LEGATO SYSTEMS INC
S-3/A, 1999-04-12
PREPACKAGED SOFTWARE
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   As filed with the Securities and Exchange Commission on April 12, 1999
                                                   Registration No. 333-75581

================================================================================
                       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. |_|

<TABLE>
<CAPTION>
                                                  CALCULATION OF REGISTRATION FEE
- ----------------------------- ---------------------- ------------------- ------------------------ ------------------
                                                     Proposed   Maximum
   Title of each class of         Amount to be       Offering Price         Proposed Maximum          Amount of
Securities to be Registered        Registered         per Security(1)      Aggregate Offering     Registration Fee
                                                                                Price(1)
- ----------------------------- ---------------------- ------------------- ------------------------ ------------------
<S>                              <C>                       <C>                   <C>                 <C>
 Common Stock, no par value      720,000 shares            $47.00                $33,840,000.00      $9,408.00

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

<FN>
(1) The price of $47.00  per  share,  which was the  average of the high and low
    prices of the Common Stock on the Nasdaq  National  Market on April 1, 1999
    is set forth solely for the purpose of calculating the  registration  fee in
    accordance with Rule 457(c) of the Securities Act of 1933, as amended.
</FN>
</TABLE>


     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 April _, 1999

                                 720,000 Shares

                              LEGATO SYSTEMS, INC.

                                  Common Stock

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

              INVESTING IN OUR COMMON STOCK INVOLVES CERTAIN RISKS.
                     SEE "RISK FACTORS" STARTING ON PAGE 4.

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




         The selling  stockholders  listed on page 13 are  offering  and selling
720,000 shares of our common stock under this prospectus.


         The selling stockholders may offer their Legato stock through public or
private transactions, on or off the Nasdaq National Market, at prevailing market
prices, or at privately negotiated prices.


         Our common  stock is traded on The  Nasdaq  National  Market  under the
symbol  "LGTO." On April 1, 1999,  the closing bid price of the common stock on
The Nasdaq National Market was $47.00 per share.


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


         Neither the Securities and Exchange Commission Nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

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




<PAGE>




                  The date of this Prospectus is April __, 1999




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

                                TABLE OF CONTENTS

                                                                         Page

Business of Legato Systems, Inc.                                            3
Recent Developments                                                         3
Risk Factors                                                                4
Forward-Looking Statements                                                 12
Use of Proceeds                                                            12
Selling Stockholders                                                       13
Plan of Distribution                                                       14
Legal Matters                                                              14
Experts                                                                    14
Where You Can Find More Information                                        14


<PAGE>


                             THE BUSINESS OF LEGATO

         Legato  develops,  licenses,  markets and supports a broad,  integrated
suite of storage management software applications operating on multiple computer
systems.  Our  NetWorker  family of  software  products,  from which we derive a
substantial amount of our revenues,  and Global Enterprise  Management  Systems,
support many storage  management server platforms,  such as UNIX and Windows NT,
and can accommodate a variety of servers, clients,  applications,  databases and
storage devices.  We license our products through  resellers and directly to end
users in North America, Europe and Asia Pacific. We also license our source code
in exchange for initial licensing fees to original  equipment  manufacturers and
receive ongoing  royalties from the original  equipment  manufacturers'  product
sales.  Substantially  all of the  original  equipment  manufacturers  are large
computer system and software suppliers located in the United States,  Europe and
Asia Pacific.

         Our principle  executive offices are located at 3210 Porter Drive, Palo
Alto, California 94304 and our telephone number is (650) 812-6000.



                          RECENT DEVELOPMENTS AT LEGATO

     On October 25,  1998,  we entered  into a  definitive  agreement to acquire
Qualix Group,  Inc. (dba FullTime  Software,  Inc.), a 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 our common stock in
exchange  for all the  common  stock and  options  of  Qualix  Group,  Inc.  The
transaction  is expected  to be  completed  by the end of April of 1999,  and is
subject to the  satisfaction  of  standard  closing  conditions,  including  the
approval  of Qualix  Group,  Inc.  stockholders.  We expect to  account  for the
transaction as a pooling-of-interests.


         On  April  1,  1999,  we  completed  the  acquisition  of  Intelliguard
Software,   Inc.  and  O.R.P.,  Inc.,  developers  of  standards-based   storage
management  solutions for storage area networks.  In this document,  we refer to
Intelliguard Software, Inc. and O.R.P., Inc. collectively as "Intelliguard".  We
issued  720,000  shares of our common stock and provided cash  consideration  of
$9,112,500 for all of the outstanding stock and stock rights of Intelliguard. We
accounted for the transaction as a business purchase combination.


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

                This Prospectus includes trademarks of Legato and
                              other corporations.
                         ------------------------------



<PAGE>


                                  RISK FACTORS


     OUR QUARTERLY OPERATING RESULTS ARE VOLATILE AND UNCERTAIN.  OUR FAILURE TO
MEET PUBLIC  MARKET  ANALYSTS'  EXPECTATIONS  WOULD HARM THE MARKET PRICE OF OUR
COMMON STOCK.

     Our quarterly operating results have varied in the past and may vary in the
future.  We  believe  that  period-to-period   comparisons  of  our  results  of
operations  are not  meaningful  and should not be relied upon as indications of
future  performance.  We believe  that our  operating  results  may be below the
expectations  of public market  analysts and investors in some future quarter or
quarters. In the past, our common stock price has on occasion declined following
earnings  announcements.  Our failure to meet  analyst or investor  expectations
would likely seriously harm the market price of our common stock.

     We  cannot  predict  our  future  revenue  with any  significant  degree of
certainty for several reasons including:

     -    Product  revenue in any quarter is  substantially  dependent on orders
          booked and shipped in that quarter, since we operate with virtually no
          order backlog;

     -    We do not recognize  revenue on sales to domestic  distributors  until
          the products are sold through to end-users;  o The storage  management
          market is rapidly evolving; o Our sales cycles vary substantially from
          customer  to   customer,   in  large  part  because  we  are  becoming
          increasingly  dependent upon larger enterprise license transactions to
          corporate  customers.   Such  transactions  include  product  license,
          service and support components and take a long time to complete;

     -    The timing of large orders can  significantly  affect revenue within a
          quarter; and

     -    License and royalty  revenue are  difficult to  forecast.  Our royalty
          revenue  is  dependent  upon  product  license  sales by OEMs of their
          products that  incorporate  our software.  Accordingly,  these royalty
          revenues are subject to OEMs' product cycles, which are also difficult
          to predict. Fluctuations in licensing activity from quarter to quarter
          further  impact  royalty   revenues,   because  initial  license  fees
          generally  are  non-recurring  and  recognized  upon the  signing of a
          license agreement.

     Our expense  levels are  relatively  fixed and are based,  in part,  on our
expectations of our future revenue.  Consequently,  if revenue levels fall below
our  expectations,  our net income will decrease because only a small portion of
our expenses varies with our revenues.


     OUR  MARKET  IS  HIGHLY  COMPETITIVE  AND  IF  WE  ARE  UNABLE  TO  COMPETE
SUCCESSFULLY, OUR BUSINESS WILL BE HARMED.

     We operate in the enterprise storage management market,  which 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.

     We  expect  to  encounter  new  competitors  as we enter  new  markets.  In
addition,  many  of our  existing  competitors  are  broadening  their  platform
coverage.  We  also  expect  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,  since there are  relatively  low barriers to entry in the
software market,  we expect  additional  competition from other  established and
emerging companies. We also expect that competition will increase as a result of
future software industry consolidations.  Increased competition could harm us by
causing, among other things:

     -    Price reductions;

     -    Reduced gross margins; and

     -    Loss of market share.

     Many  of our  current  and  potential  competitors  have  longer  operating
histories and have substantially greater financial,  technical, sales, marketing
and other  resources,  as well as greater name recognition and a larger customer
base, than we have. As a result,  certain current and potential  competitors can
respond  more  quickly to new or emerging  technologies  and changes in customer
requirements.  They  can  also  devote  greater  resources  to the  development,
promotion,  sale and  support  of  their  products.  In  addition,  current  and
potential competitors may establish  cooperative  relationships among themselves
or with third parties. If so, 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  functionality  offered by our products. If
so, our  products  could be  rendered  obsolete  and  unmarketable.  For all the
foregoing  reasons,  we may not be able to  compete  successfully,  which  would
seriously harm our business, operating results and financial condition.


     WE DEPEND ON OUR NETWORKER  PRODUCT LINE. A DECLINE IN THE PRICE OF, DEMAND
FOR, OR MARKET ACCEPTANCE OF, NETWORKER WOULD SERIOUSLY HARM OUR BUSINESS.

     We currently derive, and expect to continue to derive, a substantial amount
of our revenue from our  NetWorker  software  products and related  services.  A
decline in the price of or demand  for  NetWorker,  or failure to achieve  broad
market  acceptance of NetWorker,  would  seriously harm our business,  operating
results  and  financial  condition.  We cannot  reasonably  predict  NetWorker's
remaining life for several reasons, including:

     -    The recent emergence of our 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.


     IF WE DO NOT RESPOND TO RAPID  TECHNOLOGICAL  CHANGES OUR EXISTING PRODUCTS
COULD BECOME OBSOLETE.

     The markets  for our  products  are  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 our
existing  products  obsolete  and  unmarketable.  To be  successful,  we need 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 our customers.

We may:

     -    Fail to develop and market new products that respond to  technological
          changes or evolving industry standards; o Experience difficulties that
          could delay or prevent the successful  development,  introduction  and
          marketing of these new products; or

     -    Fail to develop new products that adequately meet the  requirements of
          the marketplace or achieve market acceptance

If so,  our  business,  operating  results  and  financial  condition  would  be
seriously harmed.

     As of December  31,  1998,  we had 193  employees  engaged in research  and
development,  which  represented  29% of our total  workforce.  If potential new
products  are  delayed  or do  not  achieve  market  acceptance,  our  business,
operating results and financial  condition would be seriously harmed. We plan to
introduce and market  several  potential new products in the next twelve months.
Some of our competitors currently offer certain of these potential new products.
Such potential new products are subject to significant  technical  risks. We may
fail to introduce  such  potential  new products on a timely basis or at all. In
the past, we have experienced delays in the commencement of commercial shipments
of our new products.  Such delays caused customer frustrations and delay or loss
of product  revenue.  If  potential  new  products are delayed or do not achieve
market acceptance, our business, operating results and financial condition would
be seriously harmed.  In the past, we have also experienced  delays in purchases
of our  products  by  customers  anticipating  our launch of new  products.  Our
business, operating results and financial condition would be seriously harmed if
customers defer material orders in anticipation of new product introductions.


     WE RELY ON  ENTERPRISE  LICENSE  TRANSACTIONS  AND FAILURE TO  SUCCESSFULLY
MARKET OUR PRODUCTS IN ENTERPRISE-LEVEL TRANSACTIONS WOULD HARM OUR BUSINESS.

     In the past, we marketed our products at the  department-level of corporate
customers.  Within  the last two  years,  we began to pursue  larger  enterprise
license  transactions  with  corporate  customers.  We may fail to  complete  or
increase the number of such larger enterprise license transactions. Such failure
would seriously harm our business,  operating  results and financial  condition.
Our operating  results are  sensitive to the timing of such orders.  Such orders
are difficult to manage and predict, because:

     -    The sales cycle is typically  lengthy,  generally lasting three to six
          months, and varies substantially from transaction to transaction;

     -    They often include product license, service and support components;

     -    They typically involve significant technical evaluation and commitment
          of capital and other resources;  and o Customers'  internal procedures
          frequently cause delays in orders.  Such internal  procedures  include
          approval  of  large  capital   expenditures,   implementation  of  new
          technologies within their networks,  and testing new technologies that
          affect key operations.

Due to the large size of enterprise  transactions,  if orders  forecasted  for a
specific  transaction for a particular quarter are not realized in that quarter,
our operating results for that quarter may be seriously harmed.

     Historically,  we have not had a  separate  large  enterprise  or  national
accounts  sales force and only within the last eighteen  months have we begun to
develop direct sales groups focused on these larger accounts.  To succeed in the
national  accounts  market,  we will be required to continue to  transition  our
existing sales forces into enterprise level sales groups, and attract and retain
qualified personnel. Such personnel will require training about and knowledge of
our  products.  We  may  not be  successful  in  creating  the  necessary  sales
organization  or  in  attracting,   retaining  or  training  these  individuals.
Historically,  we have licensed our products at the departmental level.  Success
in the enterprise and national accounts market will require, among other things,
establishing  and continuing to develop  relationships  and contacts with senior
technology  officers at these accounts.  Our business,  financial  condition and
results  of  operations  would be  seriously  harmed if our  sales  force is not
successful in these efforts.


     WE RELY ON INDIRECT  SALES CHANNELS AND IF THESE INDIRECT SALES CHANNELS DO
NOT PERFORM ADEQUATELY, OUR REVENUES WOULD DECLINE.

     We  rely  significantly  on  our  distributors,   systems  integrators  and
resellers for the marketing and  distribution  of our products.  Our  agreements
with  resellers  are generally not exclusive and in many cases may be terminated
by either party without cause.  Many of these resellers carry product lines that
are competitive with our products.  These resellers may not give a high priority
to the  marketing  of our  products.  We may not be able  to  retain  any of our
current resellers or successfully recruit new resellers. Any such changes in our
distribution  channels could seriously harm our business,  operating results and
financial condition.

     Our strategy is also to increase the  proportion of our customers  licensed
through OEMs. We may fail to achieve this strategy.  We are currently investing,
and intend to  continue  to invest  resources  to  develop  this  channel.  Such
investments could seriously harm our operating  margins.  We depend on our 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. Our OEMs
may not effectively meet these technological challenges. These OEMs:

     -    Are not within our control;

     -    May  incorporate  the  technologies  of  other  companies  into  their
          products in addition to, or to the exclusion of, our technologies; and

     -    Are not obligated to purchase products from us. In addition,  our OEMs
          generally have exclusive  rights to our technology on their platforms,
          subject to certain minimum royalty obligations.

Our OEMs may not continue to carry our products.  The  inability to recruit,  or
the loss of, important OEMs could seriously harm our business, operating results
and financial condition.


     WE  DEPEND  ON   INTERNATIONAL   REVENUE  AND  THEREFORE  OUR  BUSINESS  IS
SUSCEPTIBLE TO NUMEROUS RISKS ASSOCIATED WITH INTERNATIONAL OPERATIONS.

     Our continued growth and  profitability  will require further  expansion of
our international  operations.  To successfully expand international operations,
we must:

     -    Establish additional international operations;

     -    Hire addition personnel; and

     -    Recruit additional international resellers.

These  efforts will  require  significant  management  attention  and  financial
resources and could seriously harm our operating margins.  If we fail to further
expand our international operations in a timely manner, our business,  operating
results and financial  condition could be seriously harmed. In addition,  we may
fail to maintain or increase  international market demand for our products.  Our
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 our
products more expensive and,  therefore,  potentially  less competitive in those
markets.  In some markets,  localization of our products is essential to achieve
market  penetration.  We may incur  substantial  costs and experience  delays in
localizing  our  products.  We may fail to  generate  significant  revenue  from
localized products.

     Additional  risks  inherent  in  our  international   business   activities
generally include:

     -    Significant  reliance on our  distributors  and other resellers who do
          not offer our products exclusively;

     -    Unexpected changes in regulatory requirements;

     -    Tariffs and other trade barriers;

     -    Lack of acceptance of localized products, if any, in other countries;

     -    Longer accounts receivable payment cycles;

     -    Difficulties in managing international operations;

     -    Potentially  adverse tax consequences,  including  restrictions on the
          repatriation of earnings;

     -    The burdens of complying  with a wide variety of  international  laws;
          and

     -    The risks related to the recent global economic turbulence and adverse
          economic circumstances in Asia.

The occurrence of such factors could seriously harm our international sales and,
consequently, our business, operating results and financial condition.


      IN ORDER TO  PROPERLY  MANAGE  OUR GROWTH  AND  EXPANSION,  WE MAY NEED TO
IMPROVE AND IMPLEMENT NEW SYSTEMS, PROCEDURES AND CONTROLS.

     We have  recently  experienced  a period of  significant  expansion  of our
operations.   Our  headcount   increased  from  303  at  December  31,  1996  to
approximately  738 at  February  28,  1999 and will  increase  further  upon the
integration of employees from our recent  acquisition of Intelliguard.  Also, we
expect our headcount to increase  upon the closing of the Full Time  acquisition
expected to be completed by the end of April of 1999. This growth has placed and
will place a significant  strain upon our management  systems and resources.  We
plan to expand the geographic  scope of our customer base and  operations.  This
expansion has resulted and will continue to result in substantial demands on our
management resources.

     From time to time, we receive customer  complaints about the timeliness and
accuracy of customer support. We plan to add customer support personnel in order
to address current customer support needs. If we are not successful  hiring such
personnel,  our business,  operating  results and financial  condition  could be
seriously  harmed.  Our  ability to  compete  effectively  and to manage  future
expansion of our operations, if any, will require us to:

     -    Continue to improve our financial and management  controls,  reporting
          systems and procedures on a timely basis; and

     -    Expand, train and manage our employee work force.

     Our failure to do so could seriously harm our business,  operating  results
and financial condition.


     If We Do Not Successfully  Integrate Recent and Pending  Acquisitions,  Our
Business Would Be Harmed.

     We  expect  that  we will  face  numerous  challenges  in  integrating  the
operations of recently completed and pending acquisitions. On August 6, 1998, we
acquired Software Moguls, Inc. ("SMI"), a developer of advanced backup-retrieval
products for the Windows NT and UNIX environments. On April 1, 1999, we acquired
Intelliguard Software,  Inc., a developer of standards-based  storage management
solutions for storage area networks.

     On October 25,  1998,  we entered  into a  definitive  agreement to acquire
Qualix Group,  Inc. (dba FullTime  Software,  Inc.), a developer of distributed,
enterprise-wide,  cross-platform,  adaptive computing solutions. The acquisition
is  expected  to be  completed  by the end of  April  of  1999,  subject  to the
satisfaction of standard closing conditions, including shareholder approval.

     We  may  make  additional  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;

     -    Substantial transaction costs; and

     -    Substantial  additional costs charged to operations as a result of the
          failure to consummate acquisitions.

     Some  of the  products  we  acquired  may  require  significant  additional
development  before they can be marketed and may not generate revenues at levels
we  anticipate.  Moreover,  any  future  acquisitions  may  result  in  dilutive
issuances of our 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  factors  could  seriously  harm our
business, financial condition and results of operations.


     IF THE  STORAGE  MANAGEMENT  MARKET DOES NOT  CONTINUE  TO GROW,  OUR SALES
OPPORTUNITIES WOULD BE LIMITED.

     All of our  business  is in the  storage  management  market.  The  storage
management  market is still an emerging market and may not continue to grow. Our
future  financial  performance  will depend in large part on continued growth in
the  number  of  organizations  adopting  company-wide  storage  and  management
solutions for their client/server computing  environments.  If this market fails
to grow or  grows  more  slowly  than we  currently  anticipate,  our  business,
operating results and financial conditions would be seriously harmed.


     WE RELY ON OUR KEY PERSONNEL.

     Our  future  performance  depends  on the  continued  service  of  our  key
technical and senior management  personnel.  None of our key technical or senior
management  personnel  is  bound  by an  employment  agreement.  The loss of the
services of one or more of our officers or other key employees  could  seriously
harm our business, operating results and financial condition. Our future success
also depends on our  continuing  ability to attract and retain highly  qualified
technical and managerial  personnel.  Competition for such personnel is intense,
and we may fail to retain our key technical and managerial employees or attract,
assimilate or retain other highly qualified  technical and managerial  personnel
in the future.


     PROTECTION OF OUR INTELLECTUAL PROPERTY IS LIMITED.

Our success  depends  significantly  upon protecting our  intellectual  property
which  are our most  important  assets.  Despite  our  efforts  to  protect  our
proprietary  rights,  unauthorized  parties may  attempt to copy  aspects of our
products  or to  obtain  and use  information  that we  regard  as  proprietary.
Policing unauthorized use of our products is difficult,  and software piracy can
be expected to be a persistent problem. In licensing our products, other than in
enterprise license transactions,  we rely on "shrink wrap" licenses that are not
signed  by  licensees.  Such  licenses  may be  unenforceable  under the laws of
certain  jurisdictions.  In  addition,  the laws of some other  countries do not
protect  our  proprietary  rights  to as great an  extent  as do the laws of the
United  States.  Our  means of  protecting  our  proprietary  rights  may not be
adequate.   Our  competitors  may  independently   develop  similar  technology,
duplicate  our  products  or  design  around  patents  issued  to  us  or  other
intellectual property rights of ours.

     From time to time, we have  received  claims that we are  infringing  third
parties'  intellectual  property  rights.  In the  future,  we may be subject to
claims of  infringement  by third  parties  with  respect  to  current or future
products,  trademarks  or other  proprietary  rights.  We expect  that  software
product  developers will  increasingly be subject to infringement  claims as the
number  of  products  and  competitors  in our  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 us to enter into royalty or
licensing   agreements  with  third  parties.   If  such  royalty  or  licensing
agreements,  if  required,  are not  available  on terms  acceptable  to us, our
business, operating results and financial condition could be seriously harmed.


     DEFECTS IN OUR PRODUCTS WOULD HARM OUR BUSINESS.

     Our license  agreements  with our customers  typically  contain  provisions
designed to limit exposure to potential  product  liability claims. In licensing
our products, other than in enterprise license transactions,  we rely on "shrink
wrap"  licenses  that  are  not  signed  by  licensees.  Such  licenses  may  be
unenforceable under the laws of certain jurisdictions.  As a result of these and
other  factors,  limitation  of  liability  provisions  contained in our license
agreements  may not be  effective.  Our  products  can be used  to  manage  data
critical  to  organizations.  As a result,  the sale and  support of products we
offer may entail the risk of product  liability  claims.  A  successful  product
liability claim brought against us could seriously harm our business,  operating
results and financial condition.


     YEAR 2000 ISSUES COULD AFFECT OUR BUSINESS.

     Many currently  installed  computer  systems and software  products include
coding 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.  Our computer  systems and/or  software 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 exits the software industry concerning
the potential effects associated with such problems.

     We have conducted Year 2000 compliance  reviews for current versions of our
products. The reviews include:

     -    Assessment;

     -    Implementation;

     -    Validation testing; and

     -    Contingency planning.

     We respond to customer concerns about our products on a case-by-case basis.
Although we believe our software products are Year 2000 compliant,  our software
products may not contain all the  necessary  software  routines and programs for
the accurate  calculation,  display,  storage and manipulation of data involving
dates.  Failure of our software  products to contain all the necessary  software
routines  and  programs  for the  accurate  calculation,  display,  storage  and
manipulation  of  data  involving  dates  would  seriously  harm  our  business,
operating results and financial condition.

     To the extent  information is publicly  available we have assessed the Year
2000 compliance status of our customers. If our current or future customers fail
to achieve Year 2000 compliance or we divert technology  expenditures to address
Year 2000 compliance problems, our business, results of operations, or financial
condition would be seriously harmed.

     We have tested  software  obtained from third parties that is  incorporated
into our products,  and seek assurances  from vendors that licensed  software is
Year 2000 compliant. Despite such testing and assurances,  products incorporated
into our 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 our reputation; or

     -    Increased service and warranty costs.

The  occurrence  of any of the  foregoing  could  seriously  harm our  business,
operating results, or the financial condition.

     We believe the  software and  hardware we use  internally  comply with Year
2000 requirements. During 1998, we replaced or upgraded much of our internal use
hardware and software. In addition, we are not aware of any material operational
issues or costs associated with preparing our internal use software and hardware
for the  Year  2000.  However,  serious,  unanticipated  negative  consequences,
including  material  costs  caused  by  undetected  errors  or  defects  in  the
technology used in our internal  systems may occur. The occurrence of any of the
foregoing  could  seriously  harm our business,  operating  results or financial
condition.

     We have funded our Year 2000  compliance  review from  operating cash flows
and have not  separately  accounted  for these costs in the past.  We will incur
additional amounts related to the Year 2000 compliance review including:

     -    Administrative personnel to manage the review; and

     -    Outside  contractors to provide technical advice and technical support
          for our products, product engineering, and customer satisfaction.

     We are currently developing  contingency plans to be implemented as part of
our efforts to identify and correct Year 2000 problems. Depending on the systems
affected, these plans include:

     -    Accelerated replacement of affected equipment or software;

     -    Short to medium-term use of backup equipment and software;

     -    Increased work hours for our personnel or use of contract personnel to
          correct (on an accelerated schedule) any Year 2000 problems that arise
          or to provide manual workarounds for information systems; and

     -    Other similar approaches

If we are  required  to  implement  any of  these  contingency  plans,  it could
seriously  harm our business,  financial  condition and operating  results.  Our
ability to  achieve  Year 2000  compliance  and the level of  incremental  costs
associated therewith, could be seriously impacted by, among other things:

     -    The availability and cost of programming and testing resources;

     -    Vendors' ability to modify proprietary software; and

     -    Unanticipated problems identified in the ongoing compliance review.



<PAGE>


                          FORWARD - LOOKING STATEMENTS


         This  prospectus,  including  the documents  incorporated  by reference
herein,   contains   forward-looking   statements   that   involve   risks   and
uncertainties.  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  statements  regarding the Legato's  expectations,  beliefs,
intentions or strategies  regarding the future. All  forward-looking  statements
included in this  document are based on  information  available to the Legato on
the  date  hereof,   and  Legato  assumes  no  obligation  to  update  any  such
forward-looking statements. Legato'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." You should  carefully  consider the risks described in the "Risk
Factors"  section,  in  addition  to the  other  information  set  forth in this
prospectus and  incorporated  by reference  herein,  before making an investment
decision.


                                 USE OF PROCEEDS


         All net  proceeds  from the sale of Legato  common stock will go to the
stockholders  who offer and sell  their  shares.  Accordingly,  Legato  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 April 1,
1999,  with respect to the number of shares of common stock owned by the selling
stockholders  named  below  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.  Based  upon  38,082,575  shares of common
stock  outstanding  on March  29,  1999,  George B.  Wilson is the only  selling
stockholder that owns more than 1% of the outstanding stock of Legato. See "Plan
of Distribution."


         The shares being offered by the selling stockholders were acquired from
Legato in our  acquisition  of  Intelliguard  Software,  Inc. and O.R.P.,  Inc.,
pursuant to a stock purchase agreement signed on January 27, 1999. The shares of
common  stock  were  issued  pursuant  to an  exemption  from  the  registration
requirements  of the  Securities  Act. The selling  stockholders  represented to
Legato that they were  acquiring the shares for  investment  and with no present
intention of distributing the shares.

         Legato has filed with the SEC, 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 on The Nasdaq  National  Market or in
privately-negotiated  transactions. Legato has agreed to use its best 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 Selling      Number of                       Number of Shares     Number of
Stockholders                     Shares          Percent         Being Offered        Shares        Percent
- ------------                     ------          -------         -------------        ------        -------
<S>                                <C>              <C>                <C>              <C>            <C>
George B. Wilson                  450,000 (1)       1.2                450,000             0             -
1261 Farm Road
Berwyn, PA 19312

Roger K. Stager                   135,000 (2)        *                 135,000             0             -
683 Newbury Street
Livermore, CA 94550

Donald Trimmer                    135,000 (2)        *                 135,000             0             -
                                  -------            -                 -------             -             -
1687 Quail Court
Livermore, CA 94550

TOTAL                             720,000           1.9                720,000             0             -
                                  =======           ===                =======             =             =
<FN>

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


(1)  Includes  56,250  shares of common  stock that are  subject to an escrow in
     favor of Legato to satisfy any breaches of  representations  and warranties
     made by  Intelliguard  or certain of its  stockholders  in connection  with
     Legato's  acquisition  of  Intelliguard.  Such escrow will expire  April 1,
     2000.

(2)  Includes  16,875  shares of common  stock that are  subject to an escrow in
     favor of Legato to satisfy any breaches of  representations  and warranties
     made by  Intelliguard  or certain of its  stockholders  in connection  with
     Legato's  acquisition  of  Intelliguard.  Such escrow will expire  April 1,
     2000.
</FN>
</TABLE>



<PAGE>


                              PLAN OF DISTRIBUTION

         The shares  offered hereby may be sold by the selling  stockholders  at
various times in one or more of the following transactions:

     -    In the over-the-counter market;

     -    On The Nasdaq National Market;

     -    In privately negotiated transactions; or

     -    In a combination of any of the above transactions.

         The  selling  stockholders  may sell  their  shares  at  market  prices
prevailing at the time of the sale, at prices related to such prevailing  market
prices, at negotiated prices or at fixed prices.


         The selling  stockholders may use  broker-dealers to sell their shares.
If this happens,  broker-dealers  will either  receive  discounts or commissions
from the selling stockholders,  or they will receive commissions from purchasers
of shares for whom they acted as agents.

         For the purposes of this  Prospectus,  the term "selling  stockholders"
shall include donees,  pledgees and other assignees selling shares received from
a selling  stockholder  named  herein as well as any donees,  pledgees and other
assignees selling shares received from such donees, pledgees or assignees.


                                  LEGAL MATTERS


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

                                     EXPERTS


         The consolidated  balance sheets of Legato as of December 31, 1998, and
1997  and the  consolidated  statements  of  income  and  comprehensive  income,
stockholders'  equity,  and cash  flows for each of the years in the three  year
period ended  December 31, 1998  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 June 30, 1997 and for each of the three years in the period  ended June
30, 1998 are  incorporated  by reference in this prospectus from Legato Systems,
Inc.'s  registration  statement  No.  333-74433 on Form S-4.  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.

                       WHERE YOU CAN FIND MORE INFORMATION

         We file annual,  quarterly and special  reports,  proxy  statements and
other  information  with the SEC.  You may read and copy any document we file at
the SEC's public  reference  rooms in  Washington,  D.C., New York, New York and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information
on the public  reference rooms. Our SEC filings are also available to the public
from the SEC's website at "http://www.sec.gov."

         The SEC allows us to "incorporate by reference" the information we file
with them,  which means that we can  disclose  important  information  to you by
referring you to those documents.  The information  incorporated by reference is
considered to be part of this  prospectus,  and  information  that we file later
with the SEC will  automatically  update  and  supersede  this  information.  We
incorporate  by reference the documents  listed below and any future  filings we
will make with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Securities
Exchange Act of 1934:

         1.       Annual  Report on Form 10-K for the year  ended  December  31,
                  1998,  filed on  February  10,  1999,  as amended by  Legato's
                  amendment  to the Annual  Report on Form 10-K/A for the fiscal
                  year ended December 31, 1998, filed on March 4, 1999;

         2.       The information from the section entitled "Unaudited Pro Forma
                  Combined   Condensed   Consolidated   Financial   Statements",
                  appearing on pages  71-75,  and the section  entitled  "Qualix
                  Group, Inc. Consolidated Financial  Statements",  appearing on
                  pages F-1 - F-23, of Legato's  registration  statement on Form
                  S-4 filed on March 16, 1999 (File No.
                  333-74433);

         3.       The  description of Legato capital stock contained in Legato's
                  registration  statement  on Form  8-A,  dated  May  24,  1995,
                  including any amendment or report  updating such  description;
                  and

         4.       The  description of Legato capital stock contained in Legato's
                  registration  statement  on Form  8-A,  dated  May  23,  1997,
                  including any amendment or report updating such description

         You may request a copy of these  filings,  at no cost, by calling us at
(650) 812-6000 or by writing to us at the following address:

                              Legato Systems, Inc.
                                3210 Porter Drive
                               Palo Alto, CA 94304
                            Attn: Investor Relations






<PAGE>

This  prospectus is part of a registration  statement we filed with the SEC. You
should  rely  only  on the  information  or  representations  provided  in  this
prospectus. We have authorized no one to provide you with different information.
We are not making an offer of these  securities  in any state where the offer is
not permitted.  You should not assume that the information in this prospectus is
accurate as of any date other than the date on the front of the document.






                                 720,000 Shares







                              LEGATO SYSTEMS, INC.






                                  Common Stock




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


                                 April __, 1999

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



<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..................................          $10,000
        Legal Fees and Expenses..............................................................           10,000
        Accounting Fees and Expenses.........................................................            5,000
        Transfer Agent and Registrar Fees....................................................           14,500
        Miscellaneous........................................................................            4,500
                                                                                                     ---------
             Total...........................................................................          $44,000
                                                                                                       =======
</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,  Legato's  Certificate  of  Incorporation
("Certificate")  contains a provision  to limit the  personal  liability  of the
directors of Legato for violations of their  fiduciary duty as a director.  This
provision eliminates each director's liability to Legato or its stockholders for
monetary  damages except (i) for any breach of the director's duty of loyalty to
the Legato 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  Legato's  Certificate  and  Article  VII,  Section 6 of
Legato's  Bylaws  provide for  indemnification  of the officers and directors of
Legato to the fullest extent permitted by applicable law.

         Legato 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*          Stock  Purchase  Agreement,  dated January 27, 1999, by and among Legato  Systems,  Inc.,  Intelliguard
              Software, Inc. 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.
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 (reference is made to the signature page of this Registrant Statement).
- -------------------

<FN>
*As 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 Form8-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 2nd day of
April, 1999.

                                             Legato systems, inc.


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


                                POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears below constitutes and appoints jointly and severally,  Louis C. Cole and
Stephen C. Wise, and each of them, the lawful  attorneys and agents,  with power
and  authority  to do any and all acts and  things  and to  execute  any and all
instruments  which said  attorneys  and agents  determine  may be  necessary  or
advisable or required to enable Legato Systems, Inc., a Delaware corporation, to
comply with the Securities  Act, and any rules or regulations or requirements of
the  Securities  and Exchange  Commission in connection  with this  Registration
Statement. Without limiting the generality of the foregoing power and authority,
the powers  granted  include  the power and  authority  to sign the names of the
undersigned  officers and directors in the  capacities  indicated  below to this
Registration  Statement,  to any  and all  amendments,  both  pre-effective  and
post-effective,  and supplements to this Registration Statement,  and to any and
all  instruments  or  documents  filed as part of or in  conjunction  with  this
Registration  Statement or amendments or  supplements  thereof,  and each of the
undersigned  hereby  ratifies and confirms all that said attorneys and agents or
any of them  shall  do or  cause  to be done by  virtue  hereof.  This  Power of
Attorney may be signed in several counterparts.


         IN WITNESS WHEREOF,  each of the undersigned has executed this Power of
Attorney as of the date indicated.


         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           April 12, 1999
- ----------------------------------------
Louis C. Cole                                 Executive Officer (Principal Executive
                                              Officer)

/s/  Stephen C. Wise*                         Senior Vice President, Finance and                   April 12, 1999
- ----------------------------------------
Stephen C. Wise                               Administration and Chief Financial Officer
                                              (Principal Financial and Accounting Officer)

/s/  Eric A. Benhamou*                        Director                                             April 12, 1999
- ----------------------------------------
Eric A. Benhamou

/s/  H. Raymond Bingham*                      Director                                             April 12, 1999
- ----------------------------------------
H. Raymond Bingham

/s/  Kevin A. Fong*                           Director                                             April 12, 1999
- ----------------------------------------
Kevin A. Fong

/s/  David N. Strohm*                         Director                                             April 12, 1999
- ----------------------------------------
David N. Strohm

/s/  Phillip E. White*                        Director                                             April 12, 1999
- ----------------------------------------

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




<PAGE>


                                  Exhibit Index


<TABLE>

Exhibit
Number        Description
<S>           <C>
2.1*          Stock  Purchase  Agreement,  dated January 27, 1999, by and among Legato  Systems,  Inc.,  Intelliguard
              Software, Inc. 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.
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 (reference is made to the signature page of this Registrant Statement).
- -------------------

<FN>
*As 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 Form8-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
720,000 shares of its common  shares,  of our reports dated January 18, 1999, on
our audits of the  consolidated  financial  statements  and financial  statement
schedule  of the Company as of  December  31,  1998 and 1997,  and for the years
ended  December  31,  1998,  1997 and 1996 which  reports  are  included  in the
Company's  1998 Annual  Report on Form  10-K/A,  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
April 12, 1999



<PAGE>


                                                                    EXHIBIT 23.3

                        CONSENT OF DELOITTE & TOUCHE LLP

     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
registration statement No. 333-74433 on Form S-4 of Legato Systems, Inc. We also
consent to the  reference to us under the heading  "Experts" in the  prospectus,
which is part of this Registration Statement.



/s/ DELOITTE & TOUCHE LLP

San Jose, California
April 12, 1999


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