Company  contained in this Prospectus
does not  purport  to be  comprehensive  and  should be read  together  with the
information contained in the documents incorporated by reference herein.

         Upon written or oral request,  the Company will provide  without charge
to each person, including any beneficial owner, to whom a copy of the Prospectus
is delivered a copy of the documents  incorporated  by reference  herein but not
delivered with the prospectus (other than exhibits to such documents unless such
exhibits are specifically  incorporated by reference herein). Requests should be
submitted  in writing  or by  telephone  at (650)  812-6000  to Chief  Financial
Officer,  Legato Systems,  Inc., at the headquarters of the Company, 3210 Porter
Drive, Palo Alto, California 94304.

                         ------------------------------

             This Prospectus includes trademarks of the Company and
                               other corporations.
                         ------------------------------



<PAGE>


                          FORWARD - LOOKING STATEMENTS


         This  Prospectus,  including  the documents  incorporated  by reference
herein,   contains   forward-looking   statements   that   involve   risks   and
uncertainties.  The statements  contained in this  Prospectus or incorporated by
reference herein that are not purely historical are  forward-looking  statements
within the meaning of Section 27A of the  Securities  Act and Section 21E of the
1934 Act,  including  without  limitation  statements  regarding  the  Company's
expectations,  beliefs,  intentions  or  strategies  regarding  the future.  All
forward-looking  statements  included in this document are based on  information
available  to the  Company  on the  date  hereof,  and the  Company  assumes  no
obligation to update any such forward-looking  statements.  The Company's actual
results could differ materially from those anticipated in these  forward-looking
statements as a result of certain factors,  including, but not limited to, those
set forth in this  Prospectus  under "Risk Factors." In evaluating the Company's
business,  prospective investors should consider carefully the factors set forth
in this Prospectus under "Risk Factors" in addition to the other information set
forth in this Prospectus and incorporated by reference herein.



<PAGE>


                                   THE COMPANY

     The Company  develops,  markets and  supports  network  storage  management
software products for heterogeneous  client/server computing  environments.  The
Company  believes it is  currently a  technology  leader in the network  storage
management   software   market  because  of  the   scalability,   heterogeneity,
performance,  ease of use and central  administration of its software  products.
The  Company's  NetWorker  family of products and Global  Enterprise  Management
Systems ("G.E.M.S.")  software supports many storage management server platforms
and can accommodate a variety of clients, servers,  applications,  databases and
storage devices. The Company utilizes multiple distribution channels,  including
resellers,  OEMs and direct  sales.  The  Company  licenses  its source  code to
leading computer system and software suppliers,  including Amdahl,  Banyan, Data
General,  Digital, ICL,  Nihon-Unisys,  NEC, Siemens Nixdorf,  Silicon Graphics,
Sony,  Sun  Microsystems,  Tandem and Unisys,  which port the  products to their
proprietary  platforms,  sell the  products  through  their  direct and indirect
distribution  channels  and  provide  primary  support  for the  products  after
installation.  These relationships  enable the Company to reach a broad customer
base,  while reducing  development,  support and product costs. The Company also
has established strategic partnerships with Hewlett-Packard,  Informix, Netscape
and Oracle.

     The Company was  incorporated in Delaware in 1988. The Company's  principle
executive offices are located at 3210 Porter Drive, Palo Alto, California 94304.
Its telephone  number is (650) 812-6000.  The Company's home page can be located
on the world wide web at http://www.legato.com.  As used in this Prospectus, the
"Company" and "Legato" refer to Legato Systems, Inc. and its subsidiaries.


                               RECENT DEVELOPMENTS

     Acquisition of Software Moguls, Inc.

     On August 6, 1998, the Company  acquired the net assets of Software Moguls,
Inc., a developer of advanced  backup-retrieval  products for the Windows NT and
UNIX  environments,  in exchange for 249,999  shares  (inclusive  of  fractional
shares paid in cash) of the Company's common stock pursuant to the Agreement and
Plan of Reorganization,  dated July 30, 1998, by and among Legato Systems, Inc.,
Aspen   Acquisition   Corp.,   Software   Moguls,   Inc.,  Sunil  Khadilkar  (as
Shareholders'  Representative),  Louis C. Cole (as Escrow Agent) and the Selling
Stockholders, who were parties thereto (the "Reorganization Agreement"). The
combination  was  accounted  for  as  a  pooling  of  interests.  The  Company's
historical  operating  results  have been  restated  to  reflect  the  Company's
acquisition of Software Moguls, Inc.

     Proposed Acquisition of Qualix Group, Inc.

     On October 25, 1998,  the Company  entered  into a definitive  agreement to
acquire Qualix Group,  Inc. (dba FullTime  Software,  Inc.), a market leader and
leading  developer of  distributed,  enterprise-wide,  cross-platform,  adaptive
computing  solutions  that enable  customers to proactively  manage  application
service level availability. The agreement provides for the issuance of 1,721,000
shares of the  Company's  common  stock in exchange for all the common stock and
options of Qualix  Group,  Inc. The  transaction  is expected to be completed by
late  February  1999,  and is subject to the  satisfaction  of standard  closing
conditions, including regulatory approval and the approval of Qualix Group, Inc.
stockholders.  The  transaction  is expected to be accounted for as a pooling of
interests.

<PAGE>


                                  RISK FACTORS


     In  addition  to  the  other  information  in  this  Prospectus  and in the
documents incorporated by reference herein, the following risk factors should be
carefully   considered  in  evaluating  the  Company  and  its  business  before
purchasing the Common Stock offered by this Prospectus.

Fluctuations in Quarterly Operating Results; Future Operating Results Uncertain

     The Company's  quarterly  operating results have in the past varied and may
in the future vary  significantly  depending on a number of factors,  including,
but not  limited  to,  the size and  timing  of  significant  orders;  increased
competition;  market  acceptance  of  new  products,  applications  and  product
enhancements;  changes in pricing  policies by the Company and its  competitors;
the ability of the Company to timely develop, introduce and market new products,
applications  and  product  enhancements  and to control  costs;  the  Company's
success in expanding its sales and marketing programs;  technological changes in
the network  storage  management  market;  the mix of sales among the  Company's
channels;  deferrals  of  customer  orders  in  anticipation  of  new  products,
applications or product  enhancements;  changes in Company  strategy;  personnel
changes; and general economic factors.

     The  Company's  future  revenues  are  difficult  to  predict.  The Company
operates with virtually no order backlog because its software products typically
are shipped shortly after orders are received. In addition, the Company does not
recognize revenues on sales to domestic distributors until the products are sold
through to end-users.  As a result,  product license revenues in any quarter are
substantially  dependent  on orders  booked and shipped and on  sell-through  to
end-users in that quarter.  Revenues for any future quarter are not  predictable
with any significant degree of certainty. Product licenses and software services
and support  revenues  are  difficult  to forecast  because the network  storage
management  market is rapidly  evolving  and the  Company's  sales cycle  varies
substantially  from  customer to customer.  The Company has become  increasingly
dependent  upon  the  larger  enterprise   license   transactions  to  corporate
customers,  which often include product license, service and support components.
The Company's  operating  results are sensitive to the timing of such orders and
are subject to  purchasing  cycles and  budgetary  constraints  of the customer,
which are difficult to predict.  Due to the lengthier sales cycle and the larger
size of enterprise license  transactions,  if orders forecasted for a particular
quarter are not realized in that quarter,  the Company's  operating  results for
that  quarter may be adversely  affected.  Royalty  revenues  are  substantially
dependent upon product license sales by OEMs of their products that  incorporate
the  Company's  software.  Accordingly,  royalty  revenues  are subject to OEMs'
product  cycles,  which are also  difficult  to predict.  Royalty  revenues  are
further impacted by fluctuations in licensing activity from  quarter-to-quarter,
because initial license fees generally are non-recurring and recognized upon the
signing of the license  agreement.  The Company's  expense levels are based,  in
part, on its  expectations  as to future  revenues.  If revenue levels are below
expectations,  operating results are likely to be adversely affected. Net income
may  be  disproportionately  affected  by a  reduction  in  revenues  because  a
proportionately  smaller  amount  of the  Company's  expenses  varies  with  its
revenues. As a result, the Company believes that period-to-period comparisons of
its  results of  operations  are not  necessarily  meaningful  and should not be
relied upon as  indications of future  performance.  Due to all of the foregoing
factors,  it is possible that in some future  quarters the  Company's  operating
results may be below the  expectations  of public market analysts and investors.
In such  event,  the  price  of the  Company's  common  stock  would  likely  be
materially adversely affected.

Competition

     The network  storage  management  market is intensely  competitive,  highly
fragmented  and  characterized  by  rapidly  changing  technology  and  evolving
standards. Competitors vary in size and in the scope and breadth of the products
and services offered.  The Company's major competitors on the Novell NetWare and
Windows NT platforms include Computer Associates (Cheyenne Software) and Seagate
(Palindrome and Arcada);  on the Sun  Solaris/SunOS  platform  include  Computer
Associates   (Legent/Lachman),   EMC2   (Epoch),   Peripheral   Devices   (Delta
Microsystems),  Spectra Logic and Veritas;  on the AIX platform include IBM; and
on the HP-UX platform  include Hewlett  Packard.  In the future,  as the Company
enters new markets,  the Company expects that such markets will have additional,
market-specific  competitors.  In  addition,  many  of  the  Company's  existing
competitors  are broadening  their platform  coverage.  The Company also expects
increased competition from systems and network management companies,  especially
those that have historically  focused on the mainframe market and are broadening
their focus to include the client/server market. In addition,  because there are
relatively  low barriers to entry in the software  market,  the Company  expects
additional competition from other established and emerging companies.  Increased
competition is likely to result in price  reductions,  reduced gross margins and
loss of  market  share,  any of which  could  materially  adversely  affect  the
Company's business, operating results and financial condition.

     Many of the Company's current and potential  competitors have significantly
greater financial, technical, marketing and other resources than the Company. As
a  result,  they  may be  able  to  respond  more  quickly  to  new or  emerging
technologies  and  changes  in  customer  requirements,  or  to  devote  greater
resources to the development, promotion, sale and support of their products than
the Company. The Company also expects that competition will increase as a result
of future software industry  consolidations,  which have occurred in the network
storage  management  market in the past and are expected to occur in the future.
In addition, current and potential competitors have established or may establish
cooperative  relationships among themselves or with third parties.  Accordingly,
it is possible that new  competitors or alliances  among  competitors may emerge
and rapidly acquire  significant  market share. In addition,  network  operating
system  vendors could  introduce new or upgrade  existing  operating  systems or
environments  that  include  storage  management  functionality  offered  by the
Company's  products,  which could  render the  Company's  products  obsolete and
unmarketable. There can be no assurance that the Company will be able to compete
successfully against current or future competitors or that competitive pressures
faced  by the  Company  will  not  materially  adversely  affect  its  business,
operating results and financial condition.

Product Concentration

     The Company currently  derives a substantial  majority of its revenues from
its NetWorker  software products and related  services,  and the Company expects
that  revenues  from  NetWorker  will  continue to account for a majority of the
Company's  revenues  for the  foreseeable  future.  Broad market  acceptance  of
NetWorker is, therefore,  critical to the Company's future success. As a result,
a decline in unit prices of or demand for NetWorker, or failure to achieve broad
market acceptance of NetWorker, as a result of competition, technological change
or otherwise,  would have a material  adverse effect on the business,  operating
results and financial  condition of the Company.  The life cycle of NetWorker is
difficult  to  estimate  due in large  measure  to the recent  emergence  of the
Company's  market,   the  effect  of  new  products,   applications  or  product
enhancements,   technological   changes  in  the  network   storage   management
environment in which NetWorker  operates and future  competition.  The Company's
future financial performance will depend in part on the successful  development,
introduction  and market  acceptance of new products,  applications  and product
enhancements.  There can be no assurance  that the Company  will  continue to be
successful  in  marketing   and   licensing   NetWorker  or  any  new  products,
applications, product enhancements and related services.

Dependence on New Software Products; Rapid Technological Change

     The  network  storage   management   market  is   characterized   by  rapid
technological  change,  changing  customer needs,  frequent new software product
introductions  and evolving  industry  standards.  The  introduction of products
embodying new  technologies  and the emergence of new industry  standards  could
render the Company's existing products obsolete and unmarketable.  The Company's
future  success  will  depend  upon its  ability to develop  and  introduce  new
software products  (including new releases,  applications and enhancements) on a
timely  basis  that keep  pace  with  technological  developments  and  emerging
industry  standards  and address  the  increasingly  sophisticated  needs of its
customers.  There can be no  assurance  that the Company will be  successful  in
developing and marketing new products that respond to  technological  changes or
evolving industry standards,  that the Company will not experience  difficulties
that  could  delay or  prevent  the  successful  development,  introduction  and
marketing of these new products,  or that its new products will  adequately meet
the requirements of the marketplace or achieve market acceptance. If the Company
is unable,  for  technological  or other  reasons,  to develop and introduce new
products  in a timely  manner in  response  to  changing  market  conditions  or
customer requirements,  the Company's business,  operating results and financial
condition will be materially adversely affected. The Company currently has plans
to  introduce  and market  several  potential  new  products  in the next twelve
months.  Some of the  Company's  competitors  currently  offer  certain of these
potential new products.  Due to the complexity of client/server software and the
difficulty in gauging the engineering effort required to produce these potential
new products,  such potential new products are subject to significant  technical
risks.  There can be no  assurance  that such  potential  new  products  will be
introduced on a timely basis or at all. In the past, the Company has experienced
delays  in  the  commencement  of  commercial  shipments  of its  new  products,
resulting in customer  frustrations  and delay or loss of product  revenues.  If
potential  new products  are delayed or do not achieve  market  acceptance,  the
Company's business, operating results and financial condition will be materially
adversely  affected.  The Company has also, in the past,  experienced  delays in
purchases of its products by customers  anticipating  the launch of new products
by the  Company.  There can be no assurance  that  material  order  deferrals in
anticipation  of new product  introductions  will not occur,  which could have a
material  adverse  effect upon the  Company's  business,  operating  results and
financial condition.

     Software  products  as complex as those  offered by the Company may contain
undetected  errors or failures  when first  introduced  or as new  versions  are
released.  The Company has in the past discovered  software errors in certain of
its new products after their  introduction  and has  experienced  delays or lost
revenues  during the period  required  to correct  these  errors.  Although  the
Company has not experienced  material  adverse  effects  resulting from any such
errors to date,  there can be no assurance that,  despite testing by the Company
and by current and potential customers, errors will not be found in new products
after  commencement  of commercial  shipments,  resulting in loss of or delay in
market acceptance, which could have a material adverse effect upon the Company's
business, operating results and financial condition.

Risks Associated with Reliance on Enterprise License Transactions;
     Resellers; Strategy of Expanding OEM Channel

     An integral part of the Company's  strategy is to pursue larger  enterprise
license transactions with corporate  customers.  As there has been an increasing
number of  larger  enterprise  license  transactions,  which  may often  include
product license, service and support components, the Company's operating results
are  sensitive to the timing of such orders.  These  transactions  are typically
difficult to manage and predict. The execution of such larger enterprise license
transactions  typically involves significant technical evaluation and commitment
of capital  and other  resources,  with the delays  frequently  associated  with
customers'  internal  procedures,  including  delays to  approve  large  capital
expenditures,  to implement  the  deployment  of new  technologies  within their
networks,  and to test and accept new  technologies  that affect key operations.
For these and other reasons,  the sales cycle  associated with the completing an
enterprise license transaction is typically lengthy,  generally lasting three to
six months, is subject to a number of significant  risks,  including  customers'
budgetary  constraints  and  internal  acceptance  reviews,  that are beyond the
Company's control, and varies substantially from transaction to transaction. Due
to the lengthy sales cycle and the large size of certain transactions, if orders
forecasted for a specific  transaction for a particular quarter are not realized
in that  quarter,  the  Company's  operating  results  for that  quarter  may be
adversely affected.  There can be no assurance that the Company will continue to
complete or increase the number of such larger enterprise license  transactions,
and the  inability  to do so could  materially  adversely  affect the  Company's
business, operating results and financial condition.

     The Company relies  significantly on its distributors,  systems integrators
and value added  resellers  (collectively,  "resellers")  for the  marketing and
distribution  of its  products.  The  Company's  agreements  with  resellers are
generally  not  exclusive  and in many cases may be  terminated  by either party
without  cause.  Many of the  Company's  resellers  carry product lines that are
competitive  with those of the  Company.  There can be no  assurance  that these
resellers  will give a high priority to the marketing of the Company's  products
(they may, in fact,  give a higher  priority to other  products,  including  the
products  of  competitors)  or that they will  continue  to carry the  Company's
products. Events or occurrences of this nature could materially adversely affect
the Company's business, operating results and financial condition. The Company's
results of operations could also be materially  adversely affected by changes in
reseller inventory strategies, which could occur rapidly, and in many cases, may
not be related to end user demand.  There can be no  assurance  that the Company
will retain any of its current  resellers,  nor can there be any assurance  that
the Company will be successful in recruiting replacement or new organizations to
represent  it. Any such changes in the  Company's  distribution  channels  could
materially  adversely  affect the  Company's  business,  operating  results  and
financial condition.

     The Company's  strategy is also to increase the proportion of the Company's
customers licensed through OEMs. The Company is currently investing, and intends
to continue to invest, resources to develop this channel, which could materially
adversely affect the Company's operating margins. There can be no assurance that
the  Company  will  be  successful  in its  efforts  to  increase  the  revenues
represented by this channel.  The Company is dependent upon its OEMs' ability to
develop new  products,  applications  and product  enhancements  on a timely and
cost-effective  basis  that will meet  changing  customer  needs and  respond to
emerging  industry  standards  and  other  technological  changes.  There  is no
assurance  that the Company's  OEMs will  effectively  meet these  technological
challenges.  These  OEMs  are  not  within  the  control  of  the  Company,  may
incorporate  into their products the technologies of other companies in addition
to those of the Company and are not  obligated  to  purchase  products  from the
Company. In addition,  the Company's OEMs generally have exclusive rights to the
Company's technology on their respective  platforms,  subject to certain minimum
royalty  obligations.  There can be no assurance  that any OEM will  continue to
carry the  Company's  products,  and the  inability to recruit,  or the loss of,
important  OEMs  could  materially  adversely  affect  the  Company's  business,
operating results and financial condition.

International Operations; Risks Associated with International Sales

     The Company  believes  that its  continued  growth and  profitability  will
require  further  expansion  of  its  international   operations.  In  order  to
successfully expand  international  sales, the Company must establish additional
foreign   operations,   hire   additional   personnel  and  recruit   additional
international resellers.  This will require significant management attention and
financial  resources  and  could  materially   adversely  affect  the  Company's
operating  margins.  To the extent  that the  Company is unable to effect  these
additions in a timely manner,  the Company's  growth,  if any, in  international
sales  will be  limited,  and the  Company's  business,  operating  results  and
financial condition could be materially adversely affected.  In addition,  there
can be no  assurance  that the  Company  will be able to  maintain  or  increase
international   market  demand  for  the  Company's   products.   The  Company's
international  sales are currently  denominated in U.S. dollars.  An increase in
the value of the U.S.  dollar  relative  to  foreign  currencies  could make the
Company's products more expensive and,  therefore,  potentially less competitive
in those markets.  In some markets,  localization  of the Company's  products is
essential to achieve market penetration. The Company may incur substantial costs
and experience delays in localizing its products,  and there can be no assurance
that any localized product will ever generate significant revenues. In addition,
the Company relies  significantly  on its  distributors  and other  resellers in
international  sales efforts.  Since these  distributors and other resellers are
not employees of the Company and  typically do not offer the Company's  products
exclusively,  there can be no  assurance  that they will  continue to market the
Company's  products.  Additional  risks inherent in the Company's  international
business   activities   generally  include   unexpected  changes  in  regulatory
requirements,  tariffs and other trade barriers, lack of acceptance of localized
products,  if any, in foreign  countries,  longer  accounts  receivable  payment
cycles,  difficulties in managing international operations,  potentially adverse
tax consequences including restrictions on the repatriation of earnings, and the
burdens  of  complying  with a wide  variety of  foreign  laws.  There can be no
assurance  that such  factors  will not have a  material  adverse  effect on the
Company's future international sales and, consequently,  the Company's business,
operating results and financial condition.

Management of Expanding Operations

     The Company has recently  experienced a period of significant  expansion of
its operations that has placed a significant  strain upon its management systems
and resources.  In addition, the Company has recently hired a significant number
of employees,  and plans to further  increase its total  headcount.  The Company
also plans to expand the geographic  scope of its customer base and  operations.
This expansion has resulted and will continue to result in  substantial  demands
on the Company's management  resources.  From time to time, the Company receives
customer  complaints  about the  timeliness  and  accuracy of customer  support.
Although the Company plans to add customer support personnel in order to address
current  customer  support needs and intends to closely monitor progress in this
area,  there can be no assurance that these efforts will be  successful.  If the
Company's efforts are not successful, the Company's business,  operating results
and financial condition could be materially  adversely  affected.  The Company's
ability to compete effectively and to manage future expansion of its operations,
if any,  will  require the Company to  continue  to improve  its  financial  and
management  controls,  reporting  systems and  procedures  on a timely basis and
expand, train and manage its employee work force. There can be no assurance that
the Company will be able to do so successfully.  The Company's  failure to do so
could have a material  adverse  effect upon the  Company's  business,  operating
results and financial condition.

Risks Related to Acquisitions

     On August, 6, 1998, the Company acquired Software Moguls,  Inc. ("SMI"),  a
developer  of  advanced  backup-retrieval  products  for the Windows NT and UNIX
environments. SMI is based in Eden Prairie, Minnesota and had 32 employees as of
August  6,  1998.  Legato  expects  that it will  face  numerous  challenges  in
integrating  the  SMI  operations  and  employees  into  the  Company.  If  such
integration is not successful,  the Company's  business,  operating  results and
financial condition could be materially adversely effected.

     On October 25, 1998,  the Company  entered  into a definitive  agreement to
acquire Qualix Group, Inc. (dba FullTime Software, Inc.). The agreement provides
for the issuance of 1,721,000  shares of the Company's  common stock in exchange
for all the common stock and options of Qualix Group,  Inc. The  transaction  is
expected  to be  completed  by  late  February  1999,  and  is  subject  to  the
satisfaction of standard closing conditions,  including  regulatory approval and
the approval of Qualix Group, Inc. stockholders.  The transaction is expected to
be accounted for as a pooling of interests. The Company intends to file with the
Securities and Exchange Commission, in January 1999, a Registration Statement on
Form S-4 related to the acquisition of Qualix Group,  Inc. If the acquisition is
consummated,  the Company expects that it will still face numerous challenges in
integrating  the  operations  and  employees  of Qualix  Group,  Inc.,  into the
Company.  If  such  integration  is  not  successful,  the  Company's  business,
operating  results  and  financial  condition  could  be  materially   adversely
effected.

     The Company may make acquisitions in the future. Acquisitions of companies,
products or  technologies  entail  numerous  risks,  including:  an inability to
successfully   assimilate  acquired   operations  and  products;   diversion  of
management's  attention;  loss  of key  employees  of  acquired  companies;  and
substantial transaction costs.

     Some  of  the  products   acquired  may  require   significant   additional
development  before they can be marketed and may not generate  revenue at levels
anticipated by the Company.  Moreover,  future  acquisitions  by the Company may
result in dilutive issuances of its equity  securities,  the incurrence of debt,
large  one-time  write-offs  and the  creation of  goodwill or other  intangible
assets that could result in amortization  expense.  Any such problems or factors
could materially  adversely affect the Company's  business,  financial condition
and results of operations.

<PAGE>


Dependence Upon Key Personnel

     The Company's future  performance also depends in significant part upon the
continued service of its key technical and senior management personnel,  none of
whom is bound by an  employment  agreement.  The loss of the  services of one or
more of the  Company's  officers  or other key  employees  could have a material
adverse  effect on the  Company's  business,  operating  results  and  financial
condition.  The Company's future success also depends on its continuing  ability
to attract and retain  highly  qualified  technical  and  managerial  personnel.
Competition  for such  personnel is intense,  and there can be no assurance that
the Company can retain its key technical and managerial employees or that it can
attract,  assimilate or retain other highly  qualified  technical and managerial
personnel in the future.

Dependence on Growth in the Network Storage Management Market;
     General Economic and Market Conditions

     All of the Company's  business is in the network storage management market,
which is still an emerging market.  The Company's  future financial  performance
will  depend in large part on  continued  growth in the number of  organizations
adopting network storage management solutions for their client/server  computing
environments.  There can be no  assurance  that the market for  network  storage
management will continue to grow. If the network storage management market fails
to grow or  grows  more  slowly  than the  Company  currently  anticipates,  the
Company's   business,   operating  results  and  financial  condition  would  be
materially  adversely  affected.  During recent years,  segments of the computer
industry  have  experienced  significant  economic  downturns  characterized  by
decreased product demand, production overcapacity, price erosion, work slowdowns
and layoffs. The Company's  operations may in the future experience  substantial
fluctuations from  period-to-period  as a consequence of such industry patterns,
general economic conditions affecting the timing of orders from major customers,
and other factors  affecting  capital  spending.  There can be no assurance that
such factors will not have a material adverse effect on the Company's  business,
operating results or financial condition.

Dependence on Proprietary Technology; Risks of Infringement

     The Company depends significantly upon proprietary technology.  The Company
relies on a combination of patent,  copyright and trademark laws, trade secrets,
confidentiality procedures and contractual provisions to protect its proprietary
rights.  The Company  seeks to protect  its  software,  documentation  and other
written  materials under patent,  trade secret and copyright laws,  which afford
only limited protection. There can be no assurance that the Company will develop
proprietary products or technologies that are patentable, that any issued patent
will  provide  the  Company  with  any  competitive  advantages  or will  not be
challenged  by third  parties,  or that the  patents  of others  will not have a
material  adverse  effect on the Company's  ability to do business.  Despite the
Company's efforts to protect its proprietary  rights,  unauthorized  parties may
attempt  to  copy  aspects  of the  Company's  products  or to  obtain  and  use
information that the Company regards as proprietary.  Policing  unauthorized use
of the Company's  products is  difficult,  and although the Company is unable to
determine the extent to which piracy of its software  products exists,  software
piracy can be expected to be a persistent  problem.  In  licensing  its products
(other than in enterprise license transactions), the Company relies primarily on
"shrink wrap" licenses that are not signed by licensees,  and,  therefore,  such
licenses  may be  unenforceable  under  the laws of  certain  jurisdictions.  In
addition,  the laws of some  foreign  countries  do not  protect  the  Company's
proprietary  rights to as great an extent as do the laws of the  United  States.
There can be no assurance that the Company's means of protecting its proprietary
rights will be adequate or that the Company's competitors will not independently
develop similar  technology,  duplicate the Company's  products or design around
patents  issued to the  Company  or other  intellectual  property  rights of the
Company.

     There have also been  substantial  amounts of  litigation  in the  software
industry  regarding  intellectual  property rights. The Company has from time to
time received claims that it is infringing third parties'  intellectual property
rights,  and there can be no assurance that third parties will not in the future
claim  infringement  by the Company with respect to current or future  products,
trademarks  or other  proprietary  rights.  The Company  expects  that  software
product  developers will  increasingly be subject to infringement  claims as the
number of products and competitors in the Company's  industry  segment grows and
the functionality of products in different industry segments overlaps.  Any such
claims,  with or  without  merit,  could be  time-consuming,  result  in  costly
litigation,  cause product  shipment delays or require the Company to enter into
royalty or  licensing  agreements.  Such  royalty or  licensing  agreements,  if
required,  may not be  available on terms  acceptable  to the Company or at all,
which  could  have a  material  adverse  effect  upon  the  Company's  business,
operating results and financial condition.

Product Liability

     The  Company's  license  agreements  with its customers  typically  contain
provisions  designed  to limit  the  Company's  exposure  to  potential  product
liability  claims.  In licensing its products (other than in enterprise  license
transactions),  the Company relies  primarily on "shrink wrap" licenses that are
not signed by licensees,  and,  therefore,  such  licenses may be  unenforceable
under the laws of certain jurisdictions. As a result of these and other factors,
the  limitation  of  liability  provisions  contained in the  Company's  license
agreements  may not be effective.  The Company's  products can be used to manage
data  critical  to  organizations,  and,  as a result,  the sale and  support of
products  by the  Company  may entail the risk of product  liability  claims.  A
successful  product  liability  claim  brought  against the Company could have a
material  adverse  effect upon the  Company's  business,  operating  results and
financial condition.

Year 2000 Compliance

     Many currently  installed  computer systems and software products are coded
to accept only two digit entries in the date code field.  These date code fields
will need to accept four digit  entries to  distinguish  21st century dates from
20th century dates. As a result, in less than two years, computer systems and/or
software  used by many  companies  will need to be  upgraded to comply with such
"Year  2000"   requirements.   Systems  that  do  not  properly  recognize  such
information could generate erroneous data or cause a system to fail. Significant
uncertainty  exists in the software  industry  concerning the potential  effects
associated with such compliance.

     The Company has conducted Year 2000 compliance reviews for current versions
of the  Company's  products.  The review  includes  assessment,  implementation,
validation testing and contingency planning. The Company continues to respond to
customer  concerns  about  prior  versions  of  the  Company's   products  on  a
case-by-case basis. Although the Company believes its software products are Year
2000 compliant,  there can be no assurance that the Company's  software products
contain all the  necessary  software  routines  and  programs  for the  accurate
calculation,  display,  storage and manipulation of data involving dates. If the
Company's  software products do not contain all the necessary  software routines
and programs for the accurate calculation,  display, storage and manipulation of
data involving  dates, it would have a material  adverse effect on the Company's
business, operating results and financial condition.

     The  Company  has  tested  software  obtained  from third  parties  that is
incorporated into the Company's products, and is seeking assurances from vendors
that licensed  software is Year 2000  compliant.  Despite testing by the Company
and by current and  potential  customers,  and  assurances  from  developers  of
products  incorporated  into the Company's  products,  such products may contain
undetected errors or defects associated with Year 2000 date functions.  Known or
unknown  errors  or  defects  in our  products  may  result  in delay or loss of
revenue, diversion of development resources, damage to the Company's reputation,
or increased service and warranty costs, any of which could materially adversely
affect the Company's business, operating results, or financial condition.

     The Company does not currently  have any  information  concerning  the Year
2000  compliance  status of our customers.  As is the case with other  similarly
situated software companies,  if our current or future customers fail to achieve
Year 2000 compliance or if they divert  technology  expenditures to address Year
2000 compliance  problems,  the Company's  business,  results of operations,  or
financial condition could be materially adversely affected.

     The Company has  initiated  an  assessment  of material  internal  systems.
Although the Company  believes  the  software  and  hardware it uses  internally
comply with Year 2000 requirements and is not aware of any material  operational
issues or costs  associated  with  preparing  its  internally  used software and
hardware for the Year 2000, there can be no assurances that the Company will not
experience serious,  unanticipated  negative  consequences and/or material costs
caused by undetected  errors or defects in the  technology  used in its internal
systems.  The occurrence of any of the foregoing  could have a material  adverse
effect on the Company's business, operating results or financial condition.

     The Company has funded its Year 2000 compliance  review from operating cash
flows and has not separately  accounted for these costs in the past. The Company
will incur  additional  amounts related to the Year 2000  compliance  review for
administrative  personnel to manage the review,  outside contractor  assistance,
technical   support  for  our  products,   product   engineering   and  customer
satisfaction.  However,  management  does not  anticipate  that the Company will
incur  significant  operating  expenses  or be  required  to invest  heavily  in
computer systems improvements to be Year 2000 compliant.

Possible Volatility of Stock Price

     The trading  price of the  Company's  common stock has been subject to wide
fluctuations.  The trading price of the Company's  common stock could be subject
to wide  fluctuations  in the future in  response  to  quarterly  variations  in
operating results,  announcements of technological  innovations or new products,
applications or product enhancements by the Company or its competitors,  changes
in financial  estimates by securities  analysts and other events or factors.  In
addition,  the stock market has  experienced  volatility  that has  particularly
affected  the  market  prices  of  equity  securities  of many  high  technology
companies and that often has been unrelated to the operating performance of such
companies. These broad market fluctuations may adversely affect the market price
of the Company's common stock.

                                 USE OF PROCEEDS


     The Company  will not receive any  proceeds  from the sale of the shares by
the Selling Stockholders.

<PAGE>


                              SELLING STOCKHOLDERS


         The following table sets forth certain  information,  as of December 8,
1998,  with respect to the number of shares of Common Stock owned by the Selling
Stockholders  and as adjusted  to give effect to the sale of the Shares  offered
hereby.  The Shares are being registered to permit public  secondary  trading of
the Shares,  and the Selling  Stockholders  may offer the Shares for resale from
time to time. See "Plan of Distribution."

         The Shares being offered by the Selling Stockholders were acquired from
the Company in the Company's  acquisition of Software Moguls,  Inc., pursuant to
the  Reorganization  Agreement  on August 6, 1998.  The Common  Stock was issued
pursuant to an exemption from the  registration  requirements  of the Securities
Act.  The  Selling  Stockholders  represented  to the  Company  that  they  were
acquiring  the  Shares  for  investment   and  with  no  present   intention  of
distributing the Shares.

         The Company has filed with the Commission,  under the Securities Act, a
Registration Statement on Form S-3, as amended, of which this Prospectus forms a
part,  with  respect to the resale of the Shares from time to time on the Nasdaq
National Market or in privately-negotiated  transactions. The Company has agreed
to use  commercially  reasonable  efforts  to keep such  Registration  Statement
effective until the earlier of such time as (i) all the shares have been sold or
(ii) all the  Shares may be sold  under  Rule 144 of the  Securities  Act in any
three-month period.

         The Shares offered by this  Prospectus may be offered from time to time
by the Selling Stockholders named below:

<TABLE>
<CAPTION>
                                  Shares Beneficially Owned                             Shares Beneficially Owned
                                      Prior to Offering                                    After the Offering

Name and Address of               Number of                      Number of Shares     Number of
Selling Stockholders               Shares        Percent(1)        Being Offered        Shares       Percent(1)
- ---------------------               ------        -------           -------------       ------        -------
<S>                                    <C>           <C>               <C>                   <C>      <C>
Estate of Vinod Gupta                  90,036        *                 90,036                0        -
(Pratibha Gupta, Personal
Representative)
14835 Cherry Lane
Minnetonka, MN 55345

Charu Gupta                            30,012        *                 30,012                0        -
14835 Cherry Lane
Minnetonka, MN 55345

Shalini Gupta                          30,012        *                 30,012                0        -
14835 Cherry Lane
Minnetonka, MN 55345

Sunil S. and Vashuda                   69,927        *                 69,927                0        -
Khadilkar JTWROS
17205 Vantage Court
Eden Prairie, MN 55347

Sunil Khadilkar as Custodian           15,006        *                 15,006                0        -
for Harshad S. Khadilkar
under MN UTMA
17205 Vantage Court
Eden Prairie, MN 55347

Sunil Khadilkar, as Custodian          15,006        *                 15,006                0        -
for Himanshu Khadilkar under
MN UTMA
17205 Vantage Court
Eden Prairie, MN 55347

TOTAL                                 249,999          * %            249,999                0          - %
                                      =======          ==             =======              ====          ==
<FN>

- -----------------
*    Less than 1%

(1)  Applicable  percentage  ownership is based upon 37,608,006 shares of Common
     Stock  outstanding  on  December  8,  1998 and  option  shares  outstanding
     immediately  prior to and  immediately  following  the  completion  of this
     offering.  Beneficial  ownership is determined in accordance with the rules
     of the Securities and Exchange  Commission and generally includes voting or
     investment power with respect to securities,  subject to community property
     laws, where applicable. Shares of Common Stock subject to options currently
     exercisable or exercisable within 60 days of December 8, 1998 are deemed to
     be  beneficially  owned by the person  holding such options or warrants for
     the purpose of computing  the  percentage  ownership of such person but are
     not treated as  outstanding  for the purpose of  computing  the  percentage
     ownership of any other person. This Registration Statement shall also cover
     any additional  shares of Common Stock which become  issuable in connection
     with the shares registered for sale hereby by reason of any stock dividend,
     stock split, recapitalization or other similar transaction effected without
     the receipt of consideration  which results in an increase in the number of
     the Company's outstanding shares of Common Stock.
</FN>
</TABLE>

                              PLAN OF DISTRIBUTION

         The  Company  is   registering   the  Shares  offered  by  the  Selling
Stockholders hereunder pursuant to contractual  registration rights contained in
the Registration Rights Agreement, dated July 30, 1998, by and among the Company
and the Selling Stockholders (the "Registration Rights Agreement").  The Company
has  filed  with the  Commission,  under  the  Securities  Act,  a  Registration
Statement on Form S-3, of which this  Prospectus  forms a part,  with respect to
the resale of the Shares from time to time as described  below.  The Company has
agreed  to  use  commercially  reasonable  efforts  to  keep  such  Registration
Statement  effective  until the  earlier of such time as (i) all the Shares have
been sold or (ii) all the Shares  may be sold  under Rule 144 of the  Securities
Act in any three-month period.

         The Company will  receive no proceeds  from this  offering.  The Shares
offered  hereby  may be sold by the  Selling  Stockholders  from time to time in
transactions in the  over-the-counter  market, on the Nasdaq National Market, in
privately negotiated transactions,  or by a combination of such methods of sale,
at fixed prices which may be changed, at market prices prevailing at the time of
sale, at prices related to prevailing market prices or at negotiated prices. The
Selling  Stockholders  may effect such  transactions by selling the Shares to or
through broker-dealers,  and such broker-dealers may receive compensation in the
form of discounts,  concessions  or  commissions  from the Selling  Stockholders
and/or the  purchasers  of the Shares  for whom such  broker-dealers  may act as
agents or to whom they sell as principals,  or both (which  compensation as to a
particular broker-dealer might be in excess of customary commissions).

         In order to comply  with the  securities  laws of  certain  states,  if
applicable,  the  Shares  will  be  sold  in  such  jurisdictions  only  through
registered or licensed  brokers or dealers.  In addition,  in certain states the
Shares may not be sold unless they have been registered or qualified for sale in
the applicable  state or an exemption  from the  registration  or  qualification
requirement is available and is complied with.

         The  Selling   Stockholders  and  any  broker-dealers  or  agents  that
participate with the Selling  Stockholders in the distribution of the Shares may
under certain circumstances be deemed to be "underwriters" within the meaning of
the Securities Act, and any commissions received by them and any profit realized
on the resale of the Shares  purchased by them may be deemed to be  underwriting
commissions or discounts under the Securities Act. The Selling  Stockholders may
agree to indemnify such broker-dealers  against certain  liabilities,  including
liabilities under Securities Act.

         Any  broker-dealer  participating  in such  transactions  as agent  may
receive commissions from the Selling  Stockholders (and, if it acts as agent for
the purchase of such Shares, from such purchaser). Broker-dealers may agree with
the Selling  Stockholders  to sell a specified  number of Shares at a stipulated
price per share,  and,  to the extent  such a  broker-dealer  is unable to do so
acting as agent for the  Selling  Stockholders,  to purchase  as  principal  any
unsold  Shares.  Brokers-dealers  who acquire Shares as principal may thereafter
resell such Shares from time to time in transactions  (which may involve crosses
and  block  transactions  and  which  may  involve  sales to and  through  other
broker-dealers,  including  transactions of the nature  described  above) in the
over-the-counter  market, on the Nasdaq National Market, in privately negotiated
transactions,  or by a combination of such methods of sale, at fixed prices that
may be  changed,  at market  prices  prevailing  at the time of sale,  at prices
related  to such  prevailing  market  prices  or at  negotiated  prices,  and in
connection  with such resales may pay to or receive from the  purchasers of such
Shares commissions computed as described above.

         In connection  with  distributions  of  the  Shares  or otherwise,  the
Selling   Stockholders  may  enter  into  option  or  other   transactions  with
broker-dealers  which  require the delivery to the  broker-dealer  of the Shares
covered  hereby,  which  the  broker-dealer  may  resell or  otherwise  transfer
pursuant to this Prospectus.  A Selling  Stockholder may also loan or pledge the
Shares  covered hereby to a  broker-dealer  and the  broker-dealer  may sell the
Shares so loaned or, upon a default,  the  broker-dealer may effect sales of the
pledged Shares pursuant to this Prospectus.

         Under applicable  rules and regulations  under the 1934 Act, any person
engaged  in the  distribution  of the Shares  may not  simultaneously  engage in
market making  activities  with respect to the Common Stock of the Company for a
period of two business days prior to the commencement of such  distribution.  In
addition and without limiting the foregoing,  the Selling  Stockholders  will be
subject to applicable  provisions of the 1934 Act and the rules and  regulations
thereunder,   including,  without  limitation,  Rules  10b-6  and  10b-7,  which
provisions  may  limit  the  timing  of  purchases  and  sales of  shares of the
Company's Common Stock by the Selling Stockholders.

         The Selling  Stockholders  will pay all  commissions and other expenses
associated  with the sale of Shares by them. The Shares offered hereby are being
registered  pursuant  to  contractual  obligations  of  the  Company  under  the
Registration  Rights  Agreement,  and the  Company  has  agreed to bear  certain
expenses  in  connection  with the  registration  and sale of the  Shares  being
offered by the Selling  Stockholders.  The Company has not made any underwriting
arrangements with respect to the sale of Shares offered hereby.

                                  LEGAL MATTERS


         The legality of the  securities  offered hereby will be passed upon for
the Company by Gunderson  Dettmer Stough Villeneuve  Franklin & Hachigian,  LLP,
Menlo Park, California.

                                     EXPERTS


         The consolidated balance sheets of the Company as of December 31, 1997,
and 1996 and the consolidated  statements of income,  stockholders'  equity, and
cash flows for each of the years in the three year  period  ended  December  31,
1997 incorporated by reference in this Prospectus, have been incorporated herein
in  reliance   on  the  report  of   PricewaterhouseCoopers   LLP,   independent
accountants,  given on the authority of that firm as experts in  accounting  and
auditing.

         The consolidated  financial statements of Qualix Group, Inc. as of June
30, 1998 and 1997 and for each of the three  years in the period  ended June 30,
1998 are incorporated in this prospectus by reference from Legato Systems,  Inc.
current  report on Form 8-K/A  filed on December  14,  1998.  Such  consolidated
financial  statements  have been  audited by Deloitte & Touche LLP,  independent
auditors,  as stated in their report, which is incorporated herein by reference,
and have been so  incorporated  in  reliance  upon the report of such firm given
upon their authority as experts in accounting and auditing.


No  dealer,  salesperson,  Selling  Stockholders  or any other  person  has been
authorized to give any  information  or make any  representations  in connection
with this offering other than those  contained in this  Prospectus and, if given
or made, such information or  representations  must not be relied upon as having
been  authorized by the Company,  the Selling  Stockholders or any other person.
This  Prospectus  does not constitute an offer to sell or a solicitation  of any
offer to buy any of the securities  offered hereby by anyone in any jurisdiction
in which such offer or  solicitation  is not  authorized  or in which the person
making such offer or  solicitation is not qualified to do so or to any person to
whom it is unlawful to make such offer or solicitation.  Neither the delivery of
this  Prospectus nor any sale made  hereunder  shall,  under any  circumstances,
create any implication  that the information  contained  herein is correct as of
any time subsequent to the date of the Prospectus.


                                 249,999 Shares


                              LEGATO SYSTEMS, INC.


                                  Common Stock


                                  -------------


                               December ___, 1998

                                 --------------

<PAGE>




                                     PART II


                     INFORMATION NOT REQUIRED IN PROSPECTUS


Item 14.  Other Expenses of Issuance and Distribution.

         The  following   table  sets  forth  all   expenses,   other  than  the
underwriting discounts and commissions,  payable by the Registrant in connection
with the sale of the Common Stock being  registered.  All the amounts  shown are
estimates except for the registration fee.

<TABLE>
<S>                                                                                     <C>
          Securities and Exchange Commission Registration Fee..................         $3,614
          Legal Fees and Expenses..............................................          4,000
          Accounting Fees and Expenses.........................................          1,000
          Transfer Agent and Registrar Fees....................................            500
          Miscellaneous........................................................            500
                                                                                    ----------
               Total...........................................................         $9,614
                                                                                        ======
</TABLE>

Item 15.  Indemnification of Officers and Directors.

         Section 145 of the Delaware General Corporation law ("DGCL") empowers a
Delaware  corporation  to indemnify any persons who are, or are threatened to be
made,  parties to any  threatened,  pending or completed  legal action,  suit or
proceedings,  whether civil,  criminal,  administrative or investigative  (other
than action by or in the right of such corporation),  by reason of the fact that
such person was an officer or director of such corporation, or is or was serving
at the request of such corporation as a director,  officer, employee or agent of
another corporation or enterprise. The indemnity may include expenses (including
attorneys' fees),  judgments,  fines and amounts paid in settlement actually and
reasonably  incurred  by such person in  connection  with such  action,  suit or
proceeding,  provided that such officer or director acted in good faith and in a
manner he reasonably  believed to be in or not opposed to the corporation's best
interests, and, for criminal proceedings, had no reasonable cause to believe his
conduct was illegal. A Delaware corporation may indemnify officers and directors
in an action by or in the right of the  corporation  under the same  conditions,
except that no  indemnification  is permitted  without judicial  approval if the
officer  or  director  is  adjudged  to be  liable  to  the  corporation  in the
performance  of his duty.  Where an officer or  director  is  successful  on the
merits or  otherwise  in the  defense  of any  action  referred  to  above,  the
corporation  must  indemnify  him against  the  expenses  which such  officer or
director actually and reasonably incurred.

         In accordance with the DGCL, the Company's Certificate of Incorporation
("Certificate")  contains a provision  to limit the  personal  liability  of the
directors of the Company for  violations of their  fiduciary duty as a director.
This  provision  eliminates  each  director's  liability  to the  Company or its
stockholders  for monetary  damages  except (i) for any breach of the director's
duty of loyalty to the Company or its  stockholders,  (ii) for acts or omissions
not in good faith or which involve intentional misconduct or a knowing violation
of law, (iii) under Section 174 of the DGCL providing for liability of directors
for unlawful payment of dividends or unlawful stock purchases or redemptions, or
(iv) for any  transaction  from which a director  derived an  improper  personal
benefit.  The effect of this provision is to eliminate the personal liability of
directors for monetary damages for actions involving a breach of their fiduciary
duty of care, including any such actions involving gross negligence.

         Article XI of the Company's  Certificate and Article VII,  Section 6 of
the Company's Bylaws provide for  indemnification  of the officers and directors
of the Company to the fullest extent permitted by applicable law.

         The Company  has  entered  into  indemnification  agreements  with each
director and executive officer which provide  indemnification  to such directors
and executive  officers under certain  circumstances for acts or omissions which
may not be covered by directors' and officers' liability insurance.

Item 16.  Exhibits.

         The  exhibits  listed  in the  Exhibit  Index  as filed as part of this
Registration Statement.

         (a)  Exhibits

<TABLE>
Exhibit
Number      Description
<S>         <C>
2.1*        Agreement  and Plan of  Reorganization  dated July 30, 1998,  by and
            among  Legato  Systems,  Inc.,  Aspen  Acquisition  Corp.,  Software
            Moguls, Inc., Sunil Khadilkar (as Shareholder Representative), Louis
            C. Cole (as Escrow Agent) and the Selling Stockholders.
3.1 (1)     Amended and Restated Certificate of Incorporation of the Registrant,
            as amended to date.
3.2 (2)     Amended and Restated Bylaws of the Registrant adopted on May23,1997.
3.3 (3)     Form of Certificate of Designation filed in connection with Rights
            Agreement, dated May 23, 1997.
4.1*        Reference is made to Exhibits 3.1, 3.2 and 3.3.
4.2 (4)     Specimen Common Stock Certificate.
4.6         (4) Restated  Investor  Rights  Agreement,  dated September 8, 1993,
            among  the  Registrant  and the  investors  and the  founders  named
            therein, as amended January 28, 1994 and February 13, 1995.
4.7 (3)     Rights Agreement, dated May 23, 1997 between the Company and Harris
            Trust and Savings Bank, including the Certificate of Designation of
            Series A Junior Participating Preferred Stock, Form of Right
            Certificate and Summary of Rights to Purchase Preferred Shares
            attached thereto as Exhibit A, B and C, respectively.
4.8*        Registration Rights Agreement dated September 29, 1998.
4.9*        Affiliates Agreement dated July 30, 1998.
5.1*        Opinion of Gunderson Dettmer Stough Villeneuve Franklin &
            Hachigian, LLP.
23.1        Consent of PricewaterhouseCoopers LLP.
23.2*       Consent of Gunderson Dettmer Stough Villeneuve Franklin & Hachigian,
            LLP (included in the opinion filed as Exhibit 5.1).
23.3        Consent of Deloitte & Touche LLP.
24.1*       Power  of  Attorney.
27.1*       Financial Data Schedule.

- -------------------

<FN>

 *   Previously filed.

(1)  Incorporated by reference to the  registrant's  definitive  Proxy Statement
     for Special  Meeting of  Stockholders,  dated May 31, 1996,  and definitive
     Proxy Statement for Annual Meeting of Stockholders, dated April 6, 1998.

(2)  Incorporated by reference to the  registrant's  Current Report on Form 8-K,
     dated June 6, 1997.

(3) Incorporated by reference to the registrant's Form 8-A, dated May 30, 1997.

(4)  Incorporated  by reference to the  registrant's  Registration  Statement on
     Form S-1, filed May 9, 1995 (File No. 33-92072).
</FN>
</TABLE>



Item 17.  Undertakings.

         The undersigned Registrant hereby undertakes:

         (1) To file, during any period in which offers or sales are being made,
a post-effective  amendment to this Registration  Statement:  (i) to include any
prospectus  required by section  10(a)(3) of the Securities Act; (ii) to reflect
in the  prospectus  any facts or events  arising after the effective date of the
Registration  Statement (or the most recent  post-effective  amendment  thereof)
which,  individually or in the aggregate,  represent a fundamental change in the
information set forth in the  Registration  Statement;  and (iii) to include any
material  information  with respect to the plan of  distribution  not previously
disclosed  in  the  Registration  Statement  or  any  material  change  to  such
information in the Registration Statement.

         (2) That,  for the  purpose  of  determining  any  liability  under the
Securities Act, each such  post-effective  amendment shall be deemed to be a new
registration  statement  relating to the  securities  offered  therein,  and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

         (3) To remove from registration by means of a post-effective  amendment
any of the securities being registered which remain unsold at the termination of
the offering.

         Insofar as indemnification for liabilities arising under the Securities
Act may be  permitted to  directors,  officers  and  controlling  persons of the
Registrant  pursuant to the provisions  described in Item 15, or otherwise,  the
Registrant  has been advised that in the opinion of the  Securities and Exchange
Commission  such  indemnification  is against  public policy as expressed in the
Securities Act and is, therefore,  unenforceable.  In the event that a claim for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
Registrant of expenses  incurred or paid by a director,  officer or  controlling
person of the  Registrant  in the  successful  defense  of any  action,  suit or
proceeding)  is  asserted by such  director,  officer or  controlling  person in
connection with the securities being registered,  the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit  to a  court  of  appropriate  jurisdiction  the  question  whether  such
indemnification  by it is against  public policy as expressed in the  Securities
Act and will be governed by the final adjudication of such issue.

         The  undersigned  Registrant  hereby  undertakes  that, for purposes of
determining  any  liability  under  the  Securities  Act,  each  filing  of  the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
1934 Act (and,  where  applicable,  each  filing of an employee  benefit  plan's
annual report pursuant to Section 15(d) of the 1934 Act) that is incorporated by
reference in the Registration Statement shall be deemed to be a new registration
statement relating to the securities  offered therein,  and the offering of such
securities  at that time shall be deemed to be the  initial  bona fide  offering
thereof.

         For purposes of determining any liability under the Securities Act, the
information  omitted  from  the  form  of  prospectus  filed  as  part  of  this
Registration  Statement  in reliance  upon Rule 430A and  contained in a form of
prospectus  filed by the Registrant  pursuant to Rule 424(b)(1) or (4) or 497(h)
under  the  Securities  Act  shall  be  deemed  to be part of this  Registration
Statement as of the time it was declared effective.

<PAGE>

                                   SIGNATURES


         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the City of Palo Alto, State of California,  on this 15th day of
December, 1998.

                                         LEGATO SYSTEMS, INC.


                                         By:   /s/   Louis C. Cole
                                              Louis C. Cole
                                              Chairman of the Board, President
                                              and Chief Executive Officer

 Pursuant to the  requirements of the Securities Act of 1933, this  Registration
Statement has been signed by the following  persons in the capacities and on the
dates indicated:


<TABLE>
                Signature                                       Title                                 Date
                ---------                                       -----                                 ----
<S>                                          <C>                                               <C>
/s/  Louis C. Cole                           Chairman of the Board, President and Chief        December 15, 1998
- ----------------------------------------     Executive Officer (Principal Executive
Louis C. Cole                                Officer)
                                
/s/  Stephen C. Wise*                        Senior Vice President, Finance and                December 15, 1998
- ----------------------------------------     Administration and Chief Financial Officer 
Stephen C. Wise                              (Principal Financial and Accounting Officer)
                                             
/s/  Eric A. Benhamou*                        Director                                          December 15, 1998
- ----------------------------------------
Eric A. Benhamou
/s/  Kevin A. Fong*                           Director                                          December 15, 1998
- ----------------------------------------
Kevin A. Fong
/s/  David N. Strohm*                         Director                                          December 15, 1998
- ----------------------------------------
David N. Strohm
/s/  Phillip E. White*                        Director                                          December 15, 1998
- ----------------------------------------
Phillip E. White

*By: /s/  Louis C. Cole
- ----------------------------------------
Louis C. Cole
Attorney-in-Fact
</TABLE>

<PAGE>


                                  Exhibit Index


<TABLE>
Exhibit
Number      Description
<S>         <C>
2.1*        Agreement  and Plan of  Reorganization  dated July 30, 1998,  by and
            among  Legato  Systems,  Inc.,  Aspen  Acquisition  Corp.,  Software
            Moguls, Inc., Sunil Khadilkar (as Shareholder Representative), Louis
            C. Cole (as Escrow Agent) and the Selling Stockholders.
3.1 (1)     Amended and Restated Certificate of Incorporation of the Registrant,
            as amended to date.
3.2 (2)     Amended and Restated Bylaws of the Registrant adopted on May 23,1997
3.3 (3)     Form of Certificate of Designation filed in connection with Rights
            Agreement, dated May 23, 1997.
4.1*        Reference is made to Exhibits 3.1, 3.2 and 3.3.
4.2 (4)     Specimen Common Stock Certificate.
4.6         (4) Restated  Investor  Rights  Agreement,  dated September 8, 1993,
            among  the  Registrant  and the  investors  and the  founders  named
            therein, as amended January 28, 1994 and February 13, 1995.
4.7 (3)     Rights Agreement, dated May 23, 1997 between the Company and Harris
            Trust and Savings Bank, including the Certificate of Designation of
            Series A Junior Participating Preferred Stock, Form of Right
            Certificate and Summary of Rights to Purchase Preferred Shares
            attached thereto as Exhibit A, B and C, respectively.
4.8*        Registration Rights Agreement dated September 29, 1998.
4.9*        Affiliates Agreement dated July 30, 1998.
5.1*        Opinion of Gunderson Dettmer Stough Villeneuve Franklin &
            Hachigian, LLP.
23.1        Consent of PricewaterhouseCoopers LLP.
23.2*       Consent of Gunderson Dettmer Stough Villeneuve Franklin & Hachigian,
            LLP (included in the opinion filed as Exhibit 5.1).
23.3        Consent of Deloitte & Touche LLP.
24.1*       Power  of  Attorney.
27.1*       Financial Data Schedule.

- -------------------

<FN>

 *    Previously filed.

(1)   Incorporated by reference to the  registrant's  definitive Proxy Statement
      for Special  Meeting of  Stockholders,  dated May 31, 1996, and definitive
      Proxy Statement for Annual Meeting of Stockholders, dated April 6, 1998.

(2)  Incorporated by reference to the  registrant's  Current Report on Form 8-K,
     dated June 6, 1997.

(3) Incorporated by reference to the registrant's Form 8-A, dated May 30, 1997.

(4)   Incorporated by reference to the  registrant's  Registration  Statement on
      Form S-1, filed May 9, 1995 (File No. 33-92072).
</FN>
</TABLE>

<PAGE>


                                                                    EXHIBIT 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the  Registration  Statement on
Form S-3/A of Legato  Systems,  Inc. (the  "Company")  for the  registration  of
249,999  shares of its common  shares,  of our reports  dated  January 19, 1998,
except  for the  first  paragraph  of Note 5 and Note 11,  for which the date is
August 6,  1998,  on our audits of the  consolidated  financial  statements  and
financial  statement  schedule of the Company as of December  31, 1997 and 1996,
and for the years  ended  December  31,  1997,  1996 and 1995 which  reports are
included in the Company's 1997 Annual Report on Form 10-K/A,  as amended,  filed
with the Securities and Exchange Commission. We also consent to the reference to
our firm under the caption "Experts".



/s/ PRICEWATERHOUSECOOPERS LLP

San Jose, California
December 14, 1998

<PAGE>


                                                                    EXHIBIT 23.3

                       INDEPENDENT AUDITORS' CONSENT

We consent to the incorporation by reference in this  Registration  Statement of
Legato  Systems,  Inc.  on Form S-3/A of our report  dated July 23,  1998 on the
consolidated  financial  statements  of Qualix  Group,  Inc.,  appearing  in the
Current  Report on Form 8-K/A of Legato  Systems,  Inc. as filed on December 14,
1998. We also consent to the reference to us under the heading "Experts" in such
Prospectus.



/s/ DELOITTE & TOUCHE LLP

San Jose, California
December 14, 1998


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