WIND RIVER SYSTEMS INC
S-3/A, 1998-10-29
COMPUTER PROGRAMMING SERVICES
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<PAGE>
   
        As filed with the Securities and Exchange Commission on October 29, 1998
                                                      Registration No. 333-59311
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                          
                         SECURITIES AND EXCHANGE COMMISSION
                               Washington, D.C. 20549

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

   
                           POST-EFFECTIVE AMENDMENT NO. 1
                                         TO
                                      FORM S-3
                               REGISTRATION STATEMENT
                                       UNDER
                             THE SECURITIES ACT OF 1933  
    

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

                              WIND RIVER SYSTEMS, INC.
               (Exact name of registrant as specified in its charter)
       DELAWARE                                             94-287339
(State of Incorporation)                (I.R.S. Employer Identification No.)
                                1010 ATLANTIC AVENUE
                                 ALAMEDA, CA 94501
                                   (510) 748-4100
     (Address, including zip code, and telephone number, including area code of
                     Registrant's principal executive offices)

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

                                 RICHARD W. KRABER
               VICE PRESIDENT OF FINANCE AND CHIEF FINANCIAL OFFICER
                              WIND RIVER SYSTEMS, INC.
                                1010 ATLANTIC AVENUE
                                 ALAMEDA, CA 94501
                                   (510) 748-4100
            (Name, address, including zip code, and telephone number, 
                    including area code,of agent for service)

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

   
                                     Copies to:
                                ANDREA VACHSS, ESQ.
                                 COOLEY GODWARD LLP
                               FIVE PALO ALTO SQUARE
                                3000 EL CAMINO REAL
                                PALO ALTO, CA 94306
                                   (650) 843-5000
    

         Approximate date of commencement of proposed sale to the public:  
     FROM TIME TO TIME AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT.

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     Proposed Maximum
       Title of Class of                                          Offering            Aggregate            Amount of
  Securities to be Registered    Amount to be Registered(1)    Price per Share      Offering Price     Registration Fee(1)
- --------------------------------------------------------------------------------------------------------------------------
<S>                              <C>                          <C>                  <C>                 <C>
    Common Stock, par value              226,211                                                               $0
        $.001 per share
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>
    

   
(1)  Shares were registered on Form S-3 (No. 333-59311) filed with the 
Commission on July 17, 1998.  The filing fee of $2,230 was paid at that time.
    

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

     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>
   
    

PROSPECTUS

                                   226,211 SHARES
                                          
                              WIND RIVER SYSTEMS, INC.
                                          
                                   COMMON STOCK 

   
     This Prospectus covers the resale from time to time by the holders (the 
"Selling Stockholders") of up to 226,211 shares (the "Shares") of Common 
Stock, par value $.001 ("Common Stock"), of Wind River Systems, Inc., a 
Delaware corporation ("Wind River" or the "Company"). The Shares were issued 
on May 18, 1998 in connection with the Company's acquisition of Zinc Software 
Incorporated, in a transaction exempt from registration under the Securities 
Act of 1933, as amended (the "Securities Act").
    

     The Selling Stockholders, directly or through agents, broker-dealers or 
underwriters, may sell the Shares offered hereby from time to time on terms 
to be determined at the time of sale in transactions on the Nasdaq National 
Market or in privately negotiated transactions or in 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 agents or to whom they sell as 
principal or both (which compensation to a particular broker-dealer may be in 
excess of customary commissions). The Company will not receive any proceeds 
from the sale of Common Stock by the Selling Stockholders. The aggregate 
proceeds to the Selling Stockholders from the Common Stock will be the 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 "Selling Stockholders" and "Plan 
of Distribution."

   
     The Common Stock is quoted on the Nasdaq National Market under the 
symbol "WIND." The last reported sale price of the Common Stock on the Nasdaq 
National Market on October 28, 1998 was $41.13 per share.
    

     FOR A DISCUSSION OF CERTAIN FACTORS THAT SHOULD BE CONSIDERED BY INVESTORS
     IN EVALUATING AN INVESTMENT IN THE SECURITIES OFFERED HEREBY, SEE "RISK
     FACTORS" COMMENCING ON PAGE 3.

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

THE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND 
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES 
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED ON THE 
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY 
IS A CRIMINAL OFFENSE.

   
     Expenses of preparing and filing the Registration Statement of which 
this Prospectus is a part and all post-effective amendments will be borne by 
the Company. 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 approximately $32,000.  The 
Company has agreed to indemnify the Selling Stockholders, and the Selling 
Stockholders have agreed to indemnify the Company, against certain 
liabilities, including liabilities under the Securities Act.
    

     The Selling Stockholders and any agents, broker-dealers or underwriters 
that participate in the distribution of the Common Stock may be deemed to be 
"underwriters" within the meaning of the Securities Act, and any commission 
received by them and any profit on the resale of the Common Stock may be 
deemed to be underwriting discounts or commissions under the Securities Act.

   
October 29, 1998
    



<PAGE>

                               AVAILABLE INFORMATION

     The Company is subject to the informational requirements of the 
Securities Exchange Act of 1934, as amended (the "Exchange 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 can be inspected and copied at the 
public reference facilities maintained by the Commission at 450 Fifth Street, 
N.W., Judiciary Plaza, Room 1024, Washington, D.C. 20549, and at the 
Commission's Regional Offices located at Northwest Atrium Center, 500 West 
Madison Street, Suite 1400, Chicago, Illinois 60661; and Seven World Trade 
Center, 13th Floor, New York, New York 10048. Copies of such material can be 
obtained at prescribed rates from the Public Reference Section of the 
Commission at 450 Fifth Street, N.W., Judiciary Plaza, Washington, D.C. 
20549. Reports, proxy statements and other information filed electronically 
by the Company with the Commission are available at the Commission's 
worldwide web site at http://www.sec.gov. The Company's Common Stock is 
listed for trading on the Nasdaq National Market and reports, proxy 
statements and other information concerning the Company may also be inspected 
at the offices of the National Association of Securities Dealers, 1735 K 
Street, N.W., Washington, D.C. 20006.

                               ADDITIONAL INFORMATION

     A registration statement on Form S-3 with respect to the Shares offered 
hereby (together with all amendments, exhibits and schedules thereto, the 
"Registration Statement") has been filed with the Commission under the 
Securities Act. This Prospectus does not contain all of the information 
contained in such Registration Statement, certain portions of which have been 
omitted pursuant to the rules and regulations of the Commission. For further 
information with respect to the Company and the Shares offered hereby, 
reference is made to the Registration Statement. Statements contained in this 
Prospectus regarding the contents of any contract or any other documents are 
not necessarily complete and, in each instance, reference is hereby made to 
the copy of such contract or document filed as an exhibit to the Registration 
Statement. The Registration Statement may be inspected without charge at the 
Securities and Exchange Commission's principal office in Washington, D.C., 
and copies of all or any part thereof may be obtained from the Public 
Reference Section, Securities and Exchange Commission, Washington, D.C. 
20549, upon payment of the prescribed fees.

                  INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents have been filed with the Commission and are 
incorporated herein by reference: 

     1.   The Company's Annual Report on Form 10-K for the fiscal year ended
          January 31, 1998; 
     
   
     2.   The Company's Quarterly Reports on Form 10-Q for the quarters ended
          April 30 and July 31, 1998; and
    
          
   
     3.   The description of the Company's Common Stock set forth in its
          Registration Statement on Form 8-A filed with the Commission on March
          12, 1993. 
    
     
     All documents filed by the Company pursuant to Section 13(a), 13(c), 14 
or 15(d) of the Exchange Act after the date of this Prospectus and prior to 
the termination of the offering shall be deemed to be incorporated by 
reference herein and to be a part hereof from the date of filing 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 or is deemed 
to be incorporated by reference herein modifies or supersedes such statement. 
Any statement so modified or superseded shall not be deemed, except as so 
modified or superseded, to constitute a part of this Prospectus.

     The Company will provide without charge to each person, including any 
beneficial owner, to whom this Prospectus is delivered, upon the request of 
such person, a copy of any or all of the documents incorporated herein by 
reference, other than exhibits to such documents (unless such exhibits are 
specifically incorporated by reference into such documents). Requests for 
such documents should be directed to Wind River Systems, Inc., Attention: 
Chief Financial Officer, 1010 Atlantic Avenue, Alameda, California 94501, 
telephone (510) 748-4100. 

                                       2

<PAGE>

                          FORWARD LOOKING STATEMENTS

     THIS PROSPECTUS CONTAINS FORWARD-LOOKING STATEMENTS THAT INVOLVE RISKS 
AND UNCERTAINTIES.  WHEN USED IN THIS PROSPECTUS, THE WORDS "ANTICIPATE," 
"BELIEVE," "ESTIMATE," AND "EXPECT" AND SIMILAR EXPRESSIONS AS THEY RELATE TO 
THE COMPANY OR ITS MANAGEMENT ARE INTENDED TO IDENTIFY SUCH FORWARD-LOOKING 
STATEMENTS.  THE COMPANY'S ACTUAL RESULTS, PERFORMANCE, OR ACHIEVEMENTS COULD 
DIFFER MATERIALLY FROM THE RESULTS EXPRESSED IN, OR IMPLIED BY, THESE 
FORWARD-LOOKING STATEMENTS. FACTORS THAT COULD CAUSE OR CONTRIBUTE TO SUCH 
DIFFERENCES INCLUDE THOSE DISCUSSED BELOW UNDER THE CAPTION "RISK FACTORS" 
AND IN THE DOCUMENTS INCORPORATED HEREIN BY REFERENCE.
                                          
                                    THE COMPANY

     Wind River Systems, Inc. ("Wind River" or the "Company") develops, 
markets and supports advanced software operating systems and development 
tools that allow customers to create complex, robust, real-time software 
applications for embedded computers. An embedded computer is a microprocessor 
that is incorporated into a larger device and is dedicated to responding to 
external events by performing specific tasks quickly, predictably and 
reliably. Some examples of such devices are telecommunications products such 
as PABX, routers, central office switches and call processing systems; office 
products such as fax machines, laser printers and photocopiers; vehicle 
anti-lock brakes and navigation systems; consumer products such as 
camcorders, video games and set-top boxes; medical instrumentation and 
imaging systems; industrial automation equipment such as robots; and 
aerospace devices such as NASA's Mars probe, Pathfinder. Wind River's 
flagship product, Tornado-TM-, enables customers to enhance product 
performance, standardize designs across projects, reduce research and 
development costs and shorten product development cycles. The Company's 
principal offices are located at 1010 Atlantic Avenue, Alameda, California 
94501 and its telephone number is (510) 748-4100. 

                                          
                                    RISK FACTORS

     AN INVESTMENT IN THE COMMON STOCK OFFERED HEREBY INVOLVES A HIGH DEGREE 
OF RISK.  IN ADDITION TO THE OTHER INFORMATION IN THIS PROSPECTUS, 
PROSPECTIVE INVESTORS SHOULD CAREFULLY CONSIDER THE FOLLOWING FACTORS IN 
EVALUATING AN INVESTMENT IN THE SECURITIES OFFERED HEREBY. 

FLUCTUATIONS IN OPERATING RESULTS

     The Company has experienced from time to time significant 
period-to-period fluctuations in revenues and operating results and 
anticipates that such fluctuations will occur in the future. These 
fluctuations may be attributable to a number of factors, including the volume 
and timing of orders received during the quarter, the timing and acceptance 
of new products and product enhancements by the Company or its competitors, 
unanticipated sales and buyouts of run-time licenses, stages of product life 
cycles, purchasing patterns of customers and distributors, market acceptance 
of products sold by the Company's customers, competitive conditions in the 
industry, business cycles affecting the markets in which the Company's 
products are sold, extraordinary events, such as acquisitions, including 
related charges, and economic conditions generally or in specific geographic 
areas. The future operating results of the Company may fluctuate as a result 
of these and other factors, including the Company's ability to continue to 
develop innovative and competitive products.  In addition, the Company 
generally does not enter into long-term agreements with its customers, and 
the timing of license fees is difficult to predict. The procurement process 
of the Company's customers is often several months or longer from initial 
inquiry to order and may involve competing considerations. Further, as 
licensing of the Company's products increasingly becomes a more strategic 
decision made at higher management levels, there can be no assurance that 
sales cycles for the Company's product will not lengthen. Product revenue in 
any quarter depends primarily on the volume and timing of orders received in 
that quarter. The Company has at times recognized a substantial portion of 
its total revenue from sales booked and shipped in the latter part of the 
quarter; thus, the magnitude of quarterly fluctuations may not become evident 
until late in a particular quarter. Because the Company's staffing and 
operating expenses are based on anticipated total revenue levels, and a high 
percentage of the Company's costs are fixed in the short term, small 
variations between anticipated orders and actual orders, as well as 
non-recurring or large orders, could cause disproportionate variations in the 
Company's operating results from quarter to quarter. Revenues also are 
typically higher in the fourth quarter than in other quarters of the fiscal 
year, which ends on January 31, primarily as a result of purchases by 
customers 


                                       3


<PAGE>

prior to the calendar year end, as well as by customers who purchase at the 
commencement of a new calendar year. These trends are expected to continue.

     Because the software industry is intensely competitive, software vendors 
have from time to time experienced price erosion on their products. As is 
typical in the software industry, the Company's fixed costs as a percentage 
of revenues are high, and significant price erosion could have a material 
adverse effect on the Company's revenues and operating results.  A number of 
additional factors may in the future cause the Company's revenues and 
operating results to vary significantly from period to period. These factors 
include: software "bugs" or other product quality problems; changes in 
operating expenses; changes in Company strategy; personnel changes; foreign 
currency exchange rates; and mix of products sold. Although the Company has 
been profitable for the last several years on an annual basis, there can be 
no assurance that the Company will be able to continue its growth in revenue 
or sustain its profitability on a quarterly or annual basis. Due to all of 
the foregoing factors, the Company believes that period-to-period comparisons 
of its results of operations are not necessarily meaningful and should not be 
relied upon as an indication of future performance. It is possible that, in 
some future quarters, the Company's operating results will be below the 
expectations of stock market analysts and investors. In such event, the price 
of the Common Stock could be materially and adversely affected.

RELIANCE ON CORE FAMILY OF PRODUCTS

     Revenue from sales of the Tornado-TM- and VxWorks-Registered 
Trademark- family of products and services accounted for a significant 
majority of the Company's revenues in the fiscal year ended January 31, 1998, 
and the three months ended April 30, 1998, respectively. The Company's future 
results depend heavily on continued market acceptance of these products in 
the Company's current markets and successful application in new markets.  Any 
factor adversely affecting the market for the Tornado and VxWorks family of 
products and services could have a material adverse affect on the Company's 
business, financial condition and results of operations. The Company 
typically charges a one-time fee for a development license and a run-time 
license fee for each copy of the Company's operating system embedded in the 
customer's products. A key component of the Company's strategy is to increase 
revenue through run-time license fees. Any increase in the percentage of 
revenues attributable to run-time licenses will depend on the Company's 
successful negotiation of run-time license agreements and on the successful 
commercialization by the Company's customers of the underlying products. To 
the extent that such customers are not successful, the Company may not be 
able to meet its objectives, and its business, financial condition and 
results of operations could be materially and adversely affected.

COMPETITION

     The embedded real-time software industry is highly competitive and is 
characterized by rapidly advancing technology.  In order to maintain or 
improve its position in the industry, the Company must continue to enhance 
its current products and rapidly develop new products and product extensions. 
The Company believes that its principal competition comes from companies that 
develop real-time embedded software development systems in-house rather than 
purchasing such systems from independent software vendors such as the 
Company. Many of these organizations have substantial internal programming 
resources with the capability to develop specific products for their needs. 
The Company also competes with other independent software vendors, including 
Integrated Systems, Inc., Mentor Graphics, Inc. (through its acquisition of 
Microtec/Ready Systems), Microware Systems Corporation, and Microsoft 
Corporation. In addition, hardware or other software vendors could seek to 
expand their product offerings by designing and selling products that 
directly compete with or adversely affect sales of the Company's products.  
Many of the Company's existing and potential competitors have substantially 
greater financial, technical, marketing and sales 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. Furthermore, 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, the Company is aware of ongoing efforts by competitors to 
emulate the performance and features of the Company's products, and there can 
be no assurance that competitors will not develop equivalent or superior 
technology to that of the Company. Because a substantial percentage of the 
Company's revenues has been derived from sales of the Tornado and VxWorks 
family of products and services, the effects of competition could be more 
adverse than would be the case if the Company had a broader product offering. 
In addition, competitive pressures could cause the Company to reduce the 
prices of its products, which would result in reduced profit margins. There 


                                       4


<PAGE>

can be no assurance that the Company will be able to compete effectively 
against its current and future competitors. If the Company is unable to 
compete successfully, its business, financial condition and results of 
operations would be materially and adversely affected.

RISKS ASSOCIATED WITH NEW AND CHANGING MARKETS

     The Company is continuously engaged in product development for new or 
changing markets.  In particular, the Company has invested significant time 
and effort, together with a consortium of industry participants, in the 
development of I2O, a new specification that is intended to create an open 
standard set of interface specifications for high performance I/O systems. 
The specification is intended to be used by system, network and peripheral 
interface card and operating systems vendors to simplify the task of building 
and maintaining high-performance I/O subsystems. The Company also has 
developed IxWorks, a real-time operating system for use in conjunction with 
the I2O specification. The success of the I2O specification and the IxWorks 
product line depends heavily on its adoption by a broad segment of the 
industry. The Company also has expended, and continues to expend, substantial 
time and financial resources to develop embedded operating software and 
development tools for Internet applications. The commercial Internet market 
has only recently begun to develop, is rapidly changing and is characterized 
by an increasing number of new entrants with competitive products. Moreover, 
there is an increasing number of new Internet protocols to which the 
Company's products must be ported. It is unclear which of these competing 
protocols ultimately will achieve market acceptance. If the protocols upon 
which the Company's Internet products are based ultimately fail to be widely 
adopted, the Company's business, financial condition and results of 
operations may be materially and adversely affected. It is difficult to 
predict with any assurance whether demand for any of these products will 
develop or increase in the future. If these markets, or any other new market 
targeted by the Company in the future, fail to develop, develop more slowly 
than anticipated or become saturated with competitors, if the Company's 
products are not developed in a timely manner, or if the Company's products 
and services do not achieve or sustain market acceptance, the Company's 
business, financial condition and results of operations would be materially 
and adversely affected.

RAPID TECHNOLOGICAL CHANGE; DEPENDENCE ON NEW PRODUCTS

     The embedded real-time software industry faces a fragmented market 
characterized by ongoing technological developments, evolving industry 
standards and rapid changes in customer requirements. 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 success depends and will continue to depend upon 
its ability to continue to develop and introduce in a timely manner new 
products, including new releases, applications and enhancements, that take 
advantage of technological advances, to identify and adhere to emerging 
standards, to continue to improve the functionality of its Tornado 
development environment and the scalability and functionality of the VxWorks 
operating system, to offer its products across a spectrum of microprocessor 
families used in the embedded systems market and to respond promptly to 
customers' requirements. The Company has from time to time experienced delays 
in the development of new products and the enhancement of existing products.  
Such delays are commonplace in the software industry.  There can be no 
assurance that the Company will be successful in developing and marketing, on 
a timely basis or at all, competitive products, product enhancements and new 
products that respond to technological change, changes in customer 
requirements and emerging industry standards, or that the Company's enhanced 
or new products will adequately address the changing needs of the 
marketplace. The inability of the Company, due to resource constraints or 
technological or other reasons, to develop and introduce new products or 
product enhancements in a timely manner could have a material adverse effect 
on the Company's business, financial condition or results of operations.

     From time to time, the Company or its competitors may announce new 
products, capabilities or technologies that have the potential to replace or 
shorten the life cycles of the Company's existing products. There can be no 
assurance that announcements of currently planned or other new products by 
the Company or others will not cause customers to defer purchasing existing 
Company products. Any failure by the Company to anticipate or respond 
adequately to changing market conditions, or any significant delays in 
product development or introduction, would have a material adverse effect on 
the Company's business, financial condition and results of operations.


                                       5


<PAGE>

DEPENDENCE ON VME MARKET

     A significant amount of the Company's revenues historically has been 
derived from sales of systems built to the VME (versabus module eurocard) 
standard. These systems typically are used in high cost, low volume 
applications, including military, telecommunications, space and research 
applications. Although the Company believes that revenues from sales of 
products designed for embedded systems applications will account for an 
increasing percentage of the Company's revenues in the future, the Company 
expects revenues from the VME market to continue to be significant for the 
foreseeable future. Academic institutions and defense industry participants, 
which generate a significant portion of the Company's VME revenues, are 
dependent on government funding, the continued availability of which is 
uncertain. Although the Company's VME customers typically have received 
government funding prior to placing its product orders with Wind River, any 
unanticipated future termination of government funding of VME customers could 
have a material adverse effect on the Company's business, financial condition 
and results of operations.

MANAGEMENT OF GROWTH; DEPENDENCE ON KEY PERSONNEL; NEED FOR ADDITIONAL 
PERSONNEL

     The Company has experienced, and expects to continue to experience, 
significant growth in the number of employees, the scope and complexity of 
its operations and financial systems and the geographic area of its 
operations. The Company's continued success will depend significantly on its 
ability to integrate new operations and new personnel. The Company's ability 
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 efficiently. 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 on the Company's business, operating 
results and financial condition. In addition, the Company anticipates the 
need to relocate its management, product development, marketing, sales, 
customer support and operations functions to a new facility within the next 
year. During fiscal 1998, the Company purchased real property in the City of 
Alameda, California for $11.4 million. The property is being developed to 
construct the Company's new headquarters facility. There can be no assurance 
that any such relocation will be accomplished efficiently, or that the 
Company's operations will not be materially and adversely affected by such 
relocation. The Company's future performance depends to a significant degree 
upon the continued contributions of its key management, product development, 
marketing, sales, customer support and operations personnel, several of whom 
have joined the Company only recently. In addition, the Company believes its 
future success will depend in large part upon its ability to attract and 
retain highly-skilled managerial, product development, marketing, sales, 
customer support and operations personnel, many of whom are in great demand. 
Competition for such personnel is particularly intense in the San Francisco 
Bay Area, where the Company is headquartered, and there can be no assurance 
that the Company will be successful in attracting and retaining such 
personnel. The failure of the Company to attract, integrate and retain the 
necessary personnel could have a material adverse effect on the Company's 
business, financial condition and results of operations.

   
RISKS ASSOCIATED WITH INTERNATIONAL OPERATIONS

     During the fiscal years ended January 31, 1996, 1997 and 1998, the 
Company derived approximately 37%, 34%, and 29%, respectively, of its total 
revenue from sales outside of North America. The Company expects that 
international sales will continue to generate a significant percentage of its 
total revenue in the foreseeable future. The Company also expects to make 
substantial investments to expand further its international operations and to 
increase its direct sales force in Europe and Asia. There can be no assurance 
that these investments will result in commensurate increases in the Company's 
international sales. International operations are subject to certain risks, 
including foreign government regulation; more prevalent software piracy; 
longer payment cycles; unexpected changes in, or imposition of, regulatory 
requirements, tariffs, import and export restrictions and other barriers and 
restrictions; greater difficulty in accounts receivable collection; 
potentially adverse tax consequences including restrictions on repatriation 
of earnings; the burdens of complying with a variety of foreign laws; 
staffing and managing foreign operations; political and economic instability; 
changes in diplomatic and trade relationships; possible recessionary 
environments in economies outside the United States; and other factors beyond 
the control of the Company. There can be no assurance that such factors will 
not have a material adverse effect on the Company's international sales and 
consequently, the Company's business, operating results and financial 
condition. Sales by the Company's foreign subsidiaries are denominated in the 
local currency, and an increase in the relative value of the dollar against 
such currencies would reduce the Company's revenues in dollar terms or make 
the Company's products more expensive and, therefore, potentially less 
competitive in foreign markets. There can be no assurance that the Company's 
future results of operations will not be adversely affected by currency 
fluctuations. A portion of the Company's international revenues are derived 
from the Asia Pacific region including Japan. In recent months, economic 
uncertainty and related weakening of foreign currencies, particularly the 
Japanese yen, against the dollar, has occurred. As a result, the Company's 
future sales in this region may be adversely affected which could have a 
material adverse effect on the Company's business, results of operations and 
financial condition. The Company relies on distributors for sales of its 
products in certain foreign countries and, accordingly, is dependent on their 
ability to promote and support the Company's products and, in some cases, to 
translate them into foreign languages. The Company's international 
distributors generally offer products of several different companies, 
including in some cases products that are competitive with the Company's 
products, and such distributors are not subject to any minimum purchase or 
resale requirements. There can be no assurance that the Company's 
international distributors will continue to purchase the Company's products 
or provide them with adequate levels of support. Any changes in the 
relationships the Company has with its international distributors may have a 
material adverse effect on the Company's business, operating results and 
financial condition.
    

RISKS ASSOCIATED WITH ACQUISITIONS

     As part of its business strategy, the Company has recently completed the 
acquisitions of Objective Software Technology, Ltd. and Zinc Software 
Incorporated, has acquired equity interests in Emultek, Ltd. and 3Soft GmbH 
and has also licensed certain technologies from Network Computer, Inc. The 
Company expects to make additional acquisitions of, or significant 
investments in, businesses that offer complementary products, services and 
technologies. Any acquisitions or investments will be accompanied by the 
risks commonly encountered in acquisitions of businesses and technologies 
including, among other things, the difficulty of assimilating the operations 
and personnel of the acquired businesses, the potential disruption of the 
Company's ongoing business, the inability to integrate acquired technologies 
into new and existing products, the inability of management to maximize the 
financial and strategic position of the Company, the maintenance of uniform 
standards, controls, procedures and policies and the impairment of 
relationships with employees and customers as a result of any integration of 
new management personnel. These factors could have a material adverse effect 
on the Company's business, results of operations or financial condition. 
Consideration paid for future acquisitions, if any, could be in the form of 
cash, stock, debt, rights to purchase stock or a combination thereof. 
Dilution to existing stockholders and to earnings per share may result to the 
extent that shares of stock or other rights to purchase stock are issued in 
connection with any such future acquisitions.


                                       6


<PAGE>

RISKS OF PRODUCT DEFECTS; PRODUCT AND OTHER LIABILITY

     As a result of their complexity, software products may contain 
undetected errors or compatibility issues, particularly when first introduced 
or as new versions are released. There can be no assurance that, despite 
testing by the Company and testing and use by current and potential 
customers, errors will not be found in new products after commencement of 
commercial shipments. The occurrence of such errors could result in loss of 
or delay in market acceptance of the Company's products, which could have a 
material adverse effect on the Company's business, financial condition and 
results of operations. The increasing use of the Company's products for 
applications in systems that interact directly with the general public, 
particularly applications in transportation, medical systems and other 
markets where the failure of the embedded system could cause substantial 
property damage or personal injury, could expose the Company to significant 
product liability claims. In addition, the Company's products may be used for 
applications in mission-critical business systems where the failure of the 
embedded system could be linked to substantial economic loss. 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 testing and use 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. Although the Company's license and other agreements with 
its customers typically contain provisions designed to limit the Company's 
exposure to potential product liability and other claims, these provisions 
may not be effective in all circumstances and in all jurisdictions. Although 
the Company has not experienced any product liability or economic loss claims 
to date, the sale and support of the Company's products entails the risk of 
such claims. The Company carries insurance against product liability risks 
and errors or omissions coverage, although there can be no assurance that 
such insurance will continue to be available to the Company on commercially 
reasonable terms or at all. A product liability claim or claim for economic 
loss brought against the Company in excess of or outside the limits of its 
insurance coverage, or a product recall involving the Company's software, 
could have a material adverse effect on the Company's business, financial 
condition and results of operations.

   
    

                                       7


<PAGE>

LIMITED PROTECTION OF PROPRIETARY TECHNOLOGY; RISKS OF INFRINGEMENT

     The Company's success is heavily dependent upon its proprietary 
technology. To protect its proprietary rights, the Company relies on a 
combination of copyright, trade secret, patent and trademark laws, 
nondisclosure and other contractual restrictions on copying, distribution and 
technical measures. The Company seeks to protect its software, documentation 
and other written materials through trade secret and copyright laws, which 
provide only limited protection. In addition, the Company has two United 
States patent applications pending. There can be no assurance that patents 
will issue from the Company's pending applications or that any claims allowed 
will be of sufficient scope or strength (or be issued in all countries where 
the Company's products can be sold) to provide meaningful protection or any 
commercial advantage to the Company. As a part of its confidentiality 
procedures, the Company generally enters into nondisclosure agreements with 
its employees, consultants, distributors and corporate partners and limits 
access to and distribution of its software, documentation and other 
proprietary information. End user licenses of the Company's software are 
frequently in the form of shrink wrap license agreements, which are not 
signed by licensees, and therefore may be unenforceable under the laws of 
many jurisdictions. Despite the Company's efforts to protect its proprietary 
rights, it may be possible for unauthorized third parties to copy the 
Company's products or to reverse engineer or obtain and use information that 
the Company regards as proprietary. There can be no assurance that the 
Company's competitors will not independently develop technologies that are 
substantially equivalent or superior to the Company's technologies. Policing 
unauthorized use of the Company's products is difficult, and while the 
Company is unable to determine the extent to which software piracy of its 
products exists, software piracy can be expected to be a persistent problem. 
In addition, effective protection of intellectual property rights may be 
unavailable or limited in certain countries. The status of U.S. patent 
protection in the software industry is not well defined and is likely to 
evolve as the U.S. Patent and Trademark Office grants additional patents. 
Patents have been granted on fundamental technologies in software, and 
patents may issue in the future that relate to fundamental technologies 
incorporated into the Company's products.

     As the number of patents, copyrights, trademarks, trade secrets and 
other intellectual property rights in the Company's industry increases, 
products based on the Company's technology may increasingly become the 
subject of infringement claims.  The Company has received in the past and may 
receive in the future letters from third parties asserting infringement 
claims against the Company. There can be no assurance that third parties will 
not assert infringement claims against the Company in the future. Any such 
claims, whether 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 on the 
Company's business, financial condition and results of operations. In 
addition, the Company may initiate claims or litigation against third parties 
for infringement of the Company's proprietary rights or to establish the 
validity of the Company's proprietary rights. Litigation to determine the 
validity of any claims, whether or not such litigation is determined in favor 
of the Company, could result in significant expense to the Company and divert 
the efforts of the Company's technical and management personnel from 
productive tasks. In the event of an adverse ruling in any such litigation, 
the Company might be required to pay substantial damages, discontinue the use 
and sale of infringing products, expend significant resources to develop 
non-infringing technology or obtain licenses to infringing technology.

LEVERAGE

     In connection with the sale of Convertible Subordinated Notes in fiscal 
1998, the Company incurred $140 million in debt which resulted in an increase 
in its ratio of long-term debt to total capitalization. As a result of this 
additional indebtedness, the Company's principal and interest obligations 
have increased substantially. The degree to which the Company will be 
leveraged could materially and adversely affect the Company's ability to 
obtain financing for working capital, acquisitions or other purposes and 
could make it more vulnerable to industry downturns and competitive 
pressures. The Company's ability to meet its debt service obligations will be 
dependent upon the Company's future performance, which will be subject to 
financial, business and other factors affecting operations of the Company, 
many of which are beyond its control.

VOLATILITY OF  STOCK PRICE

     The market price of the Company's Common Stock has fluctuated in the 
past, and is likely to fluctuate in the future. The Company believes that 
various factors, including quarterly fluctuations in results of operations, 
announcements of new products by the Company or by its competitors, and 
changes in the software industry in 


                                       8


<PAGE>

general may significantly affect the market price of the Common Stock. In 
addition, in recent years the stock market in general, and the shares of 
technology companies in particular, have experienced extreme price 
fluctuations. This volatility has had a substantial effect on the market 
prices of securities issued by the Company and other high technology 
companies, often for reasons unrelated to the operating performance of the 
specific companies. The market prices of many high technology companies' 
stocks are at or near their historical highs and reflect price/earning ratios 
substantially above historical norms. There can be no assurance that the 
market price of the Common Stock will remain at or near its current level. In 
the past, following periods of volatility in the market price of a company's 
securities, securities class action litigation has often been instituted 
against that company. Such litigation, if instituted against the Company, 
could result in substantial costs and a diversion of management attention and 
resources, which would have a material adverse effect on the Company's 
business, financial condition and results of operation, even if the Company 
is successful in such suits. These market fluctuations, as well as general 
economic, political and market conditions such as recessions, may adversely 
affect the market price of the Common Stock.
                                          
                                  USE OF PROCEEDS

     The Company will not receive any proceeds from the sale of the Shares by 
the Selling Stockholders in the offering.

                                          
                                       9


<PAGE>

                                SELLING STOCKHOLDERS

   
     The following table sets forth the names of the Selling Stockholders and 
the number of shares of Common Stock owned by each of them as of October 28, 
1998 which may be offered pursuant to this Prospectus. This information is 
based upon information provided by Selling Stockholders. Because the Selling 
Stockholders may offer all, some or none of their Common Stock, no definitive 
estimate as to the number of shares thereof that will be held by the Selling 
Stockholders after such offering can be provided.
    

   
<TABLE>
<CAPTION>
                              SHARES BENEFICIALLY
                                     OWNED                       SHARES BENEFICIALLY OWNED
                              PRIOR TO OFFERING(1) SHARES BEING      AFTER OFFERING(2)
                              -------------------- ------------  -------------------------
           NAME                NUMBER   PERCENT     OFFERED(3)      NUMBER       PERCENT
- --------------------           ------   -------     ----------      ------       -------
<S>                            <C>      <C>         <C>           <C>            <C> 
 Joseph Bishop                  3,798       *          3,798          -0-           -
 Robert Bishop                 87,000       *         87,000          -0-           -
 Steve Bishop                  22,792       *         22,792          -0-           -
 John Christensen (4)           8,782       *          8,782          -0-           -
 Laird Foshay                   6,353       *          6,353          -0-           -
 Leonard Grover                 7,221       *          7,221          -0-           -
 Mark Hurst                     7,596       *          7,596          -0-           -
 Paul Leathers                 13,173       *         13,173          -0-           -
 Larry Macfarlane (5)(6)       23,427       *         23,427          -0-           -
 Bruce Miller                   7,678       *          7,678          -0-           -
 Richard Paulsen (5)           19,719       *         19,719          -0-           -
 Michael Redd (5)               4,998       *          4,998          -0-           -
 Corporation of the            13,674       *         13,674          -0-           -
 President of the Church of
 Jesus Christ of Latter-day
 Saints (the "LDS Church") (5)
</TABLE>
    

- ----------------------------
*    Less than one percent.

(1)  Beneficial ownership is determined in accordance with the Rules of the
     SEC and generally includes voting or investment power with respect to
     securities. Except as otherwise indicated by footnote, and subject to
     community property laws where applicable, the persons named in the
     table have sole voting and investment power with respect to all shares
     of Common Stock shown as beneficially owned by them.
   
(2)  Assumes the sale of all shares offered hereby.
    
   
(3)  Includes 161,848 shares which, as of the date of this Prospectus, have 
     been sold hereby.
    
   
(4)  By Karen P. Christensen, Administrator in Intestacy.
    
   
(5)  Messrs. Macfarlane, Paulsen and Redd may donate up to 200, 300 and 500 
     shares, respectively, to the LDS Church, which shall be deemed to be a 
     Selling Stockholder with respect to such donated shares. In such event,
     the number of shares offered by each of Messrs. Macfarlane, Paulsen and 
     Redd shall decrease by the amounts of their respective donations and 
     the number of shares offered by the LDS Church shall increase by such 
     amounts.
    
(6)  Mr. Macfarlane is President and a director of Zinc Software
     Incorporated, a wholly-owned subsidiary of the Company.

                                       10
<PAGE>
                               PLAN OF DISTRIBUTION

   
     The shares of Common Stock offered hereby may be sold by the Selling 
Stockholders, or by donees, pledgees, trannsferees or other successors in 
interest who receive such shares as a gift or other non-sale transfer, and 
who shall be deemed to be Selling Stockholders hereunder.  Such shares may be 
sold from time to time to purchasers directly by each of the Selling 
Stockholders acting as principal for its own account or through underwriters, 
dealers or agents who may receive compensation in the form of underwriting 
discounts, commissions or concessions from the Selling Stockholders and/or 
the purchasers of shares for whom they may act as agent.  Sales may be made 
on the Nasdaq National Market or in private transactions or in 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.  In addition to sales of Common Stock 
pursuant to the Registration Statement of which this Prospectus is a part, 
the Selling Stockholders may sell such Common Stock in compliance with Rule 
144 promulgated under the Securities Act.
    

   
     From time to time one or more of the Selling Stockholders may transfer, 
pledge, donate or assign such Selling Stockholders' shares to lenders or 
others and each of such persons will be deemed to be a Selling Stockholder 
for purposes of this Prospectus.  The number of Selling Stockholders' shares 
beneficially owned by those Selling Stockholders who so transfer, pledge, 
donate or assign Selling Stockholders' Shares will decrease as and when they 
take such actions.  The plan of distribution for Selling Stockholders' shares 
hereunder will otherwise remain unchanged, except that the transferees, 
pledgees, donees or other successors will be Selling  Stockholders hereunder.
    

     The Selling Stockholders and any underwriters, dealers or agents that 
participate in the distribution of the Common Stock offered hereby may be 
deemed to be underwriters within the meaning of the Act, and any discounts, 
commissions or concessions received by them and any provided pursuant to the 
sale of shares by them might be deemed to be underwriting discounts and 
commissions under the Act.

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

     The Shares were originally issued to the Selling Stockholders pursuant 
to an exemption from the registration requirements of the Securities Act 
provided by Section 4(2) thereof.  The Company agreed to register the Shares 
under the Securities Act and to indemnify and hold the Selling Stockholders 
harmless against certain liabilities under the Securities Act that could 
arise in connection with the sale by the Selling Stockholders of the Shares.  
The Company has agreed to pay all reasonable fees and expenses incident to 
the filing of this Registration Statement.

                                   LEGAL MATTERS

     The validity of the Shares will be passed upon for the Company by Cooley 
Godward LLP, Palo Alto, California.
                                          
                                      EXPERTS

     The consolidated financial statements incorporated in this Prospectus by 
reference to the Annual Report on Form 10-K of Wind River Systems, Inc. for 
the year ended January 31, 1998, have been so incorporated in reliance on the 
report of PricewaterhouseCoopers LLP, independent accountants, given on the 
authority of said firm as experts in auditing and accounting. 


                                       11


<PAGE>

     No dealer, salesman or other person has been authorized to give any 
information or to make any representations other than those contained in this 
Prospectus and, if given or made, such other information and representations 
must not be relied upon as having been authorized by the Company. This 
Prospectus does not constitute an offer or solicitation by anyone in any 
state 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. The 
delivery of this Prospectus at any time does not imply that the information 
herein is correct as of any time subsequent to the date hereof.

                                 TABLE OF CONTENTS

   
Available Information. . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
Incorporation of Certain Documents by Reference. . . . . . . . . . . . . . .  2
The Company. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
Use of Proceeds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
Selling Stockholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Plan of Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Legal Matters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Experts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
    


                                       12


<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.

   
Registration fee . . . . . . . . . . . . . . . . . . . . . . . . . . . .  $2,230
Nasdaq listing fee . . . . . . . . . . . . . . . . . . . . . . . . . . .  $4,525
Printing expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . .  $2,000
Legal fees and expenses. . . . . . . . . . . . . . . . . . . . . . . . . $17,000
Accounting fees and expenses . . . . . . . . . . . . . . . . . . . . . .  $5,000
Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  $1,245

     Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $32,000
    

ITEM 15.  INDEMNIFICATION OF OFFICERS AND DIRECTORS.

     Under Section 145 of the Delaware General Corporation Law, the 
Registrant has broad powers to indemnify its directors and officers against 
liabilities they may incur in such capacities, including liabilities under 
the Securities Act of 1933, as amended ("Securities Act"). The Registrant's 
Bylaws also provide that the Registrant will indemnify its directors and 
executive officers and may indemnify its other officers, employees and other 
agents to the fullest extent permitted by Delaware law.

     The Registrant's Restated Certificate of Incorporation ("Restated 
Certificate") provides that the liability of its directors for monetary 
damages shall be eliminated to the fullest extent permissible under Delaware 
law. Pursuant to Delaware law, this includes elimination of liability for 
monetary damages for breach of the directors' fiduciary duty of care to the 
Registrant and its stockholders. These provisions do not eliminate the 
directors' duty of care and, in appropriate circumstances, equitable remedies 
such as injunctive or other forms of non-monetary relief will remain 
available under Delaware law. In addition, each director will continue to be 
subject to liability for breach of the director's duty of loyalty to the 
Registrant, for acts or omissions not in good faith or involving intentional 
misconduct, for knowing violations of law, for any transaction from which the 
director derived an improper personal benefit, and for payment of dividends 
or approval of stock repurchases or redemptions that are unlawful under 
Delaware law. The provision also does not affect a director's 
responsibilities under any other laws, such as the federal securities laws or 
state or federal environmental laws.

     The Registrant has entered into agreements with its directors and 
officers that require the Company to indemnify such persons to the fullest 
extent authorized or permitted by the provisions of the Restated Certificate 
and Delaware law against expenses, judgements, fines, settlements and other 
amounts actually and responsibly incurred (including expenses of a derivative 
action) in connection with any proceeding, whether actual or threatened, to 
which any such person may be made a party by reason of the fact that such 
person is or was a director, officer, employee or other agent of the 
Registrant or any of its affiliated enterprise. Delaware law permits such 
indemnification, provided such person acted in good faith and in a manner 
such person reasonably believed to be in or not opposed to the best interest 
of the Registrant and, with respect to any criminal proceeding, had no 
reasonable cause to believe his or her conduct was unlawful. The 
indemnification agreements also set forth certain procedures that will apply 
in the event of a claim for indemnification thereunder.

     At present, there is no pending litigation or proceeding involving a 
director or officer of the Registrant as to which indemnification is being 
sought nor is the Registrant aware of any threatened litigation that may 
result in claims for indemnification by any officer or director.


                                       II-1


<PAGE>

ITEM 16.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

   
     (A)  Exhibits

 EXHIBIT
 NUMBER                     DESCRIPTION OF DOCUMENT
- ----------     -----------------------------------------------------
 23.1          Consent of PricewaterhouseCoopers LLP
- --------------------

     (B)  Schedules.

          None.
    

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; 
provided, however, that (i) and (ii) do not apply if the Registration 
Statement is on Form S-3 or Form S-8, and the information required to be 
included in a post-effective amendment by (i) and (ii) is contained in 
periodic reports filed with or furnished to the Commission by the Registrant 
pursuant to Section 13 or Section 15(d) of the Exchange Act that are 
incorporated by reference 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 foregoing provisions, 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 
Exchange Act (and, where applicable, each filing of an employee benefit 
plan's annual report pursuant to Section 15(d) of the Exchange 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.

     The undersigned Registrant hereby undertakes that:


                                       II-2


<PAGE>

     (1)  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.

     (2)  For purposes of determining any liability under the Securities Act, 
each post-effective amendment that contains a form of prospectus 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.



                                       II-3


<PAGE>

                                      SIGNATURES

   
     Pursuant to the requirements of the Securities Act of 1933, as amended, 
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 Alameda, State of California, on 
the 29th day of October, 1998.
    

                              WIND RIVER SYSTEMS, INC.

   
                              By:  /s/ Richard W. Kraber
                                   --------------------------------------
                                   Richard W. Kraber
                                   Chief Financial Officer
    

   
    

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

   
        SIGNATURE                      TITLE                         DATE


  /s/       *                  Chief Executive Officer,        October 29, 1998
- ----------------------------   President and Director        
      Ronald A. Abelmann       (PRINCIPAL EXECUTIVE OFFICER) 
                               

  /s/  Richard W. Kraber       Chief Financial Officer         October 29, 1998
- ----------------------------   (PRINCIPAL FINANCIAL AND
       Richard W. Kraber       ACCOUNTING OFFICER)

  /s/       *                  Chairman of the Board           October 29, 1998
- ----------------------------
       Jerry L. Fiddler

  /s/       *                  Director and Chief Technical    October 29, 1998
- ----------------------------   Officer
        David N. Wilner        

  /s/       *                  Director                        October 29, 1998
- ----------------------------
       William B. Elmore

  /s/       *                  Director                        October 29, 1998
- ----------------------------
        David B. Pratt

*By: /s/  Richard W. Kraber 
     -----------------------
          Richard W. Kraber
          Attorney-in-Fact
    


                                       II-4


<PAGE>

   
 EXHIBIT
 NUMBER                 DESCRIPTION OF DOCUMENT
- -------------

 23.1          Consent of PricewaterhouseCoopers LLP
    


                                       II-5


<PAGE>

                                                                    EXHIBIT 23.1



                         CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in the Prospectus 
constituting part of this Registration Statement on Form S-3 of our report 
dated February 23, 1998, except as to Note 13 which is dated March 18, 1998, 
appearing on page 27 of Wind River Systems, Inc.'s Annual Report on Form 10-K 
for the year ended January 31, 1998.  We also consent to the reference to us 
under the heading "Experts" in such Prospectus.

   
PRICEWATERHOUSECOOPERS LLP
San Jose, California
October 23, 1998
    



                                       II-6



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