Document:

<PAGE>   1
Exhibit 10.1

Portions of this Exhibit have been omitted pursuant to a request for
confidential treatment pursuant to Rule 24b-2 under the Securities Exchange Act
of 1934, as amended, and Rule 406 under the Securities Act of 1933, as amended.
These omitted portions have been marked with "*" and have been filed separately
with the Securities and Exchange Commission.

                                LICENSE AGREEMENT

This License Agreement is entered into as of December 12, 2000, by and between
API Pharmaceuticals, Inc. of 8707 Technology Forest Place, The Woodlands, Texas
77381-1191, U.S.A. ("API") and Sumitomo Pharmaceuticals Co., Ltd. of 2-8,
Doshomachi 2-Chome, Chuo-ku, Osaka 541-8510, Japan ("Sumitomo").

1.       Definitions.

         "Subject Patent" means (i) US Patent Application Serial No. 06/836,524,
         filed March 5, 1986 and any patents issued thereon, and (ii) any
         divisions, continuations, continuation-in-part, reissues, renewals and
         extensions thereof.

         "Products" means any products covered by any of the Subject Patent,
         except for any product which contains [ ** ] ("Sumitomo Product").

         "Net Sales" means the gross sales of all the Products covered by a
         valid claim of an issued Subject Patent sold by API to third parties in
         the Territory less (i) all quantity discounts and customary allowances
         actually granted to such third parties with respect to the sale of the
         Products, (ii) returns of the Products to API from its customer by
         reason of spoiled, damaged or outdated products and (iii)
         transportation and handling charges, taxes and duties applicable to
         sales of the Products.

         "Territory" means U.S.A. and its territories and protectorates.

2.       License. Sumitomo hereby grants to API under the Subject Patent except
         for the treatment of hepatoma (i) an exclusive license to make, have
         made, use, develop, import and sell [ ** ] ("API Product") (ii) an
         exclusive license but for Sumitomo to make, have made, use, develop,
         import and sell any other Products than API Product, in the Territory.

3.       Compensation.  In consideration of the license hereunder, API shall pay
         the following milestone payments and running royalties to Sumitomo by
         bank transfer to Sumitomo's designated account as set forth below.

         Milestone Payments

         o  US$500,000 within thirty (30) days of executing this Agreement;

                                      -4-
<PAGE>   2

         o  [ ** ] within thirty (30) days of acceptance of filing the first
            regulatory application for sales regarding the first Product within
            the Territory;

         o  [ ** ] within thirty (30) days of obtaining the first regulatory
            approval for sales regarding the first Product within the Territory;

         o  [ ** ] within thirty (30) days of the earliest fiscal year end of
            API when cumulative Net Sales in the Territory reaches [ ** ];

         o  [ ** ] within thirty (30) days of obtaining regulatory approval for
            sales regarding each additional product among the Products within
            the Territory.

Running Royalty

         Within ninety (90) days of each fiscal year end of API:

         o  [ ** ] for the part of annual Net Sales up to [ ** ];

         o  [ ** ] for the part of annual Net Sales over [ ** ] up to [ ** ];

         o  [ ** ] for the part of annual Net Sales over [ ** ].

In the event that the Product is sold by API in combination with other active
ingredients, the applicable royalty payable by API shall be reduced
proportionately based upon the selling prices of each active ingredients
individually as compared to the selling price of the combined product.

4.       Taxes. Withholding taxes, if any, levied on any of the above payments
         may be deducted therefrom, and API shall furnish to Sumitomo the
         evidences of the payment of any such taxes for Sumitomo to obtain tax
         reduction from Japanese government.

5.       Royalty Report. API shall furnish to Sumitomo within ninety (90) days
         of its fiscal year a written report showing (i) the Net Sales of all
         Products sold by API and the running royalty on such Net Sales during
         the reporting period and (ii) withholding taxes set forth in the above
         paragraph 4.

6.       Records and Audit. API shall keep accurate records in sufficient detail
         to enable the running royalties payable hereunder to be determined for
         eight (8) years from the year in which such sales occurred. Upon
         reasonable prior notice, Sumitomo may, at Sumitomo's expense, and not
         more than once in each fiscal year, have a public accounting firm
         examine the records stipulated above during reasonable business hours.
         Said public accounting firm shall treat as confidential, and shall not
         disclose any information acquired through the audit.

7.       Patent Infringement by Third Party; Prosecution and Maintenance.

         (1)      In the event that a third party infringes or threatens to
                  infringe any of the Subject Patents except for those
                  concerning Sumitomo Product in the Territory, API may, after
                  full consultation with Sumitomo, take any suitable measures
                  including a legal action against such infringement and
                  Sumitomo shall give reasonable

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                  assistance (excluding financial assistance) to API. If API
                  commences litigation, it shall have the right to sue in
                  Sumitomo's name as attorney in fact for Sumitomo. API shall be
                  entitled to a credit against up to [ ** ]of the royalty
                  payments required under paragraph 3 for the amounts paid by it
                  in defending and enforcing the Subject Patent. Any recoveries
                  which API receives as damages or settlement as the result of
                  such measures shall be first credited to such royalty and the
                  remaining sum, if any, shall be [ ** ] by Sumitomo and API.

                  API shall keep Sumitomo reasonably informed as to such
                  infringement and measures, and shall not execute a settlement
                  or compromise on such infringement without prior consent of
                  Sumitomo, which consent shall not be unreasonably withheld or
                  delayed. Sumitomo has the right to participate in or take any
                  such measures at its own discretion and expense.

         (2)      Sumitomo shall be responsible for prosecution and maintenance
                  of the Subject Patent, at its expense, and shall keep API
                  informed thereof. In the event that API assumes the
                  prosecution and maintenance of the Subject Patent, it shall be
                  entitled to a [ ** ] against royalties due under paragraph 3
                  above.

8.       Product Liability. API shall indemnify and hold harmless Sumitomo
         (including its affiliates, employees, agents and representatives)
         against any and all claims, damages, liabilities, losses, costs and
         expenses of any kind or nature arising out of or in connection with
         third party claims or suits relating to the Products made, developed,
         manufactured, imported or sold by API.

9.       Term. This Agreement shall become effective on the date when API
         withdraws the pending case between the parties regarding Subject
         Patent, and shall remain in full force until the latest expiration date
         of the Subject Patent. Sumitomo may terminate this Agreement if API
         resumes such case or contests the validity of the Subject Patent in any
         other way.

10.      Termination. Either party may at any time immediately terminate this
         Agreement, by giving written notice to the other party, upon the
         happening of any of the following events:

         1) if the other party makes an assignment of substantially all of its
            assets for the benefit of creditors, is the subject of proceedings
            in voluntary or involuntary bankruptcy or reorganization instituted
            on behalf of or against such party, or has a receiver or trustee
            appointed for all or substantially all of its property;

         2) if the other party becomes insolvent, or is unable to pay its debts
            as and when they fall due;

         3) if default is made by the other party in performance or observance
            of any provision of this Agreement and such default is not rectified
            within thirty (30) days notice specifying the default.

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<PAGE>   4

11.      Reimbursement. API shall reimburse Sumitomo such costs and expenses,
         including, but not limited to, lawyer's fee, as incurred by Sumitomo on
         and after the effective date hereof in connection with the pending case
         stipulated in the paragraph 9.

12.      Entire Agreement. This Agreement constitutes the whole and entire
         agreement between the parties with respect to the subject matter
         hereof, and replaces all previous representations, understandings or
         arrangements given or made by the parties with respect thereto, whether
         oral or in writing.

13.      Non-Assignment. Neither party may assign all or any of its rights under
         this Agreement without the prior written consent of the other party,
         which consent shall not be unreasonably withheld. Notwithstanding the
         foregoing, and except in the case described in paragraph 10(1) above,
         either party may assign this Agreement without such consent to a third
         party that succeeds to all or substantially all of the assigning
         party's business or assets relating to this Agreement, whether by sale,
         merger, operation of law or otherwise provided that such assignee or
         transferee agrees in writing to be bound by the terms and conditions of
         this Agreement.

14.      Governing Law. This Agreement shall be construed and enforced in
         accordance with the laws of [ ** ].

15.      Arbitration. Any dispute or controversy between the parties as to the
         interpretation, enforcement or termination of this Agreement, which
         cannot otherwise be settled by the parties, shall be finally settled by
         binding arbitration under the Rules of the International Chamber of
         Commerce to be held at the principal place of business of the party
         against whom any such action was initiated. Such arbitration proceeding
         shall be conducted, in English, by a panel of 3 arbitrators appointed
         in accordance with such rules. The costs of the arbitration, including
         administrative fees and fees of the arbitrators, shall be shared
         equally by the parties, unless otherwise determined by the arbitrators.
         Each party shall bear the cost of its own attorneys' fees and expert
         fees incurred in such proceedings.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement in duplicate
by their duly authorized representatives and each party keeps one each.

Accepted:                           Accepted:
API Pharmaceuticals, Inc.           Sumitomo Pharmaceuticals Co., Ltd.

By: /s/ GEOFFREY F. COX, PH.D.      By:  /s/ HIROSHI NOGUCHI, PH.D.
   ------------------------------       ---------------------------------------
         Geoffrey F. Cox, Ph.D.            Hiroshi Noguchi, Ph.D.
                                           Director, General Manager of Business
Title:   Chairman and CEO           Title: Development and Licensing Office
      ---------------------------          ------------------------------------

Date:     December 12, 2000         Date:         December 12, 2000
     ----------------------------          -------------------------------------

                                      -7-<PAGE>

                                                                     Exhibit 4.3

                         REGISTRATION RIGHTS AGREEMENT

          THIS REGISTRATION RIGHTS AGREEMENT is made and entered into as of
November 17, 2000 by and between Tyco International Ltd., a Bermuda company
("the Company"), and Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith
Incorporated (the "Initial Purchaser"), pursuant to the Purchase Agreement,
dated November 14, 2000 (the "Purchase Agreement"), between the Company and the
Initial Purchaser. In order to induce the Initial Purchaser to enter into the
Purchase Agreement, the Company has agreed to provide the registration rights
set forth in this Agreement. The execution of this Agreement is a condition to
the closing under the Purchase Agreement.

          The Company agrees with the Initial Purchaser, (i) for its benefit as
Initial Purchaser and (ii) for the benefit of the beneficial owners (including
the Initial Purchaser) from time to time of the LYONs (as defined herein) and
the beneficial owners from time to time of the Underlying Common Stock (as
defined herein) issued upon conversion of the LYONs or in payment of the
purchase price of a purchase of LYONs by the Company on November 17, 2001 (each
of the foregoing a "Holder" and together the "Holders"), as follows:

       Section 1.   Definitions.  Capitalized terms used herein without
                    -----------
definition shall have their respective meanings set forth in the Purchase
Agreement. As used in this Agreement, the following terms shall have the
following meanings:

       "Affiliate" With respect to any specified person, an "affiliate," as
       -----------
defined in Rule 144, of such person.

       "Applicable Conversion Price"  The Applicable Conversion Price as of any
       -----------------------------
date of determination means the Applicable Principal Amount per $1,000 principal
amount at maturity of LYONs as of such date of determination divided by the
Conversion Rate in effect as of such date of determination or, if no LYONs are
then outstanding, the Conversion Rate that would be in effect were LYONs then
outstanding.

       "Applicable Principal Amount"  Applicable Principal Amount as of any date
       -----------------------------
of determination, with respect to each $1,000 principal amount at maturity of
LYONs means the sum of the initial issue price of such LYONs ($741.65) plus
accrued original issue discount with respect to such LYON through such date of
determination or, if no LYONs are then outstanding, such sum calculated as if
such LYONs were then outstanding.
<PAGE>

       "Business Day"  Each Monday, Tuesday, Wednesday, Thursday and Friday
        ------------
that is not a day on which banking institutions in The City of New York are
authorized or obligated by law or executive order to close.

       "Common Shares"  The Common Shares, $0.20 par value, of the Company and
       ---------------
any other shares of capital stock as may constitute "Common Shares" for purposes
of the Indenture, including the Underlying Common Shares.

       "Conversion Rate"  Conversion Rate shall have the meaning assigned such
       -----------------
term in the Indenture.

       "Damages Accrual Period"  See Section 2(e) hereof.
        ----------------------

       "Damages Payment Date"  Each May 17 and November 17 in the case of LYONs
       ----------------------
and the Underlying Common Shares.

       "Deferral Notice"  See Section 3(i) hereof.
       -----------------

       "Deferral Period"  See Section 3(i) hereof.
       -----------------

       "Effectiveness Deadline Date"  See Section 2(a) hereof.
       -----------------------------

       "Effectiveness Period"  The period of two years from the later of the (a)
       ----------------------
Issue Date or (b) the last date of original issuance of the LYONs, or such
shorter period ending on the date that all Registrable Securities have ceased to
be Registrable Securities.

       "Event"  See Section 2(e) hereof.
       -------

       "Event Termination Date"  See Section 2(e) hereof.
       ------------------------

       "Event Date"  See Section 2(e) hereof.
       ------------

       "Exchange Act"  The Securities Exchange Act of 1934, as amended, and the
       --------------
rules and regulations of the SEC promulgated thereunder.

       "Filing Deadline Date"  See Section 2(a) hereof.
       ----------------------

       "Holder"  See the second paragraph of this Agreement.
       --------

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<PAGE>

       "Indenture"  The Indenture dated as of the date hereof between the
       -----------
Company and State Street Bank and Trust Company, as trustee, pursuant to which
the LYONs are being issued.

       "Initial Purchaser"  Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner &
       -------------------
Smith Incorporated.

       "Initial Shelf Registration Statement"  See Section 2(a) hereof.
       --------------------------------------

       "Issue Date" means November 17, 2000.
       ------------

       "Liquidated Damages Amount"  See Section 2(e) hereof.
       ---------------------------

       "Losses"  See Section 6 hereof.
       --------

       "LYONs"  The Liquid Yield Option Notes due 2020 of the Company to be
       -------
purchased pursuant to the Purchase Agreement.

       "Material Event"  See Section 3(i) hereof.
       ----------------

       "Notice and Questionnaire"  A written notice delivered to the Company
       -------------------------
containing substantially the information called for by the Selling Security
Holder Notice and Questionnaire attached as Annex A to the Offering Memorandum
of the Company dated November 14, 2000 relating to the LYONs.

       "Notice Holder"  On any date, any Holder that has delivered a Notice and
       ---------------
Questionnaire to the Company on or prior to such date.

       "Prospectus"  The prospectus included in any Registration Statement
       ------------
(including, without limitation, a prospectus that discloses information
previously omitted from a prospectus filed as part of an effective registration
statement in reliance upon Rule 415 promulgated under the Securities Act), as
amended or supplemented by any amendment or prospectus supplement, including
post-effective amendments, and all materials incorporated by reference or
explicitly deemed to be incorporated by reference in such Prospectus.

       "Purchase Agreement"  See the first paragraph of this Agreement.
       --------------------

       "Record Holder"  With respect to any Damages Payment Date relating to any
       ---------------
LYON or Underlying Common Shares as to which any Liquidated Damages Amount has
accrued, the registered holder of such LYON or Underlying Common Shares, as the
case may

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<PAGE>

be, the first day of the month of the next succeeding Damages Payment Date, or
when the Event is cured, the registered holder on the date of such cure.

       "Registrable Securities"  The LYONs, the Underlying Common Shares, until
       ------------------------
such securities have been converted or exchanged, and, at all times subsequent
to any such conversion or exchange, any securities into or for which such
securities have been converted or exchanged, and any security issued with
respect thereto upon any stock dividend, split or similar event until, in the
case of any such security, the earliest of (i) its effective registration under
the Securities Act and resale in accordance with the Registration Statement
covering it, (ii) expiration of the holding period that would be applicable
thereto under Rule 144(k) were it not held by an Affiliate of the Company, or
(iii) its sale to the public pursuant to Rule 144.

       "Registration Expenses"  See Section 5 hereof.
       -----------------------

       "Registration Statement"  Any registration statement of the Company that
       ------------------------
covers any of the Registrable Securities pursuant to the provisions of this
Agreement, including the Prospectus, amendments and supplements to such
registration statement, including post-effective amendments, all exhibits, and
all materials incorporated by reference or explicitly deemed to be incorporated
by reference in such registration statement.

       "Restricted Securities"  As this term is defined in Rule 144.
       -----------------------

       "Rule 144"  Rule 144 under the Securities Act, as such Rule may be
       ----------
amended from time to time, or any similar rule or regulation hereafter adopted
by the SEC.

       "Rule 144A"  Rule 144A under the Securities Act, as such Rule may be
       -----------
amended from time to time, or any similar rule or regulation hereafter adopted
by the SEC.

       "SEC"  The Securities and Exchange Commission.
       -----

       "Securities Act"  The Securities Act of 1933, as amended, and the rules
       ----------------
and regulations promulgated by the SEC thereunder.

       "Shelf Registration Statement"  See Section 2(a) hereof.
       ------------------------------

       "Subsequent Shelf Registration Statement"  See Section 2(b) hereof.
       -----------------------------------------

       "TIA" The Trust Indenture Act of 1939, as amended.
       -----

       "Trustee"  State Street Bank and Trust Company (or any successor entity),
       ---------
the Trustee under the Indenture.

                                       4
<PAGE>

       "Underlying Common Shares"  The Common Shares into which the LYONs are
       --------------------------
convertible or issued upon any such conversion or in payment of the purchase
price of a purchase of LYONs by the Company on November 17, 2001.

       Section 2.   Shelf Registration. (a) The Company shall prepare and file
                    ------------------
or cause to be prepared and filed with the SEC, as soon as practicable but in
any event by the date (the "Filing Deadline Date") ninety (90) days after the
Issue Date, a Registration Statement for an offering to be made on a delayed or
continuous basis pursuant to Rule 415 of the Securities Act (a "Shelf
Registration Statement") registering the resale from time to time by Holders
thereof of all of the Registrable Securities (the "Initial Shelf Registration
Statement"). The Initial Shelf Registration Statement shall be on Form S-3 or
another appropriate form permitting registration of such Registrable Securities
for resale by such Holders in accordance with the methods of distribution
elected by the Holders and set forth in the Initial Shelf Registration
Statement; provided, that in no event will such method(s) of distribution take
the form of an underwritten offering of the Registrable Securities without the
prior agreement of the Company. The Company shall use reasonable efforts to
cause the Initial Shelf Registration Statement to be declared effective under
the Securities Act as promptly as is practicable but in any event by the date
(the "Effectiveness Deadline Date") that is two hundred and ten (210) days after
the Issue Date, and to keep the Initial Shelf Registration Statement (or any
Subsequent Shelf Registration Statement) continuously effective under the
Securities Act until the expiration of the Effectiveness Period. At the time the
Initial Shelf Registration Statement is declared effective, each Holder that
became a Notice Holder on or prior to the date 10 Business Days prior to such
time of effectiveness shall be named as a selling security holder in the Initial
Shelf Registration Statement and the related Prospectus in such a manner as to
permit such Holder to deliver such Prospectus to purchasers of Registrable
Securities in accordance with applicable law. None of the Company's security
holders (other than the Holders of Registrable Securities) shall have the right
to include any of the Company's securities in the Shelf Registration Statement.

       (b) If the Initial Shelf Registration Statement or any Subsequent Shelf
Registration Statement ceases to be effective for any reason at any time during
the Effectiveness Period, the Company shall use all reasonable efforts to obtain
the prompt withdrawal of any order suspending the effectiveness thereof, and in
any event shall within thirty (30) days of such cessation of effectiveness amend
the Shelf Registration Statement in a manner reasonably expected to obtain the
withdrawal of the order suspending the effectiveness thereof, or file an
additional Shelf Registration Statement covering all of the securities that as
of the date of such filing are Registrable Securities (a "Subsequent Shelf
Registration Statement"). If a Subsequent Shelf Registration Statement is filed,
the Company shall use all reasonable efforts to cause the Subsequent Shelf
Registration Statement to become effective as promptly as is practicable after
such filing and to keep such Registration

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<PAGE>

Statement (or subsequent Shelf Registration Statement) continuously effective
until the end of the Effectiveness Period.

       (c) The Company shall supplement and amend the Shelf Registration
Statement if required by the rules, regulations or instructions applicable to
the registration form used by the Company for such Shelf Registration Statement,
if required by the Securities Act or, to the extent to which the Company does
not reasonably object, as reasonably requested by the Initial Purchaser or by
the Trustee on behalf of the registered Holders.

       (d) Each Holder of Registrable Securities agrees that if such Holder
wishes to sell Registrable Securities pursuant to a Shelf Registration Statement
and related Prospectus, it will do so only in accordance with this Section 2(d)
and Section 3(i). Each Holder of Registrable Securities wishing to sell
Registrable Securities pursuant to a Shelf Registration Statement and related
Prospectus agrees to deliver a Notice and Questionnaire to the Company at least
five (5) Business Days prior to any intended distribution of Registrable
Securities under the Shelf Registration Statement. From and after the date the
Initial Shelf Registration Statement is declared effective, the Company shall,
as promptly as is practicable after the date a Notice and Questionnaire is
delivered (i) if required by applicable law, file with the SEC a post-effective
amendment to the Shelf Registration Statement or prepare and, if required by
applicable law, file a supplement to the related Prospectus or a supplement or
amendment to any document incorporated therein by reference or file any other
document required by the SEC so that the Holder delivering such Notice and
Questionnaire is named as a selling security holder in the Shelf Registration
Statement and the related Prospectus in such a manner as to permit such Holder
to deliver such Prospectus to purchasers of the Registrable Securities in
accordance with applicable law and, if the Company shall file a post-effective
amendment to the Shelf Registration Statement, use reasonable efforts to cause
such post-effective amendment to be declared effective under the Securities Act
as promptly as is practicable; (ii) provide such Holder copies of any documents
filed pursuant to Section 2(d)(i); and (iii) notify such Holder as promptly as
practicable after the effectiveness under the Securities Act of any post-
effective amendment filed pursuant to Section 2(d)(i); provided, that if such
Notice and Questionnaire is delivered during a Deferral Period, the Company
shall so inform the Holder delivering such Notice and Questionnaire and shall
take the actions set forth in clauses (i), (ii) and (iii) above upon expiration
of the Deferral Period in accordance with Section 3(i), provided, further, that
if under applicable law the Company has more than one option as to the type or
manner of making any such filing, as set forth in an opinion of nationally-
recognized counsel experienced in such matters delivered by the Holder to the
Company, it will make the required filing or filings in the manner or of a type
that is reasonably expected to result in the earliest availability of the
Prospectus for effecting resales of Registrable Securities. Notwithstanding
anything contained herein to the contrary,

                                       6
<PAGE>

the Company shall be under no obligation to name any Holder that is not a Notice
Holder as a selling security holder in any Registration Statement or related
Prospectus; provided, however, that any Holder that becomes a Notice Holder
pursuant to the provisions of Section 2(d) of this Agreement (whether or not
such Holder was a Notice Holder at the time the Registration Statement was
initially declared effective) shall be named as a selling security holder in the
Registration Statement or related Prospectus subject to and in accordance with
the requirements of this Section 2(d).

       (e) The parties hereto agree that the Holders of Registrable Securities
will suffer damages, and that it would not be feasible to ascertain the extent
of such damages with precision, if (i) the Initial Shelf Registration Statement
has not been filed on or prior to the Filing Deadline Date, (ii) the Initial
Shelf Registration Statement has not been declared effective under the
Securities Act on or prior to the Effectiveness Deadline Date, or (iii) the
aggregate duration of Deferral Periods in any period exceeds the number of days
permitted in respect of such period pursuant to Section 3(i) hereof (each of the
events of a type described in any of the foregoing clauses (i) through (iii) are
individually referred to herein as an "Event," and the Filing Deadline Date in
the case of clause (i), the Effectiveness Deadline Date in the case of clause
(ii), and the date on which the aggregate duration of Deferral Periods in any
period exceeds the number of days permitted by Section 3(i) hereof in the case
of clause (iii), being referred to herein as an "Event Date"). Events shall be
deemed to continue until the "Event Termination Date," which shall be the
following dates with respect to the respective types of Events: the date the
Initial Shelf Registration Statement is filed in the case of an Event of the
type described in clause (i), the date the Initial Shelf Registration Statement
is declared effective under the Securities Act in the case of an Event of the
type described in clause (ii), termination of the Deferral Period that caused
the limit on the aggregate duration of Deferral Periods in a period set forth in
Section 3(i) to be exceeded in the case of the commencement of an Event of the
type described in clause (iii).

       Accordingly, commencing on (and including) any Event Date and ending on
(but excluding) the next date on which there are no Events that have occurred
and are continuing (a "Damages Accrual Period"), the Company agrees to pay, as
liquidated damages and not as a penalty, an amount (the "Liquidated Damages
Amount"), payable on the Damages Payment Dates to Record Holders of then
outstanding LYONs that are Registrable Securities and of then outstanding shares
of Underlying Common Shares issued upon conversion of, or in payment of the
purchase price of, LYONs that are Registrable Securities, as the case may be,
accruing, for each portion of such Damages Accrual Period beginning on and
including a Damages Payment Date (or, in respect of the first time that the
Liquidation Damages Amount is to be paid to Holders on a Damages Payment Date as
a result of the occurrence of any particular Event, from the Event Date) and
ending on but excluding the first to occur of (A) the date of the end of the
Damages Accrual Period or (B) the next Damages Payment Date, at a rate per annum
equal to one-quarter of one percent (0.25%) for the first 90-day period from

                                       7
<PAGE>

the Event Date, and thereafter at a rate per annum equal to one-half of one
percent (0.5%) of the aggregate Applicable Principal Amount of such LYONs and
the aggregate Applicable Conversion Price of such shares of Underlying Common
Shares, as the case may be, in each case determined as of the Business Day
immediately preceding the next Damages Payment Date; provided, that any
Liquidated Damages Amount accrued with respect to any LYON or portion thereof
called for redemption on a redemption date or converted into Underlying Common
Shares on a conversion date prior to the Damages Payment Date, shall, in any
such event, be paid instead to the Holder who submitted such LYON or portion
thereof for redemption or conversion on the applicable redemption date or
conversion date, as the case may be, on such date (or promptly following the
conversion date, in the case of conversion). Notwithstanding the foregoing, no
Liquidated Damages Amounts shall accrue as to any Registrable Security from and
after the earlier of (x) the date such security is no longer a Registrable
Security and (y) expiration of the Effectiveness Period. The rate of accrual of
the Liquidated Damages Amount with respect to any period shall not exceed the
rate provided for in this paragraph notwithstanding the occurrence of multiple
concurrent Events. Following the cure of all Events requiring the payment by the
Company of Liquidated Damages Amounts to the Holders of Registrable Securities
pursuant to this Section, the accrual of Liquidated Damages Amounts will cease
(without in any way limiting the effect of any subsequent Event requiring the
payment of the Liquidated Damages Amount by the Company).

        The Trustee shall be entitled, on behalf of Holders of LYONs or
Underlying Common Shares, to seek any available remedy for the enforcement of
this Agreement, including for the payment of any Liquidated Damages Amount.
Notwithstanding the foregoing, the parties agree that the sole monetary damages
payable for a violation of the terms of this Agreement with respect to which
liquidated damages are expressly provided shall be such liquidated damages.
Nothing shall preclude a Notice Holder or Holder of Registrable Securities from
pursuing or obtaining specific performance or other equitable relief with
respect to this Agreement.

        All of the Company's obligations set forth in this Section 2(e) that are
outstanding with respect to any Registrable Security at the time such security
ceases to be a Registrable Security shall survive until such time as all such
obligations with respect to such security have been satisfied in full
(notwithstanding termination of this Agreement pursuant to Section 8(k)).

        The parties hereto agree that the liquidated damages provided for in
this Section 2(e) constitute a reasonable estimate of the damages that may be
incurred by Holders of Registrable Securities by reason of the failure of the
Shelf Registration Statement to be filed or declared effective or available for
effecting resales of Registrable Securities in accordance with the provisions
hereof.

                                       8
<PAGE>

       Section 3.   Registration Procedures.  In connection with the
                    -----------------------
registration obligations of the Company under Section 2 hereof, the Company
shall:

       (a) Before filing any Registration Statement or Prospectus or any
amendments or supplements thereto with the SEC, furnish to the Initial Purchaser
copies of all such documents proposed to be filed and use reasonable efforts to
reflect in each such document when so filed with the SEC such comments as the
Initial Purchaser reasonably shall propose within two (2) Business Days of the
delivery of such copies to the Initial Purchaser.

       (b) Prepare and file with the SEC such amendments and post-effective
amendments to each Registration Statement as may be necessary to keep such
Registration Statement continuously effective for the applicable period
specified in Section 1(a); cause the related Prospectus to be supplemented by
any required Prospectus supplement, and as so supplemented to be filed pursuant
to Rule 424 (or any similar provisions then in force) under the Securities Act;
and use all reasonable efforts to comply with the provisions of the Securities
Act applicable to it with respect to the disposition of all securities covered
by such Registration Statement during the Effectiveness Period in accordance
with the intended methods of disposition by the sellers thereof set forth in
such Registration Statement as so amended or such Prospectus as so supplemented.

       (c) As promptly as practicable give notice to the Notice Holders (which
such notice shall be in a manner appropriate under the circumstances, which may
or may not be the manner of notice described in Sections 8(b)(w) or (x) hereof)
and the Initial Purchaser (i) when any Prospectus, Prospectus supplement,
Registration Statement or post-effective amendment to a Registration Statement
has been filed with the SEC and, with respect to a Registration Statement or any
post-effective amendment, when the same has been declared effective, (ii) of any
request, following the effectiveness of the Initial Shelf Registration Statement
under the Securities Act, by the SEC or any other federal or state governmental
authority for amendments or supplements to any Registration Statement or related
Prospectus or for additional information, (iii) of the issuance by the SEC or
any other federal or state governmental authority of any stop order suspending
the effectiveness of any Registration Statement or the initiation or threatening
of any proceedings for that purpose, (iv) of the receipt by the Company of any
notification with respect to the suspension of the qualification or exemption
from qualification of any of the Registrable Securities for sale in any
jurisdiction or the initiation or threatening of any proceeding for such
purpose, (v) of the occurrence of (but not the nature of or details concerning)
a Material Event (provided, however, that no notice by the Company shall be
required pursuant to this clause (v) in the event that the Company either
promptly files a Prospectus supplement to update the Prospectus or a Form 8-K or
other appropriate Exchange Act report that is incorporated by reference into the
Registration Statement, which, in either case, contains the requisite
information with respect to such Material Event that results in such
Registration Statement

                                       9
<PAGE>

no longer containing any untrue statement of material fact or omitting to state
a material fact necessary to make the statements contained therein not
misleading) and (vi) of the determination by the Company that a post-effective
amendment to a Registration Statement will be filed with the SEC, which notice
may, at the discretion of the Company (or as required pursuant to Section 3(i)),
state that it constitutes a Deferral Notice, in which event the provisions of
Section 3(i) shall apply.

       (d) Use reasonable efforts to obtain the withdrawal of any order
suspending the effectiveness of a Registration Statement or the lifting of any
suspension of the qualification (or exemption from qualification) of any of the
Registrable Securities for sale in any jurisdiction in which they have been
qualified for sale, in either case at the earliest possible moment.

       (e) If reasonably requested by the Initial Purchaser or any Notice
Holder, as promptly as reasonably practicable incorporate in a Prospectus
supplement or post-effective amendment to a Registration Statement such
information as the Initial Purchaser or such Notice Holder shall, on the basis
of an opinion of nationally-recognized counsel experienced in such matters,
determine to be required to be included therein by applicable law and make any
required filings of such Prospectus supplement or such post- effective
amendment; provided, that the Company shall not be required to take any actions
under this Section 3(e) that are not, in the reasonable opinion of counsel for
the Company, in compliance with applicable law.

       (f) As promptly as reasonably practicable furnish to each Notice Holder
and the Initial Purchaser, upon their request and without charge, at least one
(1) conformed copy of the Registration Statement and any amendment thereto,
including financial statements, but excluding schedules, all documents
incorporated or deemed to be incorporated therein by reference and all exhibits
(unless requested in writing to the Company by such Notice Holder or the Initial
Purchaser, as the case may be).

       (g) During the Effectiveness Period, deliver to each Notice Holder in
connection with any sale of Registrable Securities pursuant to a Registration
Statement, without charge, as many copies of the Prospectus or Prospectuses
relating to such Registrable Securities (including each preliminary prospectus)
and any amendment or supplement thereto as such Notice Holder may reasonably
request; and the Company hereby consents (except during such periods that a
Deferral Notice is outstanding and has not been revoked) to the use of such
Prospectus or each amendment or supplement thereto by each Notice Holder in
connection with any offering and sale of the Registrable Securities covered by
such Prospectus or any amendment or supplement thereto in the manner set forth
therein.

                                       10
<PAGE>

       (h) Prior to any public offering of the Registrable Securities pursuant
to the Shelf Registration Statement, use all reasonable efforts to register or
qualify or cooperate with the Notice Holders in connection with the registration
or qualification (or exemption from such registration or qualification) of such
Registrable Securities for offer and sale under the securities or Blue Sky laws
of such jurisdictions within the United States as any Notice Holder reasonably
requests in writing (which request may be included in the Notice and
Questionnaire); prior to any public offering of the Registrable Securities
pursuant to the Shelf Registration Statement, use all reasonable efforts to keep
each such registration or qualification (or exemption therefrom) effective
during the Effectiveness Period in connection with such Notice Holder's offer
and sale of Registrable Securities pursuant to such registration or
qualification (or exemption therefrom) and do any and all other acts or things
necessary or advisable to enable the disposition in such jurisdictions of such
Registrable Securities in the manner set forth in the relevant Registration
Statement and the related Prospectus; provided, that the Company will not be
required to (i) qualify as a foreign corporation or as a dealer in securities in
any jurisdiction where it would not otherwise be required to qualify but for
this Agreement or (ii) take any action that would subject it to general service
of process in suits or to taxation in any such jurisdiction where it is not then
so subject.

       (i) Upon (A) the issuance by the SEC of a stop order suspending the
effectiveness of the Shelf Registration Statement or the initiation of
proceedings with respect to the Shelf Registration Statement under Section 8(d)
or 8(e) of the Securities Act, (B) the occurrence of any event or the existence
of any fact (a "Material Event") as a result of which any Registration Statement
shall 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, or any Prospectus shall 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, in the light of the circumstances
under which they were made, not misleading, or (C) the occurrence or existence
of any pending corporate development that, in the discretion of the Company,
makes it appropriate to suspend the availability of the Shelf Registration
Statement and the related Prospectus, (i) in the case of clause (B) above,
subject to the next sentence, as promptly as practicable prepare and file a
post-effective amendment to such Registration Statement or a supplement to the
related Prospectus or any document incorporated therein by reference or file any
other required document that would be incorporated by reference into such
Registration Statement and Prospectus so that such Registration Statement does
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 such Prospectus does 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, in the light of the
circumstances under which they were made, not misleading, as thereafter
delivered to the purchasers of the Registrable Securities being

                                       11
<PAGE>

sold thereunder, and, in the case of a post-effective amendment to a
Registration Statement, subject to the next sentence, use all reasonable efforts
to cause it to be declared effective as promptly as is reasonably practicable,
and (ii) give notice to the Notice Holders that the availability of the Shelf
Registration Statement is suspended (a "Deferral Notice") and, upon receipt of
any Deferral Notice, each Notice Holder agrees not to sell any Registrable
Securities pursuant to the Registration Statement until such Notice Holder's
receipt of copies of the supplemented or amended Prospectus provided for in
clause (i) above, or until it is advised in writing by the Company that the
Prospectus may be used, and has received copies of any additional or
supplemental filings that are incorporated or deemed incorporated by reference
in such Prospectus. The Company will use all reasonable efforts to ensure that
the use of the Prospectus may be resumed (x) in the case of clause (A) above, as
promptly as is practicable, (y) in the case of clause (B) above, as soon as, in
the sole judgment of the Company, public disclosure of such Material Event would
not be prejudicial to or contrary to the interests of the Company or, if
necessary to avoid unreasonable burden or expense, as soon as reasonably
practicable thereafter and (z) in the case of clause (C) above, as soon as, in
the discretion of the Company, such suspension is no longer appropriate. The
period during which the availability of the Registration Statement and any
Prospectus is suspended (the "Deferral Period") shall, without the Company
incurring any obligation to pay liquidated damages pursuant to Section 2(e), not
exceed forty-five (45) days in any three (3) month period or one hundred and
twenty (120) days in any twelve (12) month period.

       (j) If reasonably requested in writing in connection with a disposition
of Registrable Securities pursuant to a Registration Statement, make reasonably
available for inspection during normal business hours by a representative for
the Notice Holders of such Registrable Securities and any broker-dealers,
attorneys and accountants retained by such Notice Holders, all relevant
financial and other records, pertinent corporate documents and properties of the
Company and its subsidiaries, and cause the appropriate executive officers,
directors and designated employees of the Company and its subsidiaries to make
reasonably available for inspection during normal business hours all relevant
information reasonably requested by such representative for the Notice Holders
or any such broker-dealers, attorneys or accountants in connection with such
disposition, in each case as is customary for similar "due diligence"
examinations; provided, however, that such persons shall first agree in writing
with the Company that any information that is reasonably and in good faith
designated by the Company in writing as confidential at the time of delivery of
such information shall be kept confidential by such persons and shall be used
solely for the purposes of exercising rights under this Agreement, unless (i)
disclosure of such information is required by court or administrative order or
is necessary to respond to inquiries of regulatory authorities, (ii) disclosure
of such information is required by law (including any disclosure requirements
pursuant to federal securities laws in connection with the filing of any
Registration Statement or the use of any Prospectus referred to in this
Agreement), (iii) such information becomes generally available to the public
other than as a result of a

                                       12
<PAGE>

disclosure or failure to safeguard by any such person or (iv) such information
becomes available to any such person from a source other than the Company and
such source is not bound by a confidentiality agreement; and provided further,
that the foregoing inspection and information gathering shall, to the greatest
extent possible, be coordinated on behalf of all the Notice Holders and the
other parties entitled thereto by the counsel referred to in Section 5.

       (k) Comply with all applicable rules and regulations of the SEC and make
generally available to its securityholders earning statements (which need not be
audited) satisfying the provisions of Section 11(a) of the Securities Act and
Rule 158 thereunder (or any similar rule promulgated under the Securities Act)
no later than 45 days after the end of any 12-month period (or 90 days after the
end of any 12-month period if such period is a fiscal year) commencing on the
first day of the first fiscal quarter of the Company commencing after the
effective date of a Registration Statement, which statements shall cover said
12-month periods.

       (l) Cooperate with each Notice Holder to facilitate the timely
preparation and delivery of certificates representing Registrable Securities
sold pursuant to a Registration Statement, and cause such Registrable Securities
to be in such denominations as are permitted by the Indenture and registered in
such names as such Notice Holder may request in writing at least two Business
Days prior to any sale of such Registrable Securities.

       (m) Provide a CUSIP number for all Registrable Securities covered by each
Registration Statement not later than the effective date of such Registration
Statement and provide the Trustee for the LYONs and the transfer agent for the
Common Shares with printed certificates for the Registrable Securities that are
in a form eligible for deposit with The Depository Trust Company.

       (n) Make a reasonable effort to provide such information as is required
for any filings required to be made with the National Association of Securities
Dealers, Inc.

       (o) Upon (i) the filing of the Initial Shelf Registration Statement and
(ii) the effectiveness of the Initial Shelf Registration Statement, announce the
same, in each case by release to Reuters Economic Services and Bloomberg
Business News.

       (p) Enter into such customary agreements and take all such other
reasonable necessary actions in connection therewith (including those reasonably
requested by the holders of a majority of the Registrable Securities being sold)
in order to expedite or facilitate disposition of such Registrable Securities;
and

                                       13
<PAGE>

       (q) Cause the Indenture to be qualified under the TIA not later than the
effective date of any Registration Statement; and in connection therewith,
cooperate with the Trustee to effect such changes to the Indenture as may be
required for the Indenture to be so qualified in accordance with the terms of
the TIA and execute, and use all reasonable efforts to cause the Trustee to
execute, all documents as may be required to effect such changes, and all other
forms and documents required to be filed with the SEC to enable the Indenture to
be so qualified in a timely manner.

       Section 4.    Holder's Obligations.  Each Holder agrees, by acquisition
                     --------------------
of the Registrable Securities, that no Holder of Registrable Securities shall be
entitled to sell any of such Registrable Securities pursuant to a Registration
Statement or to receive a Prospectus relating thereto, unless such Holder has
furnished the Company with a Notice and Questionnaire as required pursuant to
Section 2(d) hereof (including the information required to be included in such
Notice and Questionnaire) and the information set forth in the next sentence.
Each Notice Holder agrees promptly to furnish to the Company all information
required to be disclosed in order to make the information previously furnished
to the Company by such Notice Holder not misleading and any other information
regarding such Notice Holder and the distribution of such Registrable Securities
as may be required to be disclosed in the Registration Statement under
applicable law or pursuant to SEC comments or as the Company may reasonably
request. Each Holder further agrees, following termination of the Effectiveness
Period, to notify the Company within 10 business days of request, of the amount
of Registrable Securities sold pursuant to the Registration Statement and, in
the absence of a response, the Company may assume that all of the Holder's
Registrable Securities were so sold.

       Section 5.    Registration Expenses. The Company shall bear all fees and
                     ---------------------
expenses incurred in connection with the performance by the Company of its
obligations under Sections 2 and 3 of this Agreement whether or not any of the
Registration Statements are declared effective. Such fees and expenses shall
include, without limitation, (i) all registration and filing fees (including,
without limitation, fees and expenses (x) with respect to filings required to be
made with the National Association of Securities Dealers, Inc. and (y) of
compliance with federal and state securities or Blue Sky laws (including,
without limitation, reasonable fees and disbursements of the counsel specified
in the next sentence in connection with Blue Sky qualifications of the
Registrable Securities under the laws of such jurisdictions as the Notice
Holders of a majority of the Registrable Securities being sold pursuant to a
Registration Statement may designate)), (ii) printing expenses (including,
without limitation, expenses of printing certificates for Registrable Securities
in a form eligible for deposit with The Depository Trust Company), (iii)
duplication expenses relating to copies of any Registration Statement or
Prospectus delivered to any Holders hereunder, (iv) fees and disbursements of
counsel for the Company in connection with the Shelf Registration Statement, and
(v) reasonable fees and disbursements of the Trustee and its

                                       14
<PAGE>

counsel and of the registrar and transfer agent for the Common Shares. In
addition, the Company shall bear or reimburse the Notice Holders for the fees
and disbursements of one firm of legal counsel for the Holders (which shall not
exceed $20,000 in the aggregate), which shall, upon the written consent of the
Initial Purchaser (which shall not be unreasonably withheld), be a nationally
recognized law firm experienced in securities law matters designated by the
Company. In addition, the Company shall pay the internal expenses of the Company
(including, without limitation, all salaries and expenses of officers and
employees performing legal or accounting duties), the expense of any annual
audit, the fees and expenses incurred in connection with the listing of the
Registrable Securities on any securities exchange on which similar securities of
the Company are then listed and the fees and expenses of any person, including
special experts, retained by the Company.

       Section 6.    Indemnification; Contribution.  (a)  The Company agrees to
                     -----------------------------
indemnify and hold harmless the Initial Purchaser and each holder of Registrable
Securities and each person, if any, who controls the Initial Purchaser or any
holder of Registrable Securities within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act, as follows:

       (i)   against any and all loss, liability, claim, damage and expense
   whatsoever, as incurred, arising out of any untrue statement or alleged
   untrue statement of a material fact contained in the Registration Statement
   (or any amendment thereto), or the omission or alleged omission therefrom of
   a material fact necessary in order to make the statements therein, in light
   of the circumstances under which they were made, not misleading or arising
   out of any untrue statement or alleged untrue statement of a material fact
   included in any preliminary prospectus or the Prospectus (or any amendment or
   supplement thereto), or the omission or alleged omission therefrom of a
   material fact necessary in order to make the statements therein, in the light
   of the circumstances under which they were made, not misleading;

       (ii)  against any and all loss, liability, claim, damage and expense
   whatsoever, as incurred, to the extent of the aggregate amount paid in
   settlement of any litigation, or any investigation or proceeding by any
   governmental agency or body, commenced or threatened, or of any claim
   whatsoever based upon any such untrue statement or omission, or any such
   alleged untrue statement or omission, provided that (subject to Section 6(d)
   below) any such settlement is effected with the prior written consent of the
   Company; and

       (iii) subject to Section 6(c) below, against any and all expense
   whatsoever, as incurred (including the fees and disbursements of counsel),
   reasonably incurred in investigating, preparing or defending against any
   litigation, or any investigation or proceeding by any governmental agency or
   body, commenced or threatened, or any

                                       15
<PAGE>

  claim whatsoever based upon any such untrue statement or omission, or any such
  alleged untrue statement or omission, to the extent that any such expense is
  not paid under (i) or (ii) above;

provided, however, that this indemnity agreement shall not apply to any loss,
--------  -------
liability, claim, damage or expense to the extent arising out of any untrue
statement or omission or alleged untrue statement or omission made in reliance
upon and in conformity with written information furnished to the Company by or
on behalf of the Initial Purchaser, such holder of Registrable Securities (which
also acknowledges the indemnity provisions herein) or any person, if any, who
controls the Initial Purchaser or any such holder of Registrable Securities
expressly for use in the Registration Statement (or any amendment thereto), or
any preliminary prospectus or the Prospectus (or any amendment or supplement
thereto); provided, further, that this indemnity agreement shall not apply to
any loss, liability, claim, damage or expense (1) arising from an offer or sale
of Registrable Securities occurring during a Deferral Period, if Notice Holder
received a Deferral Notice, or (2) if the Holder fails to deliver at or prior to
the written confirmation of sale, the most recent Prospectus, as amended or
supplemented, and such Prospectus, as amended or supplemented, would have
corrected such untrue statement or omission or alleged untrue statement or
omission of a material fact.

       (b)  In connection with any Shelf Registration in which a holder,
including, without limitation, the Initial Purchaser, of Registrable Securities
is participating, in furnishing information relating to such holder of
Registrable Securities to the Company in writing expressly for use in such
Registration Statement, any preliminary prospectus, the Prospectus or any
amendments or supplements thereto, the holders of such Registrable Securities
agree, severally and not jointly, to indemnify and hold harmless the Initial
Purchaser and each person, if any, who controls the Initial Purchaser within the
meaning of either Section 15 of the Securities Act or Section 20 of the Exchange
Act and the Company, and each person, if any, who controls the Company within
the meaning of either such Section, against any and all loss, liability, claim,
damage and expense described in the indemnity contained in subsection (a) of
this Section, as incurred, but only with respect to untrue statements or
omissions, or alleged untrue statements or omissions, made in the Registration
Statement (or any amendment thereto), or any preliminary prospectus or the
Prospectus (or any amendment or supplement thereto) in reliance upon and in
conformity with written information furnished to the Company by or on behalf of
such holder of Registrable Securities (which also acknowledges the indemnity
provisions herein) or any person, if any, who controls any such holder of
Registrable Securities expressly for use in the Registration Statement (or any
amendment thereto) or such preliminary prospectus or the Prospectus (or any
amendment or supplement thereto).

       The Initial Purchaser agrees to indemnify and hold harmless the Company,
the holders of Registrable Securities, and each person, if any, who controls the
Company or any

                                       16
<PAGE>

holder of Registrable Securities within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act against any and all loss,
liability, claim, damage and expense described in the indemnity contained in
subsection (a) of this Section, as incurred, but only with respect to untrue
statements or omissions, or alleged untrue statements or omissions, made in the
Registration Statement (or any amendment thereto), or any preliminary prospectus
or the Prospectus (or any amendment or supplement thereto) in reliance upon and
in conformity with written information furnished to the Company by or on behalf
of the Initial Purchaser expressly for use in the Registration Statement (or any
amendment thereto) or such preliminary prospectus or the Prospectus (or any
amendment or supplement thereto).

       (c)  Each indemnified party shall give notice as promptly as reasonably
practicable to each indemnifying party of any action commenced against it in
respect of which indemnity may be sought hereunder, but failure to so notify an
indemnifying party shall not relieve such indemnifying party from any liability
hereunder to the extent it is not materially prejudiced as a result thereof and
in any event shall not relieve it from any liability which it may have otherwise
than on account of this indemnity agreement. The indemnifying party, upon
request of the indemnified party, shall retain counsel reasonably satisfactory
to the indemnified party to represent the indemnified party and any others the
indemnifying party may designate in such proceeding and shall pay the fees and
disbursements of such counsel related to such proceeding. In any such
proceeding, any indemnified party shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of
such indemnified party unless (i) the indemnifying party and the indemnified
party shall have mutually agreed to the retention of such counsel or (ii) the
named parties to any such proceeding (including any impleaded parties) include
both the indemnifying party and the indemnified party and representation of both
parties by the same counsel would be inappropriate due to actual or potential
differing interests between them. It is understood that the indemnifying party
shall not, in respect of the legal expenses of any indemnified party in
connection with any proceeding or related proceedings in the same jurisdiction,
be liable for (a) the fees and expenses of more than one separate firm (in
addition to any local counsel) for the Initial Purchaser, Holders of Registrable
Securities, and all persons, if any, who control the Initial Purchaser or
Holders of Registrable Securities within the meaning of either Section 15 of the
1933 Act or Section 20 of the 1934 Act, (b) the fees and expenses of more than
one separate firm (in addition to any local counsel) for the Company, its
directors, and each person, if any, who controls the Company within the meaning
of either such Section, and that all such fees and expenses shall be reimbursed
as they are incurred. In the case of any such separate firm for the Initial
Purchaser, Holders of Registrable Securities, and control persons of the Initial
Purchaser and Holders of Registrable Securities, such firm shall be designated
in writing by the Initial Purchaser. In the case of any such separate firm for
the Company, and such directors, officers and control persons of the Company,
such firm shall be designated in writing by the Company. The indemnifying party
shall not be liable for any settlement of any

                                       17
<PAGE>

proceeding effected without its written consent, but if settled with such
consent or if there be a final judgment for the plaintiff, the indemnifying
party agrees to indemnify the indemnified party from and against any loss or
liability by reason of such settlement or judgment. Notwithstanding the
foregoing sentence, if at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for fees and expenses of
counsel as contemplated by the second and third sentences of this paragraph, the
indemnifying party agrees that it shall be liable for any settlement of any
proceeding effected without its written consent if (i) such settlement is
entered into more than 30 days after receipt by such indemnifying party of the
aforesaid request and (ii) such indemnifying party shall not have reimbursed the
indemnified party in accordance with such request prior to the date of such
settlement. No indemnifying party shall, without the prior written consent of
the indemnified parties, settle or compromise or consent to the entry of any
judgment with respect to any litigation, or any investigation or proceeding by
any governmental agency or body, commenced or threatened, or any claim
whatsoever in respect of which indemnification or contribution could be sought
under this Section 6 hereof (whether or not the indemnified parties are actual
or potential parties thereto), unless such settlement, compromise or consent (i)
includes an unconditional release of each indemnified party from all liability
arising out of such litigation, investigation, proceeding or claim and (ii) does
not include a statement as to or an admission of fault, culpability or a failure
to act by or on behalf of any indemnified party.

       (d)  If at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for fees and expenses of
counsel, such indemnifying party agrees that it shall be liable for any
settlement of the nature contemplated by Section 6(a)(ii) effected without its
written consent if (i) such settlement is entered into more than 60 days after
receipt by such indemnifying party of aforesaid request, (ii) such indemnifying
party shall have received notice of the terms of such settlement at least 30
days prior to such settlement being entered into and (iii) such indemnifying
party shall not have reimbursed such indemnified party in accordance with such
request prior to the date of such settlement.

       (e)  If the indemnification provided for in this Section 6 is for any
reason unavailable to or insufficient to hold harmless an indemnified party in
respect of any losses, liabilities, claims, damages or expenses referred to
therein, then each indemnifying party shall contribute to the aggregate amount
of such losses, liabilities, claims, damages and expenses incurred by such
indemnified party, as incurred, in such proportion as is appropriate to reflect
the relative fault of the indemnifying party or parties on the one hand and of
the indemnified party on the other hand in connection with the statements or
omissions which resulted in such losses, liabilities, claims, damages or
expenses, as well as any other relevant equitable considerations.

                                       18
<PAGE>

       The relative fault of the Company on the one hand and the holders of the
Registrable Securities or the Initial Purchaser on the other hand shall be
determined by reference to, among other things, whether any such untrue or
alleged untrue statement of a material fact or omission or alleged omission to
state a material fact relates to information supplied by the Company or by the
holder of the Registrable Securities or the Initial Purchaser and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission.

       The parties hereto agree that it would not be just and equitable if
contribution pursuant to this Section 6(e) were determined by pro rata
allocation or by any other method of allocation which does not take account of
the equitable considerations referred to above in this Section 6(e). The
aggregate amount of losses, liabilities, claims, damages, and expenses incurred
by an indemnified party and referred to above in this Section 6(e) shall be
deemed to include any legal or other expenses reasonably incurred by such
indemnified party in investigating, preparing or defending against any
litigation, or any investigation or proceeding by any governmental agency or
body, commenced or threatened, or any claim whatsoever based upon any such
untrue or alleged untrue statement or omission or alleged omission.

       Notwithstanding the provisions of this Section 6, neither the holder of
any Registrable Securities nor the Initial Purchaser, shall be required to
indemnify or contribute any amount in excess of the amount by which the total
price at which the Registrable Securities sold by such holder of Registrable
Securities or by the Initial Purchaser, as the case may be, and distributed to
the public were offered to the public exceeds the amount of any damages that
such holder of Registrable Securities or the Initial Purchaser has otherwise
been required to pay by reason of such untrue or alleged untrue statement or
omission or alleged omission.

       No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the Securities Act) shall be entitled to contribution from any
person who was not guilty of such fraudulent misrepresentation.

       For purposes of this Section 6(e), each person, if any, who controls the
Initial Purchaser or any holder of Registrable Securities within the meaning of
Section 15 of the Securities Act or Section 20 of the Exchange Act shall have
the same rights to contribution as the Initial Purchaser or such holder, and
each person, if any, who controls the Company within the meaning of Section 15
of the Securities Act or Section 20 of the Exchange Act shall have the same
rights to contribution as the Company.

       Section 7.    Information Requirements.   The Company covenants that, if
                     ------------------------
at any time before the end of the Effectiveness Period the Company is not
subject to the

                                       19
<PAGE>

reporting requirements of the Exchange Act, it will cooperate with any Holder of
Registrable Securities and take such further reasonable action as any Holder of
Registrable Securities may reasonably request in writing (including, without
limitation, making such reasonable representations as any such Holder may
reasonably request), all to the extent required from time to time to enable such
Holder to sell Registrable Securities without registration under the Securities
Act within the limitation of the exemptions provided by Rule 144 and Rule 144A
under the Securities Act and customarily taken in connection with sales pursuant
to such exemptions. Upon the written request of any Holder of Registrable
Securities, the Company shall deliver to such Holder a written statement as to
whether it has complied with such filing requirements, unless such a statement
has been included in the Company's most recent report required to be filed and
filed pursuant to Section 13 or Section 15(d) of Exchange Act. Notwithstanding
the foregoing, nothing herein shall be deemed to require the Company to register
any of its securities under any section of the Exchange Act.

       Section 8.    Miscellaneous; No Conflicting Agreements.  The Company is
                     ----------------------------------------
not, as of the date hereof, a party to, nor shall it, on or after the date of
this Agreement, enter into, any agreement with respect to its securities that
conflicts with the rights granted to the Holders of Registrable Securities in
this Agreement. The Company represents and warrants that the rights granted to
the Holders of Registrable Securities hereunder do not in any way conflict with
the rights granted to the holders of the Company's securities under any other
agreements.

       (a) Amendments and Waivers.  The provisions of this Agreement, including
           ----------------------
the provisions of this sentence, may not be amended, modified or supplemented,
and waivers or consents to departures from the provisions hereof may not be
given, unless the Company has obtained the written consent of Holders of a
majority of the then outstanding Underlying Common Shares constituting
Registrable Securities (with Holders of LYONs deemed to be the Holders, for
purposes of this Section, of the number of outstanding shares of Underlying
Common Shares into which such LYONs are or would be convertible or exchangeable
as of the date on which such consent is requested).  Notwithstanding the
foregoing, a waiver or consent to depart from the provisions hereof with respect
to a matter that relates exclusively to the rights of Holders of Registrable
Securities whose securities are being sold pursuant to a Registration Statement
and that does not directly or indirectly affect the rights of other Holders of
Registrable Securities may be given by Holders of at least a majority of the
Registrable Securities being sold by such Holders pursuant to such Registration
Statement; provided, that the provisions of this sentence may not be amended,
modified, or supplemented except in accordance with the provisions of the
immediately preceding sentence. Each Holder of Registrable Securities
outstanding at the time of any such amendment, modification, supplement, waiver
or consent or thereafter shall be bound by any such amendment, modification,
supplement, waiver or consent effected pursuant to this Section 8(b), whether or
not any notice, writing or marking indicating such amendment,

                                       20
<PAGE>

modification, supplement, waiver or consent appears on the Registrable
Securities or is delivered to such Holder.

       (b)  Notices.  All notices and other communications provided for or
            -------
permitted hereunder shall (except with respect to the notice described in
Section 3(c)) be made in writing by hand delivery, by telecopier, by courier
guaranteeing overnight delivery or by first-class mail, return receipt
requested, and shall be deemed given (i) when made, if made by hand delivery,
(ii) upon confirmation, if made by telecopier, (iii) one (1) Business Day after
being deposited with such courier, if made by overnight courier or (iv) on the
date indicated on the notice of receipt, if made by first-class mail, to the
parties as follows:

       (w)  if to a Holder of Registrable Securities that is not a Notice
Holder, at the address for such Holder then appearing in the Registrar (as
defined in the Indenture);

       (x) if to a Notice Holder, at the most current address given by such
Holder to the Company in a Notice and Questionnaire or any amendment thereto;

       (y)  if to the Company, to:

            Tyco International Ltd.
            The Zurich Centre, Second Floor
            90 Pitts Bay Road
            Pembroke HM 08, Bermuda
            Attention:  Chief Corporate Counsel
            Telecopy No.:  441-295-9647

       with a copy to:

            Tyco International (US) Inc.
            9 West 57/th/ Street, 43/rd/ Floor
            New York, NY 10019
            Attention:  Chief Corporate Counsel
            Telecopy No.:  646-282-8554

       and

            Wilmer, Cutler & Pickering
            2445 M Street, N.W.
            Washington, D.C. 20037
            Attention:  Meredith B. Cross

                                       21
<PAGE>

            Telecopy No.:  202-663-6363

       and

       (z)  if to the Initial Purchaser, to:

            Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith
            Incorporated
            North Tower
            World Financial Center
            New York, New York  10281
            Attention: [                 ]
            Telecopy No.:  [                 ]

or to such other address as such person may have furnished to the other persons
identified in this Section 8(c) in writing in accordance herewith.

       (c)  Approval of Holders.  Whenever the consent or approval of Holders of
            -------------------
a specified percentage of Registrable Securities is required hereunder,
Registrable Securities held by the Company or its affiliates (as such term is
defined in Rule 405 under the Securities Act) (other than the Initial Purchaser
or subsequent Holders of Registrable Securities if such subsequent Holders are
deemed to be such affiliates solely by reason of their holdings of such
Registrable Securities) shall not be counted in determining whether such consent
or approval was given by the Holders of such required percentage.

       (d)  Successors and Assigns.  Any person who purchases any Registrable
            ----------------------
Securities from the Initial Purchaser shall be deemed, for purposes of this
Agreement, to be an assignee of the Initial Purchaser.  This Agreement shall
inure to the benefit of and be binding upon the successors and assigns of each
of the parties and shall inure to the benefit of and be binding upon each Holder
of any Registrable Securities.

       (e)  Counterparts.  This Agreement may be executed in any number of
            ------------
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be original and all of which taken together
shall constitute one and the same agreement.

       (f)  Headings.  The headings in this Agreement are for convenience of
            --------
reference only and shall not limit or otherwise affect the meaning hereof.

       (g)  Governing Law.  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
            -------------
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

                                       22
<PAGE>

       (h)  Severability.  If any term, provision, covenant or restriction of
            ------------
this Agreement is held to be invalid, illegal, void or unenforceable, the
remainder of the terms, provisions, covenants and restrictions set forth herein
shall remain in full force and effect and shall in no way be affected, impaired
or invalidated thereby, and the parties hereto shall use their best efforts to
find and employ an alternative means to achieve the same or substantially the
same result as that contemplated by such term, provision, covenant or
restriction, it being intended that all of the rights and privileges of the
parties shall be enforceable to the fullest extent permitted by law.

       (i)  Entire Agreement.  This Agreement is intended by the parties as a
            ----------------
final expression of their agreement and is intended to be a complete and
exclusive statement of the agreement and understanding of the parties hereto in
respect of the subject matter contained herein and the registration rights
granted by the Company with respect to the Registrable Securities.  Except as
provided in the Purchase Agreement, there are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein,
with respect to the registration rights granted by the Company with respect to
the Registrable Securities.  This Agreement supersedes all prior agreements and
undertakings among the parties with respect to such registration rights.

       (j)  Termination.  This Agreement and the obligations of the parties
            -----------
hereunder shall terminate upon the end of the Effectiveness Period, except for
any liabilities or obligations under Sections 4, 5 or 6 hereof and the
obligations to make payments of and provide for liquidated damages under Section
1(e) hereof to the extent such damages accrue prior to the end of the
Effectiveness Period, each of which shall remain in effect in accordance with
its terms.

                                       23
<PAGE>

       IN WITNESS WHEREOF, the parties have executed this Registration Rights
Agreement as of the date first written above.

                                    TYCO INTERNATIONAL LTD.

                                    By: /s/ Mark H. Swartz
                                       -------------------------------
                                        Name:
                                        Title:

Accepted as of the date
first above written:

MERRILL LYNCH & CO.
MERRILL LYNCH, PIERCE, FENNER & SMITH
     INCORPORATED

By:  MERRILL LYNCH, PIERCE, FENNER & SMITH
             INCORPORATED

By: /s/ Geoffrey Blythe
   -------------------------------
        Authorized Signatory

                                       24

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