MERCURY INTERACTIVE CORPORATION
10-K405, 2000-03-22
PREPACKAGED SOFTWARE
Previous: CELADON GROUP INC, SC 13G, 2000-03-22
Next: REDDI BRAKE SUPPLY CORP, 10KSB, 2000-03-22



<PAGE>

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

                                 UNITED STATES

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                   FORM 10-K

[X]ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
   ACT OF 1934.

  for the fiscal year ended December 31, 1999

[_]TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
   EXCHANGE ACT OF 1934.

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

                        Commission File Number: 0-22350

                        MERCURY INTERACTIVE CORPORATION
            (Exact name of registrant as specified in its charter)

<TABLE>
<S>                                            <C>
                  Delaware                                       77-0224776
        (State or other jurisdiction                          (I.R.S. Employer
      of incorporation or organization)                     Identification No.)
</TABLE>

                   1325 Borregas Avenue, Sunnyvale, CA 94089
                   (Address of principal executive offices)

                                (408) 822-5200
             (Registrant's telephone number, including area code)

          Securities registered pursuant to Section 12(g) of the Act:

                        Common Stock, $0.002 par value

  Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such a shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days. YES [X] NO [_]

  Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to
the best of Registrant's knowledge, in definitive proxy information statements
incorporated by reference in Part III of this Form 10-K or any amendment to
this Form 10-K. [X]

  The aggregate market value of the voting stock held by non-affiliates of the
Registrant was approximately $7,625,566,441 as of February 29, 2000, based
upon the closing sale price reported for that date on the Nasdaq National
Market. Shares of Common Stock held by each officer and director and by each
person who owns 5% or more of the outstanding Common Stock have been excluded
because such persons may be deemed to be affiliates. This determination of
affiliate status is not necessarily conclusive for other purposes.

  The number of shares of Registrant's Common Stock outstanding as of February
29, 2000 was 79,123,906.

                      DOCUMENTS INCORPORATED BY REFERENCE

  Portions of the Proxy Statement for Registrant's 2000 Annual Meeting of
Stockholders to be held May 24, 2000 are incorporated by reference in Part III
of this Annual Report on Form 10-K.

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
 <C>      <S>                                                              <C>
                                      PART I

 Item 1.  Business......................................................     3
          General.......................................................     3
          Products and Hosted Solutions.................................     4
          Research and Development......................................     7
          Marketing, Sales and Support..................................     7
          Competition...................................................     9
          Patents, Trademarks and Licenses..............................     9
          Personnel.....................................................    10

 Item 2.  Properties....................................................    11

 Item 3.  Legal Proceedings.............................................    11

 Item 4.  Submission of Matters to a Vote of Security Holders...........    11

                                      PART II

          Market for the Registrant's Common Equity and Related
 Item 5.  Stockholder Matters...........................................    12

 Item 6.  Selected Consolidated Financial Data..........................    13

          Management's Discussion and Analysis of Financial Condition
 Item 7.  and Results of Operations.....................................    14

 Item 7a. Quantitative and Qualitative Disclosures about Market Risk....    25

 Item 8.  Financial Statements and Supplementary Data...................    25

          Changes in and Disagreements with Accountants on Accounting
 Item 9.  and Financial Disclosure......................................    25

                                     PART III

 Item 10. Directors and Executive Officers of the Registrant............    26

 Item 11. Executive Compensation........................................    26

          Security Ownership of Certain Beneficial Owners and
 Item 12. Management....................................................    26

 Item 13. Certain Relationships and Related Transactions................    26

                                      PART IV

          Exhibits, Financial Statement Schedules and Reports on Form 8-
 Item 14. K.............................................................    27
</TABLE>

                                       2
<PAGE>

  This Annual Report on Form 10-K contains forward-looking statements within
the meaning of Section 21E of the Securities Exchange Act of 1934 and Section
27A of the Securities Act of 1933. In some cases, forward-looking statements
are identified by words such as "believes," "anticipates," "expects,"
"intends," "plans," "will," "may" and similar expressions. In addition, any
statements that refer to our plans, expectations, strategies or other
characterizations of future events or circumstances are forward-looking
statements. Our actual results could differ materially from those discussed
in, or implied by, these forward-looking statements. Factors that could cause
actual results or conditions to differ from those anticipated by these and
other forward-looking statements include those more fully described in "Risk
Factors." Our business may have changed since the date hereof, and we
undertake no obligation to update the forward-looking statements in this
Annual Report on Form 10-K.

                                    PART I

Item 1. Business

General

  We are the leading provider of integrated performance management solutions
that enable businesses to test and monitor their Internet applications. Our
software products and hosted services help e-businesses enhance the user
experience by improving the performance, availability, reliability and
scalability of their Web sites. By using our solutions to identify and assess
performance problems, e-businesses can increase their ability to attract and
retain customers, and improve their competitive advantage.

  Our customers represent a wide range of industries including Internet
companies such as Amazon.com, America Online, Ameritrade, E*Trade,
Healtheon/WebMD, HomeGrocer.com, Jobs.com, ShopLink.com and WingspanBank.com;
Internet infrastructure providers such as Ariba, Broadbase, Broadvision, i2
Technologies and Oracle; and Fortune 1000 enterprises such as Apple Computer,
Caterpillar, Cisco Systems, Ford Motor Co. and Walmart.

  Our integrated performance management solutions address these requirements,
enabling customers to more quickly identify and correct problems before users
experience them. Our products include load testing, functional testing and
test management products that automate the testing of Internet and other
applications, as well as Web performance monitoring products that monitor and
measure Web site performance from the end-user's perspective and alert our
customers to performance problems. Our hosted Web performance monitoring and
load testing services provide out-sourced testing and monitoring services.
Specifically, our products consist of:

  .  Load testing products that stress applications under real-world
     conditions to predict systems' behavior, scalability and performance and
     to identify and isolate problems;

  .  Functional testing products that help ensure that e-commerce and other
     applications operate as expected;

  .  Test process management products that organize and manage the testing
     process to determine application readiness;


  .  Web performance monitoring products that monitor sites in real time and
     alert operations groups to performance problems before users experience
     them;

  .  Hosted Web performance monitoring services that proactively monitor Web
     sites in real time; and

  .  Hosted load testing services that identify bottlenecks and capacity
     constraints before a Web site goes live.

  We collaborate with a number of e-business software companies such as
Allaire, Ariba, BEA, Bluestone, Broadvision, Calico Commerce, CommerceQuest,
DoubleClick, IBM, Selectica, Silverstream, Sun-Netscape

                                       3
<PAGE>

Alliance and Vignette. These collaborations allow us to ensure that our
performance management solutions are optimized for use with their product
offerings. In addition, many of these collaborations allow us to conduct joint
marketing programs and joint seminars and participate in their user
conferences.

  On November 30, 1999, we acquired Conduct Ltd., an Israeli-based provider of
software for monitoring network performance. We plan to integrate Conduct's
technology into our products to provide root cause analysis and to enable our
customers to more readily pinpoint performance bottlenecks. We issued
approximately 408,000 shares of common stock in exchange for all of Conduct's
outstanding capital stock (including outstanding Conduct stock options and
warrants that we assumed).

  In February 2000, we formed a wholly-owned subsidiary to offer our hosted
Web site performance monitoring service, Topaz ActiveWatch, and our hosted Web
site load testing service, Load Runner Active Test. We believe our ASP
subsidiary will complement our existing offerings by providing a cost-
effective solution that allows customers to quickly meet their needs without
dedicating significant time and internal resources.

Products and Hosted Solutions

  We offer a comprehensive, integrated solution for application testing and
Web performance monitoring. Our software products and hosted e-services enable
our customers to test and monitor their Web sites and other applications.
These solutions include functional testing, load testing and test management
products that automate the testing of e-commerce applications as well as Web
performance monitoring offerings that measure end-user experience of Web sites
in production. Our hosted e-services provide outsourced testing and
monitoring, complementing our product offerings by providing a cost-effective
solution that allows customers to quickly meet their needs without dedicating
significant time and internal resources.

                                       4
<PAGE>

Our current products and hosted solutions consist of the following:

<TABLE>
<CAPTION>
                                                       Date of      Typical List Price
 Solution Name             Solution Description     Introduction          Range*
 -------------             --------------------     ------------    ------------------

 <C>                     <S>                        <C>           <C>
 Testing Solutions

 Load Testing
 Astra LoadTest......... Stress testing for Web     December 1996 $9,995 for 50 virtual
                         applications                             users
 LoadRunner............. Automated multi-user       November 1993 $40,000-$50,000 for
                         load testing for Web,                    package simulating
                         client server and                        50 users
                         enterprise applications
 LoadRunner ActiveTest.. Hosted Web site stress     January 2000  $15,000 for 100
                         testing                                  virtual users (3
                                                                  iterations)
 Functional Testing
 Astra QuickTest........ Functional testing for     May 1998      $2,995 per copy
                         Web applications
 WinRunner.............. Automated functional       June 1993     $4,995-$10,000 per
                         application testing for                  user
                         Web, client server and
                         enterprise applications
 XRunner................ Automated functional       1991          $10,000-$15,000 per
                         application testing for                  user
                         UNIX, X-Window
 Test Management
 Astra SiteManager...... Visual Web site            October 1996  No charge
                         management tool
 TestDirector........... Automated test             November 1994 $12,000 for server
                         management system for QA                 plus 5 users,
                         workgroups                               additional users for
                                                                  $495 each
 Monitoring Solutions
 Topaz.................. Web application            October 1999  $2,495/month for
                         performance monitoring                   5 monitoring
                                                                  transactions
 Topaz ActiveWatch...... Hosted performance         October 1999  $3,750/month for
                         monitoring                               5 monitoring
                                                                  transactions
</TABLE>
- --------
* List prices vary within the ranges shown according to system configuration
  and country where purchased. In addition, actual license prices may vary
  from list prices.

 Testing Solutions

 Astra LoadTest

  Astra(R) LoadTest is an easy-to-use load testing tool that tests the
scalability and performance of Web applications. With Astra LoadTest, users
can emulate the traffic of thousands of real users to identify and isolate
bottlenecks and optimize user experience. Astra LoadTest was initially
released in 1996.

 LoadRunner

  LoadRunner(R) is a load testing tool that predicts system behavior and
performance. It exercises an entire enterprise infrastructure by emulating
thousands of users to identify and isolate problems. LoadRunner's integrated
real-time monitors enable organizations to minimize test cycles, optimize
performance and accelerate application deployment. LoadRunner is available for
Windows, Window 95, Windows NT, UNIX and Remote Terminal Emulation (RTE).
LoadRunner was initially released in 1993.

                                       5
<PAGE>

 LoadRunner ActiveTest

  LoadRunner ActiveTest(TM) is the hosted load testing service that can
conduct full-scale testing of Web sites in as little as 24 hours. By emulating
the behavior of thousands of users against a staging server, it identifies
bottlenecks and capacity constraints before going live. Using this hosted
offering allows customers with minimal hardware, personnel or technical
expertise to achieve rapid results. LoadRunner ActiveTest was initially
introduced in 2000.

 Astra QuickTest

  Astra QuickTest(TM) is an icon-based tool for testing the functionality of
dynamically changing Web applications. By replacing traditional scripts with
icons, it records and represents user actions visually to simplify and
accelerate testing. By mirroring end user behavior, Astra QuickTest creates
interactive customizable tests that simplify and shorten the testing cycle.
Astra QuickTest is designed specifically for deploying reliable e-business
applications. Astra QuickTest was initially released in 1998.

 WinRunner

  WinRunner(R) is an enterprise functional testing tool that verifies that
applications work as expected. By capturing, verifying and replaying user
interactions automatically, WinRunner identifies defects and ensures that
business processes work flawlessly and remain reliable throughout the
lifecycle. WinRunner is available for Windows 3.1, Windows 95 and Windows NT
platforms. WinRunner was initially released in 1993.

 XRunner

  XRunner(R) automates functional testing to ensure X-Window-based
applications work as expected. It records business processes into test
scripts, supports script enhancements as the application is developed or
updated, executes scripts, reports results and enables script reusability
throughout an application's lifecycle. XRunner was initially released in 1991.

 Astra SiteManager

  Astra SiteManager(TM) is a comprehensive visual Web site management tool
that is designed to meet the challenges faced by Webmasters, Internet
professionals and business managers of rapidly growing Web sites. Astra
SiteManager automatically schedules and performs scans of an entire Web site--
highlighting functional areas with color-coded links and URLs--to create a
complete visual map of a Web site. Astra SiteManager was initially released in
1996.

 TestDirector

  TestDirector(R) is an integrated enterprise application for organizing and
managing the entire testing process. It enables all members of the IT
organization to coordinate their testing efforts and control testing projects
at every step of the quality cycle, from test planning through execution to
defect management. TestDirector was initially released in 1994.

 Monitoring Solutions

 Topaz

  Topaz(TM) is a Web application performance management solution that allows
customers to monitor the performance of their Web sites on a 24x7 basis to
ensure a positive end-user experience. By proactively monitoring sites in real
time, Topaz alerts operations groups of performance problems before users
experience them. Topaz was initially released in 1999.

                                       6
<PAGE>

 Topaz ActiveWatch

  Topaz ActiveWatch(TM) is a hosted service that monitors Web site
performance. Using this hosted offering allows customers with minimal
hardware, personnel or technical expertise to achieve rapid results. Topaz
ActiveWatch was initially introduced in 1999.

Research and Development

  Since our inception in 1989, we have made substantial investments in
research and product development. We believe that our success will depend in
large part on our ability to maintain and enhance our current product line,
develop new products, maintain technological competitiveness and meet changing
customer requirements.

  In addition to the teams developing Web testing and performance monitoring
products and services, we maintain an advanced research group that is
responsible for exploring new directions and applications of core
technologies, migrating new technologies into the existing product lines and
maintaining research relationships outside Mercury both within industry and
academia. The research and development group also maintains relationships with
third-party software vendors and with all major hardware vendors on whose
platforms our products operate. Key development engineers are rotated to
assignments in customer support positions in our major markets for periods
ranging from three months to two years. This improves feedback from current
customers and strengthens ties between the Customer Support Organization and
the research and development group.

  Our primary research and development group is located near Tel Aviv, Israel.
Performing research and development in Israel offers a number of strategic
advantages. Our Israeli engineers typically hold advanced degrees in computer-
related disciplines. Operation in Israel has allowed us to enjoy tax
incentives and research subsidies from the government of Israel. Geographic
proximity to Europe, a strategic market for Mercury, offers another key
advantage.

  As of December 31, 1999, our research and development group consisted of 226
employees. Our net research and development expenses were $23.5 million in
1999, $16.9 million in 1998 and $11.3 million in 1997. We anticipate that we
will continue to commit substantial resources to research and development. If
we are not able to continue to introduce new products and product enhancements
that address the changing needs of our customers, our business would be
seriously harmed. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations--Risk Factors."

Marketing, Sales and Support

  We distribute our products and offer our services both directly, through our
growing sales force, and indirectly, through our relationships with system
integrators and value-added resellers.

 Direct Sales

  We sell our products primarily through our direct sales organization. We
employ technically proficient salespeople and highly skilled field application
engineers capable of serving the sophisticated needs of prospective customers.
As of December 31, 1999, our direct sales organization consisted of 328
employees.

  We have 19 sales and support centers throughout the United States.
Internationally, our subsidiaries operate 21 sales and support offices located
in Canada, Brazil, Europe, Israel, South Africa and the Pacific Rim. We also
market our products through international distributors in some markets.

  International sales represented 34% of our total revenues in 1999, 35% in
1998 and 36% in 1997, respectively. We expect that in future periods,
international sales will continue to account for a significant portion of our
total revenue. Our international operations and sales present a number of
risks. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations--Risk Factors."

                                       7
<PAGE>

 Indirect Distribution Channels

  We derive a substantial portion of our revenue from sales of our products
through indirect distribution channels such as system integrators and value-
added resellers, including Andersen Consulting, Computer Sciences Corporation,
Ernst & Young, IBM Global Services, IXL, Inventa, Oracle, Primix Solutions,
Technology Builders Inc, Viant and ZEFER. A significant portion of our
international sales are derived from sales through distributors.

  We have recently begun targeting new distribution channels to complement our
traditional direct and indirect channel. Our Astra family of products is now
offered through our cyber sales program over the Internet. We have also
entered into private-labelling arrangements with ASPs that incorporate our
products and services into theirs. In March 1999, we entered into an agreement
with Tivoli Systems, a subsidiary of IBM, for the joint development and
marketing of a family of products for enterprise application performance
management, incorporating elements of our technology, which would be marketed
and sold only by Tivoli. In addition, we recently entered into agreements with
two ASPs, Breakaway and Conxion, under which they offer our hosted Web
performance monitoring services under their own names.

  We expect that sales of our products through indirect distribution channels
will continue to account for a substantial portion of our revenues for the
foreseeable future. Our dependence on these channels presents a number of
risks. Each of our system integrators, value-added resellers and ASPs can
cease marketing our products and services with limited or no notice and with
little or no penalty. Our current system integrators, value-added resellers
and ASPs may not continue to offer our products and services, and we may not
be able to recruit additional or replacement system integrators, value-added
resellers and ASPs. The loss of one or more of our system integrators, value-
added resellers and ASPs could reduce our revenues. Our system integrators,
value-added resellers and ASPs also offer competitive products manufactured by
third parties. Our system integrators, value-added resellers and ASPs may not
give priority to the marketing of our products over competitors' products.
Finally, we may face conflicts between our indirect channels and our directs
sales and marketing activities.

 Customer Support

  We believe that strong customer support is crucial to both the initial
marketing of our products and maintenance of customer satisfaction, which in
turn enhances our reputation and generates repeat orders. In addition, we
believe that the customer interaction and feedback involved in our ongoing
support functions provide us with information on market trends and customer
requirements that is critical to future product development efforts.

  Pre-sales support is provided by sales personnel and post-sales support is
provided by our Customer Support Organization through training and consulting
engagements and renewable annual maintenance contracts. As of December 31,
1999, our Customer Support Organization consisted of 171 employees. The
maintenance contracts provide for technical and emergency support as well as
software upgrades, on an if and when available basis. When our local sales and
support offices are unable to solve a problem, our engineers and product
developers in Israel work with the support personnel. By taking advantage of
time differences, we can provide support around the clock, ensuring prompt
resolution of problems.

 Pricing

  We license our software to customers under non-exclusive license agreements
that restrict use of the products to internal purposes at a specified site. We
typically license software products to either allow up to a set number of
users to access the software on a network at any one time, using any
workstation attached to that network, or to allow use of the software on
designated computers or workstations. In addition, our hosted services and
some of our products are priced based on usage, such as the number of
transactions monitored or number of virtual users emulated per day.

  Our products are priced to encourage customers to purchase multiple products
and licenses because our cost to support a one-user configuration is almost
the same as a multiple-user configuration. License fees depend on

                                       8
<PAGE>

the product licensed, the number of users of the product licensed and the
country in which such licenses are sold, as international prices tend to be
higher than United States prices. Sales to our indirect sales channels, which
are intended for resale to end users, are made at varying discounts off of our
list prices, generally based on the sales volume of the indirect sales
channels. In addition, we sell annual maintenance contracts that include on-
site customer support and upgrades, generally for 18% of the license purchase
price. Training and consulting revenues are generated on a time and expense
basis.

Competition

  The market for testing and performance monitoring products and services is
highly competitive. There are few substantial barriers to entry in our market,
and the Internet has further lowered these barriers to entry for other
companies to compete with us in the testing and application performance
management markets. As a result of the increased competition, our success will
depend, in large part, on our ability to identify and respond to the needs of
potential customers, and to new technological and market opportunities, before
our competitors identify and respond to these needs and opportunities. We may
fail to respond quickly enough to these needs and opportunities.

  In the market for solutions for testing of applications, our competitors
include Compuware, Radview, Rational Software, RSW (a division of Teradyne)
and Segue Software. In the new and rapidly changing market for application
performance management, our competitors include providers of hosted services
such as Keynote Systems and Service Metrics (a division of Exodus
Communications), and emerging application providers such as Freshwater. In
addition, we face potential competition in this market from existing providers
of testing solutions such as Segue. Finally, in both the market for testing
solutions and the market for application performance management solutions, we
face potential competition from established providers of systems and network
management software such as BMC Software and Computer Associates.

  We believe that the principal competitive factors affecting our market are:

  .  product functionality;

  .  product performance, including scalability and reliability;

  .  price and cost-effectiveness;

  .  quality of support and service; and

  .  company reputation.

  Although we believe that our products currently compete favorably with
respect to these factors, the market for Web performance management
applications is new and rapidly evolving. We may not be able to maintain our
competitive position, and competitive pressure could seriously harm our
business.

Patents, Trademarks and Licenses

  We currently rely upon a combination of trademark, patent, copyright,
service mark, and trade secret laws and contractual restrictions to establish
and protect proprietary rights in our products and services. The source code
for our products is protected both as a trade secret and as an unpublished
copyrighted work. Despite these precautions, it may be possible for a third
party to copy or otherwise obtain and use our products or technology without
authorization. In addition, the laws of various countries in which our
products may be sold may not protect our products and intellectual property
rights to the same extent as the laws of the United States. Our competitors
may independently develop technologies that are substantially equivalent or
superior to our technology.

  Because the software industry is characterized by rapid technological
change, we believe that factors such as the technological and creative skills
of our personnel, new product developments, frequent product enhancements,
name recognition and reliable product maintenance are more important to
establishing and maintaining a technology leadership position than the various
legal protections of our technology.

                                       9
<PAGE>

  We hold six patents for elements contained in some of our products, and we
have filed several other U.S. and foreign patent applications on various
elements of our products. Our patent applications may not result in issued
patents and, if issued, such patents may not be upheld if challenged.

  Although we believe that our products and other proprietary rights do not
infringe upon the proprietary rights of third parties, third parties may
assert intellectual property infringement claims against us in the future. Any
such claims may result in costly, time-consuming litigation and may require us
to enter into royalty or cross-license arrangements.

Personnel

  As of December 31, 1999, we had a total of 857 employees, of which 362 were
based in the Americas and 495 were based internationally. Of the total, 548
were engaged in marketing, sales and related customer support services, 226
were in research and development, and 83 were in general and administrative
and operations support functions. Our success depends in significant part upon
the performance of our senior management and certain key employees.
Competition for highly skilled employees, including sales, technical and
management personnel, is intense in the software and technology industry. We
may not be able to recruit and retain key sales, technical and managerial
employees. Our failure to attract, assimilate or retain highly qualified
sales, technical and managerial personnel could seriously harm our business.
None of our employees is represented by a labor union, and we have never
experienced any work stoppages.

  Our executive officers as of March 1, 2000 are as follows:

<TABLE>
<CAPTION>
   Name              Age                        Position
   ----              ---                        --------
   <C>               <C> <S>
   Amnon Landan.....  41 President, Chief Executive Officer and Chairman of the
                          Board of Directors
   Kenneth Klein....  40 Chief Operating Officer
   Sharlene Abrams..  42 Chief Financial Officer and Vice President of Finance
                          and Administration
   Moshe Egert......  35 President of European Operations
</TABLE>

  Mr. Amnon Landan has served as our President and Chief Executive Officer
since February 1997, has served as Chairman of the Board of Directors since
July 1999, and has been a director since February 1996. From October 1995 to
January 1997, he served as President, and from March 1995 to September 1995 he
served as President of North American Operations. He served as Chief Operating
Officer from August 1993 until March 1995. From December 1992 to August 1993,
he served as our Vice President of Operations and from June 1991 to December
1992, he served as Vice President of Research and Development. From November
1989 to June 1991, he served with us in various technical positions.

  Mr. Kenneth Klein has served as our Chief Operating Officer since January
2000. He served as President of North American Operations from July 1998 until
December 1999. From April 1995 to July 1998 he served as Vice President of
North American Sales. From May 1992 to March 1995, he served as our Western
Area Sales Manager. From March 1990 to May 1992, Mr. Klein served as Regional
Sales Manager for Interactive Development Environments, a CASE tool company.
Mr. Klein has served as a director of Tumbleweed Communications Corp. since
February 2000.

  Ms. Sharlene Abrams has served as our Chief Financial Officer and President
of Finance and Administration since November 1993. From 1988 to November 1993,
Ms. Abrams was employed at Price Waterhouse LLP, most recently as a senior
manager. Between 1978 and 1988, Ms. Abrams held various finance and accounting
positions in other public companies and in public accounting. She is a
certified public accountant.

  Mr. Moshe Egert has served as our President of European Operations since
July 1999. From July 1996 to June 1999, he served as our Vice President of
European Operations. From February 1994 to June 1996, he served

                                      10
<PAGE>

as our Director of European Marketing. From October 1990 through January 1994,
he served with us in several management and technical positions.

Item 2. Properties

  We are headquartered in Sunnyvale, California in a 55,000 square foot
building that we own. In 1999, we purchased a 50,500 square foot building in
Sunnyvale, which will become a second headquarters facility.

  Our research and development activities are conducted by our subsidiary in
Israel in a 120,000 square foot building that we own. During 1999, we
purchased an additional parcel of land in Israel.

  Our field sales and support operations occupy leased facilities in 20
locations in the United States, one location in Canada, one location in
Brazil, 12 locations in Europe, one location in Israel, one location in
South Africa and five locations in the Pacific Rim. We believe that our
existing sales and support facilities are adequate for our current needs.

Item 3. Legal Proceedings

  There are presently no legal proceedings pending, other than routine
litigation incidental to our business, to which we are a party or to which any
of our properties is subject.

Item 4. Submission of Matters to a Vote of Security Holders

  (a) A special meeting of our stockholders was held at our offices at 1325
Borregas Avenue, Sunnyvale, California 94089 on December 16, 1999 at 10:00
a.m.

  (b) At that meeting, the following matter was voted upon and approved with
the number of votes cast for, against or withheld as set forth in the columns
set forth below the matter.

  PROPOSAL 1--Ratification and approval of the amendment of the Amended and
Restated 1999 Stock Option Plan to automatically increase each year the
aggregate number of shares reserved for issuance under our Amended and
Restated 1999 Stock Option Plan by 4% of the common stock and equivalents
outstanding as of January 1 of each year starting in 2000 and ending in 2003.

<TABLE>
<CAPTION>
                                                                                  Broker
        For               Against                   Abstentions                  Non-Votes
        ---               -------                   -----------                  ---------
     <S>                 <C>                        <C>                         <C>
     14,523,285          13,463,324                  120,552                     10,286,424
</TABLE>

                                      11
<PAGE>

                                    PART II

Item 5. Market for the Registrant's Common Equity and Related Stockholder
Matters

Market for Common Stock

  Our common stock is traded publicly on the Nasdaq National Market under the
trading symbol "MERQ." The following table presents, for the periods
indicated, the high and low sales prices of our common stock as reported on
the Nasdaq National Market.

<TABLE>
<CAPTION>
                                                                   High   Low
                                                                  ------ ------
   <S>                                                            <C>    <C>
   Year Ended December 31, 1998
     First Quarter............................................... $ 9.57 $ 6.10
     Second Quarter..............................................  11.16   7.82
     Third Quarter...............................................  11.44   7.88
     Fourth Quarter..............................................  15.82   5.29
   Year Ended December 31, 1999
     First Quarter............................................... $19.97 $10.75
     Second Quarter..............................................  19.94  10.50
     Third Quarter...............................................  34.41  17.31
     Fourth Quarter..............................................  55.13  30.94
</TABLE>

  The prices shown in the table above reflect the two-for-one splits of our
common stock, each of which were distributed as stock dividends to our
stockholders, on February 26, 1999 and February 11, 2000.

Holders of Record

  On February 29, 2000, there were approximately 30,600 holders of record of
our common stock. Because many of these shares are held by brokers and other
institutions on behalf of stockholders, we are unable to estimate the total
number of stockholders represented by these record holders.

Dividends

  We have never declared or paid any cash dividends on our common stock. We
currently intend to retain earnings for use in our business and do not
anticipate paying any cash dividends in the foreseeable future.

                                      12
<PAGE>

Item 6. Selected Consolidated Financial Data(1)

<TABLE>
<CAPTION>
                                              Year ended December 31,
                                     -----------------------------------------
                                       1999     1998    1997    1996    1995
                                     -------- -------- ------- ------- -------
                                     (in thousands, except per share amounts)
<S>                                  <C>      <C>      <C>     <C>     <C>
Statements of Operations Data:
Revenue:
  License........................... $130,900 $ 84,450 $56,683 $43,270 $32,765
  Service...........................   56,800   36,550  20,017  11,280   6,685
                                     -------- -------- ------- ------- -------
    Total revenue...................  187,700  121,000  76,700  54,550  39,450
                                     -------- -------- ------- ------- -------
Cost of revenue:
  License...........................    7,736    6,291   4,351   3,419   2,626
  Service...........................   18,642   11,757   6,225   3,240   1,887
                                     -------- -------- ------- ------- -------
    Total cost of revenue...........   26,378   18,048  10,576   6,659   4,513
                                     -------- -------- ------- ------- -------
Gross profit........................  161,322  102,952  66,124  47,891  34,937
                                     -------- -------- ------- ------- -------
Operating expenses:
  Research and development, net.....   23,484   16,907  11,333   9,670   6,523
  Write off of in-process research
   and development and related
   expenses.........................      --       --    5,500     --    7,700
  Marketing and selling.............   88,609   57,243  37,073  29,426  21,361
  General and administrative........   11,242    8,466   6,642   4,178   3,911
  Settlement of litigation..........      --       --      --    2,600   2,000
  Merger related expenses...........    2,000      --      --      --      --
                                     -------- -------- ------- ------- -------
    Total operating expenses........  125,335   82,616  60,548  45,874  41,495
                                     -------- -------- ------- ------- -------
Income (loss) from operations.......   35,987   20,336   5,576   2,017  (6,558)
Other income, net...................    6,026    4,640   3,083   3,375   2,277
                                     -------- -------- ------- ------- -------
Income (loss) before provision for
 income taxes.......................   42,013   24,976   8,659   5,392  (4,281)
Provision for income taxes..........    8,869    5,451   2,927   1,157     970
                                     -------- -------- ------- ------- -------
Net income (loss)................... $ 33,144 $ 19,525 $ 5,732 $ 4,235 $(5,251)
                                     ======== ======== ======= ======= =======
Net income (loss) per share
 (basic)(2)......................... $   0.44 $   0.28 $  0.09 $  0.07 $ (0.09)
                                     ======== ======== ======= ======= =======
Net income (loss) per share
 (diluted)(2)....................... $   0.39 $   0.25 $  0.08 $  0.06 $ (0.09)
                                     ======== ======== ======= ======= =======
Weighted average common shares
 (basic)(2).........................   76,112   70,654  65,494  63,634  55,788
                                     ======== ======== ======= ======= =======
Weighted average common shares and
 equivalents (diluted)(2)...........   85,208   78,818  68,458  66,254  55,788
                                     ======== ======== ======= ======= =======
</TABLE>

<TABLE>
<CAPTION>
                                                    December 31,
                                    --------------------------------------------
                                      1999     1998     1997     1996     1995
                                    -------- -------- -------- -------- --------
<S>                                 <C>      <C>      <C>      <C>      <C>
Balance Sheet Data:
Working capital.................... $137,066 $ 97,288 $ 87,733 $ 78,046 $ 75,475
Total assets....................... $297,218 $204,686 $143,663 $117,625 $112,820
Stockholders' equity............... $199,531 $146,408 $112,120 $ 99,048 $ 92,616
</TABLE>
- --------
(1) All historical information has been restated to reflect the acquisition of
    Conduct Ltd. on November 30, 1999, which was accounted for as a pooling of
    interests.

(2) All share and per share information gives effect to our two-for-one stock
    split distributed to our stockholders as a stock dividend on February 11,
    2000.

                                      13
<PAGE>

Item 7. Management's Discussion and Analysis of Financial Condition and
Results of Operations

  The following discussion contains forward-looking statements within the
meaning of Section 21E of the Securities Exchange Act of 1934 and Section 27A
of the Securities Act of 1933. In some cases, forward-looking statements are
identified by words such as "believes," "anticipates," "expects," "intends,"
"plans," "will," "may" and similar expressions. In addition, any statements
that refer to our plans, expectations, strategies or other characterizations
of future events or circumstances are forward-looking statements. Our actual
results could differ materially from those discussed in, or implied by, these
forward-looking statements. Factors that could cause actual results or
conditions to differ from those anticipated by these and other forward-looking
statements include those more fully described in "Risk Factors." Our business
may have changed since the date hereof, and we undertake no obligation to
update these forward-looking statements.

Overview

  We were incorporated in 1989, and began shipping automated software testing
products in 1991. Since 1991, we introduced a number of new products, and new
versions of existing products, including products and versions designed for e-
business applications. We believe that a majority of customers that licensed
our products in 1999 are using these products to test and monitor their Web
applications. Recently, we began offering hosted load testing and monitoring
services for Web applications.

  On November 30, 1999 we acquired Conduct Ltd., an Israeli-based provider of
software for monitoring network performance. We issued approximately 408,000
shares of common stock in exchange for all of Conduct's outstanding capital
stock (including outstanding Conduct stock options and warrants that we
assumed). We accounted for the transaction as a pooling of interests, and all
prior periods presented in our financial statements have been restated to
reflect this transaction.

Results of Operations

  The following table sets forth, as a percentage of total revenue, certain
consolidated statements of operations data for the periods indicated. These
operating results are not necessarily indicative of the results for any future
period.

<TABLE>
<CAPTION>
                                                                Year ended
                                                               December 31,
                                                              ----------------
                                                              1999  1998  1997
                                                              ----  ----  ----
   <S>                                                        <C>   <C>   <C>
   Revenue:..................................................
     License.................................................  70%   70%   74%
     Service.................................................  30    30    26
                                                              ---   ---   ---
       Total revenue......................................... 100   100   100
                                                              ---   ---   ---
   Cost of revenue:
     License.................................................   4     5     6
     Service.................................................  10    10     8
                                                              ---   ---   ---
       Total cost of revenue.................................  14    15    14
                                                              ---   ---   ---
   Gross profit..............................................  86    85    86
                                                              ---   ---   ---
   Operating expenses:
     Research and development, net...........................  13    14    15
     Write off of in-process research and development and
      related expenses.......................................  --    --     7
     Marketing and selling...................................  47    47    48
     General and administrative..............................   6     7     9
     Merger related expenses.................................   1    --    --
                                                              ---   ---   ---
       Total operating expenses..............................  67    68    79
                                                              ---   ---   ---
   Income from operations....................................  19    17     7
   Other income, net.........................................   3     4     4
                                                              ---   ---   ---
   Income before provision for income taxes..................  22    21    11
                                                              ---   ---   ---
   Provision for income taxes................................   5     5     4
                                                              ---   ---   ---
   Net income ...............................................  17%   16%    7%
                                                              ---   ---   ---
</TABLE>

                                      14
<PAGE>

Revenue

  License revenue increased to $130.9 million in 1999 from $84.5 million in
1998 and $56.7 million in 1997. Our growth in license revenue is attributable
primarily to growth in license fees from the LoadRunner, WinRunner and
TestDirector products, particularly for use by customers to test e-business
applications.

  Service revenue increased to $56.8 million or 30% of total revenue in 1999
from $36.6 million or 30% of total revenue in 1998 and $20.0 million or 26% of
total revenue in 1997. The absolute dollar increase in service revenue in 1999
compared to 1998 and 1997 was primarily due to the renewal of maintenance
contracts. We expect that service revenue will continue to increase in
absolute dollars as long as our customer base continues to grow.

 Cost of revenue

  License cost of revenue as a percentage of license revenue decreased to 6%
in 1999 from 7% in 1998 and 8% in 1997. License cost of revenue includes cost
of production personnel, product packaging and amortization of capitalized
software development costs. The decrease in license cost of revenue as a
percentage of license revenue in 1999 primarily reflected flat absolute dollar
amortization of capitalized software development costs during each of the
three years.

  Service cost of revenue increased to $18.6 million in 1999 from $11.8
million in 1998 and $6.2 million in 1997. As a percentage of service revenue,
it increased to 33% in 1999 from 32% in 1998 and 31% in 1997. Service cost of
revenue consists primarily of costs of providing customer technical support,
training and consulting. The increased service cost of revenue in 1999 as
compared to 1998 was primarily due to an increase in personnel-related costs
of $4.2 million reflecting growth in customer support headcount from 126 at
December 31, 1998 to 171 at December 31, 1999 and a $2.2 million increase in
training and consulting out-sourcing expense.

 Research and development, net

  For the year ended December 31, 1999, research and development, net was
$23.5 million, or 13% of total revenue, an increase from $16.9 million, or 14%
of total revenue in 1998, and $11.3 million, or 15% of total revenue in 1997.
The increase in absolute dollars in 1999 as compared to 1998 reflected an
increase in spending of $4.1 million due to growth in research and development
headcount from 166 at December 31, 1998 to 226 at December 31, 1999, as well
as $1.6 million of research grants received in 1998 from the Israeli Office of
the Chief Scientist, as compared to no grants received in 1999.

  In September of 1997, we acquired technologies from Dixon Software
Technology that we integrated into our load-testing products. As a result of
this purchase, in the third quarter of 1997, we recorded a one-time charge for
write off of in-process research and development and related expenses of $5.5
million.

  Research and development expense is reported net of research grants received
from the government of Israel, and includes royalty expense for obligations to
the government of Israel for sales of products developed under government-
funded research. No grants were obtained from the Office of the Chief
Scientist in the Israeli Ministry of Industry and Trade during 1999. Research
grants received amounted to $1.6 million in 1998 and $2.1 million in 1997. We
were not obligated to repay these grants; however, we agreed to pay royalties
at rates ranging from 2% to 5% of product sales resulting from the research,
up to the amount of the grants obtained and for certain grants up to 150% of
the grants obtained. Royalty expense under these agreements amounted to
approximately $2.7 million for each of the years ended December 31, 1999 and
1998, and $1.6 million for the year ended December 31, 1997. As of December
31, 1999, we had no outstanding royalty obligations. We have not applied for,
nor do we anticipate applying for, any future grants from the Office of the
Chief Scientist.

  During 1999 and 1998, no software development costs were capitalized because
the costs incurred subsequent to achieving technological feasibility and
before the general release of our products were not

                                      15
<PAGE>

significant. We capitalized $500,000 of software development costs during the
year ended December 31, 1997. Amortization charges included in cost of license
revenues were $585,000 in 1999 and $600,000 in each of 1998 and 1997. In
conjunction with the technology acquisition in 1997, we wrote off
approximately $250,000 of capitalized development costs as obsolete. At
December 31, 1999, we did not have any capitalized software development costs.
At December 31, 1998 we had a net balance of capitalized software development
costs of $585,000.

 Marketing and selling

  Marketing and selling expenses were $88.6 million, or 47% of total revenue,
in 1999, compared to $57.2 million, or 47% of total revenue, in 1998 and
$37.1 million, or 48% of total revenue, in 1997. The increase in expenses in
1999 as compared to 1998 was primarily due to an increase in personnel-related
costs of $14.6 million reflecting growth in headcount from 265 at December 31,
1998 to 377 at December 31, 1999, an increase in sales commissions of $4.8
million attributable to higher revenue, an increase in facilities and related
costs of $1.8 million and an increase in spending on marketing programs of
$7.5 million. We expect marketing and selling expenses to increase in absolute
dollars as total revenue increases, but these expenses may vary as a
percentage of revenue.

 General and administrative

  General and administrative expense increased to $11.2 million, or 6% of
total revenue in 1999, from $8.5 million, or 7% of total revenue in 1998 and
$6.6 million, or 9% of total revenue in 1997. The increase in expenses in 1999
as compared to 1998 was primarily due to an increase in personnel-related
costs of $1.6 million reflecting growth in headcount from 53 at December 31,
1998 to 70 at December 31, 1999.

 Other income, net

  Other income, net consists primarily of interest income and foreign exchange
gains and losses. The increase in other income, net to $6.0 million in 1999
from $4.6 million in 1998 reflected increased interest income on higher
average cash and investment balances.

 Provision for income taxes

  We have structured our operations in a manner designed to maximize income in
Israel where tax rate incentives have been extended to encourage foreign
investments. The tax holidays and rate reductions which we will be able to
realize under programs currently in effect expire at various dates through
2007. Future provisions for taxes will depend upon the mix of worldwide income
and the tax rates in effect for various tax jurisdictions. See Note 4 of Notes
to Consolidated Financial Statements and "--Risk Factors--We are subject to
the risk of increased taxes."

  We calculated the 1999 tax provision without the benefit of Conduct's pre-
acquisition net operating losses because we may not be able to offset these
losses against our future income.

 Merger related expenses

  In connection with the acquisition of Conduct, we incurred merger-related
expenses of approximately $2.0 million, primarily relating to legal and
accounting expenses, severance and the write-off of redundant facilities and
equipment.

 Net income

  We reported net income of $33.1 million in 1999, compared to net income of
$19.5 million in 1998 and $5.7 million in 1997.

                                      16
<PAGE>

Liquidity and Capital Resources

  At December 31, 1999, our principal source of liquidity consisted of $186.9
million of cash and investments compared to $130.7 million at December 31,
1998 and $92.4 million at December 31, 1997. The December 31, 1999 balance
included $137.1 million of short-term and $15.6 million of long-term
investments in high quality government and corporate securities.

  During 1999, we generated $61.1 million cash from operating activities,
compared to $39.5 million in 1998 and $17.1 million in 1997. The increase in
1999 compared to 1998 was due primarily to an increase in net income and
increases in accounts payable and accrued liabilities.

  Our primary investing activities were net purchases of investments in 1999
of $39.7 million compared to net proceeds from investments of $1.3 million in
1998 and $512,000 in 1997. We also purchased property and equipment, which
totaled $23.9 million in 1999, $15.0 million in 1998 and $11.9 million in
1997. Of these amounts, we spent $8.2 million in 1999, and $1.5 million 1998,
for purchase and renovation of our headquarters buildings in Sunnyvale,
California. We expect to spend an additional $3.5 million to complete the
construction in California. We spent $5.6 million in 1999, and $5.7 million in
1998, on construction of a new research and development facility in Israel.
Also in 1999, we spent $2.7 million to purchase additional land in Israel for
anticipated future expansion.

  Our primary financing activity consisted of issuances of common stock under
our stock option and stock purchase plans. Proceeds from issuance of stock
under these plans, net of notes receivable issued and collected from issuance
of stock, amounted to $20.4 million in 1999, $14.4 million in 1998 and $7.7
million in 1997.

  Assuming there is no significant change in our business, we believe that our
current cash and investment balances and cash flow from operations will be
sufficient to fund our cash needs for at least the next twelve months. We also
expect to satisfy our financing requirements through the incurrence of debt
from time to time. As of December 31, 1999, we did not have any debt
outstanding. We currently plan to issue up to $500,000,000 in principal amount
of convertible subordinated notes. If we complete this transaction, our
leverage will increase significantly. We may not succeed in completing this
transaction.

New Accounting Pronouncements

  In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position 98-1, "Accounting for the Cost of
Computer Software Developed or Obtained for Internal Use" ("SOP 98-1"). SOP
98-1 is effective for the financial statements of years beginning after
December 15, 1998. SOP 98-1 provides guidance over accounting for computer
software developed or obtained for internal use including the requirement to
capitalize specified costs and amortization of such costs. We adopted the
provisions of SOP 98-1 in our fiscal year ended December 31, 1999. Adoption
did not have a material effect on our financial statements.

  In March 1998, the AICPA issued Statement of Position 98-4, "Deferral of
Effective Date of a Provision of SOP 97-2" ("SOP 98-4"). SOP 98-4 defers for
one year the application of certain provisions of Statement of Position 97-2
"Software Revenue Recognition" ("SOP 97-2"). Different informal and non-
authoritative interpretations of certain provisions of SOP 97-2 have arisen
and, as a result, the AICPA issued Statement of Position 98-9, "Modification
of SOP 97-2, Software Revenue Recognition, with Respect to Certain
Transactions" ("SOP 98-9") in December 1998 which is effective for periods
beginning after March 15, 1999. SOP 98-9 extends the effective date of SOP 98-
4 and provides additional interpretive guidance. The adoption of SOP 97-2, SOP
98-4 and SOP 98-9 did not have a material effect on our results of operations,
financial position or cash flows.

  In June 1999, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 137, "Accounting for Derivative Instruments
and Hedging Activities--Deferral of the Effective Date of FASB Statement No.
133--an amendment of FASB Statement No. 133" ("SFAS 137"). SFAS 137

                                      17
<PAGE>

defers for one year the application of Statement of Accounting Standards No.
133, "Accounting for Derivative Instruments and Hedging Activities ("SFAS
133") to all fiscal quarters of fiscal years beginning after June 15, 2000.
SFAS 133 establishes accounting and reporting standards for derivative
instruments and hedging activities. The adoption of SFAS 133 and SFAS 137 have
not had and are not expected to have a material effect on our results of
operations, financial position or cash flows.

  In December 1999, the Securities and Exchange Commission issued Staff
Accounting Bulletin No. 101, "Revenue Recognition in Financial Statements,"
("SAB 101") which provides guidance on the recognition, presentation, and
disclosure of revenue in financial statements filed with the SEC. SAB 101
outlines the basic criteria that must be met to recognize revenue and provides
guidance for disclosures related to revenue recognition policies. We believe
that the impact of SAB 101 will not have a material effect on our results of
operations, financial position or cash flows.

Risk Factors

  In addition to the other information included in this Annual Report on Form
10-K, the following risk factors should be considered carefully in evaluating
us and our business.

  Our future success depends on our ability to respond to rapid market and
technological changes by introducing new products and to continually improve
the performance, features and reliability of our existing products and respond
to competitive offerings. Our business will suffer if we do not successfully
respond to rapid technological changes. The market for our software products
is characterized by:

  .  rapidly changing technology;

  .  frequent introduction of new products and enhancements to existing
     products by our competitors;

  .  increasing complexity and interdependence of Internet related
     applications;

  .  changes in industry standards and practices; and

  .  changes in customer requirements and demands.

  To maintain our competitive position, we must continue to enhance our
existing software testing and application performance management products and
to develop new products and services, functionality and technology that
address the increasingly sophisticated and varied needs of our prospective
customers. The development of new products and services, and enhancement of
existing products and services, entail significant technical and business
risks and require substantial lead-time and significant investments in product
development. If we fail to anticipate new technology developments, customer
requirements or industry standards, or if we are unable to develop new
products and services that adequately address these new developments,
requirements and standards in a timely manner, our products may become
obsolete, our ability to compete may be impaired and our revenues could
decline.

  We expect our quarterly revenues and operating results to fluctuate, which
may cause the price of our stock and the notes to decline. Our revenues and
operating results have varied in the past and are likely to vary significantly
from quarter to quarter in the future. These fluctuations are due to a number
of factors, many of which are outside of our control, including:

  .  fluctuations in demand for and sales of our products and services;

  .  our success in developing and introducing new products and the timing of
     new product introductions;

  .  our ability to introduce enhancements to our existing products in a
     timely manner;

  .  the introduction of new or enhanced products by our competitors and
     changes in the pricing policies of these competitors;

  .  the discretionary nature of our customers' purchase and budget cycles;

                                      18
<PAGE>

  .  the amount and timing of operating costs and capital expenditures
     relating to the expansion of our business;

  .  deferrals by our customers of orders in anticipation of new products or
     product enhancements; and

  .  the mix of our domestic and international sales, together with
     fluctuations in foreign currency exchange rates.

  In addition, the timing of our license revenues is difficult to predict
because our sales cycles are typically short and can vary substantially from
product to product and customer to customer. We base our operating expenses on
our expectations regarding future revenue levels. As a result, if total
revenues for a particular quarter are below our expectations, we could not
proportionately reduce operating expenses for that quarter.

  We have experienced seasonality in our revenues and earnings, with the
fourth quarter of the year typically having the highest revenue and earnings
for the year and higher revenue and earnings than the first quarter of the
following year. We believe that this seasonality results primarily from the
budgeting cycles of our customers and from the structure of our sales
commission program. We expect this seasonality to continue in the future.

  Due to these and other factors, we believe that period-to-period comparisons
of our results of operations are not necessarily meaningful and should not be
relied upon as indications of future performance. If our operating results are
below the expectations of investors or securities analysts, the price of our
common stock, and therefore the notes, could decline.

  We expect to face increasing competition in the future, which could cause
reduced sales levels and result in price reductions, reduced gross margins or
loss of market share. The market for our testing and application performance
management products and services is extremely competitive, dynamic and subject
to frequent technological changes. There are few substantial barriers to entry
in our market. In addition, the rapid growth and use of Internet for e-
business is a recent and emerging phenomenon. The Internet lowers the barriers
to entry for other companies to compete with us in the testing and application
performance management markets. As a result of the increased competition, our
success will depend, in large part, on our ability to identify and respond to
the needs of potential customers, and to new technological and market
opportunities, before our competitors identify and respond to these needs and
opportunities. We may fail to respond quickly enough to these needs and
opportunities.

  In the market for solutions for testing of applications, our principal
competitors include Compuware, Radview, Rational Software, RSW (a division of
Teradyne) and Segue Software. In the new and rapidly changing market for
application performance management solutions, our competitors include
providers of hosted services such as Keynote Systems and Service Metrics (a
division of Exodus Communications), and emerging application providers such as
Freshwater. In addition, we face potential competition in this market from
existing providers of testing solutions such as Segue. Finally, in both the
market for testing solutions and the market for application performance
management solutions, we face potential competition from established providers
of systems and network management software such as BMC Software and Computer
Associates.

  The software industry is increasingly experiencing consolidation, and this
could increase the resources available to our competitors and the scope of
their product offerings. Our competitors and potential competitors may
undertake more extensive marketing campaigns, adopt more aggressive pricing
policies or make more attractive offers to distribution partners and to
employees.

  If we fail to maintain our existing distribution channels and develop
additional channels in the future, our revenues will decline. We derive a
substantial portion of our revenues from sales of our products through
distribution channels such as system integrators, value-added resellers. We
expect that sales of our products through these channels will continue to
account for a substantial portion of our revenues for the foreseeable future.
We have also entered into private labelling arrangements with ASPs and an
enterprise software company who incorporate our products and services into
theirs. We may not experience increased revenues from these new channels,
which could harm our business.

                                      19
<PAGE>

  The loss of one or more of our system integrators, value-added resellers or
ASPs, or any reduction or delay in their sales of our products and services
could result in reductions in our revenue in future periods. In addition, our
ability to increase our revenue in the future depends on our ability to expand
our indirect distribution channels.

Our dependence on indirect distribution channels presents a number of risks,
including:

  .  each of our system integrators, value-added resellers and ASPs can cease
     marketing our products and services with limited or no notice and with
     little or no penalty;

  .  our existing system integrators, value-added resellers and ASPs may not
     be able to effectively sell any new products and services that we may
     introduce;

  .  we may not be able to replace existing or recruit additional system
     integrators, value-added resellers and ASPs if we lose any of our
     existing ones;

  .  our system integrators, value-added resellers and ASPs also offer
     competitive products and services from third parties;

  .  we may face conflicts between the activities of our indirect channels
     and our direct sales and marketing activities; and

  .  our system integrators, value-added resellers and ASPs may not give
     priority to the marketing of our products and services as compared to
     our competitors' products.

  In March 1999, we entered into an agreement with Tivoli Systems, a
subsidiary of IBM, for the joint development and marketing of a family of
products for enterprise application performance management, incorporating
elements of our technology, which would be marketed and sold only by Tivoli.
Under this agreement, we agreed that until October 2002, we will not license
this technology to any other party for purposes of developing a product
similar to any developed under this agreement. In addition, we agreed that
until October 2002, we will not enter into technology relationships to create
similar products with specified competitors of Tivoli as long as Tivoli
continues to agree to pay minimum royalties. These restrictions may limit our
ability to enter into new private labelling relationships. In addition, Tivoli
may not succeed in developing and selling these new products.

  We depend on strategic relationships and business alliances for continued
growth of our business. Our development, marketing and distribution strategies
rely increasingly on our ability to form strategic relationships with software
and other technology companies. These business relationships often consist of
cooperative marketing programs, joint customer seminars, lead referrals and
cooperation in product development. Many of these relationships are not
contractual and depend on the continued voluntary cooperation of each party
with us. Divergence in strategy or change in focus by, or competitive product
offerings by, any of these companies may interfere with our ability to
develop, market, sell or support our products, which in turn could harm our
business. Further, if these companies enter into strategic alliances with
other companies or are acquired, they could reduce their support of our
products. Our existing relationships may be jeopardized if we enter into
alliances with competitors of our strategic partners. In addition, one or more
of these companies may use the information they gain from their relationship
with us to develop or market competing products.

  If we are unable to manage our growth, our business may be harmed. Since
1991, we have experienced significant annual increases in revenue, employees
and number of product and service offerings. This growth has placed and, if it
continues, will place a significant strain on our management and our
financial, operational, marketing and sales systems. If we cannot manage our
growth effectively, our business, competitive position, operating results and
financial condition could suffer. Although we are implementing a variety of
new or expanded business and financial systems, procedures and controls,
including the improvement of our sales and

                                      20
<PAGE>

customer support systems, the implementation of these systems, procedures and
controls may not be completed successfully, or may disrupt our operations. Any
failure by us to properly manage these transitions could impair our ability to
attract and service customers and could cause us to incur higher operating
costs and experience delays in the execution of our business plan.

  The success of our business depends on the efforts and abilities of our
senior key personnel. We depend on the continued services and performance of
our senior management and other key personnel. We do not have long term
employment agreements with any of our key personnel. The loss of any of our
executive officers or other key employees could hurt our business.

  If we cannot hire qualified personnel, our ability to manage our business,
develop new products and increase our revenues will suffer. We believe that
our ability to attract and retain qualified personnel at all levels in our
organization is essential to the successful management of our growth. In
particular, our ability to achieve revenue growth in the future will depend in
large part on our success in expanding our direct sales force and in
maintaining a high level of technical consulting, training and customer
support. There is substantial competition for experienced personnel in the
software and technology industry. If we are unable to retain our existing key
personnel or attract and retain additional qualified individuals, we may from
time to time experience inadequate levels of staffing to perform services for
our customers. As a result, our growth could be limited due to our lack of
capacity to develop and market our products to our customers.

  We depend on our international operations for a substantial portion of our
revenues. Sales to customers located outside the United States have
historically accounted for a significant percentage of our revenue and we
anticipates that such sales will continue to be a significant percentage of
our revenue. As a percentage of our total revenues, sales to customers outside
the United States were approximately 34% in 1999, 35% in 1998 and 36% in 1997.
In addition, we have substantial research and development operations in
Israel. We face risks associated with our international operations, including:

  .  changes in taxes and regulatory requirements;

  .  difficulties in staffing and managing foreign operations;

  .  reduced protection for intellectual property rights in some countries;

  .  the need to localize products for sale in international markets;

  .  longer payment cycles to collect accounts receivable in some countries;

  .  seasonal reductions in business activity in other parts of the world in
     which we operate;

  .  political and economic instability; and

  .  economic downturns in international markets.

  Any of these risks could harm our international operations and cause lower
international sales. For example, some European countries already have laws
and regulations related to technologies used on the Internet that are more
strict than those currently in force in the United States. Any or all of these
factors could cause our business to be harmed.

  Because our research and development operations are primarily located in
Israel, we may be affected by volatile economic, political and military
conditions in that country and by restrictions imposed by that country on the
transfer of technology. Our operations depend on the availability of highly-
skilled and relatively low-cost scientific and technical personnel in Israel.
Our business also depends on trading relationships between Israel and other
countries. In addition to the risks associated with international sales and
operations generally, our operations could be adversely affected if major
hostilities involving Israel should occur or if trade between Israel and its
current trading partners were interrupted or curtailed.


                                      21
<PAGE>

  These risks are compounded due to the restrictions on our ability to
manufacture or transfer outside of Israel any technology developed under
research and development grants from the government of Israel, without the
prior written consent of the government of Israel. If we are unable to obtain
the consent of the government of Israel, we may not be able to take advantage
of strategic manufacturing and other opportunities outside of Israel. We have,
in the past, obtained royalty-bearing grants from various Israeli government
agencies. In addition, we participate in special Israeli government programs
that provide significant tax advantages. The loss of or any material decrease
in these tax benefits could negatively affect our financial results.

  We are subject to the risk of increased taxes. We have structured our
operations in a manner designed to maximize income in Israel where tax rate
incentives have been extended to encourage foreign investment. Our taxes could
increase if these tax rate incentives are not renewed upon expiration or tax
rates applicable to us are increased. Tax authorities could challenge the
manner in which profits are allocated among us and our subsidiaries, and we
may not prevail in any such challenge. If the profits recognized by our
subsidiaries in jurisdictions where taxes are lower became subject to income
taxes in other jurisdictions, our worldwide effective tax rate would increase.

  Our financial results may be negatively impacted by foreign currency
fluctuations. Our foreign operations are generally transacted through our
international sales subsidiaries. As a result, these sales and related
expenses are denominated in currencies other than the U.S. Dollar. Because our
financial results are reported in U.S. Dollars, our results of operations may
be harmed by fluctuations in the rates of exchange between the U.S. Dollar and
other currencies, including:

  .  a decrease in the value of Pacific Rim or European currencies relative
     to the U.S. Dollar, which would decrease our reported U.S. Dollar
     revenue, as we generate revenues in these local currencies and report
     the related revenues in U.S. Dollars; and

  .  an increase in the value of Pacific Rim, European or Israeli currencies
     relative to the U.S. Dollar, which would increase our sales and
     marketing costs in these countries and would increase research and
     development costs in Israel.

  We attempt to limit foreign exchange exposure through operational strategies
and by using forward contracts to offset the effects of exchange rate changes
on intercompany trade balances. This requires us to estimate the volume of
transactions in various currencies. We may not be successful in making these
estimates. If these estimates are overstated or understated during periods of
currency volatility, we could experience material currency gains or losses.

  Our ability to successfully implement our business strategy depends on the
continued growth of the Internet. In order for our business to be successful,
the Internet must continue to grow as a medium for conducting business.
However, as the Internet continues to experience significant growth in the
number of users and the complexity of Web-based applications, the Internet
infrastructure may not be able to support the demands placed on it or the
performance or reliability of the Internet might be adversely affected.
Security and privacy concerns may also slow the growth of the Internet.
Because our revenues ultimately depend upon the Internet generally, our
business may suffer as a result of limited or reduced growth.

  Our recent acquisition and any future acquisitions may be difficult to
integrate, disrupt our business, dilute stockholder value or divert the
attention of our management. We have acquired, and in the future we may
acquire or make investments in other companies with similar products and
technologies. For example, in November 1999, we completed our acquisition of
Conduct Ltd. In the event of any future acquisitions or investments, we could:

  .  issue stock that would dilute the ownership of our then-existing
     stockholders;

  .  incur debt;

  .  assume liabilities;

                                      22
<PAGE>

  .  incur amortization expense related to goodwill and other intangible
     assets; or

  .  incur large write-offs.

  If we fail to achieve the financial and strategic benefits of past and
future acquisitions, our operating results will suffer. Acquisitions and
investments involve numerous other risks, including:

  .  difficulties integrating the acquired operations, technologies or
     products with ours;

  .  failure to achieve targeted synergies;

  .  unanticipated costs and liabilities;

  .  diversion of management's attention from our core business;

  .  adverse effects on our existing business relationships with suppliers
     and customers or those of the acquired organization;

  .  difficulties entering markets in which we have no or limited prior
     experience; and

  .  potential loss of key employees, particularly those of the acquired
     organizations.

  The price of our common stock may fluctuate significantly, which may result
in losses for investors and possible lawsuits. The market price for our common
stock has been and may continue to be volatile. For example, during the 52-
week period ended March 17, 2000, the closing prices of our common stock as
reported on the Nasdaq National Market ranged from a high of $132.13 to a low
of $10.94. We expect our stock price to be subject to fluctuations as a result
of a variety of factors, including factors beyond our control. These factors
include:

  .  actual or anticipated variations in our quarterly operating results;

  .  announcements of technological innovations or new products or services
     by us or our competitors;

  .  announcements relating to strategic relationships or acquisitions;

  .  changes in financial estimates or other statements by securities
     analysts;

  .  changes in general economic conditions;

  .  conditions or trends affecting the software industry and the Internet;
     and

  .  changes in the economic performance and/or market valuations of other
     software and high-technology companies.

  Because of this volatility, we may fail to meet the expectations of our
stockholders or of securities analysts at some time in the future, and our
stock price could decline as a result.

  In addition, the stock market has experienced significant price and volume
fluctuations that have particularly affected the trading prices of equity
securities of many high technology companies. These fluctuations have often
been unrelated or disproportionate to the operating performance of these
companies. Any negative change in the public's perception of software or
Internet software companies could depress our stock price regardless of our
operating results.

  If we fail to adequately protect our proprietary rights and intellectual
property, we may lose a valuable asset, experience reduced revenues and incur
costly litigation to protect our rights. We rely on a combination of patents,
copyrights, trademark, service mark and trade secret laws and contractual
restrictions to establish and protect our proprietary rights in our products
and services. We will not be able to protect our intellectual property if we
are unable to enforce our rights or if we do not detect unauthorized use of
our intellectual property. Despite our precautions, it may be possible for
unauthorized third parties to copy our products and use information that we
regard as proprietary to create products that compete with ours. Some license
provisions protecting against

                                      23
<PAGE>

unauthorized use, copying, transfer and disclosure of our licensed programs
may be unenforceable under the laws of certain jurisdictions and foreign
countries. Further, the laws of some countries do not protect proprietary
rights to the same extent as the laws of the United States. To the extent that
we increase our international activities, our exposure to unauthorized copying
and use of our products and proprietary information will increase.

  In many cases, we enter into confidentiality or license agreements with our
employees and consultants and with the customers and corporations with whom we
have strategic relationships and business alliances. No assurance can be given
that these agreements will be effective in controlling access to and
distribution of our products and proprietary information. Further, these
agreements do not prevent our competitors from independently developing
technologies that are substantially equivalent or superior to our products.

  Litigation may be necessary in the future to enforce our intellectual
property rights and to protect our trade secrets. Litigation like this,
whether successful or unsuccessful, could result in substantial costs and
diversions of our management resources, either of which could seriously harm
our business.

  Third parties could assert that our products and services infringe their
intellectual property rights, which could expose us to litigation that, with
or without merit, could be costly to defend. We may from time to time be
subject to claims of infringement of other parties' proprietary rights. We
could incur substantial costs in defending ourselves sand our customers
against these claims. Parties making these claims may be able to obtain
injunctive or other equitable relief that could effectively block our ability
to sell our products in the United States and abroad and could result in an
award of substantial damages against us. In the event of a claim of
infringement, we may be required to obtain licenses from third parties,
develop alternative technology or to alter our products or processes or cease
activities that infringe the intellectual property rights of third parties. If
we are required to obtain licenses, we cannot be sure that we will be able to
do so at a commercially reasonable cost, or at all. Defense of any lawsuit or
failure to obtain required licenses could delay shipment of our products and
increase our costs. In addition, any such lawsuit could result in our
incurring significant costs or the diversion of the attention of our
management.

  Defects in our products may subject us to product liability claims and make
it more difficult for us to achieve market acceptance for these products,
which could harm our operating results. Our products may contain errors or
"bugs" that may be detected at any point in the life of the product. Any
future product defects discovered after shipment of our products could result
in loss of revenues and a delay in the market acceptance of these products
that could adversely impact our future operating results.

  In selling our products, we frequently rely on "shrink wrap" or "click wrap"
licenses that are not signed by licensees. Under the laws of various
jurisdictions, the provisions in these licenses limiting our exposure to
potential product liability claims may be unenforceable. We currently carry
errors and omissions insurance against such claims, however, we cannot assure
you that this insurance will continue to be available on commercially
reasonable terms, or at all, or that this insurance will provide us with
adequate protection against product liability and other claims. In the event
of a products liability claim, we may be found liable and required to pay
damages which would seriously harm our business.

  We have adopted anti-takeover defenses that could delay or prevent an
acquisition of our company, including an acquisition that would be beneficial
to our stockholders. Our Board of Directors has the authority to issue up to
5,000,000 shares of preferred stock and to determine the price, rights,
preferences and privileges of those shares without any further vote or action
by the stockholders. The rights of the holders of common stock will be subject
to, and may be adversely affected by, the rights of the holders of any
preferred stock that may be issued in the future. The issuance of preferred
stock, while providing desirable flexibility in connection with possible
acquisitions and other corporate purposes, could have the effect of making it
more difficult for a third party to acquire a majority of our outstanding
voting stock. We have no present plans to issue shares of preferred stock.
Furthermore, certain provisions of our Certificate of Incorporation and of
Delaware law may have the effect of delaying or preventing changes in our
control or management, which could adversely affect the market price of our
common stock.


                                      24
<PAGE>

  Leverage and debt service obligations may adversely affect our cash
flow. Upon completion of the currently proposed offering of up to $500,000,000
principal amount of convertible subordinated notes, we will have a substantial
amount of outstanding indebtedness, primarily the notes. There is the
possibility that we may be unable to generate cash sufficient to pay the
principal of, interest on and other amounts due in respect of our indebtedness
when due. Our leverage could have significant negative consequences,
including:

  .  increasing our vulnerability to general adverse economic and industry
     conditions;

  .  requiring the dedication of a substantial portion of our expected cash
     flow from operations to service our indebtedness, thereby reducing the
     amount of our expected cash flow available for other purposes, including
     capital expenditures; and

  .  limiting our flexibility in planning for, or reacting to, changes in our
     business and the industry in which we compete.

Item 7a. Quantitative and Qualitative Disclosures about Market Risk

  Interest rate risk. Our exposure to market rate risk for changes in interest
is limited to our investment portfolio. Derivative financial instruments are
not a part of our investment policy. We place our investments with high
quality issuers and, by policy, limit the amount of credit exposure to any one
issuer or issue. In addition, we have classified all of our investments as
"held to maturity." This classification does not expose the consolidated
statement of income or balance sheet to fluctuation in interest rates. At
December 31, 1999, $113.3 million, or 61%, of our cash, cash equivalents and
investment portfolio carried at a maturity of less than 90 days, and
$171.3 million, or 92% carried a maturity of less than one year. All
investments mature, by policy, in less than two years. The effect of a 10%
rate decline would not be material on the portfolio. Information about our
investment portfolio is presented in Note 1 to the Consolidated Financial
Statements included in this Annual Report on Form 10-K and is incorporated
herein by reference.

  Foreign currency risk. A portion of our business is conducted in currencies
other than the U.S. Dollar. Our operating expenses in each of these countries
are in the local currencies, which mitigates a significant portion of the
exposure related to local currency revenues.

  We have entered into forward foreign exchange contracts to hedge amounts due
from select subsidiaries denominated in foreign currencies, mainly Europe and
the Pacific Rim, against fluctuations in exchange rates. We have not entered
into forward foreign exchange contracts for speculative or trading purposes.
Our accounting policies for these contracts are based on our designation of
the contracts as hedging transactions. The criteria we use for designating a
contract as a hedge considers the contract's effectiveness in reducing risk by
matching hedging instruments to underlying transactions. Gains and losses on
forward foreign exchange contracts are recognized in income in the same period
as gains and losses on the underlying transactions. The effect of an immediate
10% change in exchange rates would not have a material impact on our operating
results or cash flows. At December 31, 1999, we had outstanding forward
foreign exchange contracts to sell $10.7 million in currencies with a fair
value of $10.6 million.

Item 8. Financial Statements and Supplementary Data

  Financial statements required pursuant to this Item are presented beginning
on page F-1 of this report.

Item 9. Changes in and Disagreements with Accountants on Accounting and
Financial Disclosure

  During the 24 month period preceding December 31, 1999 we neither changed
accountants nor had disagreements with our accountants on any matter of
accounting principles or practices, financial statement disclosure or auditing
scope and procedures.

                                      25
<PAGE>

                                   PART III

  Certain information required by Part III is omitted from this Annual Report
on Form 10-K because we will file a definitive proxy statement within 120 days
after the end of our fiscal year pursuant to Regulation 14A for our annual
meeting of stockholders, currently scheduled for May 24, 2000, and the
information included in the proxy statement is incorporated herein by
reference.

Item 10. Directors and Executive Officers of the Registrant

  The information concerning our officers required by this Item is
incorporated by reference to the section of Part I of this Annual Report on
Form 10-K entitled "Item 1. Business--Personnel." The information concerning
our directors required by this Item is incorporated by reference to the
information under the heading "Election of Directors--Nominees" in our proxy
statement.

Item 11. Executive Compensation

  The information required by this Item is incorporated by reference to our
proxy statement under the heading "Executive Compensation."

Item 12. Security Ownership of Certain Beneficial Owners and Management

  The information required by this Item is incorporated by reference to our
proxy statement under the heading "Security Ownership of Certain Beneficial
Owners and Management."

Item 13.  Certain Relationships and Related Transactions

  The information required by this Item is incorporated by reference to our
proxy statement under the heading "Certain Transactions."

                                      26
<PAGE>

                                    PART IV

Item 14. Exhibits, Financial Statement Schedules and Reports on Form 8-K

(a) The following documents are filed as a part of this report:

 1. Financial Statements.

  The following financial statements of Mercury Interactive Corporation are
filed as a part of this report:

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
   <S>                                                                     <C>
   Report of Independent Accountants.....................................  F-1
   Consolidated Balance Sheets at December 31, 1999 and 1998.............  F-2
   Consolidated Statements of Operations for the years ended December 31,
    1999, 1998 and 1997..................................................  F-3
   Consolidated Statements of Stockholders' Equity for the years ended
    December 31, 1999, 1998 and 1997.....................................  F-4
   Consolidated Statements of Cash Flows for the years ended December 31,
    1999, 1998 and 1997..................................................  F-5
   Notes to Consolidated Financial Statements............................  F-6
</TABLE>

 2. Schedules

  The following financial statement schedule is filed as part of this Form 10-
K:

  Schedule II--Valuation and Qualifying Accounts for the Three Years Ended
December 31, 1999

  Financial statement schedules not listed above have been omitted because they
are not applicable or the required information is shown in the financial
statements or notes thereto.

 3. Exhibits

<TABLE>
<CAPTION>
 Exhibit
 Number                                  Description
 -------                                 -----------
 <C>          <S>
 3.1(1)       Certificate of Incorporation of Registrant, as amended and
              restated to date.
 3.2(7)       Certificate of Amendment of the Restated Certificate of
              Incorporation.
 3.3(1)       By-laws of Registrant, as amended to date.
 10.1(6),(2)  1989 Stock Option Plan and forms of Incentive Stock Option
              Agreement and Nonstatutory Stock Option Agreement.
 10.2(1)      Form of Directors' and Officers' Indemnification Agreement.
 10.3(6),(2)  Form of 1998 Employee Stock Purchase Plan and form of Agreements.
 10.4(1)      401(k) Plan.
 10.5(2),(3)  1994 Directors' Stock Option Plan and form of Agreements.
 10.6(4)      Preferred Share Purchase Rights Agreement.
 10.7(5)      1996 Supplemental Stock Plan.
 10.10(6),(2) 1999 Stock Option Plan
 10.11(8)     Form of Change of Control Agreements entered into by the Company
              with the Chairman, the Chief Executive Officer, the Chief
              Financial Officer, Chief Operating Officer and the President of
              European Operations.
 10.12(4)     Amendment to Rights Agreement dated March 31, 1999.
 10.13        Share Exchange Agreement among the Company, Conduct, Ltd.,
              Conduct Software Technologies, Inc. and the shareholders of
              Conduct, Ltd. dated November 23, 1999.
 21.1         Subsidiaries of Registrant.
 23.1         Consent of Independent Accountants.
</TABLE>

                                       27
<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number             Description
 -------            -----------
 <C>     <S>
 24.1    Power of Attorney (see page 29).
 27.1    Financial Data Schedule.
</TABLE>
- --------
(1) Exhibits 3.1, 3.3, 10.2, and 10.4 are incorporated by reference to
    Exhibits 3.3, 3.4, 10.2, and 10.12, respectively, filed in response to
    Item 16(a), "Exhibits," of the Registrant's Registration Statement on
    Form S-1, as amended (File No. 33-68554), which was declared effective on
    October 29, 1993.

(2) Designates management contract or compensatory plan arrangements required
    to be filed as an exhibit of this Annual Report on Form 10-K.

(3) Exhibit 10.5 is incorporated by reference to Exhibit 10.1 filed with the
    Form 10-Q for the three month period ended September 30, 1994.

(4) Exhibit 10.6 is incorporated by reference to the Exhibit 1 to the
    Company's Form 8-A, filed with the Securities and Exchange Commission on
    July 9, 1996, as amended by Amendment No. 1 to Form 8-A filed with the SEC
    on April 2, 1999.

(5) Exhibit 10.7 is incorporated by reference to Exhibit 4.2 to the Company's
    Registration Statement on Form S-8, No. 333-09913, filed with the
    Securities and Exchange Commission on August 9, 1996.

(6) Exhibits 10.1, 10.3, and 10.10 are incorporated by reference to Exhibits
    4.1, 4.3, and 4.2, respectively, filed with the Company's Registration
    Statement on Form S-8, No. 333-62125, filed with the Securities and
    Exchange Commission on August 24, 1998.

(7) Exhibit 3.3 is incorporated by reference to Exhibit 4.1 filed with the
    Company's Registration Statement on Form S-3, No. 333-95097, filed with
    the Securities and Exchange Commission on January 20, 2000.

(8) Exhibit 10.10 is incorporated by reference to Exhibit 10.26 filed with the
    Form 10-K for the year ended December 31, 1999.

(b) Reports on Form 8-K

  No report on Form 8-K was filed during the fourth quarter of the year ended
December 31, 1999.

                                      28
<PAGE>

                                  SIGNATURES

  Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant, Mercury Interactive Corporation, a
corporation organized and existing under the laws of the State of Delaware,
has duly caused this Report to be signed on its behalf by the undersigned,
thereunto duly authorized.

                                          Mercury Interactive Corporation

Dated: March 20, 2000                     By:     /s/ Sharlene Abrams
                                             __________________________________
                                                    Sharlene Abrams,
                                              Chief Financial Officer, Vice
                                                       President of
                                               Finance and Administration

  KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints jointly and severally, Amnon Landan and/or
Sharlene Abrams and each one of them, his or her attorneys-in-fact, each with
the power of substitution, for him or her in any and all capacities, to sign
any and all amendments to this Annual Report on Form 10-K and to file the
same, with exhibits thereto and other documents in connection therewith, with
the Securities and Exchange Commission, hereby ratifying and confirming all
that each of said attorneys-in-fact, or his or her substitute or substitutes,
may do or cause to be done by virtue hereof.

<TABLE>
<CAPTION>
             Signature                             Title                    Date
             ---------                             -----                    ----

<S>                                  <C>                               <C>
        /s/ Amnon Landan             President, Chief Executive        March 20, 2000
____________________________________  Officer
            Amnon Landan              (Principal Executive Officer) and
                                      Chairman of the Board of
                                      Directors

      /s/ Sharlene Abrams            Chief Financial Officer, Vice     March 20, 2000
____________________________________  President, Finance and
          Sharlene Abrams             Administration (Principal
                                      Financial and Accounting
                                      Officer)

        /s/ Igal Kohavi              Director                          March 20, 2000
____________________________________
            Igal Kohavi

        /s/ Yair Shamir              Director                          March 20, 2000
____________________________________
            Yair Shamir

        /s/ Giora Yaron              Director                          March 20, 2000
____________________________________
            Giora Yaron
</TABLE>


                                      29
<PAGE>

                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of
Mercury Interactive Corporation

  In our opinion, the consolidated financial statements listed in the index
appearing under Item 14(a)(1) present fairly, in all material respects, the
financial position of Mercury Interactive Corporation and its subsidiaries
(the "Company") at December 31, 1999 and 1998, and the results of their
operations and their cash flows for each of the three years in the period
ended December 31, 1999, in conformity with accounting principles generally
accepted in the United States. In addition, in our opinion, the financial
statement schedule listed in the index appearing under Item 14(a)(2) presents
fairly, in all material respects, the information set forth therein when read
in conjunction with related consolidated financial statements. These financial
statements and financial statement schedule are the responsibility of the
Company's management; our responsibility is to express an opinion on these
financial statements and financial statement schedule based on our audits. We
conducted our audits of these statements in accordance with auditing standards
generally accepted in the United States which require that we plan and perform
the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on
a test basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for the
opinion expressed above.

PricewaterhouseCoopers LLP

San Jose, California
January 20, 2000, except as to Note 9, which is as of February 11, 2000.

                                      F-1
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

                          CONSOLIDATED BALANCE SHEETS
                    (in thousands, except per share amounts)

<TABLE>
<CAPTION>
                                                              December 31,
                                                            ------------------
                                                              1999      1998
                                                            --------  --------
<S>                                                         <C>       <C>
                          ASSETS
Current assets:
  Cash and cash equivalents................................ $113,346  $ 96,836
  Short-term investments...................................   57,981    13,130
  Trade accounts receivable (net of allowance for doubtful
   accounts and sales returns of $5,533 and $3,623)........   40,399    27,903
  Other receivables........................................    6,325     6,012
  Prepaid expenses and other current assets................   16,702    11,685
                                                            --------  --------
    Total current assets...................................  234,753   155,566
Long-term investments......................................   15,555    20,697
Property and equipment, net................................   46,910    28,423
                                                            --------  --------
                                                            $297,218  $204,686
                                                            ========  ========
           LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable......................................... $  8,469  $  4,422
  Accrued liabilities......................................   33,433    18,236
  Income taxes payable.....................................   19,945    11,498
  Deferred revenue.........................................   35,840    24,122
                                                            --------  --------
    Total current liabilities..............................   97,687    58,278
                                                            --------  --------
Commitments and contingencies (Note 5)
Stockholders' equity:
  Common stock, par value $.002 per share, 120,000 shares
   authorized; 78,090 and 73,990 shares issued and
   outstanding.............................................      156       148
  Capital in excess of par value...........................  148,826   128,428
  Notes receivable from issuance of stock..................   (5,090)   (5,130)
  Accumulated other comprehensive loss.....................   (1,242)     (775)
  Retained earnings........................................   56,881    23,737
                                                            --------  --------
    Total stockholders' equity.............................  199,531   146,408
                                                            --------  --------
                                                            $297,218  $204,686
                                                            ========  ========
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.


                                      F-2
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

                     CONSOLIDATED STATEMENTS OF OPERATIONS
                    (in thousands, except per share amounts)

<TABLE>
<CAPTION>
                                                       Year ended December 31,
                                                      -------------------------
                                                        1999     1998    1997
                                                      -------- -------- -------
<S>                                                   <C>      <C>      <C>
Revenue:
  License............................................ $130,900 $ 84,450 $56,683
  Service............................................   56,800   36,550  20,017
                                                      -------- -------- -------
    Total revenue....................................  187,700  121,000  76,700
                                                      -------- -------- -------
Cost of revenue:
  License............................................    7,736    6,291   4,351
  Service............................................   18,642   11,757   6,225
                                                      -------- -------- -------
    Total cost of revenue............................   26,378   18,048  10,576
                                                      -------- -------- -------
Gross profit ........................................  161,322  102,952  66,124
                                                      -------- -------- -------
Operating expenses:
  Research and development, net......................   23,484   16,907  11,333
  Write off of in-process research and development
   and related expenses..............................      --       --    5,500
  Marketing and selling..............................   88,609   57,243  37,073
  General and administrative.........................   11,242    8,466   6,642
  Merger related expenses............................    2,000      --      --
                                                      -------- -------- -------
    Total operating expenses.........................  125,335   82,616  60,548
                                                      -------- -------- -------
Income from operations...............................   35,987   20,336   5,576
Other income, net....................................    6,026    4,640   3,083
                                                      -------- -------- -------
Income before provision for income taxes.............   42,013   24,976   8,659
Provision for income taxes...........................    8,869    5,451   2,927
                                                      -------- -------- -------
Net income........................................... $ 33,144 $ 19,525 $ 5,732
                                                      ======== ======== =======
Net income per share (basic)......................... $   0.44 $   0.28 $  0.09
                                                      ======== ======== =======
Net income per share (diluted)....................... $   0.39 $   0.25 $  0.08
                                                      ======== ======== =======
Weighted average common shares (basic)...............   76,112   70,654  65,494
                                                      ======== ======== =======
Weighted average common shares and equivalents
 (diluted)...........................................   85,208   78,818  68,458
                                                      ======== ======== =======
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                      F-3
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                                 (in thousands)

<TABLE>
<CAPTION>
                                        Capital    Notes
                                           in    receivable  Retained    Accumulated
                          Common stock   excess     from     earnings/      other
                          -------------  of par   issuance  accumulated comprehensive Stockholders' Comprehensive
                          Shares Amount  value    of stock    deficit       loss         equity     income (loss)
                          ------ ------ -------- ---------- ----------- ------------- ------------- -------------
<S>                       <C>    <C>    <C>      <C>        <C>         <C>           <C>           <C>
Balance at December 31,
 1996...................  64,226  $128  $100,539      --      $(1,520)     $   (99)     $ 99,048
Net income..............     --    --        --       --        5,732          --          5,732       $ 5,732
Currency translation
 adjustments............     --    --        --       --          --          (325)         (325)         (325)
                                                                                                       -------
Comprehensive income....                                                                               $ 5,407
                                                                                                       =======
Stock issued under stock
 option and employee
 stock purchase plans...   2,728     6     7,560      --          --           --          7,566
Pooling of interests
 acquisition............     --    --         99      --          --           --             99
                          ------  ----  --------  -------     -------      -------      --------
Balance at December 31,
 1997...................  66,954   134   108,198      --        4,212         (424)      112,120
Net income..............     --    --        --       --       19,525          --         19,525        19,525
Currency translation
 adjustments............     --    --        --       --          --          (351)         (351)         (351)
                                                                                                       -------
Comprehensive income....                                                                               $19,174
                                                                                                       =======
Stock issued under stock
 option and employee
 stock purchase plans...   6,300    12    16,266   (5,130)        --           --         11,148
Pooling of interests
 acquisition............     736     2     3,964      --          --           --          3,966
                          ------  ----  --------  -------     -------      -------      --------
Balance at December 31,
 1998...................  73,990   148   128,428   (5,130)     23,737         (775)      146,408
Net income..............     --    --        --       --       33,144          --         33,144        33,144
Currency translation
 adjustments............     --    --        --       --          --          (467)         (467)         (467)
                                                                                                       -------
Comprehensive income....                                                                               $32,677
                                                                                                       =======
Collection of notes
 receivable.............     --    --        --       387         --           --            --
Stock issued under stock
 option and employee
 stock purchase plans...   4,100     8    20,398     (347)        --           --         20,446
                          ------  ----  --------  -------     -------      -------      --------
Balance at December 31,
 1999...................  78,090  $156  $148,826  $(5,090)    $56,881      $(1,242)     $199,531
                          ======  ====  ========  =======     =======      =======      ========
</TABLE>


  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                      F-4
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)

<TABLE>
<CAPTION>
                                                   Year ended December 31,
                                                  ----------------------------
                                                    1999      1998      1997
                                                  --------  --------  --------
<S>                                               <C>       <C>       <C>
Cash flows from operating activities:
  Net income..................................... $ 33,144  $ 19,525  $  5,732
  Adjustments to reconcile net income to net cash
   provided by (used in) operating activities:
  Depreciation and amortization..................    6,063     4,223     3,775
  Loss on retirement of property and equipment...      121       --        --
  Deferred income taxes..........................   (2,802)   (1,840)      270
  Changes in assets and liabilities:
    Trade accounts receivable....................  (12,349)   (4,006)   (7,240)
    Other receivables............................     (428)   (4,034)     (730)
    Prepaid expenses and other current assets....   (3,277)   (1,879)      857
    Accounts payable.............................    4,076       803     1,923
    Accrued liabilities..........................   16,164     5,309     5,141
    Income taxes payable.........................    8,688     8,373     2,485
    Deferred revenue.............................   11,718    13,030     4,936
                                                  --------  --------  --------
      Net cash provided by operating activities..   61,118    39,504    17,149
                                                  --------  --------  --------
Cash flows from investing activities:
  Maturity of investments........................   28,616    35,128    35,640
  Purchases of investments.......................  (68,325)  (33,826)  (35,128)
  Acquisition of property and equipment, net.....  (23,897)  (15,040)  (11,927)
  Capitalization of software development costs ..      --        --       (500)
                                                  --------  --------  --------
      Net cash used in investing activities......  (63,606)  (13,738)  (11,915)
                                                  --------  --------  --------
Cash flows from financing activities:
  Proceeds from issuance of common stock, net....   20,406    19,494     7,665
  Notes receivable from issuance of stock........     (347)   (5,130)      --
  Notes receivable collected from issuance of
   stock.........................................      387       --        --
                                                  --------  --------  --------
      Net cash provided by financing activities
       ..........................................   20,446    14,364     7,665
                                                  --------  --------  --------
Effect of exchange rate changes on cash..........   (1,448)     (585)      (28)
                                                  --------  --------  --------
Net increase in cash.............................   16,510    39,545    12,871
Cash and cash equivalents at beginning of year...   96,836    57,291    44,420
                                                  --------  --------  --------
Cash and cash equivalents at end of year......... $113,346  $ 96,836  $ 57,291
                                                  ========  ========  ========
Supplemental Disclosure:
Cash paid during the year for income taxes....... $  1,354  $  1,365  $  2,083
</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.

                                      F-5
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1--THE COMPANY AND ITS SIGNIFICANT ACCOUNTING POLICIES

  Mercury Interactive Corporation (the "Company") develops, markets and
supports performance management solutions that enable businesses to test and
monitor their Internet and other applications. The Company operates in one
industry segment. (See Note 7 for geographic reporting.) No customer accounted
for more than 10% of revenue in 1999, 1998 or 1997.

  The Company acquired Conduct Ltd. on November 30, 1999, which was accounted
for as a pooling of interests. The consolidated financial statements for each
of the three years ended December 31, 1999, 1998 and 1997 and the accompanying
notes reflect the results of operations as if the acquired entity was a wholly
owned subsidiary since its inception (see Note 8).

 Basis of presentation

  The Company has a wholly owned research and development and sales subsidiary
incorporated in Israel and sales subsidiaries in Brazil, Canada, Europe, South
Africa and the Pacific Rim for marketing, distribution and support of
products. The consolidated financial statements include the accounts of the
Company and its wholly owned subsidiaries. All significant intercompany
accounts and transactions have been eliminated.

  In January 2000, the Company's Board of Directors approved a two-for-one
split of the Company's common stock, which was distributed as a stock dividend
to the Company's stockholders, on February 11, 2000. All share and per share
amounts reflect the effect of the split.

 Management Estimates

  The preparation of financial statements in conformity with accounting
principles generally accepted in the United States requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.

 Foreign currency translation

  The functional currency of the Company's subsidiary in Israel is the U.S.
dollar. Assets and liabilities in Israel are translated at year-end exchange
rates, except for property and equipment, which is translated at historical
rates. Revenues and expenses are translated at average exchange rates in
effect during the year, except for costs related to those balance sheet items,
which are translated at historical rates. Foreign currency translation gains
and losses, which have not been material to date for this subsidiary, are
included in the consolidated statement of operations.

  The functional currencies of all other subsidiaries are the local
currencies. Accordingly, all assets and liabilities of these subsidiaries are
translated at the current exchange rate at the end of the period and revenues
and costs at average exchange rates in effect during the period. The gains and
losses from translation of these subsidiaries' financial statements are
recorded directly into a separate component of stockholders' equity. Net gains
and losses resulting from foreign exchange transactions were not significant
during any of the periods presented.

  The Company enters into forward foreign exchange contracts to hedge foreign
currency denominated intercompany payables against fluctuations in exchange
rates. The Company does not enter into forward foreign exchange contracts for
speculative or trading purposes. The criteria used for designating a contract as
a hedge considers the contract's effectiveness in reducing risk by matching
hedging instruments to underlying transactions. Gains and losses on forward
foreign exchange contracts are recognized in income in the same period as gains
and losses on the underlying transactions. At December 31, 1999, the Company had
outstanding forward foreign exchange contracts to sell $10.7 million in
currencies with a fair value of $10.6 million.

                                      F-6
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


 Cash and cash equivalents

  The Company considers all highly liquid debt instruments purchased with an
original maturity of three months or less to be cash equivalents.

 Short-term and long-term investments

  The Company considers all investments with remaining maturities of less than
one year to be short-term investments and all investments with remaining
maturities greater than one year to be long-term investments. In accordance
with Statement of Financial Accounting Standards No. 115, "Accounting for
Certain
Investments in Debt and Equity Securities," the Company has categorized its
marketable securities as "held to maturity" securities.

  The investments, which all have contractual maturities of less than two
years, are carried at cost plus accrued interest. Realized gains or losses are
determined based on the specific identification method and are reflected in
other income.

  The portfolio of short-term and long-term investments (including cash and
cash equivalents) consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                                December 31,
                                                              -----------------
                        Investment Type                         1999     1998
                        ---------------                       -------- --------
   <S>                                                        <C>      <C>
   Cash and interest bearing demand deposits................. $ 34,275 $ 21,655
   Corporate debt securities.................................   86,593   56,472
   Municipal securities......................................   52,670   50,936
   U.S. treasury and agency securities.......................   13,344    1,600
                                                              -------- --------
       Total................................................. $186,882 $130,663
                                                              ======== ========
</TABLE>

 Revenue recognition

  Revenues are derived from product licensing fees, and from maintenance
support services, training and consulting. Revenue from product licensing fees
is recognized upon shipment and resolution of any material vendor obligations.
Products shipped, for which material vendor obligations exist, are recorded as
deferred revenue. Service revenue from customer maintenance fees for ongoing
customer support and product updates is recognized ratably over the period of
the contract. Payments for maintenance fees are generally made in advance, are
nonrefundable and are classified as deferred revenue. Revenues for training
and consulting services are recognized as the services are provided.

 Property and equipment

  Property and equipment are stated at cost. Depreciation and amortization are
provided using the straight-line method over the estimated economic lives of
assets, which are five to seven years for office furniture and equipment,
three to five years for computers and related equipment, four to ten years for
leasehold improvements, or the term of the lease, whichever is shorter, and
thirty years for buildings.

 Long-lived assets

  The Company evaluates the recoverability of its long-lived assets in
accordance with Statement of Financial Accounting Standards No. 121,
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets
to be Disposed Of" ("SFAS 121"). SFAS 121 requires recognition of impairment
of long-lived assets in the event the net book value of such assets exceeds
the future undiscounted cash flows attributable to such assets. No such
impairments have been identified to date. The Company assesses the impairment
of long-lived assets when events or changes in circumstances indicate that the
carrying value of an asset may not be recoverable.

                                      F-7
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


 Research and development

  In accordance with Statement of Financial Accounting Standards No. 86,
"Accounting for Costs of Computer Software to be Sold, Leased or Otherwise
Marketed," all costs incurred to establish the technological feasibility of a
computer product to be sold, leased or otherwise marketed are expensed as
research and development costs. Costs incurred subsequent to the establishment
of technological feasibility, and prior to the general release of the product
to the public are capitalized. Amortization of capitalized software
development costs is provided on a product-by-product basis using the
straight-line method over the estimated economic life of the products of two
years.

  In 1999 and 1998, no software development costs were capitalized because the
costs incurred subsequent to achieving techological feasibility and prior to
the general release of the products were not significant. The Company
capitalized $500,000 of software development costs during the year ended
December 31, 1997. Amortization charges included in cost of license revenues
were $585,000 in 1999 and $600,000 in each of 1998 and 1997. In conjunction
with the technology acquisition in 1997 approximately $250,000 of capitalized
development costs were written off as obsolete in the year ended December 31,
1997. At December 31, 1999, the Company did not have any capitalized software
development costs. At December 31, 1998, the net balance of capitalized
software development costs was $585,000.

  Research and development expense is reported net of research grants received
from the government of Israel, and includes royalty expense for obligations to
the government of Israel for sales of products developed under government-
funded research. No grants were obtained from the Office of the Chief
Scientist in the Israeli Ministry of Industry and Trade ("the Chief
Scientist") during 1999. Research grants received amounted to $1.6 million in
1998 and $2.1 million in 1997. The Company was not obligated to repay these
grants; however, the Company agreed to pay royalties at rates ranging from 2%
to 5% of product sales resulting from the research, up to the amount of the
grants obtained and for certain grants up to 150% of the grants obtained.
Royalty expense under these agreements amounted to approximately $2.7 million
for each of the years ended December 31, 1999 and 1998, and $1.6 million for
the year ended December 31, 1997. As of December 31, 1999, the Company had no
outstanding royalty obligations. The Company has not applied for, nor does it
anticipate applying for, any future Chief Scientist grants.

 Stock-based compensation

  The Company accounts for stock-based compensation using the intrinsic value
method presented in Accounting Principles Board Opinion (APB) No. 25,
"Accounting for Stock Issued to Employees" and related interpretations. The
Company's policy is to grant options with an exercise price equal to the
quoted market price of its stock on the grant date. Accordingly, no
compensation cost has been recognized in the statements of operations.
Additional pro forma disclosure is provided as required under Statement of
Financial Accounting Standard No. 123 ( "SFAS 123"), "Accounting for Stock-
based Compensation" (see Note 3).

 Concentration of risks

  Financial instruments, which potentially subject the Company to
concentrations of credit risk, consist principally of cash equivalents,
investments and accounts receivable. The Company invests primarily in money
market accounts and marketable securities and places its investments with high
quality financial, government or corporate institutions. Accounts receivables
are derived from sales to customers located primarily in the U.S., Canada,
Europe, Pacific Rim and Israel. The Company performs ongoing credit
evaluations of its customers and to date has not experienced any material
losses.

                                      F-8
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


 Net income per share

  Earnings per share are calculated in accordance with the provisions of
Statement of Accounting Standards No. 128, "Earnings per Share," ("SFAS 128").
SFAS 128 requires the reporting of both basic earnings per share, which is the
weighted-average number of common shares outstanding, and diluted earnings per
share, which includes the weighted-average common shares outstanding and all
dilutive potential common shares outstanding. For the years ended December 31,
1999, 1998 and 1997, dilutive potential common shares outstanding reflects
shares issuable under our stock option plans. Share and per share amounts
reflect the effect of the two-for-one stock split distributed to stockholders
on February 11, 2000. The following table summarizes the Company's earnings
per share computations for the years ended December 31, 1997, 1998 and 1999
(in thousands, except per share amounts):

<TABLE>
<CAPTION>
                                                                        Earnings
                                                          Net   Average   per
                                                        income  shares   share
                                                        ------- ------- --------
   <S>                                                  <C>     <C>     <C>
   December 31, 1997:
     Basic earnings per share.......................... $ 5,732 65,494   $0.09
     Dilutive adjustments..............................     --   2,964
                                                        ------- ------
     Diluted earnings per share........................ $ 5,732 68,458   $0.08
                                                        ------- ------
    December 31, 1998:
     Basic earnings per share.......................... $19,525 70,654   $0.28
     Dilutive adjustments..............................     --   8,164
                                                        ------- ------
     Diluted earnings per share........................ $19,525 78,818   $0.25
                                                        ------- ------
    December 31, 1999:
     Basic earnings per share.......................... $33,144 76,112   $0.44
     Dilutive adjustments..............................     --   9,096
                                                        ------- ------
     Diluted earnings per share........................ $33,144 85,208   $0.39
                                                        ======= ======
</TABLE>

  At December 31, 1999, 1998, and 1997, options to purchase a total of 504,000
shares of common stock with an average exercise price of $38.50, 280,000
shares of common stock with an average exercise price of $9.62, and 941,092
shares of common stock with an average exercise price of $4.83, respectively,
are considered anti-dilutive because the options' exercise price was greater
than the average fair market value of our common stock for the years then
ended.

 Reclassifications

  Certain previously reported amounts have been reclassified to conform to the
1999 consolidated financial statement presentation.

 Comprehensive Income

  Effective January 1, 1998, the Company adopted Statement of Financial
Accounting Standards No. 130, "Reporting Comprehensive Income." This statement
requires that all items recognized under accounting standards as components of
comprehensive earnings be reported in an annual financial statement that is
displayed with the same prominence as other annual financial statements.
Comprehensive income has been included in the Consolidated Statement of
Stockholders' Equity for all periods.

 Segment Reporting

  Effective January 1998, the Company adopted Statement of Financial
Accounting Standard No. 131, "Disclosures about Segments of an Enterprise and
Related Information." This statement establishes standards

                                      F-9
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

for the manner in which public companies report information about operating
segments in annual and interim financial statements. Information related to
geographic segments is included in Note 7.

 New Accounting Pronouncements

  In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position 98-1, "Accounting for the Cost of
Computer Software Developed or Obtained for Internal Use"("SOP 98-1"). SOP 98-
1 is effective for the financial statements for years beginning after December
15, 1998. SOP 98-1 provides guidance over accounting for computer software
developed or obtained for internal use including the requirement to capitalize
specified costs and amortization of such costs. The Company adopted the
provisions of SOP 98-1 in its fiscal year ending December 31, 1999. Adoption
did not have a material effect on the financial statements.

  In March 1998, the AICPA issued Statement of Position 98-4, "Deferral of
Effective Date of a Provision of SOP 97-2 ("SOP 98-4"). SOP 98-4 defers for
one year the application of certain provisions of Statement of Position 97-2
"Software Revenue Recognition ("SOP 97-2"). Different informal and non-
authoritative interpretations of certain provisions of SOP 97-2 have arisen
and, as a result, the AICPA issued Statement of Position 98-9, "Modification
of SOP 97-2, Software Revenue Recognition, with Respect to Certain
Transactions" ("SOP 98-9") in December 1998 which is effective for periods
beginning after March 15, 1999. SOP 98-9 extends the effective date of SOP 98-
4 and provides additional interpretive guidance. The adoption of SOP 97-2, SOP
98-4 and SOP 98-9 have not had a material effect on the results of operations,
financial position or cash flows.

  In June 1999, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 137, "Accounting for Derivative Instruments
and Hedging Activities--Deferral of the Effective Date of FASB Statement No.
133--an amendment of FASB Statement No. 133" ("SFAS 137"). SFAS 137 defers for
one year the application of Statement of Accounting Standards No. 133,
"Accounting for Derivative Instruments and Hedging Activities ("SFAS 133") to
all fiscal quarters of fiscal years beginning after June 15, 2000. SFAS 133
establishes accounting and reporting standards for derivative instruments and
hedging activities. The adoption of SFAS 133 and SFAS 137 have not had and are
not expected to have a material effect on the results of operations, financial
position or cash flows.

  In December 1999, the Securities and Exchange Commission ("SEC") issued
Staff Accounting Bulletin No. 101, "Revenue Recognition in Financial
Statements," ("SAB 101") which provides guidance on the recognition,
presentation, and disclosure of revenue in financial statements filed with the
SEC. SAB 101 outlines the basic criteria that must be met to recognize revenue
and provides guidance for disclosures related to revenue recognition policies.
Management believes the impact of SAB 101 will not have a material effect on
the results of operations, financial position or cash flows.

                                     F-10
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


NOTE 2--FINANCIAL STATEMENT COMPONENTS

<TABLE>
<CAPTION>
                                                              December 31,
                                                            ------------------
                                                              1999      1998
                                                            --------  --------
                                                             (in thousands)
<S>                                                         <C>       <C>
Other receivables:
  Government grants receivables............................ $    --   $    400
  Employee receivables.....................................    2,625     1,014
  Income taxes receivable..................................    2,178     2,618
  Other receivables........................................    1,522     1,980
                                                            --------  --------
                                                            $  6,325  $  6,012
                                                            ========  ========
Prepaid expenses and other current assets:
  Prepaid compensation..................................... $  6,579  $  5,717
  Deferred income taxes, net...............................    4,642     1,840
  Other....................................................    5,481     4,128
                                                            --------  --------
                                                            $ 16,702  $ 11,685
                                                            ========  ========
Property and equipment, net:
  Land and buildings....................................... $ 35,245  $ 18,311
  Computers and equipment..................................   23,558    18,039
  Office furniture and equipment...........................    5,829     4,481
  Leasehold improvements...................................    2,888     2,934
                                                            --------  --------
                                                              67,520    43,765
  Less: Accumulated depreciation and amortization..........  (20,610)  (15,342)
                                                            --------  --------
                                                            $ 46,910  $ 28,423
                                                            ========  ========
Accrued liabilities:
  Payroll and accrued commissions (including payroll
   taxes).................................................. $ 16,751  $  5,939
  Vacation and severance...................................    4,299     3,457
  Sales tax................................................    3,270     2,820
  Royalties................................................    1,596     2,177
  Merger related expenses..................................      937       --
  Other....................................................    6,580     3,843
                                                            --------  --------
                                                            $ 33,433  $ 18,236
                                                            ========  ========
</TABLE>

<TABLE>
<CAPTION>
                                                         Year ended December
                                                                 31,
                                                         ----------------------
                                                          1999    1998    1997
                                                         ------  ------  ------
                                                            (in thousands)
<S>                                                      <C>     <C>     <C>
Other income, net:
  Interest income....................................... $6,480  $4,741  $3,521
  Foreign exchange losses and other.....................   (454)   (101)   (438)
                                                         ------  ------  ------
                                                         $6,026  $4,640  $3,083
                                                         ======  ======  ======
</TABLE>

                                      F-11
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


NOTE 3--COMMON STOCK

  In August 1989, the Company adopted a stock option plan (the "1989 Plan").
Options granted under the 1989 Plan are for periods not to exceed ten years.
For holders of 10% or more of the total combined voting power of all classes
of the Company's stock, options may not be granted at less than 110% of the
fair value of the common stock at the date of grant and the option term may
not exceed 5 years. Incentive stock option grants under the 1989 Plan must be
at exercise prices no less than 100% of the fair market value and non-
statutory stock option grants under the 1989 Plan must be at exercise prices
no less than 85% of the fair market value of the stock on the date of grant.
Options are immediately exercisable but all shares purchased upon exercise of
options are subject to repurchase by the Company until vested. Options
generally vest over a period of four years. In August 1998, the stockholders
reserved an additional 1,200,000 shares of common stock for issuance upon
exercise of stock options to be granted under this plan.

  In August 1998, the stockholders adopted the 1999 Stock Option Plan (the
"1999 Plan") to replace the 1989 Plan, effective on the expiration of the term
of such plan in August 1999. The Company reserved 900,000 shares of common
stock for issuance upon exercise of stock options to be granted under this
plan. The provisions of the 1999 Plan regarding option term, grant price,
exercise price, and vesting period are identical to those of the 1989 Plan
except that all options granted under the 1999 Plan must be at exercise prices
no less than 100% of the fair market value. In December 1999, the stockholders
approved an automatic increase in the aggregate number of shares reserved for
issuance under the 1999 Plan by 4% of the common stock and equivalents
outstanding as of January 1 of each year starting in 2000 and ending in 2003.

  In May 1996, the Company adopted a stock option plan solely for grants to
employees of its subsidiaries located outside the United States (the
"Supplemental Plan"). The Company reserved 2,000,000 shares of common stock
for issuance upon exercise of stock options to be granted under this plan. The
provisions of the Supplemental Plan regarding option term, grant price,
exercise price, and vesting period is identical to those of the Plan.

  The following table presents the combined activity of the 1989 Plan, the
1999 Plan and the Supplemental Plan for the years ended December 31, 1997,
1998 and 1999 (shares in thousands):

<TABLE>
<CAPTION>
                                                       Options outstanding
                                                     ------------------------
                                            Options               Weighted
                                           available Number of    average
                                           for grant  shares   exercise price
                                           --------- --------- --------------
   <S>                                     <C>       <C>       <C>
   Balance outstanding at December 31,
    1996..................................      56    12,500       $ 2.82
   Additional shares authorized...........   2,992       --           --
   Options granted........................  (4,268)    4,268         2.97
   Options canceled.......................   1,252    (1,252)        3.00
   Options exercised......................     --     (2,124)        2.41
                                            ------    ------
   Balance outstanding at December 31,
    1997..................................      32    13,392         2.92
   Additional shares authorized...........   4,466       --           --
   Options granted........................  (5,320)    5,320         6.49
   Options canceled.......................     930      (930)        4.41
   Options exercised......................     --     (6,080)        2.72
                                            ------    ------
   Balance outstanding at December 31,
    1998..................................     108    11,702         4.49
   Additional shares authorized...........   7,857       --           --
   Options granted........................  (4,871)    4,871        16.02
   Options canceled.......................     945      (945)        6.38
   Options exercised......................     --     (3,612)        4.42
                                            ------    ------
   Balance outstanding at December 31,
   1999...................................   4,039    12,016       $ 9.07
                                            ======    ======
</TABLE>

                                     F-12
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


  The following table presents weighted average price and remaining
contractual life information about significant option groups outstanding under
the above plans at December 31, 1999 (shares in thousands):

<TABLE>
<CAPTION>
                                      Options outstanding                    Options exercisable
                         --------------------------------------------- --------------------------------
                                     Weighted average
                                        remaining                        Number
        Range of           Number    contractual life Weighted average exercisable Weighted average
    Exercise Prices      outstanding      (yr.)        exercise price  at 12/31/99  exercise price
    ---------------      ----------- ---------------- ---------------- ----------- ----------------
<S>                      <C>         <C>              <C>              <C>         <C>              <C>
$ 0.08- 3.19............    3,061          5.46            $ 2.78         2,044         $ 2.85
$ 3.38- 6.32............    4,015          8.07              5.73         1,359           5.65
$ 8.10-12.03............    3,691          9.01             11.55           192           8.89
$15.50-45.47............    1,249          9.81             28.09             4          19.57
                           ------                                         -----
                           12,016          7.87            $ 9.07         3,599         $ 4.24
                           ======                                         =====
</TABLE>

  In October 1998, the Company issued notes receivable of $5.1 million to its
officers and key employees in connection with the purchase of common stock.
The notes bear interest at 5%, are secured by the shares purchased, and
require quarterly interest payments. The full amount of the notes and the
final interest payment are due no later than December 31, 2000.

Directors' Stock Option Plan

  On August 3, 1994, the Board of Directors adopted the 1994 Directors' Stock
Option Plan (the "Directors' Plan"). The Company reserved 2,000,000 shares of
Common Stock for issuance upon exercise of stock options to be granted during
the ten year term of the Directors' Plan. Only outside directors may be
granted options under the Directors' Plan. The Plan provided for an initial
option grant of 25,000 shares to the Company's outside directors as of August
3, 1994 or upon initial election to the Board of Directors after August 3,
1994. In addition, the plan provided for automatic annual grants of 5,000
shares upon re-election of the individual to the Board of Directors. In August
1998, the stockholders agreed to amend the Directors' plan to increase the
number of shares granted to 50,000 shares as an initial grant to new non-
employee directors, 10,000 shares as the annual grant to continuing non-
employee directors of the Corporation, and to provide for a one-time grant of
25,000 shares to the non-employee directors of the Corporation who were
serving as directors of the Corporation as of August 14, 1998. The option term
shall be ten years, and options shall be exercisable while such person remains
a director. The exercise price shall be 100% of fair market value on the date
of grant. The initial option grants vest 20% annually for each director on the
date of each Annual Meeting of Stockholders of the Company after the date of
grant of such option. The annual option grants shall vest in full on the fifth
anniversary following each individual's re-election to the Board of Directors.

                                     F-13
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


  The following table presents the activity for the Directors' Plan for the
years ended December 31, 1997, 1998 and 1999 (shares in thousands):

<TABLE>
<CAPTION>
                                                        Options outstanding
                                             Options  -----------------------
                                            available Number of   Weighted
                                            for grant  shares   average price
                                            --------- --------- -------------
   <S>                                      <C>       <C>       <C>
   Balance outstanding at December 31,
    1996...................................   1,520      360       $ 3.26
   Options granted.........................     (60)      60         3.07
   Options canceled........................     --       --           --
   Options exercised.......................     --       (40)        2.29
                                              -----     ----
   Balance outstanding at December 31,
    1997...................................   1,460      380         3.33
   Options granted.........................    (360)     360         9.70
   Options canceled........................     --       --           --
   Options exercised.......................     --      (160)        3.81
                                              -----     ----
   Balance outstanding at December 31,
    1998...................................   1,100      580         7.14
   Options granted.........................     (60)      60        15.50
   Options canceled........................     --       --           --
   Options exercised.......................     --      (140)        7.96
                                              -----     ----
   Balance outstanding at December 31,
    1999...................................   1,040      500       $ 7.91
                                              =====     ====
</TABLE>

  The following table presents weighted average price and remaining
contractual life information about significant option groups outstanding under
the Directors' Plan at December 31, 1999 (shares in thousands):

<TABLE>
<CAPTION>
                                        Options outstanding                     Options exercisable
                         -------------------------------------------------- ----------------------------
                                       Weighted average                       Number
        Range of           Number          remaining       Weighted average exercisable Weighted average
    Exercise prices      outstanding contractual life(yr.)  exercise price  at 12/31/99  exercise price
    ---------------      ----------- --------------------- ---------------- ----------- ----------------
<S>                      <C>         <C>                   <C>              <C>         <C>
$ 2.28-$ 3.38...........     140             6.47               $ 3.06           20          $2.28
$ 5.28-$ 8.66...........     120             6.99                 6.75          --             --
$ 9.91-$ 9.91...........     180             8.62                 9.91          --             --
$15.50-$15.50...........      60             9.40                15.50          --             --
                             ---                                                ---
                             500             7.72               $ 7.91           20          $2.28
                             ===                                                ===
</TABLE>

Employee Stock Purchase Plans

  In October 1993, the Board of Directors and stockholders adopted the
Employee Stock Purchase Plan (the "1993 ESPP") and reserved 2,000,000 shares
for issuance. Under the plan, employees were granted the right to purchase
shares of common stock at a price per share that was the lesser of: (i) 85% of
the fair market value of the shares at the participant's entry date into the
two-year offering period, or (ii) the fair market value at the end of each
six-month segment within such offering period. The 1993 ESPP was terminated in
February 1998. In August 1998, the stockholders adopted the 1998 Employee
Stock Purchase Plan (the "1998 ESPP") to replace the 1993 ESPP and the
reservation of 1,300,000 shares for issuance thereunder. Under the 1998 ESPP,
employees are granted the right to purchase shares of common stock at a price
per share that is the lesser of (i) 85% of the fair market value of the shares
at the participant's entry date into the six month offering period, or (ii)
85% of the fair market value of the shares at the end of the six month
offering period. During 1999, 1998 and 1997, approximately 345,000, 84,000 and
560,000 shares, respectively, were purchased under our Employee Stock Purchase
Plans.

                                     F-14
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


Pro Forma Disclosure

  The Company has adopted the disclosure provisions only of SFAS 123 and will
continue to account for its stock option plans in accordance with the
provisions of APB 25. Accordingly, no compensation cost has been recognized
for the option plans or the ESPP.

  Pursuant to the requirements of SFAS 123, the following are pro forma net
income (loss) and net income (loss) per share for 1999, 1998 and 1997, as if
the compensation costs for the option plans and the ESPP had been determined
based on the fair value at the grant date for grants in 1999, 1998 and 1997,
consistent with the provisions of SFAS 123:
<TABLE>
<CAPTION>
                                                           1999    1998  1997
                                                          ------- ------ -----
   <S>                                                    <C>     <C>    <C>
   Pro forma net income (loss) (in thousands)............ $13,895 $7,882 $(379)
   Pro forma net income (loss) per share (basic).........    0.18   0.11 (0.01)
   Pro forma net income (loss) per share (diluted).......    0.16   0.10 (0.01)
</TABLE>

  The fair value of options and shares issued pursuant to the option plans and
the ESPP at the grant date were estimated using the Black-Scholes model with
the following weighted average assumptions:

<TABLE>
<CAPTION>
                                             Option plans           ESPP
                                             ----------------  ----------------
                                             1999  1998  1997  1999  1998  1997
                                             ----  ----  ----  ----  ----  ----
<S>                                          <C>   <C>   <C>   <C>   <C>   <C>
Expected life (years)....................... 4.00  4.00  5.00  0.50  0.50  0.50
Risk-free interest rate..................... 5.01% 5.22% 6.10% 5.06% 4.90% 5.36%
Volatility..................................   83%   83%   86%   83%   83%   86%
Dividend yield.............................. None  None  None  None  None  None
</TABLE>

  The weighted fair value per share of options granted under the 1989 Plan,
the 1999 Plan and Supplemental Plan during the years ended December 31, 1999,
1998 and 1997 were $10.12, $4.13 and $2.12, respectively. The weighted fair
value per share of options granted under the Directors' Plan during the years
ended December 31, 1999, 1998 and 1997 were $9.84, $6.13, and $2.18,
respectively.

NOTE 4--INCOME TAXES

  Income (loss) before income taxes consists of the following (in thousands):
<TABLE>
<CAPTION>
                                                          Year ended December
                                                                  31,
                                                         ----------------------
                                                          1999    1998    1997
                                                         ------- ------- ------
<S>                                                      <C>     <C>     <C>
Domestic................................................ $ 9,357 $ 6,239 $ (284)
Foreign.................................................  32,656  18,737  8,943
                                                         ------- ------- ------
                                                         $42,013 $24,976 $8,659
                                                         ======= ======= ======
</TABLE>

                                     F-15
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

  The provision for income taxes comprises the following (in thousands):
<TABLE>
<CAPTION>
                                                         Year ended December
                                                                 31,
                                                        ------------------------
                                                         1999     1998     1997
                                                        -------  -------  ------
   <S>                                                  <C>      <C>      <C>
   Current:............................................
     Federal........................................... $ 5,375  $ 5,322  $1,222
     State.............................................     931      350     355
     Foreign...........................................   5,365    1,619   1,080
                                                        -------  -------  ------
       Total Current...................................  11,671    7,291   2,657
                                                        -------  -------  ------
   Deferred:
     Federal...........................................  (2,681)  (1,756)    193
     State.............................................    (121)     (84)     77
     Foreign...........................................     --       --      --
                                                        -------  -------  ------
       Total Deferred..................................  (2,802)  (1,840)    270
                                                        -------  -------  ------
   Total tax expense................................... $ 8,869  $ 5,451  $2,927
                                                        =======  =======  ======
</TABLE>

  Deferred tax assets consist of the following (in thousands):
<TABLE>
<CAPTION>
                                                                December 31,
                                                               ----------------
                                                                1999     1998
                                                               -------  -------
   <S>                                                         <C>      <C>
   Accruals and reserves...................................... $ 3,644  $ 1,821
   Net operating loss carryforwards...........................   1,856    1,336
   Other......................................................     998       19
                                                               -------  -------
                                                                 6,498    3,176
   Valuation allowance........................................  (1,856)  (1,336)
                                                               -------  -------
     Deferred tax assets, net................................. $ 4,642   $1,840
                                                               =======  =======
</TABLE>

  The Company has provided a valuation allowance for the years ended December
31, 1999 and 1998 for net operating loss carryforwards in foreign
jurisdictions, for which realization of future benefit is uncertain.

  Management believes it is more likely than not that future operations will
generate sufficient taxable income to realize the December 31, 1999 deferred
tax assets, net.

  The provision for income taxes differs from the amount obtained by applying
the statutory federal income tax rate to income before taxes as follows (in
thousands):
<TABLE>
<CAPTION>
                                                         December 31,
                                                    -------------------------
                                                     1999     1998     1997
                                                    -------  -------  -------
   <S>                                              <C>      <C>      <C>
   Provision at federal statutory rate............. $14,705  $ 8,492  $ 2,944
   State tax, net of federal tax benefit...........     527      350      549
   Foreign rate differentials from U.S. statutory
    rate...........................................  (8,234)  (5,288)  (2,739)
   Non-utilized net operating losses and credits...   3,625    2,826    2,722
   Tax-exempt interest.............................    (640)    (409)    (756)
   Other...........................................  (1,114)    (520)     207
                                                    -------  -------  -------
                                                    $ 8,869  $ 5,451  $ 2,927
                                                    =======  =======  =======
</TABLE>

  Income taxes are not provided for the undistributed earnings of the
Company's foreign subsidiaries because it is management's intention to
reinvest such earnings in its foreign operations.

                                     F-16
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


  The Company's Israeli facilities have been granted the status of an
"Approved Enterprise" under the Israeli law for the Encouragement of Capital
Investments, 1959, as amended. An Approved Enterprise is eligible for
significant tax rate reductions for several years following the first year in
which there is Israeli taxable income (after consideration of tax losses
carried forward). The Company realized tax savings of approximately
$6.3 million, $5.2 million, and $4.2 million in 1999, 1998 and 1997,
respectively, as a result of this tax holiday. Because the Israeli subsidiary
currently has five overlapping Approved Enterprise plans, the tax holidays and
rate reductions which the Company will be able to realize in future years are
expected to extend until 2007.

  The Company had US federal net operating loss carryforwards of approximately
$23.1 million as of December 31, 1999, expiring through the year 2019. The net
operating losses are attributable to stock option compensation deductions.
Accordingly, any tax benefit realized upon utilization of these net operating
loss carryforwards will be accounted for as additions to Capital in Excess of
Par Value. For the year ended December 31, 1999 the Company had California net
operating loss carryforwards of approximately $4.4 million available to reduce
future income subject to income taxes. If not utilized, the California net
operating losses will expire through the year 2004.

  The 1999 tax provision was calculated without the benefit of Conduct's pre-
acquisition losses because the realization of any future tax benefit is
uncertain.

NOTE 5--COMMITMENTS AND CONTINGENCIES

Royalty Commitments

  Research and development expense is reported net of research grants received
from the government of Israel, and includes royalty expense for obligations to
the government of Israel for sales of products developed under government-
funded research. No grants were obtained from the Office of the Chief
Scientist in the Israeli Ministry of Industry and Trade ("the Chief
Scientist") during 1999. Research grants received amounted to $1.6 million in
1998 and $2.1 million in 1997. The Company was not obligated to repay these
grants; however, the Company agreed to pay royalties at rates ranging from 2%
to 5% of product sales resulting from the research, up to the amount of the
grants obtained and for certain grants up to 150% of the grants obtained.
Royalty expense under these agreements amounted to approximately $2.7 million
for each of the years ended December 31, 1999 and 1998, and $1.6 million for
the year ended December 31, 1997. As of December 31, 1999, the Company had no
outstanding royalty obligations. The Company has not applied for, nor does it
anticipate applying for, any future Chief Scientist grants.

Lease commitments

  The Company leases facilities for sales offices in the U.S. and foreign
locations under non-cancelable operating leases that expire from 2000 through
2004. Certain of these leases contain renewal options. The Company leases
certain equipment and vehicles under various leases with lease terms ranging
from month-to-month up to one year. Future minimum payments under the
facilities and equipment leases with non-cancelable terms in excess of one
year are as follows as of December 31, 1999 (in thousands):

<TABLE>
             <S>                                <C>
             2000.............................. $3,101
             2001..............................  2,397
             2002..............................  1,555
             2003..............................    569
             2004..............................    229
                                                ------
             Total............................. $7,851
                                                ======
</TABLE>

                                     F-17
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


  Total rent expense under operating leases amounted to $2.8 million, $2.0
million, and $1.6 million for the years ended December 31, 1999, 1998 and
1997, respectively.

NOTE 6--RELATED PARTIES

  At December 31, 1999, the Company held seven notes receivable with balances
totaling $5.1 million from its officers and key employees. These notes arose
from transactions occurring on October 5, 1998 whereby the Company loaned its
key employees money to purchase an aggregate of 886,428 shares of our common
stock at the then fair market value. These notes, which bear interest at the
rate of 5% per annum, mature on December 31, 2000. Interest on the notes is
due quarterly, with the principal amount and final interest payment being
payable in full no later than the maturity date. If the officer or key
employee's employment is terminated prior to January 1, 2001, the unpaid
portion of the note would become payable in full. These notes are
collateralized by the shares purchased. The receivable is shown on the balance
sheets as a reduction in equity.

NOTE 7--GEOGRAPHIC REPORTING

<TABLE>
<CAPTION>
                                                      Year ended December 31,
                                                     --------------------------
                                                       1999     1998     1997
                                                     -------- -------- --------
                                                           (in thousands)
   <S>                                               <C>      <C>      <C>
   Net revenue to third parties:
     North America.................................. $123,900 $ 78,797 $ 49,354
     Europe.........................................   49,700   33,140   21,223
     Rest of the World..............................   14,100    9,063    6,123
                                                     -------- -------- --------
       Consolidated................................. $187,700 $121,000 $ 76,700
                                                     ======== ======== ========
   Identifiable assets:
     North America.................................. $200,854 $161,751 $111,561
     Europe.........................................   25,389   14,388   11,656
     Rest of the World..............................   70,975   28,547   20,446
                                                     -------- -------- --------
       Consolidated................................. $297,218 $204,686 $143,663
                                                     ======== ======== ========
</TABLE>

  The subsidiary located in the United Kingdom accounted for 12% and 11% of
the consolidated net revenue to unaffiliated customers for the years ended
December 31, 1999 and 1998, respectively. Operations located in Israel
accounted 23% and 19% of the consolidated identifiable assets at December 31,
1999 and 1998, respectively. In 1997, no subsidiary represented 10 percent or
more of the related consolidated amounts.

NOTE 8--ACQUISITIONS

  On September 30, 1997, the Company acquired technologies from Dixon Software
Technology, an unrelated company, for $4.5 million and related acquisition
costs of $1.0 million. As a result of this purchase, in the third quarter of
1997, the Company recorded a one-time charge for write off of in-process
research and development and related expenses of $5.5 million.

  On November 30, 1999, the Company acquired Conduct Ltd. Under terms of the
agreement, approximately 408,000 shares of the Company's common stock were
issued in exchange for all issued and outstanding convertible preferred and
common shares of Conduct, and assumption of all outstanding Conduct stock
options, warrants and other securities. The transaction was accounted for as a
pooling of interests in the year ended December 31, 1999; therefore, all prior
periods presented have been restated to include Conduct in operations since
its inception.

                                     F-18
<PAGE>

                        MERCURY INTERACTIVE CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


  Since its inception, Conduct Ltd. has not recorded any revenues. The net
income for the separate companies and the combined amounts presented in the
consolidated financial statements follow (in thousands).

<TABLE>
<CAPTION>
                                                         Year ended December
                                                                 31,
                                                        -----------------------
                                                         1999    1998     1997
                                                        ------- -------  ------
                                                            (in thousands)
<S>                                                     <C>     <C>      <C>
Net Income (loss):
  Mercury Interactive Corporation...................... $33,144 $21,805  $6,707
  Conduct Ltd..........................................     --   (2,280)   (975)
                                                        ------- -------  ------
                                                        $33,144 $19,525  $5,732
                                                        ======= =======  ======
</TABLE>

NOTE 9--SUBSEQUENT EVENTS

  In January 2000, the Company declared a two-for-one stock split in the form
of a stock dividend. One additional share of common stock has been issued for
each share of common stock held by shareholders of record as of January 28,
2000. New shares were distributed on February 11, 2000. All per share data
contained herein have been restated to reflect the increased number of shares
outstanding.

                                     F-19
<PAGE>

                       UNAUDITED QUARTERLY FINANCIAL DATA

<TABLE>
<CAPTION>
                                                     Quarter ended
                          -------------------------------------------------------------------
                           Dec.    Sept.   June              Dec.    Sept.   June
                            31,     30,     30,   March 31,   31,     30,     30,   March 31,
                           1999    1999    1999     1999     1998    1998    1998     1998
                          ------- ------- ------- --------- ------- ------- ------- ---------
                                       (in thousands, except per share amounts)
<S>                       <C>     <C>     <C>     <C>       <C>     <C>     <C>     <C>
Revenue:
  License...............  $43,500 $33,500 $29,300  $24,600  $28,200 $21,550 $19,100  $15,600
  Service...............   16,600  14,000  13,200   13,000   12,800   9,050   8,100    6,600
                          ------- ------- -------  -------  ------- ------- -------  -------
    Total revenue.......   60,100  47,500  42,500   37,600   41,000  30,600  27,200   22,200
                          ------- ------- -------  -------  ------- ------- -------  -------
Cost of revenue:
  License...............    2,190   2,040   1,870    1,636    1,867   1,545   1,550    1,329
  Service...............    5,181   4,948   4,441    4,072    3,864   2,959   2,600    2,334
                          ------- ------- -------  -------  ------- ------- -------  -------
    Total cost of
     revenue............    7,371   6,988   6,311    5,708    5,731   4,504   4,150    3,663
                          ------- ------- -------  -------  ------- ------- -------  -------
Gross profit............   52,729  40,512  36,189   31,892   35,269  26,096  23,050   18,537
                          ------- ------- -------  -------  ------- ------- -------  -------
Operating expenses:
Research and
 development, net.......    5,828   6,554   5,866    5,236    5,274   4,463   3,907    3,263
Marketing and selling...   27,123  21,975  20,380   19,131   18,085  14,338  13,753   11,067
General and
 administrative.........    3,033   3,082   2,797    2,330    2,440   2,116   1,963    1,947
Merger related
 expenses...............    2,000     --      --       --       --      --      --       --
                          ------- ------- -------  -------  ------- ------- -------  -------
    Total operating
     expenses...........   37,984  31,611  29,043   26,697   25,799  20,917  19,623   16,277
                          ------- ------- -------  -------  ------- ------- -------  -------
Income from operations..   14,745   8,901   7,146    5,195    9,470   5,179   3,427    2,260
Other income, net.......    1,925   1,542   1,406    1,153    1,610   1,227     947      856
                          ------- ------- -------  -------  ------- ------- -------  -------
Income before provision
 for income taxes.......   16,670  10,443   8,552    6,348   11,080   6,406   4,374    3,116
Provision for income
 taxes..................    3,334   2,297   1,840    1,398    2,332   1,405   1,008      706
                          ------- ------- -------  -------  ------- ------- -------  -------
Net income..............  $13,336 $ 8,146 $ 6,712  $ 4,950  $ 8,748 $ 5,001 $ 3,366  $ 2,410
                          ======= ======= =======  =======  ======= ======= =======  =======
Net income per share
 (basic)................  $  0.17 $  0.11 $  0.09  $  0.07  $  0.12 $  0.07 $  0.05  $  0.04
                          ======= ======= =======  =======  ======= ======= =======  =======
Net income per share
 (diluted)..............  $  0.15 $  0.09 $  0.08  $  0.06  $  0.11 $  0.06 $  0.04  $  0.03
                          ======= ======= =======  =======  ======= ======= =======  =======
Weighted average common
 shares (basic).........   77,824  76,796  75,394   74,434   73,352  70,692  69,880   68,708
                          ======= ======= =======  =======  ======= ======= =======  =======
Weighted average common
 shares (diluted).......   87,974  85,920  83,804   83,310   80,584  79,008  78,380   77,604
                          ======= ======= =======  =======  ======= ======= =======  =======
</TABLE>

                                      F-20
<PAGE>

                                                                     SCHEDULE II

                        MERCURY INTERACTIVE CORPORATION

                       VALUATION AND QUALIFYING ACCOUNTS

                  For the Three Years Ended December 31, 1999
                                 (In thousands)

<TABLE>
<CAPTION>
                                             Additions
                                  Balance at Charged to Deductions  Balance at
                                  Beginning  Costs and   Bad Debts    End of
           Description            of Period   Expenses  Charged Off   Period
           -----------            ---------- ---------- ----------- ----------
<S>                               <C>        <C>        <C>         <C>
Reserve for sales returns and
 doubtful accounts receivable:
  December 31, 1999..............   $3,623     $4,485     $2,575      $5,533
  December 31, 1998..............   $1,878     $2,943     $1,198      $3,623
  December 31, 1997..............   $1,136     $1,927     $1,185      $1,878
</TABLE>

<PAGE>

                                                                   EXHIBIT 10.13

================================================================================

                           SHARE EXCHANGE AGREEMENT

                                    among:


                        MERCURY INTERACTIVE CORPORATION
                            a Delaware corporation;


                                  CONDUCT LTD
                            an Israeli corporation;


                      CONDUCT SOFTWARE TECHNOLOGIES, INC.
                           a California corporation;


                                      and


                           THE CONDUCT SHAREHOLDERS

                                      and


                            THE CONDUCT NOTEHOLDERS




                         -----------------------------
                         Dated as of November 24, 1999
                         -----------------------------


================================================================================
<PAGE>

                            SHARE EXCHANGE AGREEMENT


     This SHARE EXCHANGE AGREEMENT ("Agreement") is made and entered into as of
November 24, 1999, by and among: Mercury Interactive Corporation, a Delaware
corporation ("Mercury"); Conduct Ltd., an Israeli corporation ("Conduct");
Conduct Software Technologies, Inc., a California corporation and wholly-owned
subsidiary of Conduct (the "Subsidiary"); the shareholders of Conduct Ltd., as
identified on Exhibit A (the "Conduct Shareholders"); and the Conduct
              ---------
Noteholders.  Certain capitalized terms used in this Agreement are defined in

Exhibit B.
- ---------

                                    Recitals

     A.  Mercury, Conduct and the Conduct Shareholders intend to effect an
exchange of all of the issued and outstanding capital shares of Conduct for
newly issued shares of Mercury common stock.

     B.  This Agreement contemplates a transaction in which Mercury will acquire
all of the outstanding capital shares of Conduct for stock of Mercury in a
taxable purchase of stock.

     C.  This Agreement has been adopted and approved by the respective boards
of directors of Mercury, Conduct and Subsidiary.

                                   Agreement

     The parties to this Agreement agree as follows:


SECTION 1.  DESCRIPTION OF TRANSACTION

     1.1  Exchange of Shares.  Upon the terms and subject to the conditions set
forth in this Agreement, at the Closing, Mercury agrees to issue 408,000 shares
of common stock of Mercury (the "Mercury Stock") in exchange for all outstanding
Conduct ordinary shares and preferred shares (the "Conduct Capital Shares"), all
outstanding Convertible Promissory Notes and all outstanding options and
warrants to purchase Conduct Capital Shares and the Conduct Shareholders agree
to assign and transfer to Mercury in exchange for the Mercury Stock all
outstanding Conduct Capital Shares. Thereupon, Conduct will be a wholly-owned
subsidiary of Mercury and the corporate existence of Conduct, with all its
purposes, powers and objects, shall continue unaffected and unimpaired.

     1.2  Escrow of Mercury Stock.  At the Closing, Mercury shall segregate from
the Mercury Stock issuable hereunder such number of shares of Mercury Stock as
is equal to 10% of the shares of Mercury Stock to be issued to Conduct
Shareholders at the Closing represented by one stock certificate issued in the
name of the Escrow Agent and cause such stock to be deposited with and U.S. Bank
Trust National Association to act as escrow agent (the "Escrow Agent"), under
the escrow agreement in the form attached hereto as Exhibit C.
                                                    ---------
<PAGE>

     1.3  Closing.  The consummation of the transactions contemplated by this
Agreement (the "Closing") shall take place at the offices of General Counsel
Associates LLP, 1891 Landings Drive, Mountain View, CA  94043 at 5:00 p.m. on
November 30, 1999 (provided that all other conditions set forth in Sections 7
and 8 have been satisfied or waived) or on such other date as is mutually agreed
upon by Conduct and Mercury.  (The date on which the Closing actually takes
place is referred to in this Agreement as the "Closing Date.").

      1.4  Deliveries at Execution and Closing.

           (a)  Contemporaneously with the execution and delivery of this
                Agreement:

                (i) Mercury, the Escrow Agent, the Conduct Shareholders and the
Shareholders' Agent are entering into an Escrow Agreement in the form of
Exhibit C (the "Escrow Agreement");
- ---------

                (ii) Mercury and each of David Barzilai and Sharon Azulai are
amending the Employment Agreements between Subsidiary and each of them as set
forth in the Amendment to their respective Employment Agreements in the form of
Exhibit D;
- ---------

                (iii) Conduct shall deliver to Mercury a certificate pursuant to
which Conduct represents and warrants to Mercury that attached to such
certificate are resolutions duly adopted by the unanimous consent of the Board
of Directors approving the Agreement and the transactions contemplated by this
Agreement; and

           (b) Mercury shall deliver to Conduct a certificate pursuant to which
Mercury represents and warrants to Conduct that attached to such certificate are
resolutions duly adopted by unanimous consent of the Board of Directors
approving the Agreement and the transactions contemplated by this Agreement.

           (c) At the Closing: (i) the Conduct Shareholders shall deliver to
Mercury (x) the share certificates representing one hundred percent of the
outstanding Conduct Capital Shares, duly endorsed share transfer deeds signed by
each of Conduct's Shareholders (and if the Conduct Shareholder is not an
individual, such deed shall be approved by the entity's lawyer as binding upon
the entity) and witnessed regarding the transfer of shares of such Conduct
Shareholder to Mercury; and (ii) the officers and directors of Conduct and
Subsidiary shall resign from their positions as officers and directors of
Conduct; and (iii) Mercury shall deliver the Mercury Stock in accordance with
Sections 1.5(a) and 1.5(g), shall make the cash payments for fractional shares
specified in Section 1.5(f).

           (d) All actions and transactions occurring at the Closing shall be
deemed to take place simultaneously and no transaction shall be deemed to have
been completed or any document delivered until all such transactions have been
completed and all required documents delivered.

     1.5  Articles of Association; Directors and Officers.

                                       2
<PAGE>

           (a) The Articles of Association of Conduct shall be amended and
restated as of the Closing in a form satisfactory to Mercury.

           (b) The directors and officers of Conduct and Subsidiary immediately
after the Closing shall be those Persons designated by Mercury in its sole
discretion.

     1.6  The Exchange.

           (a) At the Closing, by virtue of the terms of this Agreement and
without any further action on the part of Mercury, Conduct or any Conduct
Shareholder:
                (i)  First:

                      (1) each share of Series A Preferred of Conduct (the
     "Series A Preferred") outstanding immediately prior to the Closing shall be
     exchanged into: (A) a fraction of a share of Mercury Stock (as defined
     below) (y) having a numerator equal to $0.286 (representing the liquidation
     preference of each share of Series A Preferred under Conduct's Articles of
     Association plus any declared but unpaid dividends), and (z) having a
     denominator equal to the Mercury Average Stock Price ("the Series A
     Liquidation Amount"); plus (B) the Applicable Fraction (defined below) of a
     share of the common stock of Mercury;

                      (2) each share of Series B Preferred of Conduct (the
     "Series B Preferred") outstanding immediately prior to the Closing shall be
     exchanged into: (A) a fraction of a share of Mercury Stock (as defined
     below), in each case (y) having a numerator equal to $0.865 (representing
     the liquidation preference of each share of Series B Preferred under
     Conduct's Articles of Association plus any declared but unpaid dividends),
     and (z) having a denominator equal to the Mercury Average Stock Price ("the
     Series B Liquidation Amount"); and (B) the Applicable Fraction of a share
     of Mercury Stock;

                (ii)  Thereafter,

                      (1) each share of the ordinary shares of Conduct (the
     "Conduct Ordinary Shares") outstanding immediately prior to the C losing
     shall be exchanged into the Applicable Fraction (as defined below) of a
     share of the common stock (par value $0.002 per share) of Mercury ("Mercury
     Stock"). The "Applicable Fraction" shall be the fraction (A) having a
     numerator equal to 408,000 less the Aggregate Preferred Stock Liquidation
     Preference (if any) and (B) having a denominator equal to the Fully Diluted
     Number of Conduct Capital Shares;

                      (2) each share of the Conduct Preferred Shares outstanding
     immediately prior to the Closing (in addition to the amounts set forth
     above in Subsection 1.6(a)(i)) shall be exchanged into the Applicable
     Fraction of a share of the Mercury Stock.

                                       3
<PAGE>

                (iii) all calculations under this Section 1.6(a) shall be
     rounded to the nearest one thousandth (1/1,000th); and

                (iv) subject only to Section 1.6(c), in no case shall the number
     of shares of Mercury Stock issued under this Section 1.6(a) to the Conduct
     Shareholders, when added to the shares of Mercury Stock issuable to the
     holders of options and warrants to purchase Conduct Capital Shares under
     Section 1.7, exceed 408,000 shares.

           (b) Notwithstanding anything to the contrary contained in this
Agreement, a portion of the shares of Mercury Stock issued in the transactions
contemplated by this Agreement shall be delivered into escrow and held as
specified in Section 1.8 hereof.

           (c) In the event Mercury at any time or from time to time between the
date of this Agreement and the Closing declares or pays any dividend on Mercury
Stock payable in Mercury Stock or in any right to acquire Mercury Stock, or
effects a subdivision of the outstanding shares of Mercury Stock into a greater
number of shares of Mercury Stock (by stock dividends, combinations, splits,
recapitalizations and the like), or in the event the outstanding shares of
Mercury Stock shall be combined or consolidated, by reclassification or
otherwise, into a lesser number of shares of Mercury Stock, then the Applicable
Fraction shall be appropriately adjusted.

           (d) The shares of Mercury Stock to be issued in the transaction shall
be characterized as "restricted securities" for purposes of Rule 144 under the
Securities Act, and each certificate representing any of such shares shall bear
a legend identical or similar in effect to the following legend (together with
any other legend or legends required by applicable state securities laws or
otherwise):

          "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
          UNDER THE SECURITIES ACT OF 1933 (THE "ACT") AND MAY NOT BE OFFERED,
          SOLD OR OTHERWISE TRANSFERRED, ASSIGNED, PLEDGED OR HYPOTHECATED
          UNLESS REGISTERED UNDER THE ACT OR UNLESS AN EXEMPTION FROM THE
          REGISTRATION REQUIREMENTS OF THE ACT IS AVAILABLE."

           (e) If any Conduct Capital Shares outstanding immediately prior to
the Closing are unvested or are subject to a repurchase option, risk of
forfeiture or other condition under any applicable restricted stock purchase
agreement or other agreement with Conduct, then the shares of Mercury Stock
issued in exchange for such Conduct Capital Shares will also be unvested and
subject to the same repurchase option, risk of forfeiture or other condition,
and the certificates representing such shares of Mercury Stock may accordingly
be marked with appropriate legends.

           (f) No fractional shares of Mercury Stock shall be issued in
connection with the transactions contemplated by this Agreement, and no
certificates for any such fractional shares shall be issued. In lieu of such
fractional shares, any holder of capital shares of Conduct

                                       4
<PAGE>

who would otherwise be entitled to receive a fraction of a share of Mercury
Stock (after aggregating all fractional shares of Mercury Stock issuable to such
holder) shall, upon surrender of such holder's stock certificate(s) representing
capital shares of Conduct, be paid in cash the dollar amount (rounded to the
nearest whole cent), without interest, determined by multiplying such fraction
by the Mercury Average Stock Price. In no case shall any holder of capital
shares of Conduct be entitled to receive cash in an amount equal to or greater
than the value of one share of Mercury Stock.

           (g) Mercury shall be entitled to deduct and withhold from any
consideration payable or otherwise deliverable to any holder or former holder of
Conduct Capital Shares pursuant to this Agreement such amounts as Mercury may be
required to deduct or withhold therefrom under the Internal Revenue Code of
1986, as amended (the "Code") or under any provision of state, local or foreign
tax law. To the extent such amounts are so deducted or withheld, such amounts
shall be treated for all purposes under this Agreement as having been paid to
the Person to whom such amounts would otherwise have been paid.

           (h) The shares of Mercury Stock issued upon surrender for exchange of
shares of Conduct Capital Shares in accordance with the terms of this Agreement
shall be deemed to have been fully paid and issued in full satisfaction of all
rights pertaining to such shares.

     1.7  Stock Options, Warrants and Convertible Promissory Notes.

           (a) At the Closing, each option to purchase capital shares of Conduct
that is then outstanding, whether vested or unvested (a "Conduct Option"), shall
be assumed by Mercury in accordance with the terms (as in effect as of the date
of this Agreement) of the stock option agreement by which such Conduct Option is
evidenced. At the Closing, all rights with respect to Conduct Capital Shares
under outstanding Conduct Options shall be converted into rights with respect to
Mercury Stock. Accordingly, from and after the Closing, (i) each Conduct Option
assumed by Mercury may be exercised solely for shares of Mercury Stock, (ii) the
number of shares of Mercury Stock subject to each such assumed Conduct Option
shall be equal to the number of Conduct Capital Shares that were subject to such
Conduct Option immediately prior to the Closing multiplied by the Applicable
Fraction, rounded down to the nearest whole number of shares of Mercury Stock,
(iii) the per share exercise price for the Mercury Stock issuable upon exercise
of each such assumed Conduct Option shall be determined by dividing the exercise
price per share of Conduct Capital Shares subject to such Conduct Option, as in
effect immediately prior to the Closing, by the Applicable Fraction, and
rounding the resulting exercise price up to the nearest whole cent and (iv) all
restrictions on the exercise of each such assumed Conduct Option shall continue
in full force and effect, and the term, exercisability, vesting schedule and
other provisions of such Conduct Option shall otherwise remain unchanged;
provided, however, that each such assumed Conduct Option shall, in accordance
with its terms, be subject to further adjustment as appropriate to reflect any
stock split, reverse stock split, stock dividend, recapitalization or other
similar transaction effected by Mercury after the Closing. It is the intention
of the parties that Conduct Options so assumed by Mercury qualify, to the
maximum extent permissible following the Closing, as incentive stock options as
defined in Section 422 of the Code to the extent such options qualified as
incentive stock options prior to the Closing, or as options granted pursuant to
the provisions of section 102 of the Israeli Income

                                       5
<PAGE>

Tax Ordinance (new version) 1961 (the "Ordinance") and any regulations, rules,
orders or procedures promulgated thereunder, including the Income Tax Rules (Tax
benefits in Stock Issuance to Employees) 5349-1989 (the "Rules"), as
appropriate. Conduct and Mercury shall take all action that may be necessary to
effectuate the provisions of this Section 1.7. As soon as is reasonably
practicable following the Closing, Mercury will send to each holder of an
assumed Conduct Option a written notice setting forth (i) the number of shares
of Mercury Stock subject to such assumed Conduct Option and (ii) the exercise
price per share of Mercury Stock issuable upon exercise of such assumed Conduct
Option. Mercury shall file with the SEC, within 10 days after the Closing, a
registration statement on Form S-8 registering the exercise of any Conduct
Options assumed by Mercury pursuant to this Section 1.7.

           (b) Immediately prior to the Closing, each warrant to purchase
Conduct Capital Shares that is then outstanding (a "Conduct Warrant"), shall
terminate according to its terms.

           (c) Immediately prior to the Closing, each Conduct Noteholder hereby
agrees to convert all Conduct Convertible Promissory Notes held by such holder
into such number of Conduct Series B Preferred Shares as is equal to the amount
of outstanding principal divided by $0.865.

     1.8  Exchange of Certificates; Escrow Shares.

           (a) At the Closing, each Conduct Shareholder shall surrender to
Mercury all certificates representing shares of Conduct Ordinary Shares or
Conduct Preferred Shares, as appropriate, for cancellation, together with an
executed share transfer deed duly endorsed and witnessed in blank by such holder
and such other documents as may be reasonably required by Mercury. As soon as
practicable after the Closing, Mercury shall (i) deliver to each Conduct
Shareholder who has surrendered its, his or her certificates formerly
representing Conduct Capital Shares in compliance with the preceding sentence a
certificate representing 90 percent of the number of whole shares of Mercury
Stock that such Conduct Shareholder has the right to receive pursuant to the
provisions of Section 1.6 and (ii) deliver to the escrow agent under the Escrow
Agreement in the form of Exhibit C hereto (the "Escrow Agreement"), on behalf
                         ---------
the Conduct Shareholders, a certificate representing 10 percent of the number of
whole shares of Mercury Stock that each Conduct Shareholder has the right to
receive pursuant to the provisions of Section 1.6 represented by one stock
certificate issued in the name of the Escrow Agent (the "Escrow Shares"). In
determining the number of whole shares that represent 90 percent of the number
of shares of Mercury Stock to which each Conduct Shareholder is entitled
pursuant to Section 1.6, Mercury shall round up to the nearest whole number of
shares, and in determining the number of Escrow Shares to which such Conduct
Shareholder is entitled pursuant to Section 1.6, Mercury shall round down to the
nearest whole number. If any shares of Mercury Stock are to be issued in the
name of a person other than the person in whose name Conduct Stock Certificate
surrendered in exchange therefor is registered, it shall be a condition to the
issuance of such shares that (i) the certificate(s) so surrendered shall be
transferable, and shall be properly assigned, endorsed or accompanied by
appropriate stock powers, (ii) such transfer shall otherwise be proper and (iii)
the person requesting such transfer shall pay Mercury, or its exchange agent,
any transfer or other taxes payable by reason of the foregoing or establish to
the

                                       6
<PAGE>

satisfaction of Mercury that such taxes have been paid or are not required
to be paid. If any Conduct share certificate shall have been lost, stolen or
destroyed, Mercury may, in its discretion and as a condition precedent to the
issuance of any certificate representing Mercury Stock, require the owner of
such lost, stolen or destroyed Company share certificate to provide an
appropriate affidavit with respect to such Company share certificate.

           (b) No dividends or other distributions declared or made with respect
to Mercury Stock with a record date after the Closing shall be paid to the
holder of any unsurrendered Conduct share certificate with respect to the shares
of Mercury Stock represented thereby, and no cash payment in lieu of any
fractional share shall be paid to any such holder, until such holder surrenders
such Company Stock Certificate in accordance with this Section 1.8 (at which
time such holder shall be entitled receive all such dividends and distributions
and such cash payment payable subsequent to the Closing but prior to the
surrender of such Company Stock Certificate.).

     1.9 Tax Consequences. For United States federal income tax purposes and the
Israeli Income Tax Ordinance, the transactions contemplated by this Agreement
are intended to constitute a taxable sale of Conduct shares to Mercury.

     1.10 Accounting Treatment. For accounting purposes, the transaction is
intended to be treated as a "pooling of interests."

     1.11 Further Action. If, at any time after the Closing, any further action
is determined by Mercury to be necessary or desirable to carry out the purposes
of this Agreement or to vest Conduct or Mercury with full right, title and
possession of and to all rights and property of Conduct, the officers and
directors of Conduct and Mercury shall be fully authorized (in the name of
Conduct and otherwise) to take such action.

SECTION 2.  REPRESENTATIONS AND WARRANTIES OF CONDUCT AND SUBSIDIARY

     Except as set forth in the Disclosure Schedule attached hereto as Exhibit
                                                                       -------
E, Conduct and, Subsidiary jointly and severally represent and warrant, to
- -
Mercury that the representations and warrants set forth below are true and
correct as of the date of the Agreement and will be correct and complete as of
the Closing Date (as though made then and as though the Closing Date were
substituted for the date of this Agreement), as follows:

     2.1  Due Organization; Subsidiaries; Etc.

           (a) Conduct is a corporation duly organized, validly existing and in
good standing under the laws of Israel, and Subsidiary is a corporation duly
organized, validly existing and in good standing under the laws of the state of
California. Conduct and the Subsidiary each have all necessary power and
authority: (i) to conduct its business in the manner in which its business is
currently being conducted; (ii) to own and use its assets in the manner in which
its assets are currently owned; and (iii) to perform its obligations in all
material respects under all Material Contracts by which it is bound.

                                       7
<PAGE>

           (b) Except as set forth on Part 2.1(b) neither Conduct nor Subsidiary
have conducted any business under or otherwise used, for any purpose or in any
jurisdiction, any fictitious name, assumed name, trade name or other name.

           (c) Neither Conduct nor Subsidiary is, and has not been, required to
be qualified, authorized, registered or licensed to do business as a foreign
corporation in any jurisdiction, except where the failure to be so qualified,
authorized, registered or licensed would not have a Material Adverse Effect on
Conduct.
           (d) Part 2.1(d) of the Disclosure Schedule accurately sets forth (i)
the names of the members of Conduct's and Subsidiary's board of directors, and
(ii) the names and titles of Conduct's and Subsidiary's officers. Neither
Conduct's nor Subsidiary's board of directors has ever established any
committees, other than the Conduct Compensation Committee and the Audit
Committee.

           (e) Conduct has no subsidiaries, other than Subsidiary, and has never
owned, beneficially or otherwise, any shares or other securities of, or any
direct or indirect interest of any nature in, any other Entity.

     2.2 Articles of Association and Bylaws; Records. Conduct has delivered to
Mercury accurate and complete copies of: (a) Conduct's articles of association
and Subsidiary's articles of incorporation and bylaws, including all amendments
thereto; (b) the share records of Conduct and Subsidiary and (c) the minutes and
other records of the meetings and other proceedings (including any actions taken
by written consent or otherwise without a meeting) of the shareholders of
Conduct and Subsidiary and the board of directors of Conduct and the Subsidiary.
There have been no meetings or other proceedings or actions of the shareholders
of Conduct or Subsidiary or the board of directors of Conduct or Subsidiary in
which any material action took place that are not fully reflected in such
minutes or other records. There has not been any material violation of any of
the provisions of Conduct's articles of association or Subsidiary's articles of
incorporation or bylaws or of any resolution adopted by Conduct's or
Subsidiary's shareholders or Conduct's or Subsidiary's board of directors. The
books of account, stock records, minute books and other records of Conduct and
Subsidiary are accurate, up-to-date and complete in all material respects, and
have been maintained in accordance with all applicable material Legal
Requirements.

     2.3   Capitalization, Etc.

           (a) The authorized capital shares of Conduct consist of (i)
14,371,965 ordinary shares, of which 3,911,875 shares are issued and outstanding
as of the date of this Agreement and (ii) 7,349,285 Preferred Shares, 2,096,250
of which are designated as Series A Preferred, 2,096,250 of which are issued and
outstanding as of the date of this Agreement, and 5,253,035 of which are
designated Series B Preferred Stock, 4,625,000 of which are issued and
outstanding as of the date of this Agreement. The authorized capital stock of
Subsidiary consists of 1,000 shares of common stock, of which 100 shares are
issued and outstanding as of the date of this Agreement and all of which are
owned by Conduct. Exhibit A to this Agreement sets forth the names of Conduct's
                  ---------

Shareholders as of the date of this Agreement and the number of

                                       8
<PAGE>

Conduct Ordinary Shares and Conduct Preferred Shares owned of record by each of
such Conduct Shareholders as of the date of this Agreement. Conduct has reserved
an additional 1,875,000 Conduct Ordinary Shares for issuance under its 1998
Share Option Plan (the "Option Plan") to employees, advisory board members,
officers or directors of, or consultants to, Conduct, of which options to
acquire 739,063 Ordinary Shares have been granted and are outstanding as of the
date of this Agreement (and 8,125 have been exercised at the date hereof). Part
2.3(a)(1) of the Disclosure Schedule sets forth a true and complete list as of
the date hereof of all holders of outstanding Conduct Options, including the
number of Conduct Ordinary Shares subject to each such Conduct Option, the
exercise and vesting schedule, and the exercise price per share. Conduct has
reserved an additional 628,035 shares of Conduct Series B Preferred Stock for
issuance pursuant to outstanding warrants as of the date of this Agreement to
purchase shares of Conduct Series B Preferred Stock and pursuant to convertible
unsecured promissory notes. Part 2.3(a)(2) of the Disclosure Schedule sets forth
the names of Conduct's warrant holders as of the date of this Agreement and the
number of shares issuable upon exercise of outstanding warrants as of the date
of this Agreement and the names of the Conduct Noteholders, the aggregate
principal amounts of such notes and the number of shares issuable upon
conversion in full of such note as of the date of this Agreement.

           (b) All of the outstanding Conduct Ordinary Shares and Conduct
Preferred Shares have been duly authorized and validly issued and are fully paid
and nonassessable. Except as set forth on Part 2.3(b), there are no preemptive
rights applicable to any capital shares of Conduct or Subsidiary.

           (c) Except as identified in Section 2.3(a), as of the date of this
Agreement, there is no: (i) outstanding subscription, option, call, warrant or
right (whether or not currently exercisable) to acquire any shares of the
capital shares or other securities of Conduct or Subsidiary; or (ii) outstanding
security, instrument or obligation that is or may become convertible into or
exchangeable for any shares of the capital shares or other securities of Conduct
or Subsidiary.

           (d) No capital shares or other securities have been repurchased,
redeemed or otherwise reacquired by Conduct.

           (e) All outstanding Conduct Capital Shares have been issued in
compliance with (i) all applicable securities laws and other applicable Legal
Requirements, and (ii) all requirements set forth in applicable Contracts.

      2.4  Financial Statements.

           (a) Conduct has delivered to Mercury the following financial
statements and notes (collectively, the "Conduct Financial Statements"):

                (i) the audited consolidated balance sheets of Conduct as of
December 31, 1998, 1997 and 1996, and the related audited consolidated
statements of income, statements of shareholders' equity and statements of cash
flows of Conduct for the years then ended, together with the notes thereto; and

                                       9
<PAGE>

                (ii) the unaudited consolidated balance sheet of Conduct as of
September 30, 1999 (the "Unaudited Interim Balance Sheet"), and the related
unaudited consolidated statement of income of Conduct for the nine months then
ended.
           (b) Conduct Financial Statements are accurate and complete in all
material respects and present fairly the financial position of Conduct as of the
respective dates thereof and the results of operations and cash flows of Conduct
for the periods covered thereby. Conduct Financial Statements have been prepared
in accordance with generally accepted accounting principles applied on a
consistent basis throughout the periods covered (except that the financial
statements referred to in Section 2.4(a)(ii) do not contain footnotes and are
subject to normal and recurring year-end audit adjustments, which will not,
individually or in the aggregate, be material in magnitude).

     2.5 Absence of Changes. Except as set forth in Part 2.5 of the Disclosure
Schedule, and except with respect to the actions contemplated by this agreement
since September 30, 1999:

           (a)  there has not been any material adverse change in Conduct's or
Subsidiary's business, condition, assets, liabilities, operations or financial
performance, and no event has occurred that will, or could reasonable be
expected tohave a Material Adverse Effect on Conduct;

           (b) there has not been any material loss, damage or destruction to,
or any interruption in the use of, any of Conduct's or Subsidiary's assets
(whether or not covered by insurance);

           (c) Neither Conduct nor Subsidiary has declared, accrued, set aside
or paid any dividend or made any other distribution in respect of any capital
shares, and has not repurchased, redeemed or otherwise reacquired any capital
shares or other securities;

           (d) Neither Conduct nor Subsidiary has sold, issued or authorized the
issuance of (i) any capital shares or other security, (ii) any option, call,
warrant or right to acquire, or otherwise relating to, any capital shares or any
other security, or (iii) any instrument convertible into or exchangeable for any
capital shares or other security;

           (e) Neither Conduct nor Subsidiary has made any capital expenditure
which individually exceeds $10,000 or, when added to all other capital
expenditures made by Conduct since September 30, 1999, exceeds $25,000 in the
aggregate;

           (f) Neither Conduct nor Subsidiary has (i) entered into or permitted
any of the assets owned or used by it to become bound by any Material Contract
(as defined in Section 2.10(a)), or (ii) amended or prematurely terminated, or
waived any material right or remedy under any Material Contract to which it is
or was a party or under which it has or had any rights or obligations;

           (g) Neither Conduct nor Subsidiary has (i) acquired, leased or
licensed any right or other assets from any other Person (other than immaterial
rights or other immaterial assets acquired, leased or licensed by Conduct from
other Persons in the ordinary course of

                                       10
<PAGE>

business and consistent with Conduct's past practices), (ii) sold, assigned or
otherwise disposed of, or leased or licensed, any right or other asset to any
other Person (other than immaterial rights or other immaterial assets disposed
of or leased or licensed by Conduct to other Persons in the ordinary course of
business and consistent with Conduct's past practices), or (iii) waived or
relinquished any right (other than immaterial rights waived or relinquished by
Conduct in the ordinary course of business and consistent with Conduct's past
practices);

           (h) Neither Conduct nor Subsidiary has written off as uncollectible,
or established any extraordinary reserve with respect to, any account receivable
or other indebtedness;

           (i) Neither Conduct nor Subsidiary has made any pledge of any of its
assets or otherwise permitted any of its assets to become subject to any
Encumbrance, except for pledges of immaterial assets made in the ordinary course
of business and consistent with Conduct's past practices;

           (j) Neither Conduct nor Subsidiary has (i) lent money to any Person,
or (ii) incurred or guaranteed any indebtedness for borrowed money;

           (k) Neither Conduct nor Subsidiary has (i) established, adopted or
amended any Employee Benefit Plan, or (ii) made any profit-sharing or similar
payment to any of its directors, officers or employees;

           (l) Neither Conduct nor Subsidiary has materially changed any of its
methods of accounting or accounting practices in any respect;

           (m)  Neither Conduct nor Subsidiary has made any Tax election;

           (n) Neither Conduct nor Subsidiary has commenced or settled any
material Legal Proceeding;

           (o) Neither Conduct nor Subsidiary has entered into any material
transaction or taken any other material action outside the ordinary course of
business or inconsistent with its past practices; and

           (p) Conduct has not agreed or committed to take any of the actions
referred to in clauses "(c)" through "(o)" above.

     2.6   Title to Assets.

           (a) Except as set forth in Part 2.6(a) of the Disclosure Schedule,
Conduct owns, and has good, valid and marketable title to, all material assets
purported to be owned by it, including: (i) all material assets reflected on the
Unaudited Interim Balance Sheet (except for those disposed of in the ordinary
course of business since September 30, 1999); (ii) all material assets referred
to in Parts 2.8 and 2.9 of the Disclosure Schedule and all of Conduct's rights
under the Contracts identified in Part 2.10(a) of the Disclosure Schedule; and
(iii) all other material assets reflected in Conduct's books and records as
being owned by Conduct. Except as

                                       11
<PAGE>

set forth in Part 2.6(a) of the Disclosure Schedule, all of said material assets
are owned by Conduct free and clear of any liens or other Encumbrances, except
for (i) any lien for current taxes not yet due and payable, and (ii) minor liens
that have arisen in the ordinary course of business and that do not (in any case
or in the aggregate) materially detract from the value of the assets subject
thereto or materially impair the operations of Conduct.

           (b) Part 2.6(b) of the Disclosure Schedule identifies all assets that
are being leased or licensed to Conduct, except for (i) any equipment being
leased to Conduct under a standard operating lease requiring annual payments by
Conduct of less than $12,000, and (ii) any software being licensed to Conduct
under any third party software license generally available to the public at a
total cost of less than $10,000.

     2.7   Bank Accounts; Receivables; Customers.

           (a) Part 2.7(a) of the Disclosure Schedule provides accurate and
complete information (including account numbers, type of account and names of
all individuals authorized to draw on or make withdrawals from each account)
with respect to each account maintained by or for the benefit of Conduct or
Subsidiary at any bank or other financial institution.

           (b) Except as set forth in Part 2.7(b) of the Disclosure Schedule,
all existing accounts receivable of Conduct or Subsidiary (including those
accounts receivable reflected on the Unaudited Interim Balance Sheet that have
not yet been collected and those accounts receivable that have arisen since
September 30, 1999 and have not yet been collected) (i) represent valid
obligations of customers of Conduct or Subsidiary arising from bona fide
transactions entered into in the ordinary course of business, and (ii) no
request or agreement for deduction or discount has been made with respect to any
amounts receivable.

            (c) Part 2.7(c) of the Disclosure Schedule (i) identifies and
provides an accurate and complete breakdown of the revenues received from each
customer or other Person that accounted for more than 5% of the revenues of
Conduct in the fiscal year ended December 31, 1998 and the nine months ending
September 30, 1999. and (ii) identifies each customer that is obligated to make
payments to Conduct in an aggregate amount exceeding $25,000 per year. Conduct
has not received any notice or other communication indicating that any customer
or other Person identified in Part 2.7(c) of the Disclosure Schedule intends or
expects to cease dealing with Conduct or to effect a material reduction in the
volume of business transacted by such Person with Conduct below historical
levels: except where the termination or modification of such customer
relationship would not, individually or in to aggregate, have a Material Adverse
Effect on the Conduct or Subsidiary

     2.8   Equipment; Leasehold.

           (a) The equipment owned or leased by Conduct and Subsidiary is, taken
as a whole, adequate for the uses to which it is being put, is in good condition
and repair (ordinary wear and tear excepted) and is adequate for the conduct of
Conduct's business in the manner in which such business is currently being
conducted.

                                       12
<PAGE>

           (b) Neither Conduct nor Subsidiary owns any real property or any
interest in real property, except for the leasehold created under the real
property leases identified in Part 2.8(b) of the Disclosure Schedule.

     2.9   Proprietary Assets.

           (a) Part 2.9(a)(1) of the Disclosure Schedule sets forth, with
respect to each Conduct Proprietary Asset that has been registered, recorded or
filed with any Governmental Body or with respect to which an application has
been filed with any Governmental Body, (i) a brief description of such Conduct
Proprietary Asset, and (ii) the names of the jurisdictions covered by the
applicable registration, recordation, filing or application. Part 2.9(a)(2) of
the Disclosure Schedule identifies the Conduct Proprietary Assets owned by
Conduct or Subsidiary as set forth in the product brochures or the product
specifications attached as Part 2.9(a)(2) of the Disclosure Schedule. Part
2.9(a)(3) of the Disclosure Schedule identifies and provides a brief description
of each Conduct Proprietary Asset that is owned by any other Person and that is
licensed to or used by Conduct or Subsidiary (except for any Conduct Proprietary
Asset that is licensed to Conduct or Subsidiary under any third party software
license that (1) is generally available to the public at a cost of less than
$5,000, and (2) imposes no future monetary obligation on Conduct or Subsidiary)
and identifies the license agreement or other agreement under which such Conduct
Proprietary Asset is being licensed to or used by Conduct or Subsidiary. Except
as set forth in Part 2.9(a)(4) of the Disclosure Schedule, Conduct has good,
valid and marketable title to all of the Conduct Proprietary Assets identified
in Parts 2.9(a)(1) and 2.9(a)(2) of the Disclosure Schedule, free and clear of
all liens and other Encumbrances, and has a valid right to use all Proprietary
Assets identified in Part 2.9(a)(3) of the Disclosure Schedule. Except as set
forth in Part 2.9(a)(5) of the Disclosure Schedule, neither Conduct nor
Subsidiary is obligated to make any payment to any Person for the use of any
Conduct Proprietary Asset. Except as set forth in Part 2.9(a)(6) of the
Disclosure Schedule, Conduct is free to use, modify, copy, distribute, sell,
license or otherwise exploit each of the Conduct Proprietary Assets on an
exclusive basis (other than Conduct Proprietary Assets consisting of software
licensed to Conduct or Subsidiary under third party licenses generally available
to the public, with respect to which Conduct's rights are not exclusive).

           (b) Conduct and Subsidiary have taken all reasonable measures and
precautions necessary to protect and maintain the confidentiality and secrecy of
all Conduct Proprietary Assets (except Conduct Proprietary Assets whose value
would be unimpaired by public disclosure), and otherwise to maintain and protect
the value of all Conduct Proprietary Assets. Except as set forth in Part 2.9(b)
of the Disclosure Schedule, neither Conduct nor Subsidiary have disclosed nor
delivered nor permitted to be disclosed or delivered to any Person, and, no
Person, to the Company's and Subsidiary's Knowledge (other than Conduct or
Subsidiary), has access to or has any rights with respect to, the source code,
or any portion or aspect of the source code, of any Conduct Proprietary Asset.

           (c) To Conduct and Subsidiary's Knowledge, none of Conduct
Proprietary Assets infringes or conflicts with any Proprietary Asset owned or
used by any other Person. Except as set forth in Part 2.9(c) of the Disclosure
Schedule, to Conduct and Subsidiary's Knowledge, neither Conduct nor Subsidiary
is infringing, misappropriating or making any

                                       13
<PAGE>

unlawful use of, and neither Conduct nor Subsidiary has at any time infringed,
misappropriated or made any unlawful use of, or received any written notice or
other communication of any actual, alleged, possible or potential infringement,
misappropriation or unlawful use of, any Proprietary Asset owned or used by any
other Person. Except as set forth in Part 2.9(c) of the Disclosure Schedule, to
Conduct and Subsidiary's Knowledge, no other Person is infringing,
misappropriating or making any unlawful use of, and no Proprietary Asset owned
or used by any other Person infringes or conflicts with, any Conduct Proprietary
Asset.

           (d) Conduct Proprietary Assets constitute all the Proprietary Assets
necessary to enable Conduct to conduct its business in the manner in which such
business is currently being conducted. Except as set forth in Part 2.9(d) of the
Disclosure Schedule, (i) neither Conduct nor Subsidiary has licensed any of
Conduct Proprietary Assets to any Person on an exclusive basis, and (ii) neither
Conduct nor Subsidiary has entered into any covenant not to compete or Contract
limiting its ability to exploit fully any of the Conduct Proprietary Assets or
to transact business in any market or geographical area or with any Person.

           (e) Except as set forth in Part 2.9(e) of the Disclosure Schedule,
all current and former employees of Conduct and Subsidiary, and all current and
former consultants and independent contractors to Conduct and Subsidiary, have
executed and delivered to Conduct or Subsidiary, as applicable, written
agreements (containing no exceptions to or exclusions from the scope of their
coverage) that are substantially identical to the form of Employee Invention
Assignment and Confidentiality Agreement attached to Part 2.9(e) of the
Disclosure Schedule.

           (f) Except as set forth in Part 2.9(f) of the Disclosure Schedule,
neither Conduct nor Subsidiary has entered into and is not bound by any Contract
under which any Person has the right to distribute or license, on a commercial
basis, any Conduct Proprietary Asset including source code, object code, or any
versions, modifications or derivative works of source code or object code in any
Conduct Proprietary Asset.

           (g) To Conduct's and Subsidiary's Knowledge, each computer program
and other item of software owned by Conduct or Subsidiary is Year 2000
Compliant. To Conduct and Subsidiary's Knowledge, each computer program and
other item of software that has been designed, developed, sold, installed,
licensed or otherwise made available by Conduct or Subsidiary to any Person is
Year 2000 Compliant. As used in this Section 2.9(g), "Year 2000 Compliant"
means, with respect to a computer program or other item of software (i) the
functions, calculations, and other computing processes of the program or
software (collectively, "Processes") perform in a consistent and correct manner
without interruption regardless of the date on which the Processes are actually
performed and regardless of the date input to the applicable computer system,
whether before, on, or after January 1, 2000; (ii) the program or software
accepts, calculates, compares, sorts, extracts, sequences, and otherwise
processes date inputs and date values, and returns and displays date values, in
a consistent and correct manner regardless of the dates used whether before, on,
or after January 1, 2000; (iii) the program or software accepts and responds to
year input, if any, in a manner that resolves any ambiguities as to century in a
defined, predetermined, and appropriate manner; (iv) the program or software
stores and displays date information in ways that are unambiguous as to the
determination of the century; and (v) leap years will be determined by the
following standard (A) if dividing the year

                                       14
<PAGE>

by 4 yields an integer, it is a leap year, except for years ending in 00, but
(B) a year ending in 00 is a leap year if dividing it by 400 yields an integer.

     2.10   Contracts.

           (a) Part 2.10(a) of the Disclosure Schedule identifies each Conduct
Contract that constitutes a "Material Contract." (For purposes of this
Agreement, each of the following (and each other Contract that is material to
the business of Conduct and Subsidiary taken together as a whole) shall be
deemed to constitute a "Material Contract":

                (i) any Contract relating to the employment or engagement of, or
the performance of services by, any employee, consultant or independent
contractor (other than offer letters which do not contain any payments to an
employee which become due upon termination of employment);

                (ii) any Contract relating to the acquisition, transfer, use,
development, sharing or license of any technology or any Proprietary Asset
(except for Contracts with respect to any Proprietary Asset that is licensed to
Conduct or Subsidiary under any third party software license that (1) is
generally available to the public at a cost of less than $5,000, and (2) imposes
no future monetary obligation on Conduct or Subsidiary);

                (iii) any Contract imposing any restriction on Conduct's or
Subsidiary's right or ability (A) to compete with any other Person, (B) to
acquire any product or other asset or any services from any other Person, to
sell any product or other asset to or perform any services for any other Person
or to transact business or deal in any other manner with any other Person, or
(C) to develop or distribute any technology;

                (iv) any Contract creating or involving any agency relationship,
distribution arrangement or franchise relationship;

                (v) any Contract creating or relating to the creation of any
material Encumbrance with respect to any material asset owned or used by Conduct
or Subsidiary;

                (vi) any Contract involving or incorporating any guaranty, any
pledge, any performance or completion bond, any indemnity, any right of
contribution or any surety arrangement;

                (vii) any Contract creating or relating to any partnership or
joint venture or any sharing of revenues, profits, losses, costs or liabilities;

                (viii) any Contract relating to the purchase or sale of any
product or other asset by or to, or the performance of any services by or for,
any Related Party (as defined in Section 2.19);

                (ix) any Contract to which any Governmental Body is a party or
under which any Governmental Body has any rights or obligations, or involving or
directly or indirectly benefiting any Governmental Body (including any
subcontract or other Contract between Conduct and any contractor or
subcontractor to any Governmental Body);

                (x) any Contract entered into outside the ordinary course of
business or inconsistent with Conduct's past practices;

                                       15
<PAGE>

                (xi) any written Contract between Conduct and Subsidiary;

                (xii) any Contract that has a term of more than 90 days and that
may not be terminated by Conduct or Subsidiary (without penalty) within 90 days
after the delivery of a termination notice by Conduct or Subsidiary; and

                (xiii) any Contract (not otherwise identified in clauses "(i)"
through "(xii)" of this sentence) that contemplates or involves (A) the payment
or delivery of cash or other consideration in an amount or having a value in
excess of $25,000 in the aggregate, or (B) the performance of services having a
value in excess of $25,000 in the aggregate.

           (b) Conduct has delivered or made available to Mercury accurate and
complete copies of all Contracts identified in Part 2.10(a) of the Disclosure
Schedule, including all amendments thereto. Each Contract identified in Part
2.10(a) of the Disclosure Schedule is valid and in full force and effect, and is
enforceable by Conduct or Subsidiary in accordance with its terms, subject to
(i) laws of general application relating to bankruptcy, insolvency and the
relief of debtors, and (ii) rules of law governing specific performance,
injunctive relief and other equitable remedies.

           (c)  Except as set forth in Part 2.10(c) of the Disclosure Schedule:

                (i) Neither Conduct nor Subsidiary has committed any material
breach or default under any Conduct Contract, and, to the Knowledge of Conduct
and Subsidiary, no other Person has committed any material breach or default
under any Conduct Contract;

                (ii) to the Knowledge of Conduct and Subsidiary, no event has
occurred, and no circumstance or condition exists, that (with or without notice
or lapse of time) will, or could reasonably be expected to, (A) result in a
material violation or breach of any of the provisions of any Conduct Contract,
(B) give any Person the right to declare a default or exercise any remedy under
any Conduct Contract, (C) give any Person the right to accelerate the maturity
or performance of any Conduct Contract, or (D) give any Person the right to
cancel, terminate or materially modify any Conduct Contract;

                (iii) Neither Conduct nor Subsidiary has received any written
notice or other communication regarding (i) any material violation or breach of,
or default under, any Conduct Contract, or (ii) any termination of any material
Conduct Contract; and

                (iv) Neither Conduct nor Subsidiary has waived any of its
material rights under any Contract.

                                       16
<PAGE>

          (d)  No Person is renegotiating, or has the right to renegotiate, any
amount paid or payable to Conduct or Subsidiary under any Conduct Contract or
any other term or provision of any Conduct Contract.

          (e)  The Contracts identified in Part 2.10(a) of the Disclosure
Schedule collectively constitute all of the Material Contracts necessary to
enable Conduct and Subsidiary to conduct the business in the manner in which the
business is currently being conducted.

    2.11  Liabilities.

          (a)  Neither Conduct nor Subsidiary has accrued, contingent or other
liabilities of any nature, either matured or unmatured (whether or not required
to be reflected in financial statements in accordance with generally accepted
accounting principles, and whether due or to become due), except for: (i)
liabilities identified as such in the "liabilities" column of the Unaudited
Interim Balance Sheet; (ii) liabilities incurred in the ordinary course of
business (and in compliance with this Agreement) since the date of the Unaudited
Interim Balance Sheet; (iii) liabilities for future performance under existing
Material Contracts (iv) accounts payable or accrued salaries that have been
incurred by Conduct or Subsidiary since September 30, 1999 in the ordinary
course of business and consistent with Conduct's past practices; (v) the
liabilities identified in Part 2.11(a) of the Disclosure Schedule; (vi)
transaction expenses incurred in connection with this Agreement and (vii)
liabilities (other than those provided for separately in sections (i), (ii),
(iii), (iv), (v) and (vi) of this Section 2.11) which do not exceed $10,000,
individually or in the aggregate.

          (b)  Part 2.11(b) of the Disclosure Schedule provides an accurate and
complete breakdown of: (i) all accounts payable of Conduct and Subsidiary as of
September 30, 1999, (ii) all notes payable of Conduct or Subsidiary and all
indebtedness of Conduct or Subsidiary for borrowed money, (iii) all customer
deposits and other deposits held by Conduct or Subsidiary as of September 30,
1999; and (iv) deferred revenue, warranty or obligations to deliver services,
support or upgrades.

    2.12  Compliance with Legal Requirements.  Except as set forth in Part 2.12
of the Disclosure Schedule, Conduct and Subsidiary each is, in substantial
compliance with each Legal Requirement that is applicable in any material
respect to the conduct of its business or the ownership of its assets. No event
has occurred, and no condition or circumstance exists, that might (with or
without notice or lapse of time) constitute or result directly or indirectly in
a material violation by Conduct or Subsidiary of, or a failure in any material
respect on the part of Conduct or Subsidiary to comply with, any material Legal
Requirement. Except as set forth in Part 2.12 of the Disclosure Schedule,
neither Conduct nor Subsidiary has ever received any written notice or other
communication from any Governmental Body regarding any actual or possible
material violation of, or failure to comply with, any material Legal
Requirement.

    2.13  Governmental Authorizations.  Part 2.13 of the Disclosure Schedule
identifies each Governmental Authorization held by Conduct or Subsidiary, and
Conduct has delivered to Mercury accurate and complete copies of all
Governmental Authorizations identified in Part 2.13 of the Disclosure Schedule.
The Governmental Authorizations identified in Part 2.13 of the

                                       17
<PAGE>

Disclosure Schedule are valid and in full force and effect, and collectively
constitute all Governmental Authorizations necessary to enable Conduct and
Subsidiary to conduct the business in the manner in which their business is
currently being conducted except such Governmental Authorizations that no
Governmental Body has demanded to be obtained or of which Conduct and Subsidiary
are unaware, or which the failure to obtain if required, would not have a
Material Adverse Effect on Conduct or Subsidiary. Conduct and Subsidiary each is
in compliance with the material terms and requirements of the respective
Governmental Authorizations identified in Part 2.13 of the Disclosure Schedule.
Neither Conduct nor Subsidiary has ever received any written notice or other
written communication from any Governmental Body regarding (a) any material
violation of or failure to comply with any material term or requirement of any
Governmental Authorization, or (b) any revocation, withdrawal, suspension,
cancellation, termination or modification of any Governmental Authorization.

    2.14  Tax Matters.

          (a)  Except as set forth in Part 2.14(a) of the Disclosure Schedule,
all material Tax Returns required to be filed by or on behalf of Conduct or
Subsidiary with any Governmental Body on or before the date hereof (the "Conduct
Returns") (i) have been filed in a timely manner, and (ii) to Conduct's and
Subsidiary's Knowledge, have been accurately and completely prepared in any
material respect in compliance with all applicable Legal Requirements. All
material amounts shown on Conduct Returns to be due on or before the date hereof
have been paid. Conduct has delivered to Mercury accurate and complete copies of
all Conduct Returns filed since the date of Conduct's incorporation.

          (b)  Except as set forth in Part 2.14(b) of the Disclosure Schedule,
each Tax required to have been paid, or claimed by any Governmental Body to be
payable, by Conduct or Subsidiary (whether pursuant to any Tax Return or
otherwise) has been to the extent material duly paid in full on a timely basis.
Any Tax required to have been withheld or collected by Conduct or Subsidiary has
been duly withheld and collected on a timely basis; and (to the extent required)
each such Tax has been paid to the appropriate Governmental Body on a timely
basis or adequately reserved in the Conduct financial statements.

          (c)  Conduct Financial Statements fully accrue all actual and
contingent material liabilities for Taxes with respect to all periods through
the dates thereof in accordance with generally accepted accounting principles.
Conduct has established, in the ordinary course of business and consistent with
its past practices, reserves adequate for the payment of all Taxes for the
period from September 30, 1999 through the date hereof.

          (d)  No Conduct Return relating to income Taxes has ever been examined
or audited by any Governmental Body. Except as set forth in Part 2.14(d) of the
Disclosure Schedule, there has been no examination or audit of any Conduct
Return, and no such examination or audit has been proposed or scheduled by any
Governmental Body. Conduct has delivered to Mercury accurate and complete copies
of all audit reports and similar documents (to which Conduct has access)
relating to Conduct Returns. No extension or waiver of the limitation

                                       18
<PAGE>

period applicable to any of Conduct Returns has been granted (by Conduct,
Subsidiary or any other Person), and no such extension or waiver has been
requested from Conduct.

          (e)  No claim or Legal Proceeding is pending or to the Knowledge of
Conduct or Subsidiary has been threatened against or with respect to Conduct or
Subsidiary in respect of any Tax. There are no unsatisfied liabilities for Taxes
(including liabilities for interest, additions to tax and penalties thereon and
related expenses) with respect to any notice of deficiency or similar document
received by Conduct or Subsidiary. There are no liens for Taxes upon any of the
assets of Conduct, except liens for current Taxes not yet due and payable.
Subsidiary has not entered into or become bound by any agreement or consent
pursuant to Section 341(f) of the Code. Subsidiary has not been, and will not
be, required to include any adjustment in taxable income for any tax period (or
portion thereof) pursuant to Section 481 or 263A of the Code or any comparable
provision under state or foreign Tax laws as a result of transactions or events
occurring, or accounting methods employed, prior to the date hereof. Conduct
will not be required to include any adjustment in its taxable income for any tax
period (or portion thereof) as a result of transactions or events occurring, or
accounting methods employed, prior to the date hereof.

          (f)  There is no agreement, plan, arrangement or other Contract
covering any employee or independent contractor or former employee or
independent contractor of Subsidiary that, considered individually or considered
collectively with any other such Contracts, will, or could reasonably be
expected to, give rise directly or indirectly to the payment of any amount that
would not be deductible pursuant to Section 280G or Section 162 of the Code.
Neither Conduct or Subsidiary is, and has never been, a party to or bound by any
tax indemnity agreement, tax sharing agreement, tax allocation agreement or
similar Contract.

          (g)  Except as set forth in Part 2.14(g) of the Disclosure Schedule,
since Conduct's incorporation, (i) no Governmental Body has asserted any claim
or otherwise made any allegation that Conduct or Subsidiary has failed or may
have failed to pay any sales tax, use tax or similar Tax, and (ii) neither
Conduct or Subsidiary has engaged in any discussions or negotiations with any
Governmental Body, and has not sent any written communication to or received any
written communication from any Governmental Body, in connection with any
possible failure on the part of Conduct or Subsidiary to pay any sales tax, use
tax or similar Tax.

          (h)  Subsidiary has disclosed on its federal income Tax Returns all
positions taken therein that could give rise to a substantial understatement of
federal income Tax within the meaning of Code (S)6662. Subsidiary (A) has not
been a member of an affiliated group filing a consolidated federal income Tax
Return and (B) does not have any Liability for the Taxes of any other Person
under Reg. (S)1.1502-6 (or any similar provision of state, local, or foreign
law), as a transferee or successor, by contract, or otherwise.

          (i)  Conduct has not been required to file a United States federal
income tax return or any state income tax return for any year. Conduct has had
no income which is effectively connected with a US trade or business under Code
section 864. Except as set forth in Part 2.14(i) of the Disclosure Schedule,
Conduct is not a party to an Advance Pricing Agreement (or any similar agreement
under foreign law) and all transactions between Conduct and

                                       19
<PAGE>

Subsidiary (and any other commonly controlled parties) have been in accordance
with the arm's length standard in compliance with Code section 482 and the
treasury regulations thereunder.

    2.15  Employee and Labor Matters; Benefit Plans.

          (a)  Part 2.15(a) of the Disclosure Schedule contains a list of all
employees of Conduct or Subsidiary as of the date of this Agreement, and
correctly reflects their salaries, any other compensation payable to them
(including compensation payable pursuant to bonus, deferred compensation or
commission arrangements), their dates of employment and their positions and
their vacation accruals as of September 30, 1999. Neither Conduct or Subsidiary
is, and has never been, a party to any collective bargaining contract or other
Contract with a labor union involving any of its employees.

          (b)  To the Knowledge of Conduct or Subsidiary, there is no employee
of Conduct or Subsidiary who is not fully available to perform work because of
disability or other leave, except as set forth in Part 2.15(b). The employment
of each employee of Conduct or Subsidiary is terminable by Conduct or Subsidiary
at will. Conduct has made available copies of all employee manuals and
handbooks, disclosure materials, policy statements and other materials relating
to the employment of the current employees of Conduct and Subsidiary.

          (c)  Part 2.15(c) of the Disclosure Schedule identifies each bonus,
deferred compensation, incentive compensation, stock purchase, stock option,
severance pay, termination pay, hospitalization, medical, insurance,
supplemental unemployment benefits, profit-sharing, pension or retirement plan,
program or agreement (individually referred to as a "Plan" and collectively
referred to as the "Plans") sponsored, maintained, contributed to or required to
be contributed to by Conduct or Subsidiary for the benefit of any current or
former employee of Conduct or Subsidiary.

          (d)  Except as set forth in Parts 2.15(c) or 2.15(d) of the Disclosure
Schedule, neither Conduct nor Subsidiary maintains, sponsors or contributes to,
and has not at any time in the past maintained, sponsored or contributed to, any
employee pension benefit plan (as defined in Section 3(2) of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA") , which applies to
such employees, whether or not excluded from coverage under specific Titles or
Merger Subtitles of ERISA and as required pursuant to the Israeli Severance
Payment Law - 1963, applicable collective agreements and extension orders) for
the benefit of employees or former employees of Conduct or Subsidiary (a
"Pension Plan").

          (e)  Except as set forth in Parts 2.15(c) or 2.15(e) of the Disclosure
Schedule, neither Conduct or Subsidiary maintains, sponsors or contributes to
any employee welfare benefit plan (as defined in Section 3(1) of ERISA, whether
or not excluded from coverage under specific Titles or Merger Subtitles of
ERISA) for the benefit of employees or former employees of Conduct or Subsidiary
(a "Welfare Plan") except for those Welfare Plans described in Part 2.15(e) of
the Disclosure Schedule, none of which is a multiemployer plan (within the
meaning of Section 3(37) of ERISA).

          (f)  With respect to each Plan, Conduct has delivered to Mercury:

                                       20
<PAGE>

               (i)   an accurate and complete copy of such Plan (including all
amendments thereto);

               (ii)  an accurate and complete copy of the annual report (if
required under ERISA) with respect to such Plan for each of 1997 and 1998;

               (iii) an accurate and complete copy of (A) the most recent
summary plan description, together with each Summary of Material Modifications
(if required under ERISA) with respect to such Plan, and (B) each material
employee communication relating to such Plan;

               (iv)  if such Plan is funded through a trust or any third party
funding vehicle, an accurate and complete copy of the trust or other funding
agreement (including all amendments thereto) and accurate and complete copies
the most recent financial statements thereof;

               (v)   accurate and complete copies of all Contracts relating to
such Plan, including service provider agreements, insurance contracts, minimum
premium contracts, stop-loss agreements, investment management agreements,
subscription and participation agreements and recordkeeping agreements; and

               (vi)  an accurate and complete copy of the most recent
determination, opinion, notification, or advisory letter received from the
Internal Revenue Service with respect to such Plan (if such Plan is intended to
be qualified under Section 401(a) of the Code).

          (g)  Except with respect to each other, neither Conduct nor Subsidiary
is and has never been required to be treated as a single employer with any other
Person under Section 4001(b)(1) of ERISA or Section 414(b), (c), (m) or (o) of
the Code. Neither Conduct or Subsidiary has ever been a member of an "affiliated
service group" within the meaning of Section 414(m) of the Code. Neither Conduct
or Subsidiary has ever made a complete or partial withdrawal from a
"multiemployer plan" (as defined in Section 3(37) of ERISA) resulting in
"withdrawal liability" (as defined in Section 4201 of ERISA), without regard to
subsequent reduction or waiver of such liability under either Section 4207 or
4208 of ERISA.

          (h)  Neither Conduct or Subsidiary has any plan or commitment to
create any additional Welfare Plan or any Pension Plan, or to modify or change
any existing Welfare Plan or Pension Plan (other than to comply with applicable
law).

          (i)  No Welfare Plan provides death, medical or health benefits
(whether or not insured) with respect to any current or former employee of
Conduct or Subsidiary after any such employee's termination of service (other
than (i) benefit coverage mandated by applicable law, including coverage
provided pursuant to Section 4980B of the Code, (ii) deferred compensation
benefits accrued as liabilities on the Unaudited Interim Balance Sheet, and
(iii) benefits the full cost of which are borne by current or former employees
of Conduct or Subsidiary (or their beneficiaries)).

                                       21
<PAGE>

          (j)  With respect to each of the Welfare Plans constituting a group
health plan within the meaning of Section 4980B(g)(2) of the Code, the
provisions of Section 4980B of the Code ("COBRA") have been complied with in all
material respects.

          (k)  Each of the Plans has been operated and administered in all
material respects in accordance with applicable Legal Requirements, including
ERISA and the Code.

          (l)  Each of the Plans intended to be qualified under Section 401(a)
of the Code has either received a favorable determination, opinion, notification
or advisory letter from the Internal Revenue Service with respect to each such
plan as to its qualified status under the Code, or has remaining a period of
time under applicable Treasury regulations or IRS pronouncements in which to
apply for such a letter, and neither Conduct nor Subsidiary is aware of any
reason why any such determination letter should be revoked.

          (m)  Except as set forth in Part 2.15(m) of the Disclosure Schedule,
neither the execution, delivery or performance of this Agreement, nor the
consummation of the transactions contemplated by this Agreement, will result in
any bonus payment, golden parachute payment, severance payment or other payment
to any current or former employee or director of Conduct or Subsidiary (whether
or not under any Plan), or materially increase the benefits payable under any
Plan, or result in any acceleration of the time of payment or vesting of any
such benefits.

          (n)  Except as set forth in Part 2.15(n) of the Disclosure Schedule,
Conduct and Subsidiary are in compliance in all material respects with all
applicable Legal Requirements and Contracts relating to employment, employment
practices, employee compensation, wages, bonuses and terms and conditions of
employment.

          (o)  Conduct and Subsidiary have good labor relations, and, except as
set forth in Part 2.15(o) of the Disclosure Schedule, neither Conduct nor
Subsidiary has any Knowledge of any facts indicating that (i) the consummation
of the transactions contemplated by this Agreement will have a material adverse
effect on Conduct's or Subsidiary's labor relations, or (ii) any of Conduct's or
Subsidiary's employees intends to terminate his or her employment with Conduct
or Subsidiary, as applicable. To the Knowledge of Conduct and Subsidiary no
employee of Conduct or Subsidiary is a party to or is bound by any
confidentiality agreement, noncompetition agreement or other Contract (with any
Person) that may have an adverse effect on (A) the performance by such employee
of any of his duties or responsibilities as an employee of Conduct or
Subsidiary, or (B) the business or operations of Conduct and Subsidiary.

    2.16  Environmental Matters. To Conduct's Knowledge, Conduct is and has at
all times been in compliance with all applicable Israeli environmental laws and
regulations. There is no pending or, to Conduct's Knowledge, threatened Legal
Proceeding alleging violation of, or requesting compliance by Conduct with,
Israeli environmental laws and regulations.

    2.17  Sale of Products; Performance of Services.

          (a)  Except as set forth in Part 2.17(a) of the Disclosure Schedule,
to Conduct's and Subsidiary's Knowledge, each product, system, program,
Proprietary Asset or other asset designed, developed, manufactured, assembled,
sold, installed, repaired, licensed or

                                       22
<PAGE>

otherwise made available by Conduct or Subsidiary to any Person: (i) conformed
and complied in all material respects with the terms and requirements of any
applicable warranty or other Contract and with all material applicable Legal
Requirements; and (ii) was free of any bug, virus, design defect or other defect
or deficiency at the time it was sold or otherwise made available, other than
any immaterial bug or similar defect that would not adversely affect in any
material respect such product, system, program, Proprietary Asset or other asset
(or the operation or performance thereof).

          (b)  To Conduct's and Subsidiary's Knowledge, all installation
services, design services, development services, programming services, repair
services, maintenance services, support services, training services, upgrade
services and other services that have been performed by Conduct or Subsidiary
were performed properly and in conformity in all material respects with the
terms and requirements of all applicable warranties and other Contracts and with
all material applicable Legal Requirements.

          (c)  Neither Conduct nor Subsidiary will incur or otherwise become
subject to any material Liability arising directly or indirectly from (i) any
product, system, program, Proprietary Asset or other asset designed, developed,
manufactured, assembled, sold, installed, repaired, licensed or otherwise made
available by Conduct or Subsidiary, or (ii) any installation services, design
services, development services, programming services, repair services,
maintenance services, support services, training services, upgrade services or
other services performed by Conduct or Subsidiary.

          (d)  Except as set forth in Part 2.17(d) of the Disclosure Schedule,
no customer or other Person has ever asserted or, to Conduct's or Subsidiary's
Knowledge, threatened to assert any claim against Conduct or Subsidiary (i)
under or based upon any warranty provided by or on behalf of Conduct or
Subsidiary, or (ii) under or based upon any other warranty relating to any
product, system, program, Proprietary Asset or other asset designed, developed,
manufactured, assembled, sold, installed, repaired, licensed or otherwise made
available by Conduct or Subsidiary or any services performed by Conduct or
Subsidiary. To the Knowledge of Conduct and Subsidiary, no material event has
occurred, and no condition or circumstance exists, that might (with or without
notice or lapse of time) give rise to or serve as a basis for the assertion of
any such claim.

    2.18  Insurance. Part 2.18 of the Disclosure Schedule identifies each
insurance policy maintained by, at the expense of or for the benefit of Conduct
and Subsidiary.  Conduct has delivered to Mercury accurate and complete copies
of the insurance policies identified in Part 2.18 of the Disclosure Schedule.
Each of the insurance policies identified in Part 2.18 of the Disclosure
Schedule is in full force and effect.

    2.19  Related Party Transactions. Except as set forth in Part 2.19 of the
Disclosure Schedule and except for this agreement and the transactions
contemplated hereby:  (a) no Related Party has, and no Related Party has at any
time had any material indirect interest in any material asset used in or
otherwise relating to the business of Conduct or Subsidiary; (b) no Related
Party is, or has at any time been, indebted to Conduct or Subsidiary; (c) no
Related Party has entered into, or has had any material financial interest in,
any material Contract, transaction or business

                                       23
<PAGE>

dealing involving Conduct or Subsidiary. For purposes of this Section 2.19, each
of the following shall be deemed to be a "Related Party": (i) each of the
Conduct Shareholders; (ii) each individual who is, or who has at any time been
an officer or director of Conduct or Subsidiary; (iii) each individual who is,
or who at any time been a member of the immediate family of any of the
individuals referred to in clauses "(i)" and "(ii)" above; (iv) any trust or
other Entity (other than Conduct) in which any one of the individuals referred
to in clauses "(i)", "(ii)" and "(iii)" above holds (or in which more than one
of such individuals collectively hold), beneficially or otherwise, a material
voting, proprietary or equity interest; and (v) as defined in Section 96A of the
Israeli Companies Ordinance-1983.

    2.20  Legal Proceedings; Orders.

          (a)  Except as set forth in Part 2.20(a) of the Disclosure Schedule,
there is no pending Legal Proceeding, and (to the Knowledge of Conduct and
Subsidiary ) no Person has threatened to commence any Legal Proceeding: (i) that
involves Conduct, Subsidiary or any of the assets owned or used by Conduct or
Subsidiary; or (ii) that challenges, or that may have the effect of preventing,
delaying, making illegal or otherwise interfering with, the transactions
contemplated by this Agreement. To the Knowledge of Conduct and Subsidiary
except as set forth in Part 2.20(a) of the Disclosure Schedule, no material
event has occurred, and no claim, dispute or other condition or circumstance
exists, that will, or that could reasonably be expected to, give rise to or
serve as a basis for the commencement of any such material Legal Proceeding.

          (b)  Except as set forth in Part 2.20(b) of the Disclosure Schedule,
no material Legal Proceeding has ever been commenced by, and no material Legal
Proceeding has ever been pending against, Conduct or Subsidiary.

          (c)  There is no order, writ, injunction, judgment or decree to which
Conduct or Subsidiary, or any of the assets owned or used by Conduct or
Subsidiary, is subject. To the Knowledge of Conduct and Subsidiary, none of the
Conduct Principal Shareholders is subject to any order, writ, injunction,
judgment or decree that relates to Conduct's business or to any of the assets
owned or used by Conduct or Subsidiary. To the Knowledge of Conduct and
Subsidiary, no officer or other employee of Conduct or Subsidiary is subject to
any order, writ, injunction, judgment or decree that prohibits such officer or
other employee from engaging in or continuing any conduct, activity or practice
relating to Conduct's business.

    2.21  Authority; Binding Nature of Agreement.  Conduct or Subsidiary each
have the absolute and unrestricted right, power and authority to enter into and
to perform its obligations under this Agreement and under each other agreement,
document or instrument referred to in or contemplated by this Agreement to which
Conduct or Subsidiary is or will be a party; and the execution, delivery and
performance by Conduct and Subsidiary of this Agreement and of each such other
agreement, document and instrument have been duly authorized by all necessary
action on the part of Conduct, Subsidiary and each of their boards of directors.
This Agreement and each other agreement, document and instrument referred to in
or contemplated by this Agreement to which Conduct or Subsidiary is a party
constitutes, assuming the due authorization, execution and delivery hereof by
Mercury and subject to the filings and approvals specified in Section 7 hereof,
the legal, valid and binding obligation of Conduct or Subsidiary, as

                                       24
<PAGE>

applicable, enforceable against Conduct or Subsidiary, as applicable, in
accordance with its terms, subject to (i) laws of general application relating
to bankruptcy, insolvency and the relief of debtors, and (ii) rules of law
governing specific performance, injunctive relief and other equitable remedies.

    2.22  Non-Contravention; Consents.  Except as set forth in Part 2.22 of the
Disclosure Schedule and except for Breaches which could not reasonably be
expected to have a Material Adverse Effect on Conduct or Subsidiary, neither (1)
the execution, delivery or performance of this Agreement or any other agreement,
document or instrument referred to in or contemplated by this Agreement, nor (2)
the consummation of the transactions contemplated by this Agreement or any such
other agreement, document or instrument, will directly or indirectly (with or
without notice or lapse of time):

          (a)  contravene, conflict with or result in a violation of (i) any of
the provisions of Conduct's articles of association or (ii) Subsidiary's
articles of incorporation or bylaws, or (ii) any resolution adopted by Conduct's
or Subsidiary's shareholders or Conduct's or Subsidiary's board of directors;

          (b)  contravene, conflict with or result in a violation of, or give
any Governmental Body or other Person the right to challenge any of the
transactions contemplated by this Agreement or to exercise any remedy or obtain
any relief under, any Legal Requirement or any order, writ, injunction, judgment
or decree to which Conduct or Subsidiary, or any of the assets owned or used by
Conduct or Subsidiary, is subject;

          (c)  contravene, conflict with or result in a violation of any of the
terms or requirements of, or give any Governmental Body the right to revoke,
withdraw, suspend, cancel, terminate or modify, any Governmental Authorization
that is held by Conduct or Subsidiary or that otherwise relates to Conduct's
business or to any of the assets owned or used by Conduct or Subsidiary;

          (d)  contravene, conflict with or result in a material violation or
breach of, or result in a material default under, any provision of any material
Contract, or give any Person the right to (i) declare a default or exercise any
remedy under any Contract, (ii) accelerate the maturity or performance of any
Contract, or (iii) cancel, terminate or modify any Contract; or

          (e)  result in the imposition or creation of any lien or other
Encumbrance upon or with respect to any asset owned or used by Conduct or
Subsidiary (except for minor liens that will not, in any case or in the
aggregate, materially detract from the value of the assets subject thereto or
materially impair the operations of Conduct or Subsidiary).

Neither Conduct nor Subsidiary is, nor will be, required to make any filing with
or give any notice to, or to obtain any Consent from, any Person in connection
with (x) the execution, delivery or performance of this Agreement or any other
agreement, document or instrument referred to in or contemplated by this
Agreement, or (y) the consummation of the transactions contemplated by this
Agreement or contemplated by any other agreement, document or instrument
referred to in or contemplated by this Agreement except for (A) filings with the
Israel

                                       25
<PAGE>

Investment Center of the Israeli Ministry of Trade & Industry, (B) filings with
the Chief Scientist of the Israeli Ministry of Trade & Industry, (C) the
approval of the General Director of the Antitrust Authority in Israel, (D)
approval of Israeli Income Tax Authorities as specified in Section 6.8 below,
and (E) such other consents, approvals, orders, authorizations, registrations,
declarations and filings, the failure of which to be obtained or made would not
have, individually or in the aggregate, a Material Adverse Effect on Conduct or
Subsidiary.

    2.23  Approved Enterprise.  Except as set forth in Part 2.23, Conduct has
complied in all material respects with the terms and conditions as specified in
the letter of approval dated December 29, 1996 and September 8, 1999, from the
Israeli Investment Center of the Ministry of Industry and Trade for an
investment program and the terms of the Encouragement of Capital Investments
law-1959, issued to it.

    2.24  Chief Scientist.  Except as set forth in Part 2.24 of the Disclosure
Schedule, Conduct has complied in all material respects with the  terms and
conditions as specified in the letter of approval dated March 19, 1997, from the
Chief Scientist of the Israeli Ministry of Industry and Trade and the terms of
the Encouragement of Industrial Research and Development Law - 1984.

    2.25  No Brokers.  Except as set forth in Part 2.25, none of Conduct nor
Subsidiary has agreed or become obligated to pay to any Person, or has taken any
action that might result in any Person claiming to be entitled to receive, any
brokerage commission, finder's fee or similar commission or fee in connection
with any of the transactions contemplated by this Agreement.

    2.26  Full Disclosure.  This Agreement (including the Disclosure Schedule)
does not  contain any representation, warranty or information that is false or
misleading with respect to any material fact.

Section 3.  Representations and Warranties of Conduct Shareholders

     The Conduct Shareholders each, severally and not jointly, represent and
warrant to Mercury that on the date hereof and as of the Closing, as though made
at the Closing, as follows:

    3.1   Ownership of Conduct Capital Shares. Such Conduct Shareholder is the
sole record and beneficial owner of the Conduct Capital Shares designated as
being owned by the Conduct Shareholder opposite his, her or its name in Exhibit
                                                                        -------
A to this Agreement.  Such Conduct Capital Shares are not subject to any Liens
- -
or to any rights of first refusal of any kind, and such Conduct Shareholder has
not granted any rights to purchase such Conduct Capital Shares to any other
person or entity.  Such Conduct Shareholder has the sole right to transfer such
Conduct Capital Shares to Mercury.  Such Conduct Capital Shares constitute all
of the Conduct Capital Shares owned, beneficially or of record, by such Conduct
Shareholder. and such Conduct Shareholder has no options, warrants or other
rights to acquire Conduct Capital Shares.  At the Closing, in exchange for the
Mercury Stock issued pursuant to Sections 1.1 and 1.5 hereof, Mercury will
receive good title to such Conduct Capital Shares, subject to no Liens retained,
granted or permitted by such Conduct Shareholder or Conduct.  Such Conduct
Shareholder hereby waivers its Right of First Refusal and Right of Co-Sale with
respect to the shares held by

                                       26
<PAGE>

other Conduct Shareholders as set forth in the Conduct Articles of Association
as currently in effect.

    3.2  Tax Matters.  Such Conduct Shareholder has had an opportunity to review
with his own tax advisors the tax consequences to the Conduct Shareholder of the
transactions contemplated by this Agreement.  Such Conduct Shareholder
understands that he must rely solely on his advisors and not on any statements
or representations by Mercury, Conduct, Subsidiary or any of their agents.  Such
Conduct Shareholder understands that he (and not Mercury, Conduct, or
Subsidiary) shall be responsible for his, her or its own tax liability that may
arise as a result of the transactions contemplated by this Agreement.

    3.3  Authority.  Such Conduct Shareholder has all requisite power and
authority to enter into this Agreement and to consummate the transactions
contemplated hereby.  This Agreement has been duly executed and delivered by
such Conduct Shareholder, and, assuming the due authorization, execution and
delivery by the other parties hereto, constitutes the valid and binding
obligation of such Conduct Shareholder, enforceable in accordance with its
terms, except as such enforceability may be limited by principles of public
policy and subject to the laws of general application relating to bankruptcy,
insolvency and the relief of debtors and to rules of law governing specific
performance, injunctive relief or other equitable remedies.

    3.4  No Conflict.  The execution and delivery by such Conduct Shareholder of
this Agreement and the consummation of the transactions contemplated hereby will
not conflict with any material mortgage, indenture, lease, contract or other
agreement or instrument, permit, concession, franchise or license to which such
Conduct Shareholder or any of his, her or its properties or assets is subject,
or any judgment, order, decree, statute, law, ordinance, rule or regulation
applicable to such Conduct Shareholder or his, her or its properties or assets.

    3.5  Exemption from Registration.  Such Conduct Shareholder is aware (i)
that the Mercury Stock to be issued to Conduct Shareholder in the transactions
contemplated by this Agreement will not be registered immediately and will not
be issued pursuant to a registration statement under the Securities Act, but
will instead be issued in reliance on the exemption from registration set forth
in Section 4(2) of the Act and in Regulation D under the Act, and (ii) that
neither the transactions contemplated by this Agreement nor the issuance of such
Mercury Stock has been approved or reviewed by the SEC or by any other
governmental agency.

    3.6  No Immediate Resale.  Such Conduct Shareholder is aware that, because
the Mercury Stock to be issued in the transactions contemplated by this
Agreement will not be registered immediately under the Act, such Mercury Stock
cannot be resold unless such Mercury Stock is registered under the Act or unless
an exemption from registration is available. Conduct Shareholder is also aware
that while Mercury has agreed to file a registration statement promptly after
the Closing with respect to the Mercury Stock to be issued to Conduct
Shareholder in the transactions contemplated by this Agreement pursuant to the
terms of a Registration Rights Agreement among Mercury and the Conduct
Shareholders, there may be times that such registration statement would be
unavailable for use by Conduct Shareholder to sell his or her shares. If the
registration statement is unavailable then the provisions of Rule 144 under the
Act will permit resale of the Mercury Stock to be issued to Conduct Shareholder
in the transactions

                                       27
<PAGE>

contemplated by this Agreement only under limited circumstances, and such
Mercury Stock must be held by Conduct Shareholder for at least one year before
it can be sold pursuant to Rule 144.

    3.7  Investment Intent.  The Mercury Stock to be issued to Conduct
Shareholder in the transactions contemplated by this Agreement will be acquired
by Conduct Shareholder for investment and for his own account, and not with a
view to, or for resale in connection with, any unregistered distribution
thereof.

    3.8  Adequate Investigation.  Conduct Shareholder has received, reviewed and
considered all the information Conduct Shareholder considers necessary to enable
Conduct Shareholder to make an informed decision to invest in Mercury Stock,
including the Mercury SEC Documents (defined below).

    3.9  Sophisticated Investor.  Conduct Shareholder (either by himself or in
conjunction with his representative) is knowledgeable, sophisticated and
experienced in making, and is qualified to make, decisions with respect to
investments in securities presenting investment decisions like that involved in
Conduct Shareholder's contemplated investment in the Mercury Stock to be issued
in the transactions contemplated by this Agreement.  Conduct Shareholder
understands and has fully considered the risks of acquiring and owning Mercury
Stock and further understands that: (i) an investment in Mercury Stock is a
speculative investment which involves a high degree of risk and is suitable only
for an investor who is able to bear the economic consequences of losing his or
her entire investment; and (ii) there are substantial restrictions on the
transferability of the Mercury Stock to be issued in the transactions
contemplated by this Agreement, and, accordingly, it may not be possible for
Conduct Shareholder to liquidate his investment in such Mercury Stock (in whole
or in part) in the case of emergency.  Conduct Shareholder is able: (1) to hold
the Mercury Stock that he is to receive in the transactions contemplated by this
Agreement for a substantial period of time; and (2) to afford a complete loss of
his investment in such Mercury Stock.

    3.10  Legends; Stop Transfer Orders.  Conduct Shareholder understands that
stop transfer instructions will be given to Mercury's transfer agent with
respect to the Mercury Stock to be issued to Conduct Shareholder in the
transactions contemplated by this Agreement, and that there will be placed on
the certificate or certificates representing such Mercury Stock a legend
identical or similar in effect to the following legend (together with any other
legend or legends required by applicable state securities laws or otherwise):

          "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
          UNDER THE SECURITIES ACT OF 1933 (THE "ACT") AND MAY NOT BE OFFERED,
          SOLD OR OTHERWISE TRANSFERRED, ASSIGNED, PLEDGED OR HYPOTHECATED
          UNLESS REGISTERED UNDER THE ACT OR UNLESS AN EXEMPTION FROM THE
          REGISTRATION REQUIREMENTS OF THE ACT IS AVAILABLE."

                                       28
<PAGE>

Section 4.  Representations and Warranties of Mercury Mercury represents and
    warrants to Conduct, Subsidiary and the Conduct Shareholders as follows:

    4.1   Corporate Status.  Mercury is a corporation duly organized, validly
existing and in good standing under, the laws of the State of Delaware.

    4.2   SEC Filings; Financial Statements.

          (a)  Mercury has filed all required reports, schedules, forms,
statements and other documents with the SEC since January 1, 1995 (the "Mercury
SEC Documents"). Mercury has delivered or otherwise made available to the
Conduct Shareholders accurate and complete copies (excluding copies of exhibits)
of each report, registration statement (on a form other than Form S-8) and
definitive proxy statement filed by Mercury with the SEC between January 1, 1999
and the date of this Agreement. As of the time it was filed with the SEC (or, if
amended or superseded by a filing prior to the date of this Agreement, then on
the date of such filing): (i) each of the Mercury SEC Documents complied in all
material respects with the applicable requirements of the Securities Act or the
Exchange Act (as the case may be); and (ii) none of the Mercury SEC Documents
contained any untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading.

          (b)  The consolidated financial statements contained in the Mercury
SEC Documents: (i) complied as to form in all material respects with the
published rules and regulations of the SEC applicable thereto; (ii) were
prepared in accordance with generally accepted accounting principles applied on
a consistent basis throughout the periods covered, except as may be indicated in
the notes to such financial statements and (in the case of unaudited statements)
as permitted by Form 10-Q of the SEC, and except that unaudited financial
statements may not contain footnotes and are subject to normal and recurring
year-end audit adjustments (which will not, individually or in the aggregate, be
material in magnitude); and (iii) fairly present the consolidated financial
position of Mercury and its subsidiaries as of the respective dates thereof and
the consolidated results of operations of Mercury and its subsidiaries for the
periods covered thereby.

    4.3   Authority; Binding Nature of Agreement.  Mercury has the absolute and
unrestricted right, power and authority to perform its obligations under this
Agreement and under each other agreement, document or instrument referred to in
or contemplated by this Agreement to which Mercury is or will be a party; and
the execution, delivery and performance by Mercury of this Agreement and under
each other agreement, document or instrument referred to in or contemplated by
this Agreement to which Mercury is or will be a party has been duly authorized
by all necessary action on the part of Mercury and its board of directors. This
Agreement and each other agreement, document or instrument referred to in or
contemplated by this Agreement to which Mercury is or will be a party
constitutes the legal, valid and binding obligation of Mercury, enforceable
against Mercury in accordance with its terms, subject to (i) laws of general
application relating to bankruptcy, insolvency and the relief of debtors, and
(ii) rules of law governing specific performance, injunctive relief and other
equitable remedies.

                                       29
<PAGE>

    4.4   Consents and Approvals; No Violations.  There is no requirement
applicable to Mercury to make any filing with, or to obtain any permit,
authorization, consent or approval of any Governmental Body as a condition to
the execution, delivery or performance by Mercury of this Agreement or any other
agreement, document or instrument referred to in or contemplated by this
Agreement, or the lawful consummation by Mercury of the transactions
contemplated by this Agreement, except for (A) the approval of the General
Director of the Antitrust Authority in Israel, (B) filings with the Israel
Investment Center of the Israeli Ministry of Trade & Industry, (C) filings with
the Chief Scientist of the Israeli Ministry of Trade & Industry, (D) the
approval of Israeli Income Tax Authorities set forth in Section 6.8 below, and
(E) such other consents, approvals, orders, authorizations, registrations,
declarations and filings, the failure of which to be obtained or made would not
have, individually or in the aggregate, a Material Adverse Effect on Mercury.
Neither the execution, delivery or performance of this Agreement by Mercury or
any other agreement, document or instrument referred to in or contemplated by
this Agreement nor the consummation by Mercury of the transactions contemplated
by this Agreement or any such other agreement, document or instrument will
directly or indirectly (with or without notice or lapse of time) (i) contravene,
conflict with or result in any breach of any provision of the Certificate of
Incorporation or Bylaws of Mercury or any resolution adopted by Mercury's
shareholders or board of directors, (ii) contravene, conflict with or result in
a material breach or default (or give rise to any right of termination,
cancellation or acceleration) under any of the terms, conditions or provisions
of any material note, bond, mortgage, indenture, license agreement, lease or
other material contract, instrument or obligation to which Mercury is a party or
by which any of its assets may be bound, (iii) contravene, conflict with or
result in violation in any material respects any statute, rule, regulation,
order, writ, injunction or decree or any other Government Authorization
applicable to Mercury or any of its material assets, where the consequences of
any and all such breaches, defaults and violations would, in the aggregate, have
a material and adverse effect on the business, operations or financial condition
of Mercury taken as a whole, (iv) contravene, conflict with or result in a
violation of, or give any Governmental Body or other Person the right to
challenge any of the transactions contemplated by this Agreement or to exercise
any remedy or obtain any relief under any Legal Requirement or any order, writ,
injunction, judgement or decree, or (v) result in the creation of any material
(individually or in the aggregate) liens, charges or Encumbrances on any of the
assets of Mercury. Mercury is aware that in order to obtain the approval of the
Chief Scientist of the Israeli Ministry of Trade & Industry, it will be required
to deliver to the Chief Scientist certain undertakings substantially in the form
attached as Exhibit J. As promptly as practicable after the date hereof, and in
            ---------
any event prior to the Closing, Mercury will sign and deliver such form to the
Chief Scientist.

    4.5   Valid Issuance.  Subject to Section 1.5(e), the Mercury Stock to be
issued in the transactions contemplated by this Agreement will, when issued in
accordance with the provisions of this Agreement, be validly issued, fully paid
and nonassessable, and free of Encumbrances, issued in compliance with all Legal
Requirements and free of restriction on transfer other than restrictions
pursuant to this Agreement and under applicable securities laws.

                                       30
<PAGE>

SECTION 5. Certain Covenants

     5.1   Access and Investigation.

           (a) During the period from the date of this Agreement through the
Closing Date (the "Pre-Closing Period"), Conduct shall: (a) provide Mercury and
Mercury's Representatives with reasonable access to Conduct's and Subsidiary's
personnel and assets and to all existing books, records, tax returns, work
papers and other documents and information relating to Conduct and Subsidiary;
and (b) provide Mercury and Mercury's Representatives with copies of such
existing books, records, tax returns, work papers and other documents and
information relating to Conduct and Subsidiary, and with such additional
financial, operating and other data and information regarding Conduct and
Subsidiary, as Mercury may reasonably request.

           (b) During the Pre-Closing Period, Mercury shall: (a) provide Conduct
and Conduct's Representatives with reasonable access to Mercury's personnel and
assets and to all existing books, records, tax returns, work papers and other
documents and information relating to Mercury; and (b) provide Conduct and
Conduct's Representatives with copies of such existing books, records, tax
returns, work papers and other documents and information relating to Mercury,
and with such additional financial, operating and other data and information
regarding Mercury, as Conduct may reasonably request.

           (c) All information provided during the Pre-Closing Period by Mercury
or Conduct to the other or the other's Representatives in connection with any
investigation hereunder or pursuant to the negotiation and execution of this
Agreement and the consummation of the transactions contemplated hereby shall be
subject to the provisions of the Mutual Nondisclosure Agreement between Mercury
and Conduct dated as of September 29, 1999 (the "Nondisclosure Agreement"),
which shall remain in full force and effect. Except for information set forth in
the Disclosure Schedule or the attachments thereto, no information obtained in
any investigation shall effect or be deemed to modify any representation or
warranty contained in this Agreement.

     5.2 Operation of the Business of Conduct. Without the prior written consent
of Mercury during the Pre-Closing Period, and except as otherwise contemplated
or permitted by this Agreement:

           (a) Conduct and Subsidiary shall each use its best effort to conduct
its business and operations in the ordinary course and in substantially the same
manner as such business and operations have been conducted prior to the date of
this Agreement, shall pay its debts and Taxes when due (subject to good faith
disputes, if any, over such debts and Taxes), and shall pay or perform its other
material obligations when due;

           (b) Conduct and Subsidiary shall each use commercially reasonable
efforts to (i) preserve intact its current business organization, (ii) keep
available the services of its current officers and employees and (iii) maintain
its relations and good will with all suppliers,

                                       31
<PAGE>

customers, landlords, creditors, employees and other Persons having business
relationships with Conduct;

           (c) Conduct and Subsidiary shall not declare, accrue, set aside or
pay any dividend or make any other distribution in respect of any capital
shares;

           (d) Conduct and Subsidiary shall not repurchase, redeem or otherwise
reacquire any capital shares or other securities other than pursuant to
Contracts in effect as of the date of this Agreement;

           (e) Except for Conduct Capital Shares issued upon the exercise of
options and warrants to purchase Conduct Capital Shares and any convertible
promissory notes outstanding on the date of this Agreement and upon the
conversion of Conduct Preferred Shares, neither Conduct nor Subsidiary shall
sell, issue or authorize the issuance of (i) any capital shares or other
security, (ii) any option or right to acquire any capital shares or other
security or (iii) any instrument convertible into or exchangeable for any
capital shares or other security;

           (f) Conduct shall not amend its articles of association or the
articles of incorporation or bylaws of Subsidiary, or effect or permit Conduct
or Subsidiary to become a party to any Acquisition Transaction,
recapitalization, reclassification of shares, stock split, reverse stock split
or similar transaction;

           (g) Conduct and Subsidiary shall not form any subsidiary or acquire
any equity interest or other interest in any other Entity;

           (h) Neither Conduct nor Subsidiary shall (i) establish, adopt or
amend any employee benefit plan, (ii) pay any bonus or make any profit-sharing
payment, severance (except as required by applicable law), cash incentive
payment or similar payment to, increase the amount of the wages, salary,
commissions, fringe benefits or other compensation or remuneration payable to,
any of its directors, officers or employees, or accelerate the vesting of any
Conduct Option or any Conduct Capital Shares subject to vesting or (iii) hire
any new employee or terminate any current employee;

           (i) Neither Conduct nor Subsidiary shall change any of its methods of
accounting or accounting practices;

           (j)  Neither Conduct nor Subsidiary shall make any Tax election;

           (k) Neither Conduct nor Subsidiary shall commence or settle any Legal
Proceeding, except as required by applicable law;

           (l) Neither Conduct nor Subsidiary shall enter into any license
agreement with respect to or otherwise transfer any rights to any Conduct
Proprietary Asset, or except in the ordinary course of business enter into any
license with respect to any Proprietary Asset of any other person or entity;

                                       32
<PAGE>

           (m) Neither Conduct nor Subsidiary shall enter into or amend any
Contract pursuant to which any other party is granted marketing, distribution or
similar rights of any type or scope with respect to any products or technology
of Conduct or Subsidiary;

           (n) Neither Conduct nor Subsidiary shall amend or otherwise modify or
violate the terms of any of Conduct Contracts set forth or described in the
Disclosure Schedule;

           (o) Neither Conduct nor Subsidiary shall incur any indebtedness for
borrowed money (other than indebtedness to trade creditors in the ordinary
course of business) or guarantee any such indebtedness or issue or sell any debt
securities or guarantee any debt securities of others;

           (p) Neither Conduct nor Subsidiary shall grant any loans to others
(other than advances of employee travel expenses in the ordinary course of
business consistent with past practices) or purchase debt securities of others
or amend the terms of any outstanding loan agreement;

           (q) Neither Conduct nor Subsidiary shall revalue any of its assets,
including without limitation writing down the value of inventory or writing off
notes;

           (r) Other than obligations existing as of the date of this Agreement,
neither Conduct nor Subsidiary shall pay, discharge or satisfy, in an amount in
excess of $25,000 (in any one case) or $100,000 (in the aggregate), any claim,
liability or obligation (absolute, accrued, asserted or unasserted, contingent
or otherwise);

           (s) No Conduct Shareholder shall transfer any Conduct Capital Shares
to any other Person; and

           (t) Neither Conduct nor Subsidiary nor any Conduct Shareholder shall
agree or commit to take any of the actions described in clauses "(c)" through
"(s)" above.

     5.3  Notification; Updates to Disclosure Schedule.

           (a) During the Pre-Closing Period, Conduct shall promptly notify
Mercury in writing of: (i) the discovery by Conduct or Subsidiary of any event,
condition, fact or circumstance that occurred or existed on or prior to the date
of this Agreement and that caused or constitutes an inaccuracy in or breach of
any representation or warranty made by Conduct or Subsidiary in this Agreement;
(ii) any event, condition, fact or circumstance that occurs, arises or exists
after the date of this Agreement and that would cause or constitute an
inaccuracy in or breach of any representation or warranty made by Conduct or
Subsidiary in this Agreement if (A) such representation or warranty had been
made as of the time of the occurrence, existence or discovery of such event,
condition, fact or circumstance or (B) such event, condition, fact or
circumstance had occurred, arisen or existed on or prior to the date of this
Agreement; (iii) any breach of any covenant or obligation of Conduct or
Subsidiary; and (iv) any event, condition, fact or circumstance that would make
the timely satisfaction of any of the conditions set forth in Section 7
impossible or unlikely. Notification in accordance with this Section 5.3(a)
shall not

                                       33
<PAGE>

affect Conduct's or Subsidiary's liability for breach of any such
representation, warranty or covenant under this Agreement.

           (b) During the Pre-Closing Period, Mercury shall promptly notify
Conduct in writing of: (i) the discovery by Mercury of any event, condition,
fact or circumstance that occurred or existed on or prior to the date of this
Agreement and that caused or constitutes an inaccuracy in or breach of any
representation or warranty made by Mercury in this Agreement; (ii) any event,
condition, fact or circumstance that occurs, arises or exists after the date of
this Agreement and that would cause or constitute an inaccuracy in or breach of
any representation or warranty made by Mercury in this Agreement if (A) such
representation or warranty had been made as of the time of the occurrence,
existence or discovery of such event, condition, fact or circumstance or (B)
such event, condition, fact or circumstance had occurred, arisen or existed on
or prior to the date of this Agreement; (iii) any breach of any covenant or
obligation of Mercury; and (iv) any event, condition, fact or circumstance that
would make the timely satisfaction of any of the conditions set forth in Section
8 impossible or unlikely. Notification in accordance with this Section 5.3(b)
shall not affect Mercury's liability for breach of any such representation,
warranty or covenant under this Agreement.

     5.4 No Negotiation. During the Pre-Closing Period, Conduct, Subsidiary and
the Conduct Shareholders shall not, and shall not permit any of their
Representatives to: (a) solicit any proposal or offer from any Person (other
than Mercury) for or relating to a possible Acquisition Transaction; or (b)
participate in any negotiations or enter into any agreement with, or provide any
information to or cooperate with, any Person (other than Mercury) relating to or
in connection with a possible Acquisition Transaction or any other transaction
which would alter the equity ownership of Conduct. In addition to the foregoing,
if Conduct receives prior to the Closing or the termination of this Agreement
any offer, proposal, or request relating to any of the above, Conduct shall
immediately notify Mercury thereof, including information as to the identity of
the offeror or the party making any such offer or proposal and the specific
terms of such offer or proposal, as the case may be, and such other information
related thereto as Mercury may reasonably request.

SECTION 6.  Additional Covenants of the Parties

     6.1 Filings and Consents. As promptly as practicable after the execution of
this Agreement, each party to this Agreement (a) shall make all filings, if any,
and give all notices, if any, required to be made and given by such party in
connection with the transactions contemplated by this Agreement and (b) shall
use all commercially reasonable efforts to obtain all Consents, if any, required
to be obtained (pursuant to any applicable Legal Requirement or Contract, or
otherwise) by such party in connection with the transactions contemplated by
this Agreement. Without limiting the foregoing, the parties shall promptly (i)
apply for and obtain the approvals of the Chief Scientist of the Israel,
Ministry of Trade and Industry, the Investment Center of the Israeli Ministry of
Trade and Industry, the Israeli Income Tax Authorities and the Israeli General
Director of the Antitrust Authority and (ii) provide notices of to holders of
Conduct Warrants.

                                       34
<PAGE>

     6.2 Reservation of Authorized Common Stock. Mercury shall also reserve a
sufficient number of Common Stock for issuance upon exercise of assumed options
of Conduct.

     6.3 Nasdaq Listing. As promptly as practicable after the date hereof, and
in any event prior to the Closing, Mercury shall use its best efforts to cause
the shares of the Mercury Stock to be issued pursuant to this Agreement to be
included on Nasdaq, subject to notice of official issuance thereof.

     6.4 Public Announcements . Except as required by applicable law, Mercury,
in its sole discretion, shall determine the form, timing and contents of
announcements and disclosures regarding the proposed transaction; provided,
                                                                  --------
however, prior to any such announcement, Mercury shall afford Conduct a
- -------
reasonable opportunity to review and comment on any such announcement or
disclosure.

     6.5 Best Efforts. During the Pre-Closing Period, Conduct, Subsidiary and
Mercury shall each use their best efforts to cause the conditions set forth in
Sections 7 and 8 to be satisfied before November 30, 1999.

     6.6  Employee Matters. Mercury and Conduct shall use commercially
reasonable efforts to recruit each key employee of Conduct or Subsidiary to
continue at-will employment with Conduct or Subsidiary after the Closing. Those
employees of Conduct or Subsidiary that continue to be employees of Mercury or
any of its affiliates, including Conduct or Subsidiary, following the Closing
shall upon the closing be eligible to participate in Mercury's health, vacation,
employee stock purchase, 401(k) and other plans, to the same extent as
comparably situated employees of Mercury and shall receive credit under
Mercury's benefit plans for time served as an employee of Conduct or Subsidiary.

     6.7 Additional Shareholders. Conduct shall notify Mercury of any exercises
or cancellations of options or warrants or conversions of convertible promissory
notes after the date of this Agreement until the Closing. Conduct shall use its
best efforts to cause each such Person who exercises a Conduct Option or Conduct
Warrant or converts a Conduct Convertible Promissory Note to become parties to
this Agreement (the "New Conduct Shareholders"). Any such New Conduct
Shareholders may be added as parties to this Agreement as set forth in Section
11.12 hereof. Any such New Conduct Shareholder who executes this Agreement and
shall be considered "Conduct Shareholders" for all purposes of this Agreement.

     6.8 Qualified Option Plan. As promptly as practicable after the date
hereof, and in any event prior to the Closing, Mercury shall use its best
efforts to obtain approval of the Israeli Income Tax Authorities for the
qualification of the options of Conduct assumed by Mercury pursuant to this
Agreement as Options granted pursuant to the provisions of section 102 of the
Israeli Income Tax Ordinance (new version) 1961 (the "Ordinance") and any
regulations, rules, orders or procedures promulgated thereunder, including the
Income Tax Rules (Tax benefits in Stock Issuance to Employees) 5349-1989 (the
"Rules").

                                       35
<PAGE>

     6.9 Indemnification of Directors and Officers . For a period of six years
from the Closing Date, Mercury shall, and shall cause Conduct to, fulfill and
honor in all respects all rights to indemnification existing in favor of the
directors and officers of Conduct, as provided in and subject to the terms of
Conduct's Articles of Association (as in effect as of the date of this
Agreement) and pursuant to any resolutions of Conduct or Subsidiary provided
that (a) the indemnified party has met any applicable standard of conduct to
qualify for such indemnification and (b) the basis of the claim against such
indemnified party does not otherwise constitute a breach of any of the
representations or warranties made by, or covenants to be performed by, Conduct
under this Agreement. This Section 6.9 shall survive the consummation of the
transactions contemplated hereby, is intended to benefit and may be enforced by
the directors and officers of Conduct, and shall be binding on all successors
and assigns of Mercury and Conduct.

     6.10 Private Placement. Mercury and Conduct shall each take all steps
necessary or desirable, utilize all commercially reasonable efforts and
cooperate with one another in every way to have the issuance of the shares of
Mercury Stock to be issued in the transactions contemplated by this Agreement
qualify for one of the exemptions from registration under the Securities Act
provided in Regulation D promulgated thereunder, including the retention of a
purchaser representative, if necessary.

     6.11  Registration Statements.

           (a) Mercury will prepare and file with the SEC a registration
statement on Form S-3 in accordance with the terms of the Registration Rights
Agreement.

           (b) Mercury will, within 10 days after the Closing, prepare and file
with the SEC a registration statement on Form S-8, in connection with the
issuance of the Mercury Stock with respect to the assumed Conduct Options and
maintain the effectiveness of such registration statement thereafter for so long
as any such options remain outstanding.

SECTION 7.  Conditions Precedent to Obligations of Mercury

     The obligations of Mercury to effect the transactions contemplated by this
Agreement are subject to the satisfaction (or waiver by Mercury), at or prior to
the Closing, of each of the following conditions:

     7.1 Accuracy of Representations. Each of the representations and warranties
made by Conduct, Subsidiary and the Conduct Shareholders in this Agreement shall
have been accurate as of the date of this Agreement. In addition, the
representations and warranties of Conduct, Subsidiary and the Conduct
Shareholders contained in this Agreement shall be true and correct in all
material respects on and as of the Closing except for changes contemplated by
this Agreement and except for those representations and warranties which address
matters only as of a particular date (which shall remain true and correct as of
such particular date), with the same force and effect as if made on and as of
the Closing except in such cases (other than the representations in Sections
2.2, 2.3, 2.21, 3.1 and 3.4) where the failure to be so true and correct would
not have a Material Adverse Effect on Conduct. Mercury shall have received a
certificate

                                       36
<PAGE>

with respect to the foregoing signed on behalf of Conduct and Subsidiary by two
of the respective executive officers or legally authorized signatories of each
of Conduct and Subsidiary.

     7.2 Performance of Covenants. All of the covenants and obligations that
Conduct is required to comply with or to perform at or prior to the Closing
shall have been complied with and performed in all material respects, except
where the failure to have performed or complied with such covenants and
obligations has not had a Material Adverse Effect on Conduct, or Mercury's
ownership and control thereof, after the Closing.

     7.3 Agreements and Documents. Mercury shall have received the following
agreements and documents, each of which shall be in full force and effect:

           (a) an Escrow Agreement in the form of Exhibit C hereto, executed by
                                                  ---------
the Shareholders' Agent on behalf of the Conduct Shareholders;

           (b) written resignations of all directors of Conduct and Subsidiary,
effective as of the Closing Date

           (c) a legal opinion of Tida Shamir & Co., Advocates substantially in
the form of Exhibit F-1 hereto
            -----------

           (d) a legal opinion of Wilson Sonsini Goodrich & Rosati, PC,
substantially in the form of Exhibit F-2 hereto;
                             -----------

           (e) evidence of the termination effective at or prior to the Closing
of the distribution agreement dated February 27, 1996 between Forval Creative
Inc. and Conduct;

           (f)  the other documents specified in Section 1.4 hereof; and

           (g) Each of Mercury and Conduct shall have received a letter from the
respective accounting firms set forth below, dated as of the Closing, as
follows:

                (i) A letter from Arthur Andersen LLP, independent accountants
for Conduct, and addressed to Conduct, reasonably satisfactory in form and
substance to Mercury and PricewaterhouseCoopers LLP, independent accountants for
Mercury, to the effect that, after reasonable investigation, the independent
accountants for Conduct are not aware of any fact concerning the transactions
contemplated by this Agreement or any of the shareholders or affiliates of
Conduct that could preclude Mercury from accounting for the transactions
contemplated by this Agreement as a "pooling of interests" in accordance with
generally accepted accounting principles, Accounting Principles Board Opinion
No. 16 and all published rules, regulations and policies of the SEC.

                (ii) A letter from PricewaterhouseCoopers LLP, independent
accountants for Mercury, and addressed to Mercury, reasonably satisfactory in
form and substance to Mercury, to the effect that, after reasonable
investigation, that PricewaterhouseCoopers LLP concurs with Mercury management's
conclusion that as of the Closing Date, no conditions exist that would preclude
Mercury from accounting for the

                                       37
<PAGE>

transactions contemplated by this Agreement as a "pooling of interests", in each
case in accordance with generally accepted accounting principles, Accounting
Principles Board Opinion No. 16 and all published rules, regulations and
policies of the SEC.

     7.4 Affiliate Pooling Agreements. Each of the persons or entities listed on
Schedule 7.4 attached to this Agreement shall have executed and delivered an
Affiliate Pooling Agreement with Mercury in the form of Exhibits G-1 or G-2
                                                        ------------     --
attached hereto (collectively the "Affiliate Pooling Agreements"), regarding
compliance with requirements for accounting treatment of the transactions
contemplated by this Agreement as a pooling of interests.

     7.5 Consents. All Consents required to be obtained (pursuant to any
applicable Legal Requirement or Contract, or otherwise) in connection with the
transactions contemplated by this Agreement have been obtained, including the
approvals of the Israeli General Director of Antitrust Authority, the Chief
Scientist of the Israeli Ministry of Trade and Industry, the Investment Center
of the Israeli Ministry of Trade and Industry and of the Israeli Income Tax
Authorities for the qualification of the options of Conduct assumed by Mercury
pursuant to this Agreement as Options granted pursuant to the provisions of
section 102 of the Israeli Income Tax Ordinance (new version) 1961 (the
"Ordinance") and any regulations, rules, orders or procedures promulgated
thereunder, including the Income Tax Rules (Tax benefits in Stock Issuance to
Employees) 5349-1989 (the "Rules").

     7.6 No Restraints. No temporary restraining order, preliminary or permanent
injunction or other order preventing the consummation of the transactions
contemplated by this Agreement shall have been issued by any court of competent
jurisdiction and remain in effect, and there shall not be any Legal Requirement
enacted or deemed applicable to the transactions contemplated by this Agreement
that makes consummation of the transactions contemplated by this Agreement
illegal.

     7.7 Conduct Warrants. If the Closing occurs less than 20 days after the
notice required under the Conduct Warrants is delivered to the holders of
Conduct Warrants, the holders of Conduct Warrants shall have delivered written
waivers of such notice to Mercury.

     7.8 Additional Shareholders. Conduct shall have caused each New Conduct
Shareholder to become a party to this Agreement.

SECTION  8.  Conditions Precedent to Obligations of Conduct

          The obligations of Conduct to effect the transactions contemplated by
this Agreement are subject to the satisfaction (or waiver), at or prior to the
Closing, of the following conditions:

     8.1 Accuracy of Representations. Each of the representations and warranties
made by Mercury in this Agreement shall have been accurate as of the date of
this Agreement. In addition, the representations and warranties of Mercury
contained in this Agreement shall be true and correct in all material respects
on and as of the Closing except for changes contemplated by this Agreement and
except for those representations and warranties which address matters only as of
a particular date (which shall remain true and correct as of such particular
date), with the

                                       38
<PAGE>

same force and effect as if made on and as of the Closing except in such cases
where the failure to be so true and correct would not have a Material Adverse
Effect on Mercury. Conduct shall have received a certificate with respect to the
foregoing signed on behalf of Mercury by the Chief Financial Officer of Mercury.

     8.2  Performance of Covenants.  All of the covenants and obligations that
Mercury are required to comply with or to perform at or prior to the Closing
shall have been complied with and performed in all material respects, except
where the failure to have performed or complied with such covenants and
obligations has not had a Material Adverse Effect on Mercury.

     8.3  Agreements and Documents.  Conduct shall have received the following
documents.

           (a) a Registration Rights Agreement in the form of Exhibit H hereto,
                                                              ---------
executed by Mercury;

           (b) an Escrow Agreement in the form of Exhibit C hereto, executed by
                                                  ---------
Mercury;

           (c) A legal opinion of General Counsel Associates LLP substantially
in the form of Exhibit I hereto.

           (d) An undertaking towards the Chief Scientist in the form of Exhibit
J hereto, executed by Mercury.

     8.4 Consents. All Consents required to be obtained (pursuant to any
applicable Legal Requirement or Contract, or otherwise) in connection with the
transactions contemplated by this Agreement have been obtained, including the
approvals of the Israeli Antitrust Authority, the Chief Scientist of the Israeli
Ministry of Trade and Industry, the Investment Center of the Israeli Ministry of
Trade and Industry.

     8.5  Nasdaq Listing.  The shares of Mercury Stock to be issued in the
transactions contemplated by this Agreement shall have been approved for listing
(subject to notice of issuance) on the Nasdaq National Market.

     8.6 No Restraints. No temporary restraining order, preliminary or permanent
injunction or other order preventing the consummation of the transactions
contemplated by this Agreement shall have been issued by any court of competent
jurisdiction and remain in effect, and there shall not be any Legal Requirement
enacted or deemed applicable to the transactions contemplated by this Agreement
that makes consummation of the transactions contemplated by this Agreement
illegal.

SECTION 9.  TERMINATION

                                       39
<PAGE>

9.1  Termination Events.  This Agreement may be terminated prior to the
     Closing:

   (a)  by Mercury if (i) any representation or warranty of Conduct or
Subsidiary contained in Section 2 was incorrect in any material respect when
made such that the condition set forth in Section 7.1 would not be satisfied;
(ii) any representation or warranty of the Conduct Shareholders contained in
Section 3 was incorrect in any material respect when made such that the
condition set forth in Section 7.1 would not be satisfied; or (iii) if (x) any
of Conduct's covenants contained in this Agreement shall have been breached in
any material respect; (y) such breach has not been cured within 15 days after
written notice thereof is delivered by Mercury to Conduct; provided, however,
that no cure period shall apply if such breach is not capable of cure; and (z)
as a result of such breach, the condition set forth in Section 7.2 would not be
satisfied;

   (b)  by Conduct if any representation or warranty of Mercury contained in
Section 4 was incorrect in any material respect when made such that the
condition set forth in Section 8.1 would not be satisfied, or if: (i) any of
Mercury's covenants contained in this Agreement shall have been breached in
any material respect; (ii) such breach has not been cured within 15 days after
written notice thereof is delivered by Conduct to Mercury; provided, however,
that no cure period shall apply if such breach is not capable of cure; and (iii)
as a result of such breach, the condition set forth in Section 8.2 would not be
satisfied;

   (c)  by Mercury if the Closing has not taken place on or before March 1, 2000
(other than as a result of any failure on the part of Mercury to comply with or
perform any covenant or obligation of Mercury set forth in this Agreement or in
any other agreement or instrument delivered to Conduct);

   (d)  by Conduct if the Closing has not taken place on or before March 1, 2000
(other than as a result of the failure on the part of Conduct to comply with or
perform any covenant or obligation set forth in this Agreement or in any other
agreement or instrument delivered to Mercury);

   (e)  by the mutual written consent of Mercury and Conduct.

   (f)  by Conduct if Mercury common stock trades on the Nasdaq National Market
at an amount lower than $36 per share (appropriately adjusted for stock splits,
recapitalizations and the like) at any time prior to the Closing.

   9.2  Termination Procedures.  If Mercury wishes to terminate this Agreement
pursuant to Section 9.1(a) or Section 9.1(c), Mercury shall deliver to Conduct a
written notice stating that Mercury is terminating this Agreement and setting
forth a brief description of the basis on which Mercury is terminating this
Agreement.  If Conduct wishes to terminate this Agreement pursuant to Section
9.1(b) or Section 9.1(d) or Section 9.1(f), Conduct shall deliver to Mercury a
notice, in writing, stating that Conduct is terminating this Agreement and
setting forth a brief description of the basis on which it is terminating this
Agreement.

   9.3  Effect of Termination.  If this Agreement is terminated pursuant to
Section 9.1, all further obligations of the parties under this Agreement shall
terminate; provided, however, that: (a) none of the parties shall be relieved of
any obligation or liability arising from any prior

                                       40
<PAGE>

willful breach by such party of any provision of this Agreement; and (b) the
parties shall, in all events, remain bound by and continue to be subject to the
provisions set forth in Sections 6.2, 11 and this Section 9.3 and in the
Nondisclosure Agreement.

Section 10.  Indemnification, Etc.

   10.1  Survival of Representations, Etc.    The representations and warranties
made by Conduct, Subsidiary, Conduct Shareholders and Mercury in this Agreement
shall survive the Closing and shall expire upon the earlier of (i) one year from
the date of the Closing or (ii) the issuance by Mercury's regularly employed
independent public accountants of audited financial statements and accompanying
audit report covering thirty days of combined operations of Mercury and Conduct
ending after the Closing Date (the "Termination Date").  Upon the expiration of
the representations and warranties of Conduct, Subsidiary, Conduct Shareholders
and Mercury, all liability of the parties with respect to any breach of such
representation or warranties shall thereupon be extinguished except to the
extent a claim for breach shall have been made prior to such expiration.  The
pre-closing covenants of Conduct and Mercury contained in this Agreement shall
terminate as of the Closing.

   10.2  Indemnification.

   (a)  Indemnification by Conduct Shareholders. From and after the Closing Date
(but subject to Section 10.1), the Conduct Shareholders who shall have received
Mercury Stock pursuant to Section 1.5 (the "Shareholder Indemnitors"), shall
(pro rata in accordance with their interest in the Escrow Fund) hold harmless
and indemnify each of the Indemnitees from and against, and shall compensate and
reimburse each of the Indemnitees for, any Damages which are suffered or
incurred by any of the Indemnitees or to which any of the Indemnitees may
otherwise become subject (regardless of whether or not such Damages relate to
any third-party claim) and which arise from or as a direct or indirect result
of, or are directly or indirectly connected with: (i) any inaccuracy in or
Breach of any representation or warranty made by Conduct, Subsidiary or Conduct
Shareholders in this Agreement or the Disclosure Schedule(ii) any breach of any
covenant or obligation of Conduct, Subsidiary or the Conduct Shareholders; or
(iii) any Legal Proceeding relating to any Breach referred to in clause "(i)" or
"(ii)" of this sentence.

   (b)  Indemnification by Mercury. From and after the Closing Date (but subject
to Section 10.1), Mercury shall hold harmless and indemnify each Conduct
Shareholder from and against, and shall compensate and reimburse each of the
Conduct Shareholders for, any Damages which are suffered or incurred by any of
the Conduct Shareholders or to which any of the Conduct Shareholders may
otherwise become subject (regardless of whether or not such Damages relate to
any third-party claim) and which arise from or as a direct or indirect result
of, or are directly or indirectly connected with: (i) any inaccuracy in or
Breach of any representation or warranty made by Mercury in this Agreement ;
(ii) any breach of any covenant or obligation of Mercury; or (iii) any Legal
Proceeding relating to any Breach referred to in clause "(i)" or "(ii)" of this
sentence. Notwithstanding anything to the contrary, Mercury shall be under no
obligation to deal directly with individual Conduct Shareholders in connection
with the indemnity provided to the Conduct Shareholders under this Section 10
but shall only be

                                       41
<PAGE>

obligated to respond to notices from, and to provide notices to, and otherwise
deal only with, the Shareholders' Agent, who shall have exclusive authority to
act for purposes of the indemnification provided by Mercury under this Section
10 on behalf of all of the Conduct Shareholders.

   (c)  Damages to Conduct. If Conduct or Subsidiary suffers or otherwise
becomes subject to any Damages, then (without limiting any of the rights of
Conduct as an Indemnitee) Mercury shall also be deemed, by virtue of its
ownership of the shares of Conduct, to have suffered Damages.

   (d)  Deductible.  The Shareholder Indemnitors shall not be required to make
any indemnification, compensation or reimbursement payment pursuant to Section
10.2(a) until such time as the total amount of all Damages that have been
directly incurred by Mercury as a result of a breach of this Agreement by
Conduct exceeds $50,000. (If the total amount of such Damages exceeds $50,000,
then Mercury shall be entitled to be indemnified only for the portion of such
Damages exceeding $50,000.) Mercury shall not be required to make any
indemnification, compensation or reimbursement payment pursuant to Section
10.2(b) until such time as the total amount of all Damages that have been
directly incurred by the Conduct Shareholders as a result of a breach of this
Agreement by Mercury exceeds $50,000. (If the total amount of such Damages
exceeds $50,000, then the Conduct Shareholders shall be entitled to be
indemnified against only for the portion of such Damages exceeding $50,000.)

   10.3  Exclusive Remedy; Limitations.    Absent fraud, willful
misrepresentation, or willful deceit, from and after the Closing, recourse of
the Indemnitees to the Escrow Amount in the Escrow Fund shall be the sole and
exclusive remedy of the Indemnitees for Damages relating to any claim relating
to this Agreement provided, however, that nothing in this Section 10 shall limit
an individual Conduct Shareholder's liability with respect to a Breach of a
representation or warranty made by such Conduct Shareholder in Section 3.1 of
this Agreement. Absent fraud, willful misrepresentation, or willful deceit, from
and after the Closing, the maximum liability of Mercury to the Conduct
Shareholders for Damages relating to any Breach of any representation, warranty,
covenant or agreement contained in this Agreement shall be limited to an amount
equal to the value of the number of shares placed in the Escrow Fund multiplied
by the closing sales price of a share of Mercury common stock price as reported
on the Nasdaq National Market on the Closing Date.

   10.4  No Contribution. Each Conduct Shareholder waives, acknowledges and
agrees that he shall not have and shall not exercise or assert (or attempt to
exercise or assert), any right of contribution, right of indemnity or other
similar right or remedy against Conduct or Subsidiary or any officer or director
or counsel of Conduct or Subsidiary in connection with any actual or alleged
inaccuracy in or other Breach of any representation, warranty, covenant or
obligation set forth in this Agreement.

   10.5  Defense of Third Party Claims against Indemnitees.  In the event of the
assertion or commencement by any Person of any claim or Legal Proceeding
(whether against Conduct or Subsidiary, against any other Indemnitee or against
any other Person) with respect to which any of the Conduct Shareholders may
become obligated to indemnify, hold harmless, pay,

                                       42
<PAGE>

compensate or reimburse any Indemnitee pursuant to this Section 10, (i) Mercury,
as soon as practicable after it receives written notice of any such claim or
Legal Proceeding, shall notify the Shareholders' Agent of such claim or Legal
Proceeding (it being understood that the failure to notify the Shareholders'
Agent shall not in any way limit the rights of the Indemnitees under this
Agreement except to the extent that such failure materially prejudices the
defenses available to the Shareholders' Agent), and (ii) Mercury shall have the
right, at its election, to assume the defense of such claim or Legal Proceeding;
provided, however, that notwithstanding the foregoing if the maximum exposure
(as reasonably determined by Mercury) to all Indemnitees in such claim or Legal
Proceeding, together with the maximum exposure (as reasonably determined by
Mercury) under all claims or Legal Proceedings that may then already be pending
involving exposure to the Indemnitees under this Section 10, does not exceed the
value of the shares placed in the Escrow Fund (with such shares being deemed to
have a per share value equal to Mercury Average Stock Price), or if Mercury does
not within a reasonable period of time assume the defense of such claim or Legal
Proceeding, then the Shareholders' Agent may assume the defense of such claim or
Legal Proceeding. If the Shareholders' Agent assumes the defense of any such
claim or Legal Proceeding:

   (a)  the Shareholders' Agent shall proceed to defend such claim or Legal
Proceeding in a diligent manner with counsel reasonably satisfactory to Mercury;

   (b)  Mercury shall make available to the Shareholders' Agent any non-
privileged documents and non-privileged materials in the possession of Mercury
that

   (c)  the Shareholders' Agent shall keep Mercury informed of all material
developments and events relating to such claim or Legal Proceeding;

   (d)  Mercury shall have the right to participate in the defense of such claim
or Legal Proceeding at its own expense;

   (e)  the Shareholders' Agent shall not settle, adjust or compromise such
claim or Legal Proceeding without the prior written consent of Mercury (which
consent shall not be unreasonably withheld); and

   (f)  Mercury may at any time assume the defense of such claim or Legal
Proceeding if (i) the Shareholders' Agent shall fail to comply with any of its
obligations under this Section 10.5 (including its obligation to defend any
claim or Legal Proceeding in a diligent manner), or (ii) Mercury, after
consultation with its counsel, reasonably determines that the control of the
defense by the Shareholders' Agent would give rise to a conflict of interest.

If Mercury proceeds with the defense of any such claim or Legal Proceeding on
its own:

     (i)  the Conduct Shareholders shall make available to Mercury any documents
and materials in the possession or control of any of the Conduct Shareholders
that may be necessary to the defense of such claim or Legal Proceeding;

                                       43
<PAGE>

     (ii) Mercury shall keep the Shareholders' Agent informed of all material
developments and events relating to such claim or Legal Proceeding; and

    (iii)  Mercury shall have the right to settle, adjust or compromise such
claim or Legal Proceeding with the consent of the Shareholders' Agent; provided,
however, that the Shareholders' Agent shall not unreasonably withhold such
consent.

   10.6  Defense of Third Party Claims against Conduct Shareholders.  In the
event of the assertion or commencement by any Person of any claim or Legal
Proceeding with respect to which Mercury may become obligated to indemnify, hold
harmless, pay, compensate or reimburse any Conduct Shareholder pursuant to this
Section 10, (i) the Shareholders' Agent, as soon as practicable after it
receives written notice of any such claim or Legal Proceeding, shall notify
Mercury of such claim or Legal Proceeding (it being understood that the failure
to notify Mercury shall not in any way limit the rights of the Conduct
Shareholders under this Agreement except to the extent such failure materially
prejudices the defenses available to Mercury), and (ii) the Shareholders' Agent
shall have the right, at its election, to assume the defense of such claim or
Legal Proceeding; provided, however, that notwithstanding the foregoing if the
maximum exposure (as reasonably determined by the Shareholders' Agent) to the
Conduct Shareholders in such claim or Legal Proceeding, together with the
maximum exposure (as reasonably determined by the Shareholders' Agent) under all
claims or Legal Proceedings that may then already be pending involving exposure
to the Conduct Shareholders under this Section 10, does not exceed the value of
the amount set forth in the second sentence of Section 10.3, or if the
Shareholders' Agent does not within a reasonable period of time assume the
defense of such claim or Legal Proceeding, then Mercury may assume the defense
of such claim or Legal Proceeding.  The parties shall thereafter proceed in the
manner provided in Section 10.5 with the roles of Mercury and the Shareholders'
Agent reversed.

   10.7  Exercise of Remedies by Indemnitees Other Than Mercury. No Indemnitee
(other than Mercury or any successor thereto or assign thereof) shall be
permitted to assert any indemnification claim or exercise any other remedy under
this Agreement unless Mercury (or any successor thereto or assign thereof) shall
have consented to the assertion of such indemnification claim or the exercise of
such other remedy.

Section 11.  Miscellaneous Provisions

   11.1  Shareholders' Agent. The Conduct Shareholders irrevocably appoint David
Barzilai as their agent in connection with the transactions contemplated by
Section 10 of this Agreement, the Registration Rights Agreement and the Escrow
Agreement (the "Shareholders' Agent"), and David Barzilai hereby accepts his
appointment as the Shareholders' Agent.  Mercury shall be entitled to deal with
the Shareholders' Agent on all matters relating to Section 10, the Registration
Rights Agreement and the Escrow Agreement, and shall be entitled to rely on any
document executed or purported to be executed on behalf of the Shareholder
Indemnitors by the Shareholders' Agent, and on any other action taken or
purported to be taken on behalf of the Shareholder Indemnitors by the
Shareholders' Agent, as fully binding upon such Shareholder

                                       44
<PAGE>

Indemnitor. If the Shareholders' Agent shall die, become disabled or otherwise
be unable to fulfill his responsibilities as agent of the Shareholder
Indemnitors, then the Shareholder Indemnitors shall, within ten days after such
death or disability, appoint a successor agent and, promptly thereafter, shall
notify Mercury of the identity of such successor. Any such successor shall
become the "Shareholders' Agent" for purposes of this Section 11.1. If for any
reason there is no Shareholders' Agent at any time, all references herein to the
Shareholders' Agent shall be deemed to refer to the Shareholder Indemnitors.

   11.2  Further Assurances.  Each party hereto shall execute and cause to be
delivered to each other party hereto such instruments and other documents, and
shall take such other actions, as such other party may reasonably request (prior
to, at or after the Closing) for the purpose of carrying out or evidencing any
of the transactions contemplated by this Agreement.

   11.3  Fees and Expenses.  Each party to this Agreement shall bear and pay all
fees, costs and expenses (including legal fees and accounting fees) that have
been incurred or that are incurred by such party in connection with the
transactions contemplated by this Agreement; provided, however, if the
transactions contemplated by this Agreement are consummated, all fees, costs and
expenses incurred by Conduct and the Conduct Shareholders in connection with the
transactions contemplated by this Agreement shall be paid by Mercury, it being
understood that if fees, costs and expenses incurred by Conduct and the Conduct
Shareholders shall exceed $250,000, then Mercury shall be entitled to be
indemnified from the Escrow Fund against only the portion of such fees, costs
and expenses exceeding $250,000.

   11.4  Attorneys' Fees.  If any action or proceeding relating to this
Agreement or the enforcement of any provision of this Agreement is brought
against any party hereto, the prevailing party shall be entitled to recover
reasonable attorneys' fees, costs and disbursements (in addition to any other
relief to which the prevailing party may be entitled).

   11.5  Notices.  Any notice or other communication required or permitted to be
delivered to any party under this Agreement shall be in writing and shall be
deemed properly delivered, given and received when delivered (by hand, by
registered mail, by courier or express delivery service or by facsimile) to the
address or facsimile telephone number set forth beneath the name of such party
below (or to such other address or facsimile telephone number as such party
shall have specified in a written notice given to the other parties hereto):

          if to Mercury:

               Mercury Interactive Corporation
               1325 Borregas Avenue
               Sunnyvale, California  94089
               Attention:  Sharlene Abrams
               Telephone No.: (408) 822-5247
               Facsimile: (408) 822-5507

                                       45
<PAGE>

               with a copy to:
               --------------

               General Counsel Associates LLP
               1891 Landings Drive
               Mountain View, CA 94043
               Attention:  Susan J. Skaer, Esq.
               Telephone:  (650) 428-3900
               Facsimile:  (650) 428-3901


          if to Conduct:

               Conduct, Ltd.
               c/o Conduct Software Technologies, Inc.
               2350 Mission College Blvd., Suite 705
               Santa Clara, CA 95054
               Attention: David Barzilai
               Telephone: 408-982-8200
               Facsimile:  408-982-8202

               with a copy to:
               --------------

               Wilson, Sonsini, Goodrich & Rosati, PC
               650 Page Mill Road
               Palo Alto, CA  94304-1050
               Attention: Neil Wolff, Esq.
                          Jon P. Layman, Esq.
               Telephone: (650) 493-9300
               Facsimile: (650) 493-6811

               And to:
               ------

               Tida Shamir & Co., Advocates
               3A Jabotinsky Street
               Ramat Gam 52520, Israel
               Attention:  Tida Shamir, Esq.
               Telephone: 972-3-613-7979
               Facsimile: 972-3-613-7969

                                       46
<PAGE>

          If to the Shareholders' Agent or any of the Shareholder Indemnitors:

               David Barzilai
               923 Kintyre Way
               Sunnyvale, CA  94087
               Telephone:  408-730-2567

   11.6  Headings.  The underlined headings contained in this Agreement are for
convenience of reference only, shall not be deemed to be a part of this
Agreement and shall not be referred to in connection with the construction or
interpretation of this Agreement.

   11.7  Counterparts.  This Agreement may be executed in several counterparts,
each of which shall constitute an original and all of which, when taken
together, shall constitute one agreement.

   11.8  Governing Law; Venue.  This Agreement shall be construed in accordance
with, and governed in all respects by, the internal laws of the State of
California (without giving effect to principles of conflicts of laws).  In any
action between the parties arising out of or relating to this Agreement or any
of the transactions contemplated by this Agreement:  (a) each of the parties
irrevocably and unconditionally consents and submits to the exclusive
jurisdiction and venue of the state and federal courts located in the County of
Santa Clara, State of California; (b) if any such action is commenced in a state
court, then, subject to applicable law, no party shall object to the removal of
such action to any federal court located in the Northern District of
California; (c) each of the parties irrevocably consents to service of process
by first class certified mail, return receipt requested, postage prepaid, to the
address at which such party is to receive notice in accordance with Section
11.5.

   11.9  Successors and Assigns.  This Agreement shall be binding upon each of
the parties hereto and each of their respective successors and assigns, if any.
This Agreement shall inure to the benefit of: Conduct; the Conduct Shareholders;
Mercury; and the respective successors and assigns, if any, of the foregoing.
No party may assign any of its rights, or delegate any of its obligations, under
this Agreement without the prior written consent of the other parties.

   11.10  Remedies Cumulative; Specific Performance.  The rights and remedies of
the parties hereto shall be cumulative (and not alternative).  The parties to
this Agreement agree that, in the event of any breach or threatened breach by
any party to this Agreement of any covenant, obligation or other provision set
forth in this Agreement for the benefit of any other party to this Agreement,
such other party shall be entitled (in addition to any other remedy that may be
available to it) to (a) a decree or order of specific performance or mandamus to
enforce the observance and performance of such covenant, obligation or other
provision and (b) an injunction restraining such breach or threatened breach.

   11.11  Waiver.  No failure on the part of any Person to exercise any power,
right, privilege or remedy under this Agreement, and no delay on the part of any
Person in exercising any power, right, privilege or remedy under this Agreement,
shall operate as a waiver of such

                                       47
<PAGE>

power, right, privilege or remedy; and no single or partial exercise of any such
power, right, privilege or remedy shall preclude any other or further exercise
thereof or of any other power, right, privilege or remedy. No Person shall be
deemed to have waived any claim arising out of this Agreement, or any power,
right, privilege or remedy under this Agreement, unless the waiver of such
claim, power, right, privilege or remedy is expressly set forth in a written
instrument duly executed and delivered on behalf of such Person; and any such
waiver shall not be applicable or have any effect except in the specific
instance in which it is given.

   11.12  Amendments.  This Agreement may not be amended, modified, altered or
supplemented other than by means of a written instrument duly executed and
delivered on behalf of all of the parties hereto; provided, however, that any
amendment to this Agreement which solely adds New Conduct Shareholders as
parties shall not require any approval by any of the parties and may be effected
by adding additional signature pages and additional Exhibit A pages hereto.

   11.13  Severability.  In the event that any provision of this Agreement, or
the application of any such provision to any Person or set of circumstances,
shall be determined to be invalid, unlawful, void or unenforceable to any
extent, the remainder of this Agreement, and the application of such provision
to Persons or circumstances other than those as to which it is determined to be
invalid, unlawful, void or unenforceable, shall not be impaired or otherwise
affected and shall continue to be valid and enforceable to the fullest extent
permitted by law.

   11.14  Parties in Interest.  Except for the provisions of Sections 1.7 and
6.9 (which are intended to benefit and are enforceable by the persons referred
to therein), none of the provisions of this Agreement is intended to provide any
rights or remedies to any Person other than the parties hereto, and their
respective successors and assigns, if any.

   11.15  Entire Agreement.  This Agreement and the other agreements referred to
herein set forth the entire understanding of the parties hereto relating to the
subject matter hereof and thereof and supersede all prior agreements and
understandings among or between any of the parties relating to the subject
matter hereof and thereof; provided, however, that the Nondisclosure Agreement
shall not be superseded by this Agreement and shall remain in effect in
accordance with its terms until the earlier of (a) the Closing Date or (b) the
date on which such Nondisclosure Agreement is terminated in accordance with its
terms.

11.16  Construction.

   (a)  For purposes of this Agreement, whenever the context requires: the
singular number shall include the plural, and vice versa; the masculine gender
shall include the feminine and neuter genders; the feminine gender shall include
the masculine and neuter genders; and the neuter gender shall include the
masculine and feminine genders.

   (b)  The parties hereto agree that any rule of construction to the effect
that ambiguities are to be resolved against the drafting party shall not be
applied in the construction or interpretation of this Agreement.

                                       48
<PAGE>

   (c)  As used in this Agreement, the words "include" and "including," and
variations thereof, shall not be deemed to be terms of limitation, but rather
shall be deemed to be followed by the words "without limitation."

   (d)  Except as otherwise indicated, all references in this Agreement to
"Sections", "Schedules" and "Exhibits" are intended to refer to Sections of this
Agreement and Schedules and Exhibits to this Agreement.

                                       49
<PAGE>

                                    EXHIBITS
<TABLE>

<S>         <C>
Exhibit A    -  Conduct Shareholders

Exhibit B    -  Certain definitions

Exhibit C    -  Form of Escrow Agreement

Exhibit D    -  Form of Amendment to Employment Agreements

Exhibit E    -  Conduct Disclosure Schedule

Exhibit F-1  -  Tida Shamir & Co., Ltd, Advocates Legal Opinion

Exhibit F-2  -  Wilson Sonsini Goodrich & Rosati, Professional Corporation
                Legal Opinion

Exhibit G1   -  Conduct Affiliate Pooling Agreement

Exhibit G2   -  Mercury Affiliate Pooling Agreement

Exhibit H    -  Registration Rights Agreement

Exhibit I    -  General Counsel Associates LLP Legal Opinion

Exhibit J    -  Undertaking for Chief Scientist
</TABLE>

                                       50
<PAGE>

     The parties hereto have caused this Agreement to be executed and delivered
as of November 24, 1999.
               --

                              MERCURY INTERACTIVE CORPORATION


                              /s/ Sharlene Abrans
                              -------------------------------
                              Name: Sharlene Abrans
                                   --------------------------
                              Title: CFO
                                    -------------------------


                              CONDUCT LTD.

                              -------------------------------
                              Name:__________________________
                              Title:_________________________


                              CONDUCT SHAREHOLDERS' AGENT

                              _______________________________
                              David Barzilai
<PAGE>

     The parties hereto have caused this Agreement to be executed and delivered
as of November   , 1999.

                            MERCURY INTERACTIVE CORPORATION

                            --------------------------------
                            Name:___________________________
                            Title:__________________________


                            CONDUCT LTD.

                            /s/ D. Barzilai
                            --------------------------------
                            Name:   D. Barzilai
                                 ---------------------------
                            Title:  Director
                                  --------------------------


                            CONDUCT LTD.

                            /s/ S. Azulai
                            --------------------------------
                            Name:   S. Azulai
                                 ---------------------------
                            Title:   Director
                                  --------------------------


                            CONDUCT SOFTWARE, TECHNOLOGIES, INC.

                            /s/ D. Barzilai
                            --------------------------------
                            Name:   D. Barzilai
                                 ---------------------------
                            Title:   President and CEO
                                  --------------------------


                            CONDUCT SOFTWARE, TECHNOLOGIES, INC.

                            /s/ S. Azulai
                            --------------------------------
                            Name:   S. Azulai
                                 ---------------------------
                            Title:   CTO
                                  --------------------------


                            CONDUCT SHAREHOLDERS' AGENT

                            /s/ D. Barzilai
                            --------------------------------
                            D. Barzilai
<PAGE>

                                 Conduct Ltd.                        Page 1 of 2
                (List of All Current Shareholders - Alphabetic)


Exhibit A
- ---------

<TABLE>
<CAPTION>

                                                                                                     Total           % of
Shareholder                                             Class/Series Name                           Shares        Class Series
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>                                          <C>          <C>
Issac Applbaum                                          All (As if converted)                       18,079             0.1700
                                                        ORDINARY SHARES                                674             0.0172
                                                        SERIES A PREFERRED SHARES                   17,405             0.8303

Sharon Azulai                                           All (As if converted)                      885,966             8.3321
                                                        ORDINARY SHARES                            885,966            22.6481

David Barzilai                                          All (As if converted)                      885,965             8.3321
                                                        ORDINARY SHARES                            885,965            22.6481

David J. Blumberg                                       All (As if converted)                      112,551             1.0585
                                                        ORDINARY SHARES                              4,194             0.1072
                                                        SERIES A PREFERRED SHARES                  108,357             5.1691

Casin 1997 Chartible Trust UTA dated 1/28/97            All (As if converted)                      150,104             1.4117
                                                        ORDINARY SHARES                              5,594             0.1430
                                                        SERIES B PREFERRED SHARES                  144,510             3.1245

The Cassin Foundation
                                                        All (As if converted)                      120,083             1.1293
                                                        ORDINARY SHARES                              4,475             0.1144
                                                        SERIES B PREFERRED SHARES                  115,608             2.4996

Donald L. Lucas, SUCCTTEE, Donald L. Lucas Profit       All (As if converted)                      270,184             2.5410
Sharing Trust                                           ORDINARY SHARES                             10,068             0.2574
                                                        SERIES B PREFERRED SHARES                  260,116             5.6241

Forval Creative, Inc.                                   All (As if converted)                    1,814,491            17.0645
                                                        ORDINARY SHARES                             67,616             1.7285
                                                        SERIES A PREFERRED SHARES                1,746,875            83.3333

Investee Clali Trust Company, Ltd.                      All (As if converted)                        8,125             0.0764
                                                        ORDINARY SHARES                              8,125             0.2077

Ran Levy                                                All (As if converted)                      925,243             8.7015
                                                        ORDINARY SHARES                            925,243            23.6522

RWI Group II, L.P.                                      All (As if converted)                      600,410             5.6466
                                                        ORDINARY SHARES                             22,374             0.5720
                                                        SERIES B PREFERRED SHARES                  578,036            12.4981

Sand Hill Financial Company                             All (As if converted)                      300,204             2.8233
                                                        ORDINARY SHARES                             11,187             0.2860
                                                        SERIES B PREFERRED SHARES                  289,017             6.2490

Santa Clara University                                  All (As if converted)                       60,040             0.5647
                                                        ORDINARY SHARES                              2,237             0.0572
                                                        SERIES B PREFERRED SHARES                   57,803             1.2498

Tida Shamir, Adv (FBO Sharon Azulai)                    All (As if converted)                      450,538             4.2371
                                                        ORDINARY SHARES                            450,538            11.5172

Tida Shamir, Adv (FBO David Barzilai)                   All (As if converted)                      450,538             4.2371
                                                        ORDINARY SHARES                            450,538            11.5172

Tida Shamir                                             All (As if converted)                       45,341             0.4264
                                                        ORDINARY SHARES                             45,341             1.1591

St. Francis Growth Fund                                 All (As if converted)                       30,025             0.2824
                                                        ORDINARY SHARES                              1,119             0.0286
                                                        SERIES B PREFERRED SHARES                   28,906             0.6250

Saint Mary's College of California                      All (As if converted)                       30,025             0.2824
                                                        ORDINARY SHARES                              1,119             0.0286
                                                        SERIES B PREFERRED SHARES                   28,906             0.6250

Gil Sudai                                               All (As if converted)                       54,780             0.5152
                                                        ORDINARY SHARES                              2,041             0.0522
</TABLE>
<PAGE>

Report Date:       11/16/99                    Conduct Ltd.         Page 2 of 2
Date Printed:      11/16/99   (List of All Current Shareholders - Alphabetic)

<TABLE>
<CAPTION>
                                                                                                Total           % of
Shareholder                                    Class/Series Name                                Shares       Class Series
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                            <C>                                           <C>            <C>
Telos Venture Partners, L.P.                   All (As if converted)                            2,402,367      22.5932
                                               ORDINARY SHARES                                     89,523       2.2885
                                               SERIES B PREFERRED SHARES                        2,312,844      50.0074

Teton Capital Company                          All (As if converted)                              810,553       7.6229
                                               ORDINARY SHARES                                     30,205       0.7721
                                               SERIES B PREFERRED SHARES                          780,348      16.8724

Roy Twersky                                    All (As if converted)                               87,096       0.8191
                                               ORDINARY SHARES                                      3,246       0.0830
                                               SERIES A PREFERRED SHARES                           83,850       4.0000

Unicycle Trading Company                       All (As if converted)                               90,392       0.8501
                                               ORDINARY SHARES                                      3,368       0.0861
                                               SERIES A PREFERRED SHARES                           87,024       4.1514

Bert L. Zaccaria                               All (As if converted)                               30,025       0.2824
                                               ORDINARY SHARES                                      1,119       0.0286
                                               SERIES B PREFERRED SHARES                           28,906       0.6250

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

No. of Shareholders: 24      TOTALS:           All (As if converted)                           10,633,125     100.0000
No. of Shareholders: 24                        ORDINARY SHARES                                  3,911,875     100.0000
No. of Shareholders: 6                         SERIES A PREFERRED SHARES                        2,096,250     100.0000
No. of Shareholders: 11                        SERIES B PREFERRED SHARES                        4,625,000     100.0000
</TABLE>
<PAGE>

                                   EXHIBIT B
                                   ---------

                              CERTAIN DEFINITIONS

     For purposes of the Agreement (including this Exhibit B):
                                                   ---------

     Acquisition Transaction. "Acquisition Transaction" means any transaction
involving: (a) the sale, license, disposition or acquisition of all or
substantially all of the business or assets of Conduct (taken as a whole) or
Mercury (taken as a whole), as the case may be; (b) the issuance, disposition or
acquisition of capital shares or other equity securities of Conduct or Mercury,
as the case may be, constituting more than 50% of the outstanding voting
securities of Conduct or Mercury, as the case may be; or (c) any merger,
consolidation, business combination, reorganization or similar transaction
involving Conduct or Mercury, as the case may be.

     Aggregate Preferred Stock Liquidation Preference. "Aggregate Preferred
Stock Liquidation Preference" means the aggregate number of shares of Mercury
Stock issuable pursuant to Section 1.5(a)(i) and Section 1.5(a)(ii) of the
Agreement.

     Agreement. "Agreement" shall mean the Share Exchange Agreement to which
this Exhibit B is attached (including the Disclosure Schedule), as it may be
     ---------
amended from time to time.

     Breach. There shall be deemed to be a "Breach" of a representation,
warranty, covenant, obligation or other provision if there is or has been any
material inaccuracy in or breach of, or any failure to comply with or perform,
such representation, warranty, covenant, obligation or other provision.

     Conduct Capital Shares. "Conduct Capital Shares" means the shares of
Conduct Ordinary Shares and the Conduct Preferred Shares.

     Conduct Contract. "Conduct Contract" shall mean any Contract: (a) to which
Conduct or Subsidiary is a party; (b) by which Conduct, Subsidiary or any of
either of their assets is or may become bound or under which Conduct or
Subsidiary has, or may become subject to, any obligation; or (c) under which
Conduct or Subsidiary has or may acquire any right or interest.

     Conduct Convertible Promissory Note. "Conduct Convertible Promissory Note"
means the outstanding Conduct convertible unsecured promissory notes in the
aggregate principal amounts listed in Part 2.3(a)(2) of the Disclosure Schedule.

     Conduct Noteholders. "Conduct Noteholders" means the holders of the Conduct
Convertible Promissory Notes listed in Part 2.3(a)(2) of the Disclosure
Schedule.

          Conduct Preferred Shares. "Conduct Preferred Shares" means the shares
of Series A Preferred and the Series B Preferred of Conduct.
<PAGE>

     Conduct Proprietary Asset. "Conduct Proprietary Asset" shall mean any
Proprietary Asset owned by or licensed to Conduct or Subsidiary or otherwise
used by Conduct or Subsidiary.

     Consent. "Consent" shall mean any approval, consent, ratification,
permission, waiver or authorization (including any Governmental Authorization).

     Contract. "Contract" shall mean any written, oral or other agreement,
contract, subcontract, lease, understanding, instrument, note, warranty,
insurance policy, benefit plan, or legally binding commitment or undertaking of
any nature which has any continuing obligation or liability after the Closing.

     Damages. "Damages" shall include any loss, damage, injury, decline in
value, lost opportunity, Liability, claim, demand, settlement, judgment, award,
fine, penalty, Tax, fee (including reasonable attorneys' fees), charge, cost
(including costs of investigation) or expense of any nature.

     Disclosure Schedule. "Disclosure Schedule" shall mean the schedule (dated
as of the date of the Agreement) delivered to Mercury on behalf of the Conduct
Shareholders.

     Employee Benefit Plan. "Employee Benefit Plan" shall have the meaning
specified in Section 3(3) of ERISA.

     Encumbrance. "Encumbrance" shall mean any lien, pledge, hypothecation,
charge, mortgage, security interest, encumbrance, claim, infringement,
interference, option, right of first refusal, preemptive right, community
property interest or restriction of any nature (including any restriction on the
voting of any security, any restriction on the transfer of any security or other
asset, any restriction on the receipt of any income derived from any asset, any
restriction on the use of any asset and any restriction on the possession,
exercise or transfer of any other attribute of ownership of any asset).

     Entity. "Entity" shall mean any corporation (including any non-profit
corporation), general partnership, limited partnership, limited liability
partnership, joint venture, estate, trust, company (including any limited
liability company or joint stock company), firm or other enterprise,
association, organization or entity.

     Exchange Act. "Exchange Act" shall mean the Securities Exchange Act of
1934, as amended.

     Fully Diluted Number of Conduct Capital Shares. "Fully Diluted Number of
Conduct Capital Shares" means the sum of (i) the aggregate number of shares of
Conduct Ordinary Shares, Series A Preferred and Series B Preferred outstanding
immediately prior to the Closing, plus (ii) the aggregate number of shares of
Conduct Ordinary Shares issuable upon the exercise of any option to purchase
Conduct Ordinary Shares outstanding immediately prior to the Closing, regardless
of whether such option is exercisable as of the Closing.
<PAGE>

     Governmental Authorization. "Governmental Authorization" shall mean any:
(a) permit, license, certificate, franchise, permission, clearance,
registration, qualification or authorization issued, granted, given or otherwise
made available by or under the authority of any Governmental Body or pursuant to
any Legal Requirement; or (b) right under any Contract with any Governmental
Body.

     Governmental Body. "Governmental Body" shall mean any: (a) nation, state,
commonwealth, province, territory, county, municipality, district or other
jurisdiction of any nature; (b) federal, state, local, municipal, foreign or
other government; or (c) governmental or quasi-governmental authority of any
nature (including any governmental division, department, agency, commission,
instrumentality, official, organization, unit, body or Entity and any court or
other tribunal).

     Knowledge. An individual shall be deemed to have "Knowledge" of a
particular fact or other matter if: (a) such individual is actually aware of
such fact or other matter; or (b) a prudent individual would be expected to
become aware of such fact or other matter in normal scope of performing his
duties. Conduct shall be deemed to have "Knowledge" of a particular fact or
other matter if any officer or director level employee of Conduct or Subsidiary
has Knowledge of such fact or other matter. Mercury shall be deemed to have
"Knowledge" of a particular fact or other matter if any officer of Mercury has
Knowledge of such fact or other matter.

     Indemnitees. "Indemnitees" shall mean the following Persons: (a) Mercury;
(b) Mercury's current and future affiliates (including Conduct); (c) the
respective Representatives of the Persons referred to in clauses "(a)" and "(b)"
above; and (d) the respective successors and assigns of the Persons referred to
in clauses "(a)", "(b)" and "(c)" above; provided, however, that the Conduct
Shareholders shall not be deemed to be "Indemnitees."

     Legal Proceeding. "Legal Proceeding" shall mean any action, suit,
litigation, arbitration, proceeding (including any civil, criminal,
administrative, investigative or appellate proceeding), hearing, inquiry, audit,
examination or investigation commenced, brought, conducted or heard by or
before, or otherwise involving, any court or other Governmental Body or any
arbitrator or arbitration panel.

     Legal Requirement. "Legal Requirement" shall mean any federal, state,
local, municipal, foreign or other law, statute, constitution, principle of
common law, resolution, ordinance, code, edict, decree, rule, regulation, ruling
or requirement issued, enacted, adopted, promulgated, implemented or otherwise
put into effect by or under the authority of any Governmental Body.

     Liability. "Liability" means any debt, obligation, duty or liability of any
nature (including any unknown, undisclosed, unmatured, unaccrued, unasserted,
contingent, indirect, conditional, implied, vicarious, derivative, joint,
several or secondary liability), regardless of whether such debt, obligation,
duty or liability would be required to be disclosed on a balance sheet prepared
in accordance with generally accepted accounting principles and regardless of
whether such debt, obligation, duty or liability is immediately due and payable.
<PAGE>

     Material Adverse Effect. A violation or other matter will be deemed to have
a "Material Adverse Effect" on Conduct and Subsidiary if such violation or other
matter would have a material adverse effect on Conduct's business, condition,
assets, liabilities, operations or financial performance.

     Mercury Stock. "Mercury Stock" shall mean the common stock, par value $.002
per share, of Mercury.

     Mercury Average Stock Price. "Mercury Average Stock Price" means the
average of the closing sale prices of a share of Mercury Stock as reported on
the Nasdaq National Market for the ten trading days ending on the first trading
day immediately preceding the date of this Agreement.

     Person. "Person" shall mean any individual, Entity or Governmental Body.

     Proprietary Asset. "Proprietary Asset" shall mean any: (a) patent, patent
application, trademark (whether registered or unregistered), trademark
application, trade name, fictitious business name, service mark (whether
registered or unregistered), service mark application, copyright (whether
registered or unregistered), copyright application, maskwork, maskwork
application, trade secret, know-how, customer list, franchise, system, computer
software, source code, computer program, invention, design, blueprint,
engineering drawing, proprietary product, technology, proprietary right or other
intellectual property right or intangible asset; or (b) right to use or exploit
any of the foregoing.

     Representatives. "Representatives" shall mean officers, directors,
employees, agents, attorneys, accountants, advisors and representatives.

     SEC. "SEC" shall mean the United States Securities and Exchange Commission.

     Securities Act. "Securities Act" shall mean the Securities Act of 1933, as
amended.

     Tax. "Tax" shall mean any tax (including any income tax, franchise tax,
capital gains tax, gross receipts tax, value-added tax, surtax, excise tax, ad
valorem tax, transfer tax, stamp tax, sales tax, use tax, property tax, business
tax, withholding tax or payroll tax), levy, assessment, tariff, duty (including
any customs duty), deficiency or fee, and any related charge or amount
(including any fine, penalty or interest), imposed, assessed or collected by or
under the authority of any Governmental Body.

     Tax Return. "Tax Return" shall mean any return (including any information
return), report, statement, declaration, estimate, schedule, notice,
notification, form, election, certificate or other document or information filed
with or submitted to, or required to be filed with or submitted to, any
Governmental Body in connection with the determination, assessment, collection
or payment of any Tax or in connection with the administration, implementation
or enforcement of or compliance with any Legal Requirement relating to any Tax.
<PAGE>

                                                              EXHIBIT C TO SHARE
                                                              EXCHANGE AGREEMENT

                                ESCROW AGREEMENT

     This Escrow Agreement (the "Escrow Agreement") is entered into as of
November 24, 1999, by and among Mercury Interactive Corporation, a Delaware
corporation ("Mercury"), each of the Conduct Shareholders of Conduct Ltd.
identified on Attachment A (the "Conduct Shareholders"), David Barzilai (the
"Conduct Shareholders' Agent") and U.S. Bank Trust National Association (the
"Escrow Agent").

                                    Recitals

     A.  Mercury, the Conduct Shareholders and Conduct Ltd., an Israeli
corporation ("Conduct"), Conduct Software Technologies, Inc., a California
corporation and wholly-owned subsidiary of Conduct (the "Subsidiary") are
entering into an Share Exchange Agreement of even date herewith (the "Exchange
Agreement"), pursuant to which the Conduct Shareholders are exchanging all of
their outstanding capital shares of Conduct for shares of common stock of
Mercury, after which, Conduct will be a wholly-owned subsidiary of Mercury.

     B.  The Exchange Agreement contemplates the establishment of an escrow
arrangement to secure the indemnification and other obligations of the Conduct
Shareholders under the Exchange Agreement.

                                   Agreement

     The parties, intending to be legally bound, agree as follows:

     1.  Defined Terms.  Capitalized terms used in this Escrow Agreement and not
otherwise defined shall have the meanings given to them in the Exchange
Agreement.

     2.  Escrow and Indemnification.

         (a) Shares and Stock Powers Placed in Escrow. At the Closing: (i)
Mercury shall issue an aggregate of 38,789 shares of Mercury Stock, evidenced by
one stock certificate of Mercury issued in the name of the Escrow Agent,
evidencing the shares of Mercury Stock to be held in escrow in accordance with
this Agreement. The shares of Mercury Stock being held in escrow pursuant to
this Agreement (the "Escrow Shares") shall constitute an escrow fund (the
"Escrow Fund") with respect to the indemnification obligations of the Conduct
Shareholders under the Exchange Agreement.  The Escrow Fund shall be held as a
trust fund and shall not be treated as the property of Mercury nor subject to
any lien, attachment, trustee process or any other judicial process of any
creditor of any Conduct Shareholder or of any party hereto.  The Escrow Agent
agrees to accept delivery of the Escrow Fund and to hold the Escrow Fund in an
escrow account (the "Escrow Account") subject to the terms and conditions of
this Agreement.

         (b) Voting of Escrow Shares.  The Escrow Agent shall agree to vote the
Escrow Shares as directed by the Conduct Shareholders.

                                      1.
<PAGE>

         (c) Dividends, Etc.  Any cash, securities or other property
distributable (whether by way of dividend, stock split or otherwise) in respect
of or in exchange for any Escrow Shares shall be held by the Escrow Agent in the
Escrow.  At the time any Escrow Shares are required to be released from the
Escrow to any Person pursuant to this Escrow Agreement, any cash, securities or
other property previously distributed in respect of or in exchange for such
Escrow Shares shall be released from the Escrow to such Person.

         (d) Transferability.  The interests of the Conduct Shareholders in the
Escrow and in the Escrow Shares shall not be assignable or transferable, other
than by operation of law.  No transfer of any of such interests by operation of
law shall be recognized or given effect until Mercury and the Escrow Agent shall
have received written notice of such transfer.

         (e) Fractional Shares.  No fractional shares of Mercury Stock shall be
retained in or released from the Escrow pursuant to this Escrow Agreement.  In
connection with any release of Escrow Shares from the Escrow, Mercury and the
Escrow Agent shall be permitted to "round down" or to follow such other rounding
procedures as Mercury or the Escrow Agent reasonably determines to be
appropriate in order to avoid retaining any fractional share in the Escrow and
in order to avoid releasing any fractional share from the Escrow.

     3.  Conduct Shareholder Agent.

         (a) Power of Attorney.  Effective as of the Closing, David Barzilai
is hereby appointed as agent and attorney-in-fact (the "Conduct Shareholder
Agent") for each Conduct Shareholder, for and on behalf of Conduct Shareholders,
to give and receive notices and communications, to authorize delivery to Mercury
of shares of Mercury Stock from the Escrow Fund in satisfaction of claims by
Mercury, to object to such deliveries, to agree to, negotiate, enter into
settlements and compromises of, and demand arbitration and comply with orders of
courts and awards of arbitrators with respect to such claims, and to take all
actions necessary or appropriate in the judgment of the Conduct Shareholder
Agent for the accomplishment of the foregoing.  Such agency may be changed by
the Conduct Shareholders prior to the Closing, and after the Closing by the
former Conduct Shareholders as of the Closing from time to time upon not less
than thirty (30) days prior written notice to Mercury; provided that the Conduct
Shareholder Agent may not be removed unless holders of a two-thirds interest of
the Escrow Fund agree to such removal.  Any vacancy in the position of Conduct
Shareholder Agent may be filled by approval of the holders of a majority in
interest of the Escrow Fund.  No bond shall be required of the Conduct
Shareholder Agent, and the Conduct Shareholder Agent shall not receive
compensation for his or her services.  Notices or communications to or from the
Conduct Shareholder Agent shall constitute notice to or from each of the Conduct
Shareholders.

         (b) Indemnification of the Conduct Shareholder Agent.  The Conduct
Shareholder Agent shall not be liable for any act done or omitted hereunder as
Conduct Shareholder Agent while acting in good faith and in the exercise of
reasonable judgment.  The Conduct Shareholders on whose behalf the Escrow Amount
was contributed to the Escrow Fund shall severally indemnify the Conduct
Shareholder Agent and hold the Conduct Shareholder Agent harmless against any
loss, liability or expense incurred without negligence or bad faith on the part
of the Conduct Shareholder Agent and arising out of or in connection with the
acceptance or administration of the Conduct Shareholder Agent's duties
hereunder, including the reasonable fees and expenses of any legal counsel
retained by the Conduct Shareholder Agent.

                                      2.
<PAGE>

         (c) Actions of the Conduct Shareholder Agent.  A decision, act,
consent or instruction of the Conduct Shareholder Agent shall constitute a
decision of all the Conduct Shareholders for whom a portion of the Escrow Amount
otherwise issuable to them are deposited in the Escrow Fund and shall be final,
binding and conclusive upon each of such Conduct Shareholders, and the Escrow
Agent and Mercury may rely upon any such decision, act, consent or instruction
of the Conduct Shareholder Agent as being the decision, act, consent or
instruction of each and every such Conduct Shareholder.  The Escrow Agent and
Mercury are hereby relieved from any liability to any person for any acts done
by them in accordance with such decision, act, consent or instruction of the
Conduct Shareholder Agent.

     4. Administration of Escrow Account. Except as otherwise provided herein,
the Escrow Agent shall administer the Escrow Account as follows:

         (a) If any Indemnitee has or claims to have incurred or suffered
Damages for which it is or may be entitled to indemnification, compensation or
reimbursement under Section 10 of the Exchange Agreement, once the aggregate of
such Damages exceeds $50,000, such Indemnitee may, on or prior to the
Termination Date, deliver a claim notice (a "Claim Notice") signed by any
Authorized Officer (as defined below) of Mercury (an "Officer's Certificate") to
the Conduct Shareholders' Agent and to the Escrow Agent.  Each Claim Notice
shall state that such Indemnitee believes that there is or has been a breach of
a representation, warranty or covenant or other provision contained in the
Exchange Agreement or that such Indemnitee is otherwise entitled to
indemnification, compensation or reimbursement under the Exchange Agreement and
contain a brief description of the circumstances supporting such Indemnitee's
belief that there is or has been such a breach or that such Indemnitee is so
entitled to indemnification, compensation or reimbursement and shall, to the
extent possible, contain a non-binding, preliminary estimate of the amount of
Damages such Indemnitee claims to have so incurred or suffered (the "Claimed
Amount").  For purposes hereof, the term Authorized Officer shall refer to each
of Mercury's Chief Executive Officer, President and Chief Financial Officer.

         (b) Within 30 business days after delivery of a Claim Notice, the
Conduct Shareholders' Agent may deliver to the Indemnitee who delivered the
Claim Notice and to the Escrow Agent a written response (the "Response Notice")
in which the Conduct Shareholders' Agent:  (i) agrees that Escrow Shares having
a "Stipulated Value" (as defined below) equal to the full Claimed Amount may be
released from the Escrow Account to the Indemnitee; (ii) agrees that Escrow
Shares having a Stipulated Value equal to part, but not all, of the Claimed
Amount (the "Agreed Amount") may be released from the Escrow Account to the
Indemnitee; or (iii) indicates that no part of the Claimed Amount may be
released from the Escrow Account to the Indemnitee.  Any part of the Claimed
Amount that is not to be released to the Indemnitee shall be the "Contested
Amount."  If a Response Notice is not delivered by the Conduct Shareholders'
Agent to the Indemnitee and the Escrow Agent within such 30 business-day period,
the Conduct Shareholders' Agent shall be deemed to have agreed that Escrow
Shares having a Stipulated Value equal to the full Claimed Amount may be
released to the Indemnitee from the Escrow Account, but only to the extent such
Claimed Amount exceeds $50,000.

         (c) If the Conduct Shareholders' Agent in the Response Notice agrees
that Escrow Shares having a Stipulated Value equal to the full Claimed Amount
may be released from the Escrow Account to the Indemnitee, or if a Response
Notice is not delivered in accordance with Section 3(b), the Escrow Agent shall
promptly following the receipt of the Response Notice (or, if a Response Notice
is not duly delivered, promptly following the

                                      3.
<PAGE>

expiration of the 30 business-day period referred to in Section 3(b)), deliver
to such Indemnitee such Escrow Shares, but only to the extent such Claimed
Amount exceeds $50,000.

          (d) If the Conduct Shareholders' Agent in the Response Notice agrees
that Escrow Shares having a Stipulated Value equal to part, but not all, of the
Claimed Amount may be released from the Escrow Account to the Indemnitee, the
Escrow Agent shall promptly following the receipt of the Response Notice deliver
to such Indemnitee Escrow Shares having a Stipulated Value equal to the Agreed
Amount, but only to the extent such Agreed Amount exceeds $50,000.

          (e) If any Response Notice indicates that there is a Contested Amount,
the Conduct Shareholders' Agent and the Indemnitee shall attempt in good faith
to resolve the dispute related to the Contested Amount.  If the Indemnitee and
the Conduct Shareholders' Agent shall resolve such dispute, a settlement
agreement shall be signed by the Indemnitee and the Conduct Shareholders' Agent
and sent to the Escrow Agent, who shall upon receipt thereof, release Escrow
Shares from the Escrow Account in accordance with such agreement, but only to
the extent the amount of such settlement exceeds $50,000.

         (f) If the Conduct Shareholders' Agent and the Indemnitee are unable
to resolve the dispute relating to any Contested Amount within 30 business days
after the delivery of the Claim Notice, then the claim described in the Claim
Notice shall be settled by binding arbitration in the County of Santa Clara in
the State of California in accordance with the Commercial Arbitration Rules then
in effect of the American Arbitration Association (the "AAA Rules").
Arbitration will be conducted by three arbitrators; one selected by Mercury, one
selected by the Conduct Shareholders' Agent and the third selected by the first
two arbitrators.  The parties agree to use all reasonable efforts to cause the
arbitration hearing to be conducted within 60 calendar days after the
appointment of the last of the three arbitrators and to use all reasonable
efforts to cause the arbitrators' decision to be furnished within 95 calendar
days after the appointment of the last of the three arbitrators. The
arbitrators' decision shall relate solely to whether the Indemnitee is entitled
to recover the Contested Amount (or a portion thereof), and the portion of such
Contested Amount the Indemnitee is entitled to recover and to which party is the
prevailing party in the arbitration.  The final decision of the arbitrators
shall be furnished to the Conduct Shareholders' Agent, the Indemnitee and the
Escrow Agent in writing and shall constitute a conclusive determination of the
issue in question, binding upon the Conduct Shareholders' Agent, the Conduct
Shareholders, the Indemnitee and the Escrow Agent and shall not be contested by
any of them.  The non-prevailing party (as determined by the arbitrator) in any
arbitration shall pay the reasonable expenses (including attorneys' fees) of the
prevailing party and the fees and expenses associated with the arbitration
(including the arbitrators' fees and expenses) ), provided, however, that if the
non-prevailing party is the Conduct Shareholders such expenses may only be
recovered from the Escrow Fund.

         (g) The Escrow Agent shall release Escrow Shares from the Escrow
Account in connection with any Contested Amount within five (5) business days
after the delivery to it of: (i) a copy of a settlement agreement executed by
the Indemnitee and the Conduct Shareholders' Agent setting forth instructions to
the Escrow Agent as to the number of Escrow Shares, if any, to be released from
the Escrow Account, with respect to such Contested Amount; or (ii) a copy of the
award of the arbitrators referred to and as provided in Section 3(f) setting
forth instructions to the Escrow Agent as to the number of Escrow Shares, if
any, to be released from the Escrow Account, with respect to such Contested
Amount.

                                      4.
<PAGE>

     5.  Release of Escrow Fund.  If any Escrow Shares are to be released to any
Indemnitee pursuant to this Escrow Agreement, the Escrow Agent shall be entitled
to use a Stock Power held in the Escrow, and to take such other actions as the
Escrow Agent determines to be necessary or advisable, to release and transfer
Escrow Shares to such Indemnitee.  Within five business days after the
Termination Date, the Escrow Agent shall distribute to the Conduct Shareholders
all of the Escrow Shares then held in escrow; provided, however, that
notwithstanding the foregoing, if, prior to the Termination Date, any Indemnitee
has given a Claim Notice containing a claim which has not been resolved prior to
the Termination Date in accordance with Section 3, the Escrow Agent shall retain
in the Escrow Account after the Termination Date Escrow Shares having a
Stipulated Value equal to 100% of the Claimed Amount or Contested Amount, as the
case may be, with respect to all claims which have not then been resolved.  To
the extent that upon such release any of the Escrow Shares being distributed
remain subject to the terms of Share Restriction Agreements to which any of the
Conduct Shareholders are a party ("SRAs"), then the Escrow Agent shall be
directed by Mercury to distribute such Escrow Shares to the Corporate Secretary
of Mercury (or any other or successor escrow agent under such SRAs as designated
by Mercury) to be held under the terms of such SRAs.

     6.  Valuation of Escrow Shares, Etc.

         (a) Stipulated Value. For purposes of this Escrow Agreement, the
"Stipulated Value" of each Escrow Share means the closing sale price of a share
of Mercury Stock as reported on the Nasdaq National Market on the Closing Date
of the transactions contemplated by the Exchange Agreement.

         (b) Stock Splits.  All numbers contained in, and all calculations
required to be made pursuant to, this Escrow Agreement shall be adjusted as
appropriate to reflect any stock split, reverse stock split, stock dividend or
similar transaction effected by Mercury after the date hereof.

     7. Fees and Expenses. The fees of the Escrow Agent, including (i) the
normal costs of administering the Escrow as set forth on the Fee Schedule
attached hereto as Attachment B and (ii) all fees and costs associated with the
                   ------------
Escrow Agent's administration of Indemnification Claims, shall be paid by
Mercury. In the event that the Escrow Agent renders any service hereunder not
provided for herein or there is any assignment of any interest in the subject
matter of the Escrow or modification hereof, the Escrow Agent shall be
reasonably compensated for such extraordinary services by the party that is
responsible for or requests such services.

     8.  Limitation of Escrow Agent's Liability.

         (a) The Escrow Agent undertakes to perform such duties as are
specifically set forth in this Escrow Agreement only and shall have no duty
under any other agreement or document notwithstanding their being referred to
herein or attached hereto as an exhibit.  The Escrow Agent shall not be liable
except for the performance of such duties as are specifically set forth in this
Escrow Agreement, and no implied covenants or obligations shall be read into
this Escrow Agreement against the Escrow Agent.  The Escrow Agent shall incur no
liability with respect to any action taken by it or for any inaction on its part
in reliance upon any notice, direction, instruction, consent, statement or other
document believed by it to be genuine and duly

                                      5.
<PAGE>

authorized, nor for any other action or inaction except for its own willful
misconduct or negligence. In all questions arising under this Escrow Agreement,
the Escrow Agent may rely on the advice of counsel, and for anything done,
omitted or suffered in good faith by the Escrow Agent based upon such advice the
Escrow Agent shall not be liable to anyone. The Escrow Agent shall not be
required to take any action hereunder involving any expense unless the payment
of such expense is made or provided for in a manner reasonably satisfactory to
it.

         (b) Mercury hereby agrees to indemnify the Escrow Agent for, and hold
it harmless against, any loss, liability or expense incurred without negligence
or willful misconduct on the part of Escrow Agent, arising out of or in
connection with its carrying out of its duties hereunder.  This right of
indemnification shall survive the termination of this Escrow Agreement, and the
resignation of the Escrow Agent.  The costs and expenses of enforcing this right
of indemnification shall also be paid by Mercury.

         (c) If any controversy arises between the Parties to this Agreement,
or with any other Party, concerning the subject matter of this Agreement, its
terms or conditions that are not resolved pursuant to Section 4 hereof, Escrow
Agent will not be required to determine the controversy or to take any action
regarding it.  Escrow Agent may hold all documents and funds and may wait for
settlement of any such controversy by final appropriate legal proceedings or
other means as, in Escrow Agent's discretion, Escrow Agent may require, despite
what may be set forth elsewhere in this Agreement.  In such event, Escrow Agent
will not be liable for interest or damage.  Furthermore, Escrow Agent may at its
option, file an action of interpleader requiring the Parties to answer and
litigate any claims and rights among themselves.  Escrow Agent is authorized to
deposit with the clerk of the court all documents and funds held in escrow,
except all costs, expenses, charges and reasonable attorney fees incurred by
Escrow Agent due to the interpleader action and which the Parties jointly and
severally agree to pay.  Upon initiating such action, Escrow Agent shall be
fully released and discharged of and from all obligations and liability imposed
by the terms of this Agreement.

     9. Termination. This Escrow Agreement shall terminate upon the earlier of:
(i) the first anniversary of the Closing Date; (ii) the filing with the SEC of
Mercury's Form 10-K containing audited financial statements and accompanying
audit report of combined operations of Mercury and Conduct ending after the
Closing; or (iii) the issuance by Mercury's regularly employed independent
public accountants of audited financial statements and accompanying audit report
covering thirty days of combined operations of Mercury and Conduct ending after
the Closing Date (the "Termination Date").

     10. Successor Escrow Agent; Automatic Succession.

         (a) In the event the Escrow Agent becomes unavailable or unwilling to
continue as escrow agent under this Escrow Agreement, the Escrow Agent may
resign and be discharged from its duties and obligations hereunder by giving its
written resignation to the parties to this Escrow Agreement.  Such resignation
shall take effect not less than 30 calendar days after it is given to all
parties hereto.  Mercury may appoint a successor Escrow Agent only with the
consent of the Conduct Shareholders' Agent (which consent shall not be
unreasonably withheld or delayed).  The Escrow Agent shall act in accordance
with written instructions from Mercury as to the transfer of the Escrow Fund to
a successor escrow agent.

                                      6.
<PAGE>

         (b) Any company into which the Escrow Agent may be merged or with
which it may be consolidated, or any company to whom Escrow Agent may transfer a
substantial  amount of its global escrow business, shall be the successor of
Escrow Agent without the execution or filing of any paper of any further act on
the part of any of the parties hereof, anything herein to the contrary
notwithstanding.

     11. Miscellaneous.

         (a) Notices. Any notice or other communication required or permitted
to be delivered to any party under this Agreement shall be in writing and shall
be deemed properly delivered, given and received when delivered (by hand, by
registered mail, by courier or express delivery service or by facsimile) to the
address or facsimile telephone number set forth beneath the name of such party
below (or to such other address or facsimile telephone number as such party
shall have specified in a written notice given to the other parties hereto):

          if to the Conduct Shareholders' Agent:

               David Barzilai
               923 Kintyre Way
               Sunnyvale, CA 94087
               Telephone:  408-730-2567

               with a copy to:
               --------------

               Wilson Sonsini Goodrich & Rosati, Professional Corporation
               650 Page Mill Road
               Palo Alto, CA  94304-1050
               Attention: Neil Wolff, Esq.
                       Jon P. Layman, Esq.
               Telephone: (650) 493-9300
               Facsimile: (650) 493-6811

               And to:
               ------

               Tida Shamir & Co., Advocates
               3A Jabotinsky Street
               Ramat Gam 52520, Israel
               Attention:  Tida Shamir, Esq.
               Telephone: 972-3-613-7979
               Facsimile: 972-3-613-7969

          if to Mercury:

               Mercury Interactive Corporation
               1325 Borregas Avenue
               Sunnyvale, California  94089
               Attention:  Sharlene Abrams
               Telephone No.: (408) 822-5247
               Facsimile: (408) 822-5507

                                      7.
<PAGE>

               with a copy to:
               --------------

               General Counsel Associates LLP
               1891 Landings Drive
               Mountain View, CA 94043
               Attention:  Susan J. Skaer, Esq.
               Telephone:  (650) 428-3900
               Facsimile:  (650) 428-3901

          if to the Escrow Agent:

               U.S. Bank Trust National Association
               One California Street, 4th Floor
               San Francisco, CA  94111
               Attention:  Ann Gatsby
               Fax:  (415) 273-4590
               Tel:  (415) 273-4532

         (b) Counterparts.  This Escrow Agreement may be executed in several
counterparts, each of which shall constitute an original and all of which, when
taken together, shall constitute one agreement.

         (c) Governing Law; Venue.  This Escrow Agreement shall be construed in
accordance with, and governed in all respects by, the laws of the State of
California without giving effect to principles of conflicts of laws.  Any legal
action or other legal proceeding relating to this Escrow Agreement or the
enforcement of any provision of this Escrow Agreement may be brought or
otherwise commenced in any state or federal court located in the County of Santa
Clara, California.  Each party to this Escrow Agreement: (i) expressly and
irrevocably consents and submits to the jurisdiction of each state and federal
court located in the County of Santa Clara, California (and each appellate court
located in the County of Santa Clara, California) in connection with any such
legal proceeding;  (ii) agrees that each state and federal court located in the
County of Santa Clara, California shall be deemed to be a convenient forum; and
(iii) agrees not to assert (by way of motion, as a defense or otherwise), in any
such legal proceeding commenced in any state or federal court located in the
County of Santa Clara, California, any claim that such party is not subject
personally to the jurisdiction of such court, that such legal proceeding has
been brought in an inconvenient forum, that the venue of such proceeding is
improper or that this Escrow Agreement or the subject matter of this Escrow
Agreement may not be enforced in or by such court.  Nothing contained in this
Section 10(c) shall be deemed to limit or otherwise affect the right of any
party hereto to commence any legal proceeding or otherwise proceed against any
other party hereto in any other forum or jurisdiction.

         (d) Successors and Assigns.  This Escrow Agreement shall be binding
upon: the Conduct Shareholders and their respective personal representatives,
executors, administrators, estates, heirs, successors and assigns (if any); and
Mercury and its successors and assigns (if any).  This Escrow Agreement shall
inure to the benefit of: the Conduct Shareholders; Mercury; the other
Indemnitees; and the respective successors and assigns (if any) of the
foregoing.  Mercury may freely assign any or all of its rights under this Escrow
Agreement, in

                                      8.
<PAGE>

whole or in part, to any other Person without obtaining the
consent or approval of any other party hereto or of any other Person.  None of
the Conduct Shareholders or the Conduct Shareholders' Agent shall be permitted
to assign any of his rights or delegate any of his obligations under this Escrow
Agreement without Mercury's prior written consent.

         (e) Waiver.  No failure on the part of any Person to exercise any
power, right, privilege or remedy under this Escrow Agreement, and no delay on
the part of any Person in exercising any power, right, privilege or remedy under
this Escrow Agreement, shall operate as a waiver of such power, right, privilege
or remedy; and no single or partial exercise of any such power, right, privilege
or remedy shall preclude any other or further exercise thereof or of any other
power, right, privilege or remedy.  No Person shall be deemed to have waived any
claim arising out of this Escrow Agreement, or any power, right, privilege or
remedy under this Escrow Agreement, unless the waiver of such claim, power,
right, privilege or remedy is expressly set forth in a written instrument duly
executed and delivered on behalf of such Person; and any such waiver shall not
be applicable or have any effect except in the specific instance in which it is
given.

         (f) Amendments.  This Escrow Agreement may not be amended, modified,
altered or supplemented other than by means of a written instrument duly
executed and delivered on behalf of Mercury, the Conduct Shareholders' Agent and
the Escrow Agent.

         (g) Severability.  In the event that any provision of this Escrow
Agreement, or the application of any such provision to any Person or set of
circumstances, shall be determined to be invalid, unlawful, void or
unenforceable to any extent, the remainder of this Escrow Agreement, and the
application of such provision to Persons or circumstances other than those as to
which it is determined to be invalid, unlawful, void or unenforceable, shall not
be impaired or otherwise affected and shall continue to be valid and enforceable
to the fullest extent permitted by law.

         (h) Entire Agreement.  This Escrow Agreement sets forth the entire
understanding of the parties relating to the subject matter hereof and thereof
and supersede all prior agreements and understandings among or between any of
the parties relating to the subject matter hereof and thereof.

         (i) Construction.  For purposes of this Escrow Agreement, whenever the
context requires: the masculine gender shall include the feminine and neuter
genders; the feminine gender shall include the masculine and neuter genders; and
the neuter gender shall include the masculine and feminine genders.  The parties
hereto agree that any rule of construction to the effect that ambiguities are to
be resolved against the drafting party shall not be applied in the construction
or interpretation of this Escrow Agreement.  As used in this Escrow Agreement,
the words "include" and "including," and variations thereof, shall not be deemed
to be terms of limitation, but rather shall be deemed to be followed by the
words "without limitation."  Except as otherwise indicated, all references in
this Escrow Agreement to "Sections" and "Attachments" are intended to refer to
Sections of this Escrow Agreement and Attachments to this Escrow Agreement.

                  [Remainder of Page Intentionally Left Blank]

                                      9.
<PAGE>

     IN WITNESS WHEREOF, the parties have duly executed this Escrow Agreement as
of the day and year first above written.

                                   MERCURY INTERACTIVE CORPORATION



                                   By:
                                       ________________________________

                                   Title:
                                          _____________________________


                                   Conduct Shareholders' Agent



                                   Name: ______________________________


                                   ESCROW AGENT

                                   U.S. BANK TRUST NATIONAL
                                   ASSOCIATION

                                   _____________________________________

                                   By:
                                       _________________________________

                                   Title:
                                          ______________________________


                                      10.
<PAGE>

                             SIGNATURE PAGE TO THE
            ESCROW AGREEMENT AMONG MERCURY INTERACTIVE CORPORATION,
                THE CONDUCT SHAREHOLDER AGENT, THE ESCROW AGENT
                 AND THE CONDUCT SHAREHOLDERS OF CONDUCT, LTD.



CONDUCT SHAREHOLDER:       ____________________________________________
                           Signature

                           By:

                           Title:_______________________________________

                           Print or Type Name:

                           Address:____________________________________

                                   ____________________________________

<PAGE>

                                  ATTACHMENT A
                          LIST OF CONDUCT SHAREHOLDERS

Name of Conduct Shareholder                         No. of Escrow Shares
- ---------------------------                         --------------------

<TABLE>
<S>                                                          <C>
Isaac Applbaum                                                                            58
Sharon Azulai                                                                          2,584
David Barzilai                                                                         2,584
David J. Blumberg                                                                        364
Cassin 1997 Charitable Trust UTA dated 1/28/97                                           582
The Cassin Foundation                                                                    466
Donald L. Lucas, SUCCTTEE, Donald L. Lucas, Profit
 Sharing Trust dtd 1/1/84                                                              1,501

Forval Creative, Inc.                                                                  5,870
Investec Clali Trust Company Ltd.                                                         24
Ran Levy                                                                               2,699
RWI Group II, L.P.                                                                     2,782
Sand Hill Financial Company                                                            1,165
Santa Clara University                                                                   233
Tida Shamir, Adv. (FBO Sharon Azulai)                                                  1,314
Tida Shamir, Adv. (FBO David Barzalai)                                                 1,314
Tida Shamir                                                                              132
St. Francis Growth Fund                                                                  116
Saint Mary's College of California                                                       116
Silicon Valley Bank                                                                      196
Gil Sudai                                                                                177
Telos Venture Partners, L.P.                                                          10,678
Teton Capital Company                                                                  3,144
Roy Twersky                                                                              282
Unicycle Trading Company , a Nevada Limited Partnership                                  292
Bert L. Zaccaria                                                                         116
- --------------------------------------------------------------------------------------------
TOTALS:                                                                               38,789
</TABLE>
<PAGE>

                                 ATTACHMENT B

                                   U.S. BANK

                            CORPORATE TRUST SERVICES

    Schedule of Fees for Mercury Interactive Corporation/Conduct Ltd. Escrow
                                    Services

ACCEPTANCE FEE
<TABLE>
<S>                                                                                           <C>
010  The acceptance fee includes the review of all documents, initial                         $2,000.00
     set-up of the account, and other reasonably required services up to
     and including the closing.  This is a one-time fee, payable at inception.

ADMINISTRATION/AGENT FEES
     Annual account administration fee covers the normal duties of the
     escrow agent associated with the management of the account.
     Administration fees are payable in advance and will not be prorated.

470  Depository Escrow Agent                                                                  $1,000.00

TRANSACTION FEES

880  Disbursement/Draw
     Charge per item disbursed.  Includes the                                                    $20.00
     wire or check fee.
100  Trades-Open Market/Directed                                                                $100.00
     Charge per trade to buy or sell permitted investments.
     This excludes U.S. Bank Investment transactions.

101  Receipts                                                                                    $20.00
     Charge per item received.

INDIRECT OUT OF POCKET

Charge for miscellaneous expenses such as fax, messenger service, overnight mail, stationery, and
postage (excluding large mailings).

166  This charge is applied against your total Administration/Agent Fees, and will be prorated.      3%

</TABLE>

EXTRAORDINARY SERVICES

     Charge for duties or responsibilities of an unusual nature not provided for
     in the indenture or otherwise set forth in this schedule. A reasonable
     charge will be made based on the nature of the service and the
     responsibility involved. These charges will be billed as a flat fee or our
     hourly rate then in effect, at our option.

Final account acceptance is subject to review of documents.  Fees are based on
our understanding of the transaction and are subject to revision if the
structure is changed.  In the event this transaction does not close, any related
out-of-pocket expenses will be billed to you at cost.  Fees for any services not
specifically covered will be based on appraisal of services rendered.

With general reference to all of our charges, it should be understood that they
are subject to adjustment from time to time, upon written notification.

The fees in this schedule are terms under which you agree to do business.
Closing the transaction constitutes agreement to this fee schedule, as does
payment of the invoice received after subsequent fee adjustment notification.

Absent your instructions to sweep or otherwise invest balances, no interest,
earnings, or other compensation for uninvested balances will be paid to you.

Dated:  November 4, 1999              Confidential
<PAGE>

                                                                    EXHIBIT D TO
                                                        SHARE EXCHANGE AGREEMENT


                    AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT
                    ---------------------------------------


     This Agreement is made this _______ day of November, 1999 (the
"Agreement"), by and between Mercury Interactive Corporation, a Delaware
corporation ("Mercury"), with its principal offices at 1325 Borregas Avenue,
Sunnyvale, CA 94089, Conduct Software Technologies, Inc. and _____________ (the
"Employee").

                                   BACKGROUND
                                   ----------

     Employee is and will be employed by Conduct Software Technologies, Inc., a
California corporation and wholly-owned subsidiary ("Subsidiary") of Conduct
Ltd. ("Conduct"), pursuant to that certain Conduct Software Technologies, Inc.
Employment Agreement, entered into as of January 22, 1998 (the "Employment
Agreement").

     A.  Pursuant to a Share Exchange Agreement, dated as of November _____,
1999, among Mercury, Subsidiary, Conduct, and the shareholders of Conduct (the
"Exchange Agreement"), it is contemplated that the shareholders of Conduct will
exchange all of their capital shares of Conduct for shares of Common Stock of
Mercury.

     B.  As provided for in the Exchange Agreement, Mercury shall assume the
Employment Agreement and the other agreements between the Employee and Conduct
and/or Subsidiary listed in the Disclosure Schedule which is attached to the
Exchange Agreement as Exhibit E thereto (the "Other Employee Agreements") upon
the closing date of the Exchange Agreement (the "Closing Date").

     C. Employee, Subsidiary and Mercury, as a sole owner of all of the
outstanding capital shares of Conduct, desire that, upon the Closing Date, the
Employment Agreement be amended as hereinafter provided.

     NOW, THEREFORE, in consideration of the covenants and promises contained in
this Agreement, Mercury, Subsidiary and Employee hereto agree to amend the
Employment Agreement, as of the Closing Date, as follows:

                            AMENDED EMPLOYMENT TERMS

1.   Title.  Section 1(a) of the Employment Agreement is hereby amended such
     -----
that Employee's title shall be _______ and Employee shall report to
______________.  Employee, Subsidiary and Mercury agree that nothing
contemplated by this Agreement or the Exchange Agreement, including but not
limited to the assumption by Employee of a new title or position, shall
constitute a termination of Employee's employment, with or


<PAGE>

without cause or otherwise, under the Employment Agreement or any Other Employee
Agreements.

2.   Salary.  Section 2(a) of the Employment Agreement is hereby amended such
     ------
that Employee's base salary shall be _________ which shall be paid to Employee
during the term of the Employment Agreement in accordance with Mercury's regular
payroll practices.  All payments shall be subject to all applicable taxes
required to be withheld by Subsidiary pursuant to federal, state or local law.

3.  Severance.  The severance payment provided pursuant to Section 13 of the
    ---------
Employment Agreement is hereby amended to equal twelve months of Employee's then
current base salary (rather than five months) and, if such severance payment is
required to be paid, shall be paid in twelve equal monthly installments (rather
than five equal monthly installments).  Employee shall be entitled to receive
severance paymentsonly if Employee's employment is terminated prior to the
expiration of the Term (as hereinafter defined) without Cause.


4.  Cause.  The definition of "Cause" set forth at Section 13(a) of the
    -----
Employment Agreement and as set forth in any Other Employee Agreements is hereby
amended in each such agreement to read as follows:


     "Cause" means (x) any act of personal dishonesty taken by Employee in
      -----
     connection with Employee's responsibilities as an employee and intended to
     result in substantial personal enrichment; (y) Employee being convicted of
     a felony; or (z) a willful act by Employee which constitute gross
     misconduct and which is injurious to Mercury, Conduct or  Subsidiary.

5.   Non-Competition.  The terms and conditions of Section 14(a) of the
     ---------------
Employment Agreement (Non-Competition) shall apply to Employee from the Closing
Date until the second anniversary of such date (the "Non-Compete Period").  In
addition to not competing with the business of Conduct during the Non-Compete
Period, Employee shall also not compete with Mercury's testing or application
performance management business during the Non-Compete Period.


6.   Term.  The term of the Employment Agreement shall be for the Non-Compete
     ----
Period (the "Term") subject to Subsidiary's right to terminate Employee's
employment prior to the expiration of the Term for any reason or no reason
whatsoever, provided, however, that if Employee's employment is terminated prior
            --------
to the expiration of the Term, Employee shall have the right to receive
severance payments to the extent provided for in the Employment Agreement, as
amended herein.


7.   Expenses and Relocation Costs.  Employee agrees and acknowledges that all
     -----------------------------
expenses owed to Employee pursuant to Employee's rights as set forth in Section
4(b) of the Employment Agreement and all moving and relocation expenses owed to
Employee as set forth in Section 5 of the Employment Agreement have been
reimbursed by Subsidiary to Employee prior to the Closing Date.  Employee agrees
that he is not

                                       2
<PAGE>

entitled to reimbursement for any costs and expenses which he incurs on or
following the Closing Date which are otherwise reimbursable under sections 4(b)
and 5 of the Employment Agreement. Subsidiary has no claim for reimbursement for
any relocation costs and expenses under Section 5 of the Employment Agreement.

8.  Prior Employment Agreement.  Employee agrees and acknowledges that the
    --------------------------
Employment Agreement between Employee and Conduct dated on or about December 28,
1995 has been terminated and is no longer of any force or effect and Employee
has been paid in full any and all amounts due and owing under such agreement.


9.   Mercury Employee Proprietary Information Agreement.  As a condition of the
     --------------------------------------------------
continuation employment with Subsidiary, Employee agrees to execute and deliver
Mercury's standard form of Employee Proprietary Information Agreement ("Mercury
Proprietary Information Agreement").  To the extent that the rights or
obligations of Employee or Mercury or Subsidiary under the Mercury Proprietary
Information Agreement differ with Employee's or Subsidiary's  rights or
obligations under the Employment Agreement or any other Agreement, the terms of
the Mercury Proprietary Information Agreement shall govern.

10.  No Other Changes.  Except for the specific amendments to the terms and
     ----------------
conditions of the Employment Agreement and the Other Employee Agreements
expressly noted in this Agreement, all other terms and conditions of such
agreements shall remain in full force and effect.


IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement on the
date and year first above written.

CONDUCT SOFTWARE TECHNOLOGIES, INC.



By:  ______________________________

Title: ____________________________



EMPLOYEE

_________________________________

Address: ______________________
        _______________________


                                       3
<PAGE>

                                                            EXHIBIT F-1 TO SHARE
                                                              EXCHANGE AGREEMENT

                  LEGAL OPINION OF TIDA SHAMIR&CO., ADVOCATES

To:

Mercury Interactive Corporation
1325 Borregas Avenue
Sunnyvale, California 94089


Reference is made to the Share Exchange Agreement, dated as of November 24,
1999, complete with all listed exhibits thereto, by and among: Mercury
Interactive Corporation, a Delaware corporation ("Mercury"), Conduct Ltd., an
Israeli corporation ("Conduct"); Conduct Software Technologies, Inc., a
California corporation and wholly-owned subsidiary of Conduct (the
"Subsidiary"); and the shareholders of Conduct Ltd. (the "Conduct Shareholders")
(the "Exchange Agreement"), pursuant to which the Conduct Shareholders are
exchanging all of their outstanding capital shares of Conduct for shares of
common stock of Mercury, after which Conduct will be a wholly-owned subsidiary
of Mercury.

This opinion is rendered to you pursuant to Section 7.3(c) of the Exchange
Agreement, and capitalized terms used but not defined herein shall have the
meanings given to them in the Exchange Agreement.

We have acted as counsel to Conduct in connection with the Exchange Agreement.
The opinion hereinafter expressed is subject to the following qualifications:

1.  We are members of the Bar of the State of Israel and are not expressing an
    opinion as to any matter relating to the laws other than the laws of the
    State of Israel as the same are in force on the date hereof and have not,
    for the purpose of giving this opinion, made any investigation of the laws
    of any other jurisdiction including, without limitation, the laws of the
    State of California or the laws of the United States of America Any issue
    which may arise with respect to this opinion will be resolved in Israel
    according to the laws of the State of Israel.

2.  We have made such legal and factual examinations and inquiries as we have
    deemed advisable or necessary for the purposes of rendering this opinion,
    and we are also relying upon (without any independent investigation or
    review thereof) on the legal opinions of other counsels of Conduct or
    Subsidiary. In addition, we have examined and are relying upon (without any
    independent investigation or review thereof) the truth and accuracy, at all
    relevant times, of statements, covenants, representations and warranties
    contained in such
<PAGE>

    documents and other instruments related to the formation, organization and
    operations of Conduct provided to us by certain of Conduct's officers as we
    deemed necessary or appropriate in order to enable us to express this
    opinion. We have also assumed that the representations and warranties as to
    factual matters made by all parties to the Exchange Agreement and pursunat
    thereto are true, correct and complete.

3.  In rendering an opinion on matters set forth, we have assumed (without any
    independent investigation or review thereof) the genuineness of all
    signatures, the legal capacity of all natural persons, the authenticity of
    all documents submitted to us as originals and the conformity to original
    documents of all documents submitted to us as copies and the authenticity of
    the originals of such documents. In making our examination of documents
    executed by corporate or other entities other than Conduct, we have assumed
    (without any independent investigation or review thereof) that such entities
    had the power, corporate or other, to enter into and perform all obligations
    thereunder and have also assumed (without any independent investigation or
    review thereof), the due authorization by all requisite action, corporate or
    other, and due execution and delivery by such entities on such documents and
    the validity and binding effect thereof. As to any facts material to this
    opinion we did not independently establish or verify, we have relied upon
    statements and representations of Conduct and others.

4.  As used in this opinion, the expression "to our knowledge" or similar
    language, with reference to matters of fact, means that we have examined the
    documents made available to us by Conduct and that we made inquiries of
    officers of Conduct, and, based upon such examination and inquiries, we find
    no reason to believe that the opinions expressed herein, with respect to
    such matters of fact, are incorrect; but we have made no independent factual
    investigation or review with respect to the existence or absence of any such
    facts, other than such inquiries, for the purpose of rendering this opinion,
    and no inference as to our knowledge of the existence or absence of any fact
    should be drawn from our representations of Conduct of the rendering of the
    opinion set forth below.

5.  This opinion is based on the facts existing on the date hereof and of which
    we are aware.

6.  This opinion is subject to and is qualified by limitations and constraints
    of any applicable bankruptcy, insolvency, reorganiztion, moratorium,
    arrangement, fraudulent conveyance or other similar laws now or hereunder in
    effect of general application relating to or affecting the rights of
    creditors generally.

7.  This opinion is subject to and is qualified by limitations and constraints
    and the effect of judicial decisions which may permit the introduction of
    extrinsic evidence to modify the terms or the interpretation of the Exchange
    Agreement or the exhibits thereto. No assurance can be given that future
    legislative, judicial or administrative changes, on either a prospective or
    retroactive basis, would not adversely affect the accuracy of the opinion
    expressed herein.

8.  This opinion is subject to and is qualified by limitations and constraints
    and the enforceability of provisions of the Exchange Agreement or the
    exhibits
<PAGE>

    thereto expressly or by implication waiving broadly or vaguely, rights
    granted by law where such waivers are against public policy.

Based upon and subject to the foregoing, and subject to the qualifications
hereinafter appearing and to any factual matters, documents or events not
disclosed to us and except as set forth in the Exchange Agreement or the
exhibits thereto, and subject to the Closing of the Exchange Agreement, we
advise you that in our opinion:

     1.  Conduct is a corporation validly existing and in good standing under
the laws of Israel.

     2.  Conduct has the corporate power and authority to enter into and perform
the Exchange Agreement, and Conduct has taken all necessary corporate action to
authorize the execution, delivery and performance of the Exchange Agreement.

     3.  The Exchange Agreement has been duly executed and delivered by Conduct
and constitutes the legal, valid and binding obligation of Conduct enforceable
against Conduct in accordance with its terms.

     4.  As of the date hereof, the authorized share capital of Conduct consists
of 14,371,965 Ordinary Shares, and 7,349,285 Preferred Shares, of which
2,096,250 shares are designated Series A Preferred and 5,253,035 shares are
designated Series B Preferred. As of the date hereof, 3,911,875 Ordinary Shares
are issued and outstanding, 2,096,250 Series A Preferred Shares are issued and
outstanding and 4,625,000 Series B Preferred Shares are issued and outstanding.
Conduct has no other capital shares authorized, issued or outstanding. Conduct
has reserved 1,875,000 Ordinary Shares for issuance to employees and consultants
pursuant to its 1998 Share Option Plan, of which options to acquire 739,063
Ordinary Shares have been granted, at the date hereof, of which 8,125 have been
exercised at the date hereof.. Conduct has reserved 628,035 Series B Preferred
Shares for issuance pursuant to outstanding warrants, at the date hereof, and
pursuant to convertible promissory notes. Conduct has not reserved any
additional Series B Preferred Shares for the Noteholders to be able to convert
the interest of the convertible promissory notes, nor for exercise of the
warrants, if the loan secured by such warrants is not repaid before December 16,
1999,

    5.  All outstanding Conduct capital shares are duly authorized, validly
issued, and, to our knowledge, fully paid and non-assessable, and, except as set
forth in the Disclosure Schedule, not subject to preemptive rights created by
statute, the Articles of Association of Conduct or any agreement listed on the
Disclosure Schedule to which Conduct is a party or by which Conduct is bound and
which is governed and construed under the laws of the State of Israel and all
such shares have been issued in compliance with applicable Israeli securities
laws. To our knowledge, except as set forth in the Disclosure Schedule, there
are no options, warrants, calls, rights, commitments or agreements of any
character, written or oral, to which Conduct is a party or by which it is bound
obligating Conduct to issue, deliver, sell, repurchase or redeem, or cause to be
issued, delivered, sold, repurchased or redeemed, any capital shares of Conduct
or
<PAGE>

obligating Conduct to grant, extend, accelerate the vesting of, change the price
of, otherwise amend or enter into any such option, warrant, call, right,
commitment or agreement.

    6.  Except as set forth in the Disclosure Schedule and except for Breaches
which could not reasonably be expected to have a Material Adverse Effect on
Conduct, the execution, delivery and performance of the Exchange Agreement and
the consummation of the transactions therein contemplated do not result in a
breach or violation of any of the terms or provisions of, or constitute a
default under, (a) any provision of the Articles of Association of Conduct, (b)
to our knowledge any judgment, order, decree, statute, law, ordinance, rule or
regulation applicable to Conduct, or its properties or assets and known to us,
or (c) except with respect to any consents required under any Material Contract
listed on the Disclosure Schedule to which Conduct is a party (or by which it is
bound) and which is governed and construed under the laws of the State of
Israel.

    7.  To our knowledge, there is no proceeding or litigation pending or
threatened (a) against Conduct, or (b) which might adversely affect the ability
of Conduct to execute, deliver and perform the Exchange Agreement or to
consummate the transactions contemplated thereby or which challenges or seeks to
prevent, enjoin, alter or delay any such transaction.

    8.  To our knowledge, neither the execution nor delivery of the Exchange
Agreement, the consummation of any of the transactions contemplated thereby nor
compliance with or fulfillment of the terms, conditions and provisions thereof
as of the date hereof will require the approval, consent, authorization or act
of, or the making by Conduct of any declaration, filing or registration with,
any Person, except (i) as set forth in Section 2.22 of the Exchange Agreement,
(ii) such approvals, consents and authorizations as have previously been
obtained, and (iii) such other approvals, consents, authorizations,
registrations, declarations and filings the failure of which to be obtained or
made would not, individually or in the aggregate, have a Material Adverse Effect
on Conduct, materially impair the ability of Conduct to perform its obligations
under the Exchange Agreement or prevent the consummation of any of the
transactions contemplated by the Exchange Agreement.

The opinion set forth (i) is subject to the assumption that Mercury has duly and
validly authorized, executed and delivered the Exchange Agreement and (ii)
assumes that there are no agreements, understandings or negotiations between
Conduct or Subsidiary or any of the Conduct Shareholders and Mercury that would
modify the respective rights of the parties under the Exchange Agreement. We
express no opinion if the transactions contemplated by the Exchange Agreement
are not consummated in accordance with the terms of the Exchange Agreement and
without waiver or breach of any material provision thereof or if all
representations, warranties, statements and assumptions upon which we relied are
not true and accurate at all relevant times. In the event any one of the
statements, representations, warranties or assumptions upon which we have relied
to issue this opinion is
<PAGE>

incorrect, inaccurate, incomplete, breached or ineffective, our opinion might be
adversely affected and might not be relied upon. We express no opinion as to
remedies available to Mercury in respect of material violations or breaches of
the Exchange Agreement by Conduct which are the direct and proximate result of
material violations or breaches of the Exchange Agreement by Mercury.

This opinion is rendered solely to Mercury in connection with the Closing under
the Exchange Agreement and the transactions contemplated thereby. This opinion
is not to be used, relied on, circulated, quoted or otherwise referred to for
any other purpose or by any person who is not a member of the management of
Mercury or any other entity, without our expressed prior written consent. In
particular, this opinion is not to be used, relied on, circulated, quoted or
otherwise referred to in connection with the proposal to treat the transactions
contemplated by the Exchange Agreement as a pooling of interests for accounting
purposes.

This opinion speaks only as of its date, and we disclaim any express or implied
undertaking or obligation to advise of any subsequent change of law or fact
(even though the change may affect the legal analysis, a legal conclusion or an
informational confirmation in this opinion letter).


                                    Very truly yours,

                                    Tida Shamir & Co., Advocates
<PAGE>

                                                            EXHIBIT F-2 TO SHARE
                                                                       AGREEMENT

             LEGAL OPINION OF WILSON SONSINI GOODRICH & ROSATI, PC

All capitalized terms used but not defined herein shall have the meanings given
                    to them in the Share Exchange Agreement

              [Subject to customary qualifications and exceptions]


     1.  Subsidiary is a corporation validly existing and in good standing under
the laws of the State of California.

     2.  Subsidiary has the corporate power and authority to enter into and
perform the Agreement.  Subsidiary has taken all necessary corporate action to
authorize the execution, delivery and performance of the Agreement.

     3.  The Agreement has been duly executed and delivered by Subsidiary and
constitutes the legal, valid and binding obligation of Subsidiary enforceable
against Subsidiary in accordance with its terms.

     4.  The authorized capital stock of Subsidiary consists of 1,000 shares of
authorized Common Stock of which 100 shares are issued and outstanding.
Subsidiary has no other capital shares authorized, issued or outstanding.

     5.  All outstanding shares of Subsidiary capital stock are duly authorized,
validly issued, fully paid and non-assessable, not subject to preemptive rights
created by statute, the Articles of Incorporation or Bylaws of Subsidiary or any
agreement listed on the Disclosure Schedule to which Subsidiary is a party or by
which it is bound.

     6.  The execution, delivery and performance of the Agreement and the
consummation of the transactions therein contemplated do not result in a breach
or violation of any of the terms or provisions of, or constitute a default
under, (a) any provision of the Articles of Incorporation and Bylaws of
Subsidiary, (b) to our knowledge any judgment, order, decree, statute, law,
ordinance, rule or regulation applicable to Subsidiary, or its properties or
assets, or (c) except with respect to any consents required under the Contracts,
any Material Contract listed on the Disclosure Schedule to which Subsidiary is a
party or by which it is bound.

     7. To our knowledge, there is no proceeding or litigation pending or
threatened (a) against Conduct or Subsidiary, or (b) which might adversely
affect the ability of Conduct or Subsidiary to execute, deliver and perform the
Agreement or to consummate the transactions contemplated thereby or which
challenges or seeks to prevent, enjoin, alter or delay any such transaction.
<PAGE>

                                                        EXHIBIT G-1 TO THE SHARE
                                                              EXCHANGE AGREEMENT

        CONDUCT AFFILIATE POOLING AGREEMENT dated as of November 30, 1999,
between MERCURY INTERACTIVE CORPORATION, a Delaware corporation ("Mercury"), and
the undersigned shareholder (the "Shareholder") of CONDUCT LTD., an Israeli
corporation ("Conduct"), who is a signatory hereto.

        Simultaneously with the execution and delivery of this Agreement,
Mercury, Conduct, Conduct Software Technologies, Inc., a California corporation
and wholly-owned subsidiary of Conduct ("Subsidiary"), the shareholders of
Conduct (the "Conduct Shareholders") have entered into a Share Exchange
Agreement (the "Exchange Agreement"), providing for, among other things, the
Conduct Shareholders receiving newly issued shares of common stock of Mercury in
exchange for all outstanding shares of capital stock of Conduct, all outstanding
Convertible Promissory Notes and all outstanding options and warrants to
purchase shares of Conduct stock, in the manner provided in the Exchange
Agreement, after which Conduct will be a wholly-owned subsidiary of Mercury (the
"Exchange"). The transactions contemplated by the Exchange Agreement are
intended to be accounted for as a pooling of interests pursuant to Opinion No.
16 of the Accounting Principals Board. All capitalized terms used but not
defined herein shall have the meanings ascribed thereto in the Exchange
Agreement.

          NOW, THEREFORE, in consideration of the mutual benefits to be derived
from the Exchange and of the mutual covenants contained in this Agreement, the
parties agree as follows:

          1.  Transfer Restrictions.
              ---------------------

          (a)  The Shareholder may be deemed to be an "affiliate" of Conduct
within the meaning of Rule 145 promulgated under the Securities Act of 1933, as
amended (the "Securities Act"), and Accounting Series Release No. 130, as
amended ("Release No. 130"), Accounting Series Release No. 135 and Staff
Accounting Bulletin No. 76 of the Securities and Exchange Commission (the
"Commission"), although nothing contained herein should be construed as an
admission thereof nor as a waiver of any right Shareholder may have to object to
any claim that Shareholder is such an affiliate on or after the date hereof.

          (b)  The Shareholder shall not sell, exchange, transfer, pledge,
distribute, make any gift or otherwise dispose of or grant any option, establish
any "short" or put-equivalent position with respect to or enter into any similar
transaction (through derivatives or otherwise) or otherwise reduce his risk
relative to any Mercury Shares until such time after the Closing as financial
results covering at least 30 days of the combined operations of Conduct and
Mercury after the Closing have been published, within the meaning of Release No.
130, by Mercury in an effective registration statement, Annual Report on Form
10-K, Quarterly Report on Form 10-Q or Current Report on Form 8-K filed with the
Securities and Exchange Commission, or any publicly disclosed quarterly earnings
report or press release or other authorized public disclosure by Mercury that
includes the combined results of operations of Mercury and Conduct. Mercury,
<PAGE>

at its discretion, may cause stop transfer orders to be placed with its transfer
agent with respect to certificates for the Mercury Shares.

          (c)  During the period described in Section 1(b) above, subject to
providing written notice to Mercury and the other restrictions set forth below,
and to the extent permitted under the "pooling of interests" accounting rules
and applicable securities laws, Shareholder will be permitted to sell up to 10%
of Mercury Shares held by Shareholder or to make charitable contributions or
bona fide gifts of the Mercury Shares received by Shareholder, subject to the
same restrictions. Such sales or other transfer shall subject to an aggregate
limitation on sales and other transfers for all affiliates of Conduct and
Mercury of not more than 1% of the number of shares of outstanding Common Stock
of Mercury.  Prior to making any such sale , charitable contributions or gifts,
Shareholder will obtain Mercury's prior written approval.  Shareholder shall
give Mercury not less than five (5) business days notice prior to making any
sales, charitable contributions or gifts as contemplated under this Section
1(c), Shareholder will provide any information reasonably requested by Mercury
or Mercury's accounting firm regarding such sale, charitable contribution or
give, and Shareholder will refrain from making such sales, charitable
contributions or gifts if Shareholder does not obtain Mercury's prior written
approval.  Mercury may withhold such approval if Mercury determines, after
consultation with its accounting firm, that such transaction could preclude the
Exchange from being accounted for as a "pooling of interests."  The 10% of
Mercury Shares shall be calculated in accordance with SEC Accounting Series
Release No. 135 as amended by Staff Accounting Bulletin No. 76.

          (d)  Notwithstanding anything to the contrary contained in this
Agreement, the Shareholder may transfer Mercury Shares to a trust established
for the benefit of the Shareholder and/or for the benefit of one or more members
of the Shareholder's family, or make a bona fide gift of Mercury Shares to one
or more members of the Shareholder's family, provided that in the case of a
transfer or gift pursuant to this Section 1, a transferee of such shares agrees
to be bound by the limitations set forth in this Agreement.

     2.  Beneficial Ownership of Stock. Except as set forth on the last page of
         -----------------------------
this Agreement, Shareholder does not beneficially own or hold voting power over:
(i)  any shares of Mercury common stock or any other equity securities of
Mercury or any options, warrants or other rights to acquire any equity
securities of Mercury;  or (ii) any capital shares of Conduct or any options,
warrants or other rights to acquire any equity securities of Conduct.

     3.  Notices. Any notice or other communication required or permitted to be
         -------
delivered to any party under this Agreement shall be in writing and shall be
deemed properly delivered, given and received when delivered (by hand, by
registered mail, by courier or express delivery service or by facsimile) to the
address or facsimile telephone number set forth beneath the name of such party
below (or to such other address or facsimile telephone number as such party
shall have specified in a written notice given to the other parties hereto):

                                      -2-
<PAGE>

          (a)  if to Mercury :

               Mercury Interactive Corporation
               1325 Borregas Avenue
               Sunnyvale, California 94089
               Attention:  Sharlene Abrams
               Telephone No.: (408) 822-5247
               Facsimile: (408) 822-5507

               with a copy to:
               --------------

               General Counsel Associates LLP
               1891 Landings Drive
               Mountain View, CA 94043
               Attention:  Susan J. Skaer, Esq.
               Telephone:  (650) 428-3900
               Facsimile:  (650) 428-3901


          (b)  if to the Shareholder, to the address set forth below the
               Shareholder's signature on the last page of this Agreement.

          4.  Counterparts.  This Agreement may be executed in one or more
              ------------
counterparts, each of which shall be an original, but all of which together
shall constitute one and the same agreement.

          5.  Entire Agreement.  This Agreement, the Exchange Agreement, the
              ----------------
Exhibits thereto and any other document delivered in connection therewith
contain the entire understanding of the parties hereto in respect of the subject
matter hereof, and supersede all prior negotiations and understandings, oral or
written, between the parties with respect to the subject matter hereof.

          6.  Attorney's Fees.  In the event of any legal action or proceeding
              ---------------
to enforce or interpret the provisions of this Agreement, the prevailing party
shall be entitled to reasonable attorneys' fees, whether or not the proceeding
results in a final judgment.

          7.  Successors and Assigns.  This Agreement shall be enforceable by,
              ----------------------
and shall inure to the benefit of and be binding upon, the parties and their
respective successors and assigns. As used herein, the term "successors and
assigns" shall mean, where the context so permits, heirs, executors,
administrators, trustees and successor trustees and personal and other
representatives.

          8.  Governing Law.  This Agreement shall be governed by and construed
              -------------
in accordance with the laws of the State of California applicable to contracts
made and to be performed therein.

                                      -3-
<PAGE>

          9.  Effect Of Headings.  The section headings herein are for
              ------------------
convenience only and shall not affect the construction or interpretation of this
Agreement.

          10.  Third Party Reliance.  Counsel to and accountants for the parties
               --------------------
shall be entitled to rely upon this Agreement.

          11.  Effectiveness of Agreement.  This Agreement shall become
               --------------------------
effective at the Closing. In the event that the Exchange Agreement shall be
terminated in accordance with Section 9.1 of the Exchange Agreement, this
Agreement shall simultaneously therewith cease and terminate and be of no
further force or effect and no party hereunder shall have any rights or
obligations of any nature whatsoever hereunder.

          IN WITNESS WHEREOF, the parties hereto have caused this Conduct
Affiliate Pooling Agreement to be executed and delivered as of the date first
above written.

                              MERCURY INTERACTIVE CORPORATION.


                              By:
                                 -----------------------------
                                 Name:
                                 Title:


                                     -4-
<PAGE>

                             SIGNATURE PAGE TO THE
                  CONDUCT AFFILIATE POOLING AGREEMENT BETWEEN
                        MERCURY INTERACTIVE CORPORATION
                              AND THE SHAREHOLDER


                              SHAREHOLDER


                              ---------------------------------
                                      (Signature)


                              ---------------------------------
                                      (Print Name)


                              ---------------------------------
                                      (Print Title)*


                              ---------------------------------
                                   (Print Name of Company)*


                              ---------------------------------
                                     (Print Address)


                              ---------------------------------
                                    (Print Fax Number)

_____________________________
*  Leave blank if individual.

Number of shares of Mercury common stock beneficially owned by Shareholder:

______________________________________________________

Number of shares of Mercury common stock subject to options beneficially owned
by Shareholder:   ________________________________________

Number of shares of Conduct ordinary and/or preferred shares beneficially owned
by Shareholder:  ____________________________________________

Number of shares of Conduct ordinary shares subject to options beneficially
owned
by Shareholder: __________________________________________


                                      -5-
<PAGE>

                                                        EXHIBIT G-2 TO THE SHARE
                                                              EXCHANGE AGREEMENT

          MERCURY AFFILIATE POOLING AGREEMENT dated as of November 30, 1999,
between MERCURY INTERACTIVE CORPORATION., a Delaware corporation ("Mercury"),
and the undersigned shareholder (the "Shareholder") of MERCURY who is a
signatory hereto.

          Simultaneously with the execution and delivery of this Agreement,
Mercury, Conduct, Conduct Software Technologies, Inc., a California corporation
and wholly-owned subsidiary of Conduct ("Subsidiary"), the shareholders of
Conduct (the "Conduct Shareholders") have entered into a Share Exchange
Agreement (the "Exchange Agreement"), providing for, among other things, the
Conduct Shareholders receiving newly issued shares of common stock of Mercury in
exchange for all outstanding shares of capital stock of Conduct, all outstanding
Convertible Promissory Notes  and all outstanding options and warrants to
purchase shares of Conduct stock, in the manner provided in the Exchange
Agreement, after which Conduct will be a wholly-owned subsidiary of Mercury (the
"Exchange"). The transactions contemplated by the Exchange Agreement are
intended to be accounted for as a pooling of interests pursuant to Opinion No.
16 of the Accounting Principals Board. All capitalized terms used but not
defined herein shall have the meanings ascribed thereto in the Exchange
Agreement.

          NOW, THEREFORE, in consideration of the mutual benefits to be derived
from the Exchange and of the mutual covenants contained in this Agreement, the
parties agree as follows:

          1.  Transfer Restrictions.
              ---------------------

          (a) The Shareholder may be deemed to be an "affiliate" of Mercury
within the meaning of Rule 145 promulgated under the Securities Act of 1933, as
amended (the "Securities Act"), and Accounting Series Release No. 130, as
amended ("Release No. 130"), Accounting Series Release No. 135 and Staff
Accounting Bulletin No. 76 of the Securities and Exchange Commission (the
"Commission"), although nothing contained herein should be construed as an
admission thereof nor as a waiver of any right Shareholder may have to object to
any claim that Shareholder is such an affiliate on or after the date hereof.

          (b) The Shareholder has not sold, exchanged, transferred, pledged,
disposed of or otherwise reduced his risk, relative to any shares of or options
to purchase shares of common stock, $.002 par value, of Mercury (the "Mercury
Shares") beneficially owned by the Shareholder during the 30-day period prior to
the Closing (as defined in the Exchange Agreement).

          (c) The Shareholder shall not sell, exchange, transfer, pledge,
distribute, make any gift or otherwise dispose of or grant any option, establish
any "short" or put-equivalent position with respect to or enter into any similar
transaction (through derivatives or otherwise) or dispose of or otherwise reduce
his risk relative to any Mercury Shares until such time after the
<PAGE>

Closing as financial results covering at least 30 days of the combined
operations of Conduct and Mercury after the Closing have been published, within
the meaning of Release No. 130, by Mercury in an effective registration
statement, Annual Report on Form 10-K, Quarterly Report on Form 10-Q or Current
Report on Form 8-K filed with the Securities and Exchange Commission, or any
publicly disclosed quarterly earnings report or press release or other
authorized public disclosure by Mercury that includes the combined results of
operations of Mercury and Conduct. Mercury, at its discretion, may cause stop
transfer orders to be placed with its transfer agent with respect to
certificates for the Mercury Shares. Notwithstanding the foregoing, Shareholder
will not be prohibited by the foregoing from selling or disposing of shares so
long as such sale or disposition is in accordance with the "de minimis" test set
forth in SEC Staff Accounting Bulletin No. 76.

          (d) During the period described in Section 1(c) above, subject to
providing written notice to Mercury and the other restrictions set forth below,
and to the extent permitted under the "pooling of interests" accounting rules
and applicable securities laws, Shareholder will be permitted to sell up to 10%
of Mercury Shares held by Shareholder or to make charitable contributions or
bona fide gifts of the Mercury Shares owned by Shareholder, subject to the same
restrictions. Such sales or other transfer shall subject to an aggregate
limitation on sales and other transfers for all affiliates of Conduct and
Mercury of not more than 1% of the number of shares of outstanding Common Stock
of Mercury.  Prior to making any such sale, charitable contributions or gifts,
Shareholder will be required to obtain Mercury's prior written approval.
Shareholder shall give Mercury not less than five (5) business days notice prior
to making any sales, charitable contributions or gifts as contemplated under
this Section 1(d), Shareholder will provide any information reasonably requested
by Mercury or Mercury's accounting firm regarding such sale, charitable
contribution or give, and Shareholder will refrain from making such sales,
charitable contributions or gifts if Shareholder does not obtain Mercury's prior
written approval.  Mercury may withhold such approval it it determines, after
consultation with its accounting firm, that such transaction could preclude the
Exchange from being accounted for as a "pooling of interests."  The 10% of
Mercury Shares shall be calculated in accordance with SEC Accounting Series
Release No. 135 as amended by Staff Accounting Bulletin No. 76.

          (e) Notwithstanding anything to the contrary contained in this
Agreement, the Shareholder may transfer Mercury Shares to a trust established
for the benefit of the Shareholder and/or for the benefit of one or more members
of the Shareholder's family, or make a bona fide gift of Mercury Shares to one
or more members of the Shareholder's family, provided that in the case of a
transfer or gift pursuant to this Section 1, a transferee of such shares agrees
to be bound by the limitations set forth in this Agreement.

     2.  Beneficial Ownership of Stock. Except as set forth on the last page of
         -----------------------------
this Agreement, Shareholder does not beneficially own or hold voting power over
any shares of Mercury common stock or any other equity securities of Mercury or
any options, warrants or other rights to acquire any equity securities of
Mercury.

     3.  Notices. Any notice or other communication required or permitted to be
         -------
delivered to any party under this Agreement shall be in writing and shall be
deemed properly delivered,

                                      -2-
<PAGE>

given and received when delivered (by hand, by registered mail, by courier or
express delivery service or by facsimile) to the address or facsimile telephone
number set forth beneath the name of such party below (or to such other address
or facsimile telephone number as such party shall have specified in a written
notice given to the other parties hereto):

          (a)  if to Mercury :

               Mercury Interactive  Corporation
               1325 Borregas Avenue
               Sunnyvale, California  94089
               Attention:  Sharlene Abrams
               Telephone No.: (408) 822-5247
               Facsimile: (408) 822-5507

               with a copy to:
               --------------

               General Counsel Associates LLP
               1891 Landings Drive
               Mountain View, CA 94043
               Attention:  Susan J. Skaer, Esq.
               Telephone:  (650) 428-3900
               Facsimile:  (650) 428-3901


          (b)  if to the Shareholder, to the address set forth below the
               Shareholder's signature on the last page of this Agreement.

          4.  Counterparts.  This Agreement may be executed in one or more
              ------------
counterparts, each of which shall be an original, but all of which together
shall constitute one and the same agreement.

          5.  Entire Agreement.  This Agreement, the Exchange Agreement, the
              ----------------
Exhibits thereto and any other document delivered in connection therewith
contain the entire understanding of the parties hereto in respect of the subject
matter hereof, and supersede all prior negotiations and understandings, oral or
written, between the parties with respect to the subject matter hereof.

          6.  Attorney's Fees.  In the event of any legal action or proceeding
              ---------------
to enforce or interpret the provisions of this Agreement, the prevailing party
shall be entitled to reasonable attorneys' fees, whether or not the proceeding
results in a final judgment.

          7.  Successors and Assigns.  This Agreement shall be enforceable by,
              ----------------------
and shall inure to the benefit of and be binding upon, the parties and their
respective successors and assigns. As used herein, the term "successors and
assigns" shall mean, where the context so

                                      -3-
<PAGE>

permits, heirs, executors, administrators, trustees and successor trustees and
personal and other representatives.

          8.  Governing Law.  This Agreement shall be governed by and construed
              -------------
in accordance with the laws of the State of California applicable to contracts
made and to be performed therein.

          9.  Effect Of Headings.  The section headings herein are for
              ------------------
convenience only and shall not affect the construction or interpretation of this
Agreement.

          10.  Third Party Reliance.  Counsel to and accountants for the parties
               --------------------
shall be entitled to rely upon this Agreement.

          11.  Effectiveness of Agreement.  This Agreement shall become
               --------------------------
effective at the Closing. In the event that the Exchange Agreement shall be
terminated in accordance with Section 9.1 of the Exchange Agreement, this
Agreement shall simultaneously therewith cease and terminate and be of no
further force or effect and no party hereunder shall have any rights or
obligations of any nature whatsoever hereunder.

          IN WITNESS WHEREOF, the parties hereto have caused this Mercury
Affiliate Pooling Agreement to be executed and delivered as of the date first
above written.

                              MERCURY INTERACTIVE CORPORATION.


                              By:
                                 -------------------------------------
                                 Name:
                                 Title:


                                      -4-
<PAGE>

                             SIGNATURE PAGE TO THE
                  MERCURY AFFILIATE POOLING AGREEMENT BETWEEN
                        MERCURY INTERACTIVE CORPORATION
                              AND THE SHAREHOLDER


                              SHAREHOLDER


                              --------------------------------------------------
                                                 (Signature)

                              --------------------------------------------------
                                                 (Print Name)

                              --------------------------------------------------
                                                 (Print Title)*

                              --------------------------------------------------
                                                 (Print Name of Company)*

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

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

                              --------------------------------------------------
                                                 (Print Address)

                              --------------------------------------------------
                                                 (Print Fax Number)

_______________________
*   Leave blank if individual.


Number of shares of Mercury common stock beneficially owned by Shareholder:

______________________________________________________

Number of shares of Mercury common stock subject to options beneficially owned
by Shareholder:   ________________________________________


                                      -5-
<PAGE>

                                                              EXHIBIT H TO SHARE
                                                              EXCHANGE AGREEMENT


                         REGISTRATION RIGHTS AGREEMENT

     This REGISTRATION RIGHTS AGREEMENT, is made as of November 30, 1999, (the
"Agreement"), by and among, MERCURY INTERACTIVE CORPORATION a Delaware
Corporation ("Mercury") and the Conduct Shareholders (as listed on Schedule A
attached hereto) of Conduct Ltd., an Israeli corporation ("Conduct").


     WHEREAS, Mercury, Conduct, Conduct Software Technologies, Inc., a
California corporation and wholly-owned subsidiary of Conduct, and the Conduct
Shareholders have entered into a Share Exchange Agreement, dated as of November
24, 1999 (the "Exchange Agreement"). Upon the consummation of the transactions
contemplated by the Exchange Agreement, the Conduct Shareholders are to receive
shares of common stock of Mercury ("Mercury Stock") in exchange for their shares
of capital stock of Conduct.  Accordingly, it is contemplated that Conduct
Shareholder will receive shares of Mercury Stock at the Closing.  Mercury Stock
to be so issued has not been registered under the Securities Act of 1933, as
amended ("Securities Act") in reliance upon the exemption therefrom contained in
Section 4(2) of the Securities Act.

     In consideration of the premises and the mutual representations, warranties
and covenants herein contained, the parties hereto have agreed and do hereby
agree as follows:

     1.   Registration Rights.
          -------------------

          1.1  Certain Definitions.  As used in this Section 1, the following
               -------------------
terms shall have the following respective meanings:

               (a) The term "Commission" means the Securities and Exchange
Commission;

               (b) The term "Exchange Act" shall mean the Securities Exchange
Act of 1934, as amended, or any similar federal statute and the rules and
regulations of the Commission thereunder, all as the same shall be in effect at
the time.

               (c) The term "Form S-3" will refer to the registration statement
of the same name (including successors thereto) prepared for filing with the
Commission;

               (d) The term "Holder" means any holder of outstanding Registrable
Securities who acquired such Registrable Securities in a transaction or series
of transactions not involving any public offering, including any Permitted
Transferee of the Conduct Shareholders as defined in Section 1.6 of this
Agreement;
<PAGE>

               (e) The terms "register", "registered" and "registration" refer
to a registration effected by preparing and filing a registration statement in
compliance with the Securities Act and the declaration or ordering of the
effectiveness of such registration statement;

               (f) The term "Registrable Securities" means (i) all shares of
Mercury Stock issued to the Conduct Shareholders pursuant to the Exchange
Agreement and (ii) any other shares of capital stock issued as (or issuable upon
the exercise or conversion of any warrant, right or other security that is
issued as) a dividend, stock split, recapitalization or other distribution with
respect to, or in exchange for or replacement of, any of Mercury's Registrable
Securities; provided, however, that such shares of Common Stock referred to in
            --------  -------
(i) and (ii) above shall only be treated as Registrable Securities if and so
long as they have not been (A) sold to or through a broker or dealer or
underwriter in a public distribution or a public securities transaction, or (B)
sold in a transaction exempt from the registration and prospectus delivery
requirements of the Securities Act under Section 4(1) thereof so that all
transfer restrictions and restrictive legends with respect thereto are removed
upon the consummation of such sale;

               (b) The term "Restricted Securities" means the securities of
                             ---------------------
Mercury Stock being issued in the transactions contemplated by the Exchange
Agreement; and

               (c) The term "Securities Act" means the Securities Act of 1933,
as amended.

          1.2  Registration on Form S-3.  As promptly as practicable after (and
               ------------------------
in any event within 45 days of)the Closing (as defined in the Exchange
Agreement), Mercury will file a registration statement to register (whether or
not required by law to do so) the Registrable Securities, under the Securities
Act and will use its best efforts to have such registration statement become
effective as promptly as practicable after it is filed and to keep such
registration statement effective for the lesser of one year or until all of the
Holders have informed Mercury in writing that the distribution of their
Registrable Securities has been completed; provided, that, each of the Conduct
                                           --------  ----
Shareholders agree, by acquisition of the Mercury Stock, that, upon receipt of
any notice from Mercury of (i) the happening of any event which makes any
statements made in the registration statement or related prospectuses filed
pursuant to this Section 1, or any documents incorporated or deemed to be
incorporated therein by reference, untrue in any material respect or which
requires the making of any changes in such registration statement or prospectus
so that, in the case of such registration statement it will not contain any
untrue statement of a material fact or omit to state any material fact required
to be stated therein or necessary to make, the statements therein not
misleading, and that in the case of the prospectus, it will not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading or (ii) that, in the
reasonable and good faith judgment of Mercury's Board of Directors, it is
advisable to
<PAGE>

suspend use of the prospectus for a discrete period of time due to undisclosed
material pending corporate developments, the Conduct Shareholders will forthwith
discontinue, for a period not to exceed thirty (30) days, disposition of such
Mercury Stock covered by such registration statement or prospectus until the
Conduct Shareholders are advised in writing by Mercury that use of the
applicable prospectus may be resumed, and have received copies of any additional
or supplemental filings that are incorporated or deemed to be incorporated by
reference in such prospectus. Mercury shall use all reasonable efforts to insure
that the use of the prospectus may be resumed as soon as practicable, and in any
event shall not be entitled to require the Conduct Shareholders to suspend use
of any prospectus for more than two non-consecutive thirty (30) day periods in
any twelve month period. Mercury hereby represents that it is presently eligible
to utilize Form S-3 for the purpose of registering the resale of Registrable
Securities. Mercury agrees that it will:

          (a) As promptly as practicable after it is necessary to do so, prepare
and file with the Commission such amendments and supplements to such
registration statement and the prospectus used in connection with such
registration statement, and use its best efforts to cause each such amendment to
become effective as promptly as practicable after it is filed, as may be
necessary to comply with the provisions of the Securities Act with respect to
the disposition of all securities covered by such registration statement.

          (b) A reasonable number of days prior to filing any registration
statement, prospectus or amendment or supplement thereto with the Commission,
furnish a copy of such registration statement, prospectus or amendment or
supplements to each Holder participating in such registration for such Holder's
review.

          (c) Furnish to each Holder participating in the registration such
number of prospectuses, preliminary prospectuses, final prospectuses and such
other documents as such Holder may reasonably request in order to facilitate the
public sale or other disposition of the Registrable Securities being sold by
such Holder.

          (d) Notify each Holder, (A) of the time when such registration
statement has become effective, and (B) at any time when a prospectus is
required to be delivered under the Securities Act in connection with such
registration statement (1) of the happening of any event as a result of which
such registration statement, such prospectus, any prospectus supplement or any
document incorporated by reference in any of the foregoing contains an untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary to make the statements therein, in light of the
circumstances under which they are made, not misleading or (2) that Mercury is
in possession of material information that it deems advisable not to disclose in
a registration statement.

          (e) Advise each Holder promptly after Mercury shall receive notice or
obtain knowledge thereof, of the issuance of any stop order by the Commission
suspending the effectiveness of such registration statement or the initiation or
threatening of any proceeding for such purpose and promptly use its reasonable
efforts to prevent the
<PAGE>

issuance of any stop order or to obtain its withdrawal (at the earliest
practicable date) if such stop order should be issued.

          (f) Apply for listing and use its best efforts to list the Registrable
Securities being registered on any national securities exchange on which a class
of Mercury's equity securities is listed or, if Mercury does not have a class of
equity securities listed on a national securities exchange, apply for
qualification and use its best efforts to qualify the Registrable Securities
being registered for inclusion on the automated quotation system of the National
Association of Securities Dealers, Inc.

          (g) Use its best efforts to file with the Commission in a timely
manner all reports and other documents required of Mercury under the Securities
Act and the Securities Exchange Act of 1934, as amended.

          (h) Cooperate when requested by Holder in the qualification of the
Mercury Stock under the blue sky laws of such jurisdiction as Holder may
designate and during the period in which the Form S-3 is effective, in keeping
such qualifications in good standing under said blue sky laws, provided,
                                                               --------
however, that Mercury shall not be obligated to file any general consent to
- -------
service of process or to qualify as a foreign corporation in any jurisdiction in
which it is not so qualified.

    1.3   Registration and Selling Expenses.
          ---------------------------------

          (a) For purposes of this Section 1, "Registration Expenses" means all
expenses incurred in connection with any registration, qualification or
compliance pursuant to this Section 1, including, without limitation, all
registration, filing and qualification fees, printing expenses, fees and
disbursements of counsel for Mercury, expenses of any special audits incidental
to or required by such registration and all fees and disbursements of one
counsel to the selling Holder in connection therewith.  "Selling Expenses" means
all underwriting discounts and selling commissions applicable to the sale of
Registrable Securities.

          (b) All Registration Expenses incurred in connection with any
registration proceedings pursuant to Section 1.2 will be borne by Mercury.

    1.4   Information by Holder.  The Holder of Registrable Securities
          ---------------------
included in any registration will furnish to Mercury such information regarding
such Holder and the distribution proposed by such Holder as Mercury may
reasonably request in writing in connection with the  registration referred to
in this Section 1.  In connection with the preparation and filing of the
registration statement under the Securities Act pursuant to this Agreement,
Mercury will give Holder and its counsel and accountants, the opportunity to
participate in the preparation of such registration statement, each prospectus
included therein or filed with the Commission, and each amendment thereof or
supplement thereto, and will give each of them such access to its books and
records and such opportunities to discuss the business of Mercury with its
officers and the independent public accountants who have certified its financial
statements as shall be
<PAGE>

necessary, in the opinion of such Holder's counsel, to conduct a reasonable
investigation within the meaning of the Securities Act.

          1.5  Transfer of Registration Rights.  The registration rights granted
               -------------------------------
to Holder under this Section 1 are not transferable to any other person or
entity, except by operation of law or to a family member of Holder or to a trust
for the benefit of Holder or a family member of Holder or to a partner or other
affiliate of Holder (a "Permitted Transferee").

          1.6  Indemnification.
               ---------------

          (a) To the extent permitted by law, Mercury will, and does hereby
undertake to, indemnify and hold harmless each Holder, each of its heirs,
successors and assigns, any underwriter, and each person who controls Holder or
any underwriter within the meaning of Section 15 of the Securities Act, against
all expenses, claims, losses, damages and liabilities (or actions in respect
thereof), including settlement of any litigation, commenced or threatened, to
which they may become subject under the Securities Act, the Exchange Act, or
other federal or state law, arising out of or based on any untrue statement (or
alleged untrue statement) of a material fact contained in any registration
statement, prospectus (preliminary or final), or other document or amendments
thereto, or arising out of or based on any omission (or alleged omission) to
state therein a material fact required to be stated therein or necessary to make
the statements therein, in light of the circumstances in which they were made,
not misleading, or arising out of or any violation by Mercury of any federal,
state or common law rule or regulation applicable to Mercury and relating to
action or inaction required of Mercury in connection with any such registration,
qualification or compliance, and will reimburse each such Holder, each of its
officers, directors and partners, and each person controlling such Holder, each
such underwriter and each person who controls any such underwriter, for any
legal and any other expenses reasonably incurred in connection with
investigating, preparing or defending any such claim, loss, damage, liability or
action, provided that Mercury will not be liable in any such case to the extent
that any such claim, loss, damage, liability or expense arises out of or is
based on any untrue statement or omission or alleged untrue statement or
omission, made in reliance upon and in conformity with written information
furnished to Mercury by an instrument executed by such Holder or underwriter
expressly for use in connection with such registration.

          (b) To the extent permitted by law, each Holder will severally (but
not jointly), indemnify and hold harmless Mercury, each of its directors and
officers, agents and employees, each underwriter, if any, of Mercury's
securities covered by such a registration statement, each person who controls
Mercury or such underwriter within the meaning of Section 15 of the Securities
Act, and each other such Holder, each of its successors and assigns, its
officers, directors and partners and each person controlling such Holder within
the meaning of Section 15 of the Securities Act, against all claims, losses,
damages and liabilities (or actions in respect thereof to which they may become
subject) arising out of or based on any untrue statement (or alleged untrue
statement) of a material fact contained in any such registration statement,
prospectus, offering circular or
<PAGE>

other document, or amendments thereto, or any omission (or alleged omission) to
state therein a material fact required to be stated therein in light of the
circumstances in which they were made, or necessary to make the statements
therein, not misleading, and will reimburse Mercury, such Holders, such
directors, officers, persons, underwriters or control persons for any legal or
any other expenses reasonably incurred in connection with investigating or
defending any such claim, loss, damage, liability or action, in each case to the
extent, but only to the extent, that such untrue statement (or alleged untrue
statement) or omission (or alleged omission) is made in such registration
statement, prospectus, or other document in reliance upon and in conformity with
written information furnished to Mercury by an instrument executed by such
Holder expressly for use in connection with such registration; provided,
however, that the obligations of such Holders hereunder shall be limited to an
amount equal to the proceeds to each such Holder of Registrable Securities, from
the sale of such Registrable Securities as contemplated herein.

          (c) Promptly after receipt by an indemnified party under this Section
1.7 of notice of the commencement of any action, such indemnified party will, if
a claim in respect thereof is to be made against the indemnifying party under
this Section 1.7, notify the indemnifying party of the commencement thereof; but
the omission so to notify the indemnifying party will not relieve it from any
liability which it may have to any indemnified party otherwise than under this
Section 1.7. In case any such action is brought against any indemnified party,
and it notifies the indemnifying party of the commencement thereof, the
indemnifying party will be entitled to participate therein and, to the extent
that it may wish, jointly with any other indemnifying party similarly notified,
to assume the defense thereof, with counsel satisfactory to such indemnified
party; provided, however, that if the defendants in any such action include both
       -----------------
the indemnified party and the indemnifying party and the indemnified party shall
have reasonably concluded that there may be one or more legal defenses available
to it and/or other indemnified parties which are different from or additional to
those available to the indemnifying party, the indemnifying party shall not have
the right to direct the defense of such action on behalf of such indemnified
party or parties and such indemnified party or parties shall have the right to
select separate counsel to defend such action on behalf of such indemnified
party or parties.  After notice from the indemnifying party to such indemnified
party of its election so to assume the defense thereof and approval by such
indemnified party of counsel appointed to defend such action, the indemnifying
party will not be liable to such indemnified party under this Section 1.7 for
any legal or other expenses, other than reasonable costs of investigation,
subsequently incurred by such indemnified party in connection with the defense
thereof, unless (i) the named parties to any such action include both the
indemnified party and the indemnifying party and the representation of both
parties by the same counsel would be inappropriate due to a conflict of interest
between or (ii) the indemnifying party does not promptly retain counsel
satisfactory to the indemnified party or (iii) the indemnifying party has
authorized the employment of counsel for the indemnified party at the expense of
the indemnifying party. It is understood, however, that in connection with such
action the indemnifying party shall not be liable for the expenses of more than
one separate counsel (in addition to local counsel) in any one action or
separate but substantially similar
<PAGE>

actions in the same jurisdiction arising out of the same general allegations or
circumstances unless the indemnified parties in good faith are advised by their
counsel that there is an actual or potential conflict of interest among the
indemnified parties. After such notice from the indemnifying party to such
indemnified party, the indemnifying party will not be liable for the costs and
expenses of any settlement of such action effected by such indemnified party
without the consent of the indemnifying party.

          (d) In circumstances in which the indemnity agreement provided for in
the preceding paragraphs of this Section 1.7 is unavailable or insufficient, for
any reason, to hold harmless an indemnified party in respect of any losses,
claims, damages or liabilities (or actions in respect thereof), each
indemnifying party, in order to provide for just and equitable contribution,
shall contribute to the amount paid or payable by such indemnified party as a
result of such losses, claims, damages or liabilities (or actions in respect
thereof) in such proportion as is appropriate to reflect (i) the relative
benefits received by the indemnifying party or parties on the one hand and the
indemnified party on the other from the offering of the Registrable Securities
or (ii) if the allocation provided by the foregoing clause (i) is not permitted
by applicable law, not only such relative benefits but also the relative fault
of the indemnifying party or parties on the one hand and the indemnified party
on the other in connection with the statements or omissions or alleged
statements or omissions that resulted in such losses, claims, damages or
liabilities (or actions in respect thereof), as well as any other relevant
equitable considerations.  The relative fault of the parties shall be determined
by reference to, among other things, whether the untrue or alleged untrue
statement of a material fact or the omission or alleged omission to state a
material fact relates to information supplied by the indemnifying party or the
indemnified party, the parties' relative intents, knowledge, access to
information and opportunity to correct or prevent such statement or omission,
and any other equitable considerations appropriate in the circumstances.  The
liability of each Holder under this Section 1.7 shall not exceed an amount equal
to the net proceeds received by such Holder from the sale of Registrable
Securities pursuant to the registration statement.

          1.7  Amendments and Waivers.  This Agreement may be amended, modified,
               ----------------------
supplemented or waived only upon the written agreement of the party against whom
enforcement of such amendment, modification, supplement or waiver is sought.

          1.8  Rule 144 Reporting.  With a view to making available the benefits
               ------------------
of certain rules and regulations of the Commission which may at any time permit
the sale of the Restricted Securities to the public without registration,
Mercury agrees to use all reasonable efforts to:

          (a) Make and keep public information available, as those terms are
understood and defined in Rule 144 under the Securities Act, at all times;

          (b) File with the Commission in a timely manner all reports and other
documents required of Mercury under the Securities Act and the Exchange Act; and
<PAGE>

          (c) Furnish to the Holder, so long as Holder owns any Registrable
Securities, forthwith upon request a written statement as to its compliance with
the applicable requirements of said Rule 144 and the Securities Act and the
Securities Exchange Act; Mercury shall provide forthwith upon written request a
copy of the most recent annual or quarterly report of Mercury, and such other
reports and documents of Mercury as Holder may reasonably request in availing
itself of any rule or regulation of the Commission allowing Holder to sell any
such securities without registration.

          1.9  Notices.  Except as otherwise provided in this Agreement, any
               -------
notice or other communication required or permitted to be delivered to any party
under this Agreement shall be in writing and shall be deemed properly delivered,
given and received when delivered (by hand, by registered mail, by courier or
express delivery service or by facsimile) to the address or facsimile telephone
number set forth beneath the name of such party below (or to such other address
or facsimile telephone number as such party shall have specified in a written
notice given to the other parties hereto):

          (a)  if to Mercury :

               Mercury Interactive Corporation
               1325 Borregas Avenue
               Sunnyvale, California  94089
               Attention:  Sharlene Abrams
               Telephone No.: (408) 822-5247
               Facsimile: (408) 822-5507

               with a copy to:
               --------------

               General Counsel Associates LLP
               1891 Landings Drive
               Mountain View, CA 94043
               Attention:  Susan J. Skaer, Esq.
               Telephone:  (650) 428-3900
               Facsimile:  (650) 428-3901

          (b)  If to the Conduct Shareholders:

               To the address set forth beside each such Conduct Shareholder's
               signature on the signature page attached hereto.


               with copies to:
               --------------

               Conduct, Ltd.
               c/o Conduct Software Technologies, Inc.
               2350 Mission College Blvd., Suite 705
               Santa Clara, CA 95054
               Attention: David Barzilai
<PAGE>

               Telephone: 408-982-8200
               Facsimile:  408-982-8202

               Wilson Sonsini Goodrich & Rosati, Professional Corporation
               650 Page Mill Road
               Palo Alto, CA  94304-1050
               Attention:  Neil J. Wolff , Esq.
                           Jon P. Layman, Esq.
               Telephone: (650) 493-9300
               Facsimile: (650) 493-6811

All such notices, requests, consents and other communications shall be deemed to
have been given when received.

          1.10  Miscellaneous.
                --------------

          (a) Subject to the foregoing, this Agreement shall be binding upon and
inure to the benefit of and be enforceable by the parties hereto and the
respective successors, personal representatives and assigns of the parties
hereto, whether so expressed or not.  If any person or entity shall acquire
Registrable Securities from any Holder, in any manner, whether by operation of
law or otherwise, such transferee shall promptly notify Mercury and such
Registrable Securities acquired from such Holder shall be held subject to all of
the terms of this Agreement, and by taking and holding such Registrable
Securities such person shall be entitled to receive the benefits of and be
conclusively deemed to have agreed to be bound by and to perform all of the
terms and provisions of this Agreement.  If the Mercury shall so request, any
such successor or assign shall agree in writing to acquire and hold the
Registrable Securities acquired from such Holder subject to all of the terms
hereof.

          (b) This Agreement (with the documents referred to herein or delivered
pursuant hereto) embodies the entire agreement and understanding between the
parties hereto and supersedes all prior agreements and understandings relating
to the subject matter hereof.

          (c) This Agreement shall be construed and enforced in accordance with
and governed by the laws of the State of California without giving effect to the
conflicts of law principles thereof.

          (d) The headings in this Agreement are for convenience of reference
only and shall not limit or otherwise affect the meaning hereof.  All section
references are to this Agreement unless otherwise expressly provided.

          (e) This Agreement may be executed in any number of counterparts, each
of which shall be an original, but all of which together shall constitute one
instrument.
<PAGE>

          (f) Any term or provision of this Agreement which is invalid or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such invalidity or unenforceability without rendering invalid
or unenforceable the remaining terms and provisions of this Agreement or
affecting the validity or enforceability of any of the terms or provisions of
this Agreement in any other jurisdiction.

          (g) The parties hereto acknowledge that there would be no adequate
remedy at law if any party fails to perform any of its obligations hereunder,
and accordingly agree that each party, in addition to any other remedy to which
it may be entitled at law or in equity, shall be entitled to injunctive relief,
including specific performance, to enforce such obligations without the posting
of any bond, and, if any action should be brought in equity to enforce any of
the provisions of this Agreement, none of the parties hereto shall raise the
defense that there is an adequate remedy at law.

          (h) Each party hereto shall do and perform or cause to be done and
performed all such further acts and things and shall execute and deliver all
such other agreements, certificates, instruments, and documents as any other
party hereto reasonably may request in order to carry out the intent and
accomplish the purposes of this Agreement and the consummation of the
transactions contemplated hereby.

          (i) If any action or proceeding relating to this Agreement or the
enforcement of any provision of this Agreement is brought against any party
hereto, the prevailing party shall be entitled to recover reasonable attorneys'
fees, costs and disbursements (in addition to any other relief to which the
prevailing party may be entitled).
<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the
date set forth above.


                           Mercury Interactive Corporation

                           By:
                              -----------------------------------------
                              Name:
                                   ------------------------------------
                              Title:
                                    -----------------------------------
<PAGE>

                             SIGNATURE PAGE TO THE
                         REGISTRATION RIGHTS AGREEMENT
                 AMONG MERCURY INTERACTIVE CORPORATION AND THE
                          SHAREHOLDERS OF CONDUCT LTD.



Conduct Shareholder:       ---------------------------------------------
                           Signature

                           By:
                              ------------------------------------------

                           Title:
                                 ---------------------------------------

                           Print or Type Name:
                                              --------------------------

                           Address:
                                   -------------------------------------

                                   -------------------------------------
<PAGE>

                                   SCHEDULE A

                           CONDUCT LTD. SHAREHOLDERS

- --------------------------------------------------------------------------------
      Name of Conduct Shareholder               No. of Shares of Mercury Stock
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

                                                              EXHIBIT I TO SHARE
                                                              EXCHANGE AGREEMENT

                LEGAL OPINION OF GENERAL COUNSEL ASSOCIATES LLP

[All capitalized terms used but not defined herein shall have the meanings given
                    to them in the Share Exchange Agreement]

              [Subject to customary qualifications and exceptions]

     1.  Mercury is a corporation duly organized, validly existing and in good
standing under the laws of the State of Delaware.

     2.  Mercury has the corporate power and authority to enter into and perform
the Exchange Agreement, and has taken all necessary corporate action to
authorize the execution, delivery and performance of the Exchange Agreement.

     3.  The Exchange Agreement has been duly executed and delivered by Mercury
and constitutes the legal, valid and binding obligation of Mercury enforceable
Mercury in accordance with its terms.

     4.  The execution, delivery and performance of the Exchange Agreement by
Mercury and the consummation of the transactions therein contemplated do not
result in a breach or violation of any of the terms or provisions of, or
constitute a default under, (a) any provision of Mercury's Restated Certificate
of Incorporation or Amended and Restated By-laws, or (b) to our knowledge any
judgment, order, decree, statute, law, ordinance, rule or regulation applicable
to Mercury, or its properties or assets.
<PAGE>

                                   EXHIBIT J

For:  The Research Committee
      The Office of the Chief Scientist
      P.O.B. 2197
      Jerusalem
      ---------

RELATING TO PROJECT FILE NO. 21036

SUBJECT OF RESEARCH SiteRunner (Coyote) - Network Management Software
                    -------------------------------------------------

                                  Undertaking
                                  -----------

We, the undersigned of      Mercury Interactive Corporation        ; having by
                       --------------------------------------------
an agreement on                 committed to buy all the outstanding shares of
               -----------------
Conduct Ltd. in return for shares in Mercury Interactive Corp.
- -------------                        ------------------------

Recognizing that Conduct Ltd. Research and Development Project, as referred
                 ------------
to above, is currently being financially supported by the Government of the
State of Israel through the Office of the Chief Scientist under The
Encouragement of Research and Development in Industry Law 5744-1984
(hereinafter: the law) and the regulations pursuant to the law.

Recognizing that the law places strict constraints on the transfer of know-how
and/or production rights, making all such transfer subject to the absolute
discretion of the Research Committee of the Office of the Chief Scientist,
acting in accordance with the aims of the law, and requiring that any such
transfer receive the prior written approval of the Research Committee.

HEREBY UNDERTAKE,

To observe strictly all the requirements of the law as well as the regulations
issued pursuant to the law as applied to Conduct Ltd. and as directed by
                                         ------------
the Research Committee, in particular those requirements stipulated under
Section 19 of the law relating to the prohibition on the transfer of know-how
and/or production rights.


November 10, 1999                      /s/
- -----------------                     -------------------------------
      Date                            Signature of Authorized Company
                                      Representative and Company Seal
<PAGE>

November 30, 1999


Conduct Ltd.
2 Habarzel Street
Tel Aviv, 69710, Israel


Re:  Share Exchange Agreement dated as of November 24, 1999, among Mercury
     ---------------------------------------------------------------------
     Interactive Corporation, Conduct Ltd., Conduct Software Technologies, Inc.
     --------------------------------------------------------------------------
     and the Conduct Shareholders.
     -----------------------------

Ladies and Gentlemen:

     We refer to the Share Exchange Agreement dated as of November 24, 1999 (the
"Exchange Agreement"), among Mercury Interactive Corporation, a Delaware
corporation ("Mercury"), Conduct Ltd., an Israeli corporation ("Conduct"),
Conduct Software Technologies, Inc., a California corporation and a wholly owned
subsidiary of Conduct ("Subsidiary"), and the shareholders of Conduct (the
"Conduct Shareholders"), pursuant to which the Conduct Shareholders are
exchanging all of their outstanding capital shares of Conduct for shares of
common stock of Mercury, after which Conduct will be a wholly-owned subsidiary
of Mercury.  We have served as counsel to Mercury in connection with the
Exchange Agreement and the transactions contemplated thereby.  Each capitalized
term used but not defined herein shall have the meaning ascribed thereto in the
Exchange Agreement.

     For the purpose of rendering this opinion, we have examined, among other
documents, an original copy of the executed Exchange Agreement.

     We have been furnished and we have relied in giving this opinion as to
various questions of fact material to this opinion upon (i) the Secretary's
Certificate of Mercury being delivered to you concurrently herewith, and (ii) an
Officer's Certificate of Mercury with respect to certain factual matters.  As to
matters of fact relevant to this opinion, we have relied solely upon (i) our
examination of the certificates referred to in the preceding sentence, (ii) the
representations and warranties of Mercury set forth in the Exchange Agreement
and (iii) the representations and warranties made by representatives of Mercury
to us.  We have made no attempt to verify the accuracy of any of such
information, representations or warranties or to determine the existence or non-
existence of any other
<PAGE>

Conduct Ltd.
November 30, 1999
Page 2

factual matters, nor have we caused the search of any docket of any court,
tribunal, agency or any other record of any governmental agency or third party.

     Whenever a statement herein is qualified by the phrases "known to us" or
"to our knowledge," or similar phrases, it is intended to indicate that, during
the course of our representation of the Company in this transaction, no
information that would give us current actual knowledge of the inaccuracy of
such statement has come to the attention of those attorneys presently in this
firm who have rendered legal services in connection with the representation
described in the introductory paragraph of this opinion letter.  However, we
have not undertaken any independent investigation or review to determine the
accuracy of any such statement, and any limited inquiry undertaken by us during
the preparation of this opinion letter should not be regarded as such an
investigation or review; no inference as to our knowledge of any matters bearing
on the accuracy of any such statement should be drawn from the fact of our
representation of the Company.

     This opinion is limited solely to the federal laws of the United States of
America, the laws of the State of California and the General Corporation Law of
the State of Delaware as those laws are in effect as of the date hereof, and we
express no opinion as to the laws of any other state or jurisdiction (including,
but not limited to, ordinances, regulations or practices or any county, city or
other local government agency or body within the State of California) or any
other laws of the State of Delaware.

     Pursuant to Section 8.3(c) of the Exchange Agreement, and subject to the
assumptions, limitations and qualifications herein set forth, we are of the
opinion that:

     1.  Mercury is a corporation duly organized, validly existing and in good
standing under the laws of the State of Delaware.

     2.  Mercury has the corporate power and authority to enter into and perform
the Exchange Agreement and has taken all necessary corporate action to authorize
the execution, delivery and performance of the Exchange Agreement.

     3.  The Exchange Agreement has been duly executed and delivered by Mercury
and constitutes the legal, valid and binding obligation of Mercury enforceable
against Mercury in accordance with its terms.

     4.  The execution, delivery and performance of the Exchange Agreement by
Mercury and the consummation of the transactions therein contemplated do not
result in a breach or violation of any of the terms or provisions of, or
constitute a default under, (a) any provision of Mercury's Restated Certificate
of Incorporation or Amended and
<PAGE>

Conduct Ltd.
November 30, 1999
Page 3

Restated By-laws, or (b) to our knowledge any judgment, order, decree, statute,
law, ordinance, rule or regulation applicable to Mercury, or its properties or
assets.

     For purposes of rendering the foregoing opinions, we have made, without
further inquiry as to their accuracy or completeness, the following assumptions:

          (a) We have assumed the authenticity of all documents submitted to us
as originals, the genuineness of all signatures on original documents, the legal
capacity of all natural persons and the conformity with the original documents
of any copies thereof submitted to us for our examination.

          (b) We have assumed the due authorization, execution and delivery of
the Exchange Agreement and all of the other instruments and agreements
contemplated thereby by the parties thereto (other than Mercury) and that such
agreement and all of the other instruments and agreements contemplated thereby
constitute the legally valid and binding obligations of the parties thereto
(other than Mercury), enforceable against such parties in accordance with their
respective terms.

          (c) We have assumed compliance by you with any and all applicable laws
with which you are required to comply relating to or affecting the matters and
actions contemplated by the Exchange Agreement and all of the other instruments
and agreements contemplated thereby.

          (d) We have assumed that the Exchange Agreement has not been further
amended or modified, or been terminated or revoked in any respect, and that it
remains in full force and effect as of the date hereof, and that none of the
other instruments and agreements contemplated thereby has been amended,
modified, terminated or revoked in any respect, and that each remains in full
force and effect as of the date hereof.

The opinion set forth above are subject to the following:

          (a) Our opinion is subject to the effect of any applicable bankruptcy,
insolvency, fraudulent conveyance, fraudulent transfer and equitable
subordination, reorganization, moratorium or similar law affecting creditors'
rights generally, and to the effect of general principles of equity, including
(without limitation) concepts of materiality, reasonableness, estoppel, good
faith and fair dealing (regardless whether considered in a proceeding in equity
or at law).  We express no opinion as to the availability of equitable remedies.

          (b) Certain rights, remedies and waivers set forth in the Exchange
Agreement (including but not limited to the indemnification and severability
provisions)
<PAGE>

Conduct Ltd.
November 30, 1999
Page 4

may be unenforceable, in whole or in part, but the inclusion of such provisions
does not affect the validity of such agreement taken as a whole.

          (c) We express no opinion as to compliance with the antifraud
provisions of applicable securities laws.

     This opinion is given as of the date hereof and we disclaim any obligation
to advise you of any fact, circumstance, event or changes or developments in law
or the facts that may occur after the date hereof which may affect the
conclusions reached herein. This opinion is being delivered solely for the
benefit of the persons to whom it is addressed and may not be quoted, filed with
any governmental authority or other regulatory agency or otherwise circulated or
utilized for any other purpose without our prior written consent.

Very Truly Yours,

GENERAL COUNSEL ASSOCIATES LLP

<PAGE>

                                                                    EXHIBIT 21.1

                           SUBSIDIARIES OF REGISTRANT

Mercury Interactive (Israel) Limited, incorporated under the laws of Israel

Mercury Interactive (UK) LTD., incorporated under the laws of the United
Kingdom

Mercury Interactive France SARL, incorporated under the laws of France

Mercury Interactive GmbH, incorporated under the laws of Germany

Mercury Interactive (Europe) BV, incorporated under the laws of The Netherlands

Mercury Interactive Canada Inc., incorporated under the laws of Canada

Mercury Interactive Japan K.K., incorporated under the laws of Japan

Mercury Interactive (Australia) Pty Ltd., incorporated under laws of Australia

Mercury Interactive Asia Pte LTD., incorporated under the laws of Singapore

Mercury Interactive (Belgium)--Benelux Branch, registered under the laws of
Belgium

Mercury Interactive Brasil Limitada, incorporated under the laws of Brazil

Mercury Interactive NORDIC AB, incorporated under the laws of Sweden

Mercury Interactive Srl, incorporated under the laws of Italy

Mercury Interactive Aps, incorporated under the laws of Denmark

Mercury Interactive SA (Pty) Ltd., incorporated under the laws of South Africa

Mercury Interactive (China) Limited, incorporated under the laws of Hong Kong

Mercury Interactive B.V., incorporated under the laws of the Netherlands

Conduct Software Technologies, Inc., incorporated under the laws of California

Conduct Ltd., incorporated under the laws of Israel

Quicksilver Interactive Corporation, incorporated under the laws of Delaware

<PAGE>

                                                                   EXHIBIT 23.1

                      CONSENT OF INDEPENDENT ACCOUNTANTS

  We hereby consent to the incorporation by reference in the Registration
Statements on Form S-8 (Nos. 33-71018, 33-74728, 33-95178, 333-09913, 333-
27951, 333-62125, 333-81401 and 333-94837) of Mercury Interactive Corporation
of our report dated January 20, 2000, except as to the stock split described
in Note 9, which is as of February 11, 2000, relating to the financial
statements and financial statement schedule which appears in this Form 10-K.

PricewaterhouseCoopers LLP

San Jose, California
March 17, 2000

<TABLE> <S> <C>

<PAGE>




















<ARTICLE> 5
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1998
<PERIOD-START>                             JAN-01-1999             JAN-01-1998
<PERIOD-END>                               DEC-31-1999             DEC-31-1998
<CASH>                                         113,346                  96,836
<SECURITIES>                                    73,536                  33,827
<RECEIVABLES>                                   45,932                  31,526
<ALLOWANCES>                                   (5,533)                 (3,623)
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                               234,753                 155,566
<PP&E>                                          67,520                  43,765
<DEPRECIATION>                                (20,610)                (15,342)
<TOTAL-ASSETS>                                 297,218                 204,686
<CURRENT-LIABILITIES>                           97,687                  58,278
<BONDS>                                              0                       0
                                0                       0
                                          0                       0
<COMMON>                                           156                     148
<OTHER-SE>                                     199,375                 146,260
<TOTAL-LIABILITY-AND-EQUITY>                   297,218                 204,686
<SALES>                                        130,900                  84,450
<TOTAL-REVENUES>                               187,700                 121,000
<CGS>                                            7,736                   6,291
<TOTAL-COSTS>                                   26,378                  18,048
<OTHER-EXPENSES>                               125,335                  82,616
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                                 42,013                  24,976
<INCOME-TAX>                                     8,869                   5,451
<INCOME-CONTINUING>                             33,144                  19,525
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    33,144                  19,525
<EPS-BASIC>                                       0.44                    0.28
<EPS-DILUTED>                                     0.39                    0.25


</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission