<PAGE>
                                                                     Exhibit 4.2

                                  $157,500,000


                               PENTON MEDIA, INC.


                      11 7/8% SENIOR SECURED NOTES DUE 2007



                          REGISTRATION RIGHTS AGREEMENT



                                                                  March 28, 2002


Credit Suisse First Boston Corporation
Eleven Madison Avenue
New York, New York 10010-3629


Ladies and Gentlemen:


         Penton Media, Inc., a Delaware corporation (the "ISSUER"), proposes to
issue and sell to Credit Suisse First Boston Corporation (the "INITIAL
PURCHASER"), upon the terms set forth in a purchase agreement, dated as of March
21, 2002 (the "PURCHASE AGREEMENT"), $157,500,000 aggregate principal amount of
its 11 7/8% Series A Senior Secured Notes due 2007 (the "INITIAL SECURITIES") to
be guaranteed by the guarantors party to the Indenture (as defined below) (the
"GUARANTORS" and, collectively with the Issuer, the "COMPANY"). The Initial
Securities will be issued pursuant to an indenture (the "INDENTURE"), dated as
of the Closing Date (as defined below), among the Issuer, the Guarantors and
U.S. Bank National Association, as trustee (the "TRUSTEE"). As an inducement to
the Initial Purchaser to enter into the Purchase Agreement, the Company agrees
with the Initial Purchaser, for the benefit of the Initial Purchaser and the
holders of the Securities (as defined below) (collectively the "HOLDERS"), as
follows:

         1. Registered Exchange Offer. Unless not permitted by applicable law
(after the Company has complied with the ultimate paragraph of this Section 1),
the Company shall prepare and, not later than 90 days (such 90th day being a
"FILING DEADLINE") after the date hereof (the "CLOSING DATE"), file with the
Securities and Exchange Commission (the "COMMISSION") a registration statement
(the "EXCHANGE OFFER REGISTRATION STATEMENT") on an appropriate form under the
Securities Act of 1933, as amended (the "SECURITIES ACT"), with respect to a
proposed offer (the "REGISTERED EXCHANGE OFFER") to the Holders of Transfer
Restricted Securities (as
<PAGE>
defined in Section 6 hereof), who are not prohibited by any law or policy of the
Commission from participating in the Registered Exchange Offer, to issue and
deliver to such Holders, in exchange for the Initial Securities, a like
aggregate principal amount of debt securities of the Company issued under the
Indenture, identical in all material respects to the Initial Securities and
registered under the Securities Act (the "EXCHANGE SECURITIES"). The Company
shall use its best efforts to (i) cause such Exchange Offer Registration
Statement to become effective under the Securities Act within 180 days after the
Closing Date (such 180th day being an "EFFECTIVENESS DEADLINE") and (ii) keep
the Exchange Offer Registration Statement effective for not less than 30 days
(or longer, if required by applicable law) after the date notice of the
Registered Exchange Offer is mailed to the Holders (such period being called the
"EXCHANGE OFFER REGISTRATION PERIOD").


         If the Company commences the Registered Exchange Offer, the Company (i)
will be entitled to consummate the Registered Exchange Offer 30 days after such
commencement (provided that the Company has accepted all the Initial Securities
theretofore validly tendered in accordance with the terms of the Registered
Exchange Offer) and (ii) will be required to consummate the Registered Exchange
Offer no later than 40 days after the date on which the Exchange Offer
Registration Statement is declared effective (such 40th day being the
"CONSUMMATION DEADLINE"); provided, however, that if the Company is required by
applicable law to keep the Exchange Offer Registration Statement effective for
more than 30 days in accordance with clause (ii) in the preceding paragraph, the
Consummation Deadline shall be automatically extended by such number of days
exceeding 30 for which the Company is required by applicable law to keep the
Exchange Offer Registration Statement effective.


         Following the declaration of the effectiveness of the Exchange Offer
Registration Statement, the Company shall promptly commence the Registered
Exchange Offer, it being the objective of such Registered Exchange Offer to
enable each Holder of Transfer Restricted Securities electing to exchange the
Initial Securities for Exchange Securities (assuming that such Holder (i) is not
an affiliate of the Company within the meaning of the Securities Act, (ii) is
acquiring the Exchange Securities in the ordinary course of such Holder's
business, (iii) has no arrangements or understanding with any person to
participate, and is not participating, in the distribution of the Exchange
Securities and (iv) is not prohibited by any law or policy of the Commission
from participating in the Registered Exchange Offer) to trade such Exchange
Securities from and after their receipt without any limitations or restrictions
under the Securities Act and without material restrictions under the securities
laws of the several states of the United States.


                                       2
<PAGE>
      The Company acknowledges that, pursuant to current interpretations by the
Commission's staff of Section 5 of the Securities Act, in the absence of an
applicable exemption therefrom, (i) each Holder that is a broker-dealer electing
to exchange Initial Securities, acquired for its own account as a result of
market-making activities or other trading activities, for Exchange Securities
(an "EXCHANGING DEALER") is required to deliver a prospectus containing the
information substantially as set forth in (a) Annex A hereto on the cover, (b)
Annex B hereto in the "Exchange Offer Procedures" or similarly titled section
and the "Purpose of the Exchange Offer" or similarly titled section, and (c)
Annex C hereto in the "Plan of Distribution" section of such prospectus in
connection with a sale of any such Exchange Securities received by such
Exchanging Dealer pursuant to the Registered Exchange Offer and (ii) if the
Initial Purchaser elects to sell Exchange Securities or Private Exchange
Securities (as defined below) acquired in exchange for Initial Securities
constituting any portion of an unsold allotment, it is required to deliver a
prospectus containing the information required by Items 507 or 508 of Regulation
S-K under the Securities Act, as applicable, in connection with such sale.

      The Company shall use its best efforts to keep the Exchange Offer
Registration Statement effective and to amend and supplement the prospectus
forming a part thereof in order to permit such prospectus to be lawfully
delivered by all persons subject to the prospectus delivery requirements of the
Securities Act for such period of time as such persons must comply with such
requirements in order to resell the Exchange Securities; provided, however, that
(i) in the case where such prospectus and any amendment or supplement thereto
must be delivered by an Exchanging Dealer or the Initial Purchaser, such period
shall be the lesser of 180 days after the consummation of the Registered
Exchange Offer and the date on which all Exchanging Dealers and the Initial
Purchaser have sold all Exchange Securities held by them (unless such period is
extended pursuant to Section 3(j) below) and (ii) the Company shall make such
prospectus and any amendment or supplement thereto available to any
broker-dealer for use in connection with any resale of any Exchange Securities
for a period of not less than 180 days after the consummation of the Registered
Exchange Offer.

      If, upon consummation of the Registered Exchange Offer, the Initial
Purchaser holds Initial Securities acquired by it as part of its initial
distribution, the Company, simultaneously with the delivery of the Exchange
Securities pursuant to the Registered Exchange Offer, shall issue and deliver to
the Initial Purchaser, upon the written request of the Initial Purchaser, in
exchange (the "PRIVATE EXCHANGE") for the Initial Securities held by the Initial
Purchaser, a like principal amount of debt securities of the Company issued
under the Indenture and identical in all material


                                       3
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respects to the Initial Securities (the "PRIVATE EXCHANGE SECURITIES"). The
Initial Securities, the Exchange Securities and the Private Exchange Securities
are herein collectively called the "SECURITIES".

      In connection with the Registered Exchange Offer, the Company shall:

            (a) mail to each Holder a copy of the prospectus forming part of the
      Exchange Offer Registration Statement, together with an appropriate letter
      of transmittal and related documents;

            (b) keep the Registered Exchange Offer open for not less than 30
      days (or longer, if required by applicable law) after the date notice
      thereof is mailed to the Holders;

            (c) utilize the services of a depositary for the Registered Exchange
      Offer with an address in the Borough of Manhattan, The City of New York,
      which may be the Trustee or an affiliate of the Trustee;

            (d) permit Holders to withdraw tendered Initial Securities at any
      time prior to the close of business, New York time, on the last business
      day on which the Registered Exchange Offer shall remain open; and

            (e) otherwise comply with all applicable laws.

      As soon as practicable after the close of the Registered Exchange Offer or
the Private Exchange, as the case may be, the Company shall:

            (x) accept for exchange all the Initial Securities validly tendered
      and not withdrawn pursuant to the Registered Exchange Offer and the
      Private Exchange;

            (y) deliver to the Trustee for cancellation all the Initial
      Securities so accepted for exchange; and

            (z) cause the Trustee to authenticate and deliver promptly to each
      Holder of the Initial Securities, Exchange Securities or Private Exchange
      Securities, as the case may be, equal in principal amount to the Initial
      Securities of such Holder so accepted for exchange.


                                       4
<PAGE>
      Interest on each Exchange Security and Private Exchange Security issued
pursuant to the Registered Exchange Offer and in the Private Exchange will
accrue from the last interest payment date on which interest was paid on the
Initial Securities surrendered in exchange therefor or, if no interest has been
paid on the Initial Securities, from the date of original issue of the Initial
Securities.

      Each Holder participating in the Registered Exchange Offer shall be
required to represent to the Company that at the time of the consummation of the
Registered Exchange Offer (i) any Exchange Securities received by such Holder
will be acquired in the ordinary course of business, (ii) such Holder will have
no arrangements or understanding with any person to participate in the
distribution of the Initial Securities or the Exchange Securities within the
meaning of the Securities Act, (iii) such Holder is not an "affiliate," as
defined in Rule 405 under the Securities Act, of the Company or, if it is an
affiliate, such Holder will comply with the registration and prospectus delivery
requirements of the Securities Act to the extent applicable, (iv) if such Holder
is not a broker-dealer, that it is not engaged in, and does not intend to engage
in, the distribution of the Exchange Securities and (v) if such Holder is a
broker-dealer, that it will receive Exchange Securities for its own account in
exchange for Initial Securities that were acquired as a result of market-making
activities or other trading activities and that it will be required to
acknowledge that it will deliver a prospectus in connection with any resale of
such Exchange Securities.

      Notwithstanding any other provisions hereof, the Company will ensure that
(i) any Exchange Offer Registration Statement and any amendment thereto and any
prospectus forming part thereof and any supplement thereto complies in all
material respects with the applicable requirements of the Securities Act and the
rules and regulations of the Commission, (ii) any Exchange Offer Registration
Statement and any amendment thereto does not, when it becomes effective, contain
an 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 not misleading
and (iii) any prospectus forming part of any Exchange Offer Registration
Statement, and any supplement to such prospectus, does not contain an untrue
statement of a material fact or omit 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.


      If following the date hereof there has been announced a change in
Commission policy with respect to exchange offers that in the reasonable opinion
of counsel to the Company raises a substantial question as to whether the
Registered Exchange Offer is permitted by applicable federal law, the Company
will use its best


                                       5
<PAGE>
efforts to seek a no-action letter or other favorable decision from the
Commission allowing the Company to consummate the Registered Exchange Offer. The
Company will pursue the issuance of such a decision to the Commission staff
level. In connection with the foregoing, the Company will take all such other
actions as may be reasonably requested by the Commission or otherwise required
in connection with the issuance of such decision, including without limitation
(i) participating in telephonic conferences with the Commission, (ii) delivering
to the Commission staff an analysis prepared by counsel to the Company setting
forth the legal bases, if any, upon which such counsel has concluded that the
Registered Exchange Offer should be permitted and (iii) diligently pursuing a
resolution (which need not be favorable) by the Commission staff.
Notwithstanding the foregoing, if at the time the Company is required to
commence or consummate the Registered Exchange Offer the Commission prohibits
exchange offers such as the Registered Exchange Offer, the Company will not be
obligated to seek such a no-action letter or other favorable decision from the
Commission.

      2. Shelf Registration. If, (i) because of any change in law or in
applicable interpretations thereof by the staff of the Commission, the Company
is not permitted to effect a Registered Exchange Offer, as contemplated by
Section 1 hereof, (ii) the Registered Exchange Offer is not consummated by the
180th day after the Closing Date, (iii) the Initial Purchaser so requests, in a
written notice delivered to the Company, with respect to the Initial Securities
(or the Private Exchange Securities) not eligible to be exchanged for Exchange
Securities in the Registered Exchange Offer and held by it following
consummation of the Registered Exchange Offer or (iv) any Holder (other than an
Exchanging Dealer) is not eligible to participate in the Registered Exchange
Offer or, in the case of any Holder (other than an Exchanging Dealer) that
participates in the Registered Exchange Offer, such Holder does not receive
freely tradeable Exchange Securities upon consummation of the Registered
Exchange Offer and any such Holder so requests, in a written notice delivered to
the Company, the Company shall take the following actions (the date on which any
of the conditions described in the foregoing clauses (i) through (iv) occur,
including in the case of clauses (iii) or (iv) the receipt of the required
notice, being a "TRIGGER DATE"):


            (a) The Company shall promptly (but in no event more than 45 days
      after the Trigger Date (such 45th day being a "FILING DEADLINE")) file
      with the Commission and thereafter use its best efforts to cause to be
      declared effective no later than 140 days after the Trigger Date (such
      140th day being an "EFFECTIVENESS DEADLINE") a registration statement (the
      "SHELF REGISTRATION STATEMENT" and, together with the Exchange Offer
      Registration


                                       6
<PAGE>
      Statement, a "REGISTRATION STATEMENT") on an appropriate form under the
      Securities Act relating to the offer and sale of the Transfer Restricted
      Securities by the Holders thereof from time to time in accordance with the
      methods of distribution set forth in the Shelf Registration Statement and
      Rule 415 under the Securities Act (hereinafter, the "SHELF REGISTRATION");
      provided, however, that no Holder (other than the Initial Purchaser) shall
      be entitled to have the Securities held by it covered by such Shelf
      Registration Statement unless such Holder agrees in writing to be bound by
      all the provisions of this Agreement applicable to such Holder.

            (b) The Company shall use its best efforts to keep the Shelf
      Registration Statement continuously effective in order to permit the
      prospectus forming a part thereof to be lawfully delivered by the Holders
      of the Transfer Restricted Securities, for a period of two years (or for
      such longer period if extended pursuant to Section 3(j) below) from the
      date of its effectiveness or such shorter period that will terminate when
      all the Transfer Restricted Securities covered by the Shelf Registration
      Statement (i) have been sold pursuant thereto or (ii) are no longer
      "restricted securities" (as defined in Rule 144 under the Securities Act,
      or any successor rule thereof). The Company shall be deemed not to have
      used its best efforts to keep the Shelf Registration Statement effective
      during the requisite period if it voluntarily takes any action that would
      result in Holders of Securities covered thereby not being able to offer
      and sell such Securities during that period, unless such action is
      required by applicable law or is expressly permitted by this Agreement.

            (c) Notwithstanding any other provisions of this Agreement to the
      contrary, the Company shall cause the Shelf Registration Statement and the
      related prospectus and any amendment or supplement thereto, as of the
      effective date of the Shelf Registration Statement, amendment or
      supplement, (i) to comply in all material respects with the applicable
      requirements of the Securities Act and the rules and regulations of the
      Commission and (ii) not to contain any untrue statement of a material fact
      or omit to state a material fact required to be stated therein or
      necessary in order to make the statements therein, in light of the
      circumstances under which they were made, not misleading.

      3. Registration Procedures. In connection with any Shelf Registration
contemplated by Section 2 hereof and, to the extent applicable, any Registered


                                       7
<PAGE>
Exchange Offer contemplated by Section 1 hereof, the following provisions
shall apply:

            (a) The Company shall (i) furnish to the Initial Purchaser, prior to
      the filing thereof with the Commission, a copy of the Registration
      Statement and each amendment thereof and each supplement, if any, to the
      prospectus included therein and, in the event that the Initial Purchaser
      (with respect to any portion of an unsold allotment from the original
      offering of Initial Securities) is participating in the Registered
      Exchange Offer or the Shelf Registration Statement, the Company shall use
      its best efforts to reflect in each such document, when so filed with the
      Commission, those comments as the Initial Purchaser reasonably may propose
      within a reasonable time after receiving any such document; (ii) include
      the information substantially as set forth in Annex A hereto on the cover,
      in Annex B hereto in the "Exchange Offer Procedures" or similarly titled
      section and the "Purpose of the Exchange Offer" or similarly titled
      section and in Annex C hereto in the "Plan of Distribution" section of the
      prospectus forming a part of the Exchange Offer Registration Statement and
      include the information substantially as set forth in Annex D hereto in
      the Letter of Transmittal delivered pursuant to the Registered Exchange
      Offer; (iii) if requested by the Initial Purchaser within a reasonable
      time after receiving any such document, include the information required
      by Items 507 or 508 of Regulation S-K under the Securities Act, as
      applicable, in the prospectus forming a part of the Exchange Offer
      Registration Statement; (iv) include within the prospectus forming a part
      of the Exchange Offer Registration Statement a section entitled "Plan of
      Distribution," reasonably acceptable to the Initial Purchaser, which shall
      contain a summary statement of the positions taken or policies made by the
      staff of the Commission with respect to the potential "underwriter" status
      of any broker-dealer that is the beneficial owner (as defined in Rule
      13d-3 under the Securities Exchange Act of 1934, as amended (the "EXCHANGE
      ACT")) of Exchange Securities received by such broker-dealer in the
      Registered Exchange Offer (a "PARTICIPATING BROKER-DEALER"); whether such
      positions or policies have been publicly disseminated by the staff of the
      Commission or such positions or policies, in the reasonable judgment of
      the Initial Purchaser based upon advice of counsel (which may be in-house
      counsel), represent the prevailing views of the staff of the Commission;
      and (v) in the case of a Shelf Registration Statement, include the names
      of the Holders who propose to sell Securities pursuant to the Shelf
      Registration Statement as selling security holders.


                                       8
<PAGE>
            (b) The Company shall give written notice to the Initial Purchaser,
      the Holders of the Securities and any Participating Broker-Dealer from
      whom the Company has received prior written notice that it will be a
      Participating Broker-Dealer in the Registered Exchange Offer (which notice
      pursuant to clauses (ii)-(vi) hereof shall be accompanied by an
      instruction to suspend the use of the prospectus until any requisite
      changes have been made):

                  (i) when the Registration Statement or any amendment thereto
            has been filed with the Commission and when the Registration
            Statement or any post-effective amendment thereto has become
            effective;

                  (ii) of any request by the Commission for amendments or
            supplements to the Registration Statement or the prospectus forming
            a part thereof or for additional information;

                  (iii) of the issuance by the Commission of any stop order
            suspending the effectiveness of the Registration Statement or the
            initiation of any proceedings for that purpose;

                  (iv) of the receipt by the Company or its legal counsel of any
            notification with respect to (A) the suspension of the qualification
            of the Securities for sale in any jurisdiction or (B) the initiation
            or threatening of any proceeding for such purpose;

                  (v) of the happening of any event that requires the Company to
            make changes in the Registration Statement or the prospectus in
            order that the Registration Statement or the prospectus do not
            contain an untrue statement of a material fact nor omit to state a
            material fact required to be stated therein or necessary to make the
            statements therein (in the case of the prospectus, in light of the
            circumstances under which they were made) not misleading; and

                  (vi) of any good-faith determination by the Company that it is
            advisable to suspend use of the Registration Statement or the
            prospectus for a discrete period of time due to pending material
            corporate developments or similar material events that have not yet
            been publicly disclosed and as to which the Company reasonably
            believes public disclosure will be prejudicial to the Company.


                                       9
<PAGE>
            (c) The Company shall make every reasonable effort to obtain the
      withdrawal, at the earliest possible time, of any order suspending the
      effectiveness of the Registration Statement.

            (d) The Company shall furnish to each Holder of Securities included
      within the coverage of the Shelf Registration, without charge, at least
      one copy of the Shelf Registration Statement and any post-effective
      amendment thereto, including financial statements and schedules, and, if
      the Holder so requests in writing, all exhibits thereto (including those,
      if any, incorporated by reference).

            (e) The Company shall deliver to each Exchanging Dealer and the
      Initial Purchaser, and to any other Holder who so requests, without
      charge, at least one copy of the Exchange Offer Registration Statement and
      any post-effective amendment thereto, including financial statements and
      schedules, and, if the Initial Purchaser or any such Holder requests, all
      exhibits thereto (including those incorporated by reference).

            (f) The Company shall, during the Shelf Registration Period, deliver
      to each Holder of Securities included within the coverage of the Shelf
      Registration, without charge, as many copies of the prospectus (including
      each preliminary prospectus) forming a part of the Shelf Registration
      Statement and any amendment or supplement thereto as such person may
      reasonably request. The Company consents, subject to the provisions of
      this Agreement, to the use of the prospectus or any amendment or
      supplement thereto by each of the selling Holders of the Securities in
      connection with the offering and sale of the Securities covered by the
      prospectus, or any amendment or supplement thereto, forming a part of the
      Shelf Registration Statement.

            (g) The Company shall deliver to the Initial Purchaser, any
      Exchanging Dealer, any Participating Broker-Dealer and such other persons
      required to deliver a prospectus following the Registered Exchange Offer,
      without charge, as many copies of the final prospectus included in the
      Exchange Offer Registration Statement and any amendment or supplement
      thereto as such persons may reasonably request. The Company consents,
      subject to the provisions of this Agreement, to the use of the prospectus
      or any amendment or supplement thereto by the Initial Purchaser, if
      necessary, any Participating Broker-Dealer and such other persons required
      to deliver a prospectus following the Registered Exchange Offer in
      connection with the


                                       10
<PAGE>
      offering and sale of the Exchange Securities covered by the prospectus, or
      any amendment or supplement thereto, forming a part of such Exchange Offer
      Registration Statement.

            (h) Prior to any public offering of the Securities pursuant to any
      effective Registration Statement, the Company shall use its best efforts
      to register or qualify or cooperate with the Holders of the Securities
      included therein and their respective counsel in connection with the
      registration or qualification of the Securities for offer and sale under
      the securities or "blue sky" laws of such states of the United States as
      any Holder of the Securities reasonably requests in writing and do any and
      all other acts or things necessary or advisable to enable the offer and
      sale in such jurisdictions of the Securities covered by such Registration
      Statement; provided, however, that the Company shall not be required to
      (i) qualify generally to do business in any jurisdiction where it is not
      then so qualified or (ii) take any action which would subject it to
      general service of process or to taxation in any jurisdiction where it is
      not then so subject.

            (i) The Company shall cooperate with the Holders of the Securities
      to facilitate the timely preparation and delivery of certificates, if any,
      representing the Securities to be sold pursuant to any Registration
      Statement free of any restrictive legends and in such denominations and
      registered in such names as the Holders may request a reasonable period of
      time prior to sales of the Securities pursuant to such Registration
      Statement.

            (j) Upon the occurrence of any event contemplated by paragraphs (ii)
      through (vi) of Section 3(b) above during the period for which the Company
      is required to maintain an effective Registration Statement, the Company
      shall promptly prepare and file any requisite post-effective amendment to
      the Registration Statement, any requisite supplement to the related
      prospectus or any other required document so that, as thereafter delivered
      to Holders of the Securities or purchasers of Securities, the prospectus
      will not contain 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 were
      made, not misleading. If the Company notifies the Initial Purchaser, the
      Holders of the Securities and any known Participating Broker-Dealer in
      accordance with paragraphs (ii) through (vi) of Section 3(b) above to
      suspend the use of the prospectus, then the Initial Purchaser, the Holders
      of the Securities and any such Participating Broker-Dealers shall suspend
      use of such prospectus, and the period of effectiveness


                                       11
<PAGE>
      of the Shelf Registration Statement provided for in Section 2(b) above and
      the Exchange Offer Registration Statement provided for in Section 1 above
      shall each be extended by the number of days from and including the date
      of the giving of such notice to and including the date when the Initial
      Purchaser, the Holders of the Securities and any known Participating
      Broker-Dealer shall have received any amended or supplemented prospectus
      pursuant to this Section 3(j) or shall have received written notice from
      the Company that the prospectus is again usable.

            (k) Not later than the effective date of the applicable Registration
      Statement, the Company will provide a CUSIP number for the Initial
      Securities, the Exchange Securities or the Private Exchange Securities, as
      the case may be, and provide the applicable trustee with printed
      certificates for the Initial Securities, the Exchange Securities or the
      Private Exchange Securities, as the case may be, in a form eligible for
      deposit with The Depository Trust Company.

            (l) The Company will comply with all rules and regulations of the
      Commission to the extent and so long as they are applicable to the
      Registered Exchange Offer or the Shelf Registration and will make
      generally available to its security holders (or otherwise provide in
      accordance with Section 11(a) of the Securities Act and Rule 158
      promulgated thereunder) an earnings statement satisfying the provisions of
      Section 11(a) of the Securities Act and Rule 158 promulgated thereunder,
      no later than 45 days after the end of a 12-month period (or 90 days, if
      such period is a fiscal year) beginning with the first month of the
      Company's first fiscal quarter commencing after the effective date of the
      Registration Statement, which statement shall cover such 12-month period.

            (m) The Company shall cause the Indenture to be qualified under the
      Trust Indenture Act of 1939, as amended, in a timely manner and containing
      such changes, if any, as shall be necessary for such qualification. In the
      event that such qualification would require the appointment of a new
      trustee under the Indenture, the Company shall appoint a new trustee
      thereunder pursuant to the applicable provisions of the Indenture.

            (n) The Company may require each Holder of Transfer Restricted
      Securities to be sold pursuant to the Shelf Registration Statement to
      furnish to the Company such information regarding the Holder and the
      distribution of the Securities as the Company may from time to time
      reasonably require for


                                       12
<PAGE>
      inclusion in the Shelf Registration Statement, and the Company may exclude
      from such registration the Securities of any Holder that fails to furnish
      such information within a reasonable time after receiving such request.

            (o) The Company shall enter into such customary agreements
      (including, if requested, an underwriting agreement in customary form) and
      take all such other action, if any, as any Holder of the Securities shall
      reasonably request in order to facilitate the disposition of the
      Securities pursuant to any Shelf Registration.

            (p) In the case of any Shelf Registration, the Company shall, (i)
      make reasonably available for inspection by the Holders of the Securities,
      any underwriter participating in any disposition pursuant to the Shelf
      Registration Statement and any attorney, accountant or other agent
      retained by the Holders of the Securities or any such underwriter all
      relevant financial and other records, pertinent corporate documents and
      properties of the Company and (ii) cause the Company's officers,
      directors, employees, accountants and auditors to supply all relevant
      information reasonably requested by the Holders of the Securities or any
      such underwriter, attorney, accountant or agent in connection with the
      Shelf Registration Statement, in each case, as shall be reasonably
      necessary to enable such persons, to conduct a reasonable investigation
      within the meaning of Section 11 of the Securities Act; provided, however,
      that the foregoing inspection and information gathering shall be
      coordinated by the Initial Purchaser on its own behalf, and on behalf of
      the other parties, by one counsel designated by and on behalf of such
      other parties as described in Section 4 hereof and provided further that
      the foregoing inspection and information gathering shall be subject to any
      confidentiality procedures reasonably instituted by the Company.

            (q) In the case of any Shelf Registration, the Company shall (i), if
      requested by the Holders of not less than a majority in aggregate
      principal amount of the Securities covered thereby, cause (A) its counsel
      to deliver an opinion and updates thereof relating to the Securities in
      customary form addressed to such Holders and the Managing Underwriters (as
      defined below), if any, thereof and dated, in the case of the initial
      opinion, the effective date of such Shelf Registration Statement (it being
      agreed that the matters to be covered by such opinion shall include,
      without limitation, matters similar to those set forth in Section 6(c) of
      the Purchase Agreement); and (B) its independent public accountants and
      the independent public accountants with respect to any other entity for
      which financial information is


                                       13
<PAGE>
      provided in the Shelf Registration Statement to provide to the selling
      Holders of the applicable Securities and any underwriter therefor a
      comfort letter in customary form and covering matters of the type
      customarily covered in comfort letters in connection with primary
      underwritten offerings, subject to receipt of appropriate documentation as
      contemplated, and only if permitted, by Statement of Auditing Standards
      No. 72.; and (ii) cause its officers to execute and deliver all customary
      documents and certificates and updates thereof requested by any
      underwriters of the applicable Securities.

            (r) In the case of the Registered Exchange Offer, if requested by
      the Initial Purchaser or any known Participating Broker-Dealer, the
      Company shall cause (i) its counsel to deliver to the Initial Purchaser or
      such Participating Broker-Dealer a signed opinion in the form set forth in
      Section 6(c) of the Purchase Agreement with such changes as are customary
      in connection with the preparation of a Registration Statement and (ii)
      its independent public accountants and the independent public accountants
      with respect to any other entity for which financial information is
      provided in the Registration Statement to deliver to the Initial Purchaser
      or such Participating Broker-Dealer a comfort letter, in customary form,
      meeting the requirements as to the substance thereof as set forth in
      Section 6(a) of the Purchase Agreement, with appropriate date changes.

            (s) If a Registered Exchange Offer or a Private Exchange is to be
      consummated, upon delivery of the Initial Securities by Holders to the
      Company (or to such other Person as directed by the Company) in exchange
      for the Exchange Securities or the Private Exchange Securities, as the
      case may be, the Company shall mark, or caused to be marked, on the
      Initial Securities so exchanged that such Initial Securities are being
      canceled in exchange for the Exchange Securities or the Private Exchange
      Securities, as the case may be; in no event shall the Initial Securities
      be marked as paid or otherwise satisfied.

            (t) The Company will use its best efforts to (i) if the Initial
      Securities have been rated prior to the initial sale of such Initial
      Securities, confirm such ratings will apply to the Securities covered by a
      Registration Statement, or (ii) if the Initial Securities were not
      previously rated, cause the Securities covered by a Registration Statement
      to be rated with the appropriate rating agencies, if so requested by the
      Holders of not less than a majority in aggregate principal amount of
      Securities covered by such Registration Statement, or by the Managing
      Underwriters, if any.


                                       14
<PAGE>
            (u) In the event that any broker-dealer registered under the
      Exchange Act shall underwrite any Securities or participate as a member of
      an underwriting syndicate or selling group or "assist in the distribution"
      (within the meaning of the Conduct Rules (the "RULES") of the National
      Association of Securities Dealers, Inc. ("NASD")) thereof, whether as a
      Holder of such Securities or as an underwriter, a placement or sales agent
      or a broker or dealer in respect thereof, or otherwise, the Company will
      use its best efforts to assist such broker-dealer in complying with the
      requirements of such Rules, including, without limitation, by (i) if such
      Rules, including Rule 2720, shall so require, engaging a "qualified
      independent underwriter" (as defined in Rule 2720) to participate in the
      preparation of the Registration Statement relating to such Securities, to
      exercise usual standards of due diligence in respect thereto and, if any
      portion of the offering contemplated by such Registration Statement is an
      underwritten offering or is made through a placement or sales agent, to
      recommend the yield of such Securities, (ii) indemnifying any such
      qualified independent underwriter to the extent of the indemnification of
      underwriters provided in Section 5 hereof and (iii) providing such
      information to such broker-dealer as may be required in order for such
      broker-dealer to comply with the requirements of the Rules.

            (v) The Company shall use its best efforts to take all other steps
      necessary to effect the registration of the Securities covered by a
      Registration Statement contemplated hereby.

      4. Registration Expenses.

            (a) All expenses incident to the Company's performance of and
      compliance with this Agreement will be borne by the Company, regardless of
      whether a Registration Statement is ever filed or becomes effective,
      including, without limitation;

                  (i) all registration and filing fees and expenses;

                  (ii) all fees and expenses of compliance with federal
            securities and state "blue sky" or securities laws;

                  (iii) all expenses of printing (including printing
            certificates for the Securities to be issued in the Registered
            Exchange Offer and the


                                       15
<PAGE>
            Private Exchange and printing of prospectuses), messenger and
            delivery services and telephone;

                  (iv) all fees and disbursements of counsel for the Company;

                  (v) all application and filing fees in connection with listing
            the Exchange Securities on a national securities exchange or
            automated quotation system pursuant to the requirements hereof; and

                  (vi) all fees and disbursements of independent certified
            public accountants of the Company (including the expenses of any
            special audit and comfort letters required by or incident to such
            performance).

            The Company will bear its internal expenses (including, without
      limitation, all salaries and expenses of its officers and employees
      performing legal or accounting duties), the expenses of any annual audit
      and the fees and expenses of any person, including special experts,
      retained by the Company.

            (b) In connection with any Registration Statement required by this
      Agreement, the Company will reimburse the Initial Purchaser and the
      Holders of Transfer Restricted Securities who are tendering Initial
      Securities in the Registered Exchange Offer and/or selling or reselling
      Securities pursuant to the "Plan of Distribution" contained in the
      Exchange Offer Registration Statement or the Shelf Registration Statement,
      as applicable, for the reasonable fees and disbursements of not more than
      one counsel, who shall be chosen by the Holders of not less than a
      majority in principal amount of the Transfer Restricted Securities for
      whose benefit such Registration Statement is being prepared.

      5. Indemnification.

            (a) The Company agrees to indemnify and hold harmless each Holder of
      the Securities, any Participating Broker-Dealer and each person, if any,
      who controls such Holder or such Participating Broker-Dealer within the
      meaning of the Securities Act or the Exchange Act (each Holder, any
      Participating Broker-Dealer and such controlling persons are referred to
      collectively as the "INDEMNIFIED PARTIES") from and against any losses,
      claims, damages or liabilities, joint or several, or any actions in
      respect thereof (including, but not limited to, any losses, claims,
      damages, liabilities or actions relating to purchases and sales of the
      Securities) to which each


                                       16
<PAGE>
      Indemnified Party may become subject under the Securities Act, the
      Exchange Act or otherwise, insofar as such losses, claims, damages,
      liabilities or actions arise out of or are based upon any untrue statement
      or alleged untrue statement of a material fact contained in a Registration
      Statement or prospectus or in any amendment or supplement thereto or in
      any preliminary prospectus relating to a Shelf Registration, or arise out
      of, or are based upon, the omission or alleged omission to state therein a
      material fact required to be stated therein or necessary to make the
      statements therein not misleading, and shall reimburse, as incurred, the
      Indemnified Parties for any legal or other expenses reasonably incurred by
      them in connection with investigating or defending any such loss, claim,
      damage, liability or action in respect thereof; provided, however, that
      (i) the Company shall not be liable in any such case to the extent that
      such loss, claim, damage or liability arises out of or is based upon any
      untrue statement or alleged untrue statement or omission or alleged
      omission made in a Registration Statement or prospectus or in any
      amendment or supplement thereto or in any preliminary prospectus relating
      to a Shelf Registration in reliance upon and in conformity with written
      information pertaining to such Holder and furnished to the Company by or
      on behalf of such Holder specifically for inclusion therein and (ii) with
      respect to any untrue statement or omission or alleged untrue statement or
      omission made in any preliminary prospectus relating to a Shelf
      Registration Statement, the indemnity agreement contained in this
      subsection (a) shall not inure to the benefit of any Holder or
      Participating Broker-Dealer from whom the person asserting any such
      losses, claims, damages or liabilities purchased the Securities concerned,
      to the extent that a prospectus relating to such Securities was required
      to be delivered by such Holder or Participating Broker-Dealer under the
      Securities Act in connection with such purchase and any such loss, claim,
      damage or liability of such Holder or Participating Broker-Dealer results
      from the fact that there was not sent or given to such person, at or prior
      to the written confirmation of the sale of such Securities to such person,
      a copy of the final prospectus if the Company had previously furnished
      copies thereof to such Holder or Participating Broker-Dealer;
      provided further, however, that this indemnity agreement will be in
      addition to any liability which the Company may otherwise have to such
      Indemnified Party. The Company shall also indemnify underwriters, their
      officers and directors and each person who controls such underwriters
      within the meaning of the Securities Act or the Exchange Act to the same
      extent as provided above with respect to the indemnification of the
      Holders of the Securities if requested by such Holders.


                                       17
<PAGE>
            (b) Each Holder of the Securities, severally and not jointly, will
      indemnify and hold harmless the Company and each person, if any, who
      controls the Company within the meaning of the Securities Act or the
      Exchange Act from and against any losses, claims, damages or liabilities
      or any actions in respect thereof, to which the Company or any such
      controlling person may become subject under the Securities Act, the
      Exchange Act or otherwise, insofar as such losses, claims, damages,
      liabilities or actions arise out of or are based upon any untrue statement
      or alleged untrue statement of a material fact contained in a Registration
      Statement or prospectus or in any amendment or supplement thereto or in
      any preliminary prospectus relating to a Shelf Registration, or arise out
      of or are based upon the omission or alleged omission to state therein a
      material fact necessary to make the statements therein not misleading, but
      in each case only to the extent that the untrue statement or omission or
      alleged untrue statement or omission was made in reliance upon and in
      conformity with written information pertaining to such Holder and
      furnished to the Company by or on behalf of such Holder specifically for
      inclusion therein; and, subject to the limitation set forth immediately
      preceding this clause, shall reimburse, as incurred, the Company for any
      legal or other expenses reasonably incurred by the Company or any such
      controlling person in connection with investigating or defending any loss,
      claim, damage, liability or action in respect thereof. This indemnity
      agreement will be in addition to any liability which such Holder may
      otherwise have to the Company or any of its controlling persons.

            (c) Promptly after receipt by an indemnified party under this
      Section 5 of notice of the commencement of any action or proceeding
      (including a governmental investigation), such indemnified party will, if
      a claim in respect thereof is to be made against the indemnifying party
      under this Section 5, notify the indemnifying party of the commencement
      thereof; but the omission so to notify the indemnifying party will not, in
      any event, relieve the indemnifying party from any obligations to any
      indemnified party other than the indemnification obligation provided in
      paragraph (a) or (b) above. 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 reasonably satisfactory to such indemnified party
      (who shall not, except with the consent of the indemnified party, be
      counsel to the indemnifying party), and after notice from the indemnifying
      party to such indemnified party of its election so to assume the defense


                                       18
<PAGE>
      thereof, the indemnifying party will not be liable to such indemnified
      party under this Section 5 for any legal or other expenses, other than
      reasonable costs of investigation, subsequently incurred by such
      indemnified party in connection with the defense thereof. No indemnifying
      party shall, without the prior written consent of the indemnified party,
      effect any settlement of any pending or threatened action in respect of
      which any indemnified party is or could have been a party and indemnity
      could have been sought hereunder by such indemnified party unless such
      settlement includes an unconditional release of such indemnified party
      from all liability on any claims that are the subject matter of such
      action, and 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 the indemnification provided for in this Section 5 is
      unavailable or insufficient to hold harmless an indemnified party under
      subsections (a) or (b) above, then each indemnifying party shall
      contribute to the amount paid or payable by such indemnified party as a
      result of the losses, claims, damages or liabilities (or actions in
      respect thereof) referred to in subsection (a) or (b) above (i) in such
      proportion as is appropriate to reflect the relative benefits received by
      the indemnifying party or parties on the one hand and the indemnified
      party on the other from the exchange of the Securities pursuant to the
      Registered Exchange Offer, or (ii) if the allocation provided by the
      foregoing clause (i) is not permitted by applicable law, in such
      proportion as is appropriate to reflect not only the relative benefits
      referred to in clause (i) above 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 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 Company on the one hand or such Holder or
      such other indemnified party, as the case may be, on the other, and the
      parties' relative intent, knowledge, access to information and opportunity
      to correct or prevent such statement or omission. The amount paid by an
      indemnified party as a result of the losses, claims, damages or
      liabilities referred to in the first sentence of this subsection (d) shall
      be deemed to include any legal or other expenses reasonably incurred by
      such indemnified party in connection with investigating or defending any
      action or claim which is the subject of this subsection (d).
      Notwithstanding any other


                                       19
<PAGE>
      provision of this Section 5(d), the Holders of the Securities shall not be
      required to contribute any amount in excess of the amount by which the net
      proceeds received by such Holders from the sale of the Securities pursuant
      to a Registration Statement exceeds the amount of damages which such
      Holders have 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
      paragraph (d), each person, if any, who controls such indemnified party
      within the meaning of the Securities Act or the Exchange Act shall have
      the same rights to contribution as such indemnified party and each person,
      if any, who controls the Company within the meaning of the Securities Act
      or the Exchange Act shall have the same rights to contribution as the
      Company.

            (e) The agreements contained in this Section 5 shall survive the
      sale of the Securities pursuant to a Registration Statement and shall
      remain in full force and effect, regardless of any termination or
      cancellation of this Agreement or any investigation made by or on behalf
      of any indemnified party.

      6. Liquidated Damages Under Certain Circumstances.

            (a) Liquidated damages (the "LIQUIDATED DAMAGES") with respect to
      the Securities shall be assessed as follows if any of the following events
      occur (each such event in clauses (i) through (iv) below being herein
      called a "REGISTRATION DEFAULT"):

                  (i) any Registration Statement required by this Agreement is
            not filed with the Commission on or prior to the applicable Filing
            Deadline;

                  (ii) any Registration Statement required by this Agreement is
            not declared effective by the Commission on or prior to the
            applicable Effectiveness Deadline;

                  (iii) the Registered Exchange Offer has not been consummated
            on or prior to the Consummation Deadline; or


                                       20
<PAGE>
                  (iv) any Registration Statement required by this Agreement has
            been declared effective by the Commission but (A) such Registration
            Statement thereafter ceases to be effective or (B) such Registration
            Statement or the related prospectus ceases to be usable in
            connection with resales of Transfer Restricted Securities during the
            periods specified herein because either (1) any event occurs as a
            result of which the related prospectus forming part of such
            Registration Statement would include any untrue statement of a
            material fact or omit to state any material fact necessary to make
            the statements therein in the light of the circumstances under which
            they were made not misleading, (2) it shall be necessary to amend
            such Registration Statement or supplement the related prospectus to
            comply with the Securities Act or the Exchange Act or the respective
            rules thereunder, or (3) the Company makes a good-faith
            determination in accordance with Section 3(b)(vi) hereof to suspend
            use of the Registration Statement or the prospectus.

            Each of the foregoing will constitute a Registration Default
      whatever the reason for any such event and whether it is voluntary or
      involuntary or is beyond the control of the Company or pursuant to
      operation of law or as a result of any action or inaction by the
      Commission.

            Liquidated Damages shall accrue on the Securities from and including
      the date on which any such Registration Default shall occur to but
      excluding the date on which all such Registration Defaults have been
      cured, at a rate of 0.50% per annum (the "LIQUIDATED DAMAGES RATE") for
      the first 90-day period immediately following the occurrence of such
      Registration Default. The Liquidated Damages Rate shall increase by an
      additional 0.50% per annum with respect to each subsequent 90-day period
      until all Registration Defaults have been cured, up to a maximum
      Liquidated Damages Rate of 2.0% per annum. The Company shall not be
      required to pay Liquidated Damages for more than one Registration Default
      at any given time.

            (b) A Registration Default referred to in Section 6(a)(iv) hereof
      shall be deemed not to have occurred and be continuing in relation to a
      Shelf Registration Statement or the related prospectus if (i) such
      Registration Default has occurred solely as a result of (A) the filing of
      a post-effective amendment to such Shelf Registration Statement to
      incorporate annual audited financial information with respect to the
      Company where such post-effective amendment is not yet effective and
      needs to be declared effective to


                                       21
<PAGE>
      permit Holders to use the related prospectus or (B) other material events
      with respect to the Company that would need to be described in such Shelf
      Registration Statement or the related prospectus or that resulted in a
      suspension determination by the Company in accordance with Section
      3(b)(vi) hereof, and (ii) in the case of clause (B), the Company is
      proceeding promptly and in good faith to amend or supplement such Shelf
      Registration Statement and related prospectus to describe such events or
      to otherwise cause such Shelf Registration Statement and related
      prospectus to again be usable; provided, however, that in any case, if
      such Registration Default occurs for a continuous period in excess of 30
      days, Liquidated Damages shall be payable in accordance with the above
      paragraph from the day such Registration Default occurs until such
      Registration Default is cured.


            (c) Any amounts of Liquidated Damages due pursuant to Section 6(a)
      will be payable in cash on the regular interest payment dates with respect
      to the Securities. The amount of Liquidated Damages will be determined by
      multiplying the applicable Liquidated Damages Rate by the principal amount
      of the Securities and further multiplied by a fraction, the numerator of
      which is the number of days such Liquidated Damages Rate was applicable
      during such period (determined on the basis of a 360-day year comprised of
      twelve 30-day months), and the denominator of which is 360.


            (d) "TRANSFER RESTRICTED SECURITIES" means each Security until (i)
      the date on which such Security has been exchanged by a person other than
      a broker-dealer for a freely transferable Exchange Security in the
      Registered Exchange Offer, (ii) following the exchange by a broker-dealer
      in the Registered Exchange Offer of an Initial Security for an Exchange
      Note, the date on which such Exchange Note is sold to a purchaser who
      receives from such broker-dealer on or prior to the date of such sale a
      copy of the prospectus contained in the Exchange Offer Registration
      Statement, (iii) the date on which such Security has been effectively
      registered under the Securities Act and disposed of in accordance with the
      Shelf Registration Statement or (iv) the date on which such Security is
      distributed to the public pursuant to Rule 144 under the Securities Act or
      is saleable pursuant to Rule 144(k) under the Securities Act.


      7. Rules 144 and 144A. The Company shall use its best efforts to file the
reports required to be filed by it under the Securities Act and the Exchange Act
in a timely manner and, if at any time the Company is not required to file such
reports, it will, upon the request of any Holder of Securities, make publicly
available other


                                       22
<PAGE>
information so long as necessary to permit sales of their securities pursuant to
Rules 144 and 144A. The Company shall take such further action as any Holder of
Securities may reasonably request, all to the extent required from time to time
to enable such Holder to sell Securities without registration under the
Securities Act within the limitation of the exemptions provided by Rules 144 and
144A (including the requirements of Rule 144A(d)(4)). The Company will provide a
copy of this Agreement to prospective purchasers of Initial Securities
identified to the Company by the Initial Purchaser upon request. Upon the
request of any Holder of Initial Securities, the Company shall deliver to such
Holder a written statement as to whether it has complied with such requirements.
Notwithstanding the foregoing, nothing in this Section 7 shall be deemed to
require the Company to register any of its securities pursuant to the Exchange
Act.


      8. Underwritten Registrations. If any of the Transfer Restricted
Securities covered by any Shelf Registration are to be sold in an underwritten
offering, the investment banker or investment bankers and manager or managers
that will administer the offering ("MANAGING UNDERWRITERS") will be selected by
the Holders of not less than a majority in aggregate principal amount of such
Transfer Restricted Securities to be included in such offering.


      No person may participate in any underwritten registration hereunder
unless such person (i) agrees to sell such person's Transfer Restricted
Securities on the basis reasonably provided in any underwriting arrangements
approved by the persons entitled hereunder to approve such arrangements and (ii)
completes and executes all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents reasonably required under the terms
of such underwriting arrangements.


      9. Miscellaneous.


            (a) Remedies. The Company acknowledges and agrees that any failure
      by the Company to comply with its obligations under Section 1 and 2 hereof
      may result in material irreparable injury to the Initial Purchaser or the
      Holders for which there is no adequate remedy at law, that it will not be
      possible to measure damages for such injuries precisely and that, in the
      event of any such failure, the Initial Purchaser or any Holder may obtain
      such relief as may be required to specifically enforce the Company's
      obligations under Sections 1 and 2 hereof. The Company further agrees to
      waive the defense in any action for specific performance that a remedy at
      law would be adequate.


                                       23
<PAGE>
            (b) No Inconsistent Agreements. The Company will not on or after
      the date of this Agreement enter into any agreement with respect to its
      securities that is inconsistent with the rights granted to the Holders in
      this Agreement or otherwise conflicts with the provisions hereof. The
      rights granted to the Holders hereunder do not in any way conflict with
      and are not inconsistent with the rights granted to the holders of the
      Company's securities under any agreement in effect on the date hereof.


            (c) Amendments and Waivers. The provisions of this Agreement may not
      be amended, modified or supplemented, and waivers or consents to
      departures from the provisions hereof may not be given, except by the
      Company and the written consent of the Holders of not less than a majority
      in aggregate principal amount of the Securities affected by such
      amendment, modification, supplement, waivers or consents.


            (d) Notices. All notices and other communications provided for or
      permitted hereunder shall be made in writing by hand delivery, first-class
      mail, facsimile transmission, or air courier which guarantees overnight
      delivery:


                  (1) if to a Holder of the Securities, at the most current
            address given by such Holder to the Company.


                  (2) if to the Initial Purchaser:


                             Credit Suisse First Boston Corporation
                             Eleven Madison Avenue
                             New York, NY 10010-3629
                             Fax No.:  (212) 325-8278
                             Attention:  Transactions Advisory Group


            with a copy to:


                             Skadden, Arps, Slate, Meagher & Flom LLP
                             300 S. Grand Avenue
                             Los Angeles, California  90071
                             Fax No.:  (213) 687-5600
                             Attention:  Gregg A. Noel, Esq.


                                       24
<PAGE>
                  (3) if to the Issuer or the Guarantors, at the Issuer's
            address as follows:


                             Penton Media, Inc.
                             1300 East 9th Street
                             Cleveland, Ohio  44114
                             Fax No.:  (216) 696-0836
                             Attention:  Joseph G. NeCastro


            with a copy to:


                             Jones, Day, Reavis & Pogue
                             901 Lakeside Avenue
                             Cleveland, OH 44114
                             Fax No.:  (216) 579-0212
                             Attention:  Christopher M. Kelly, Esq.


            All such notices and communications shall be deemed to have been
      duly given: at the time delivered by hand, if personally delivered; three
      business days after being deposited in the mail, postage prepaid, if
      mailed; when receipt is acknowledged by recipient's facsimile machine
      operator, if sent by facsimile transmission; and on the next business day
      after timely delivery to a recognized overnight courier, if sent by such
      courier guaranteeing next day delivery.


            (e) Third Party Beneficiaries. The Holders shall be third party
      beneficiaries to the agreements made hereunder between the Company, on the
      one hand, and the Initial Purchaser, on the other hand, and shall have the
      right to enforce such agreements directly to the extent they may deem such
      enforcement necessary or advisable to protect their rights or the rights
      of Holders hereunder.


            (f) Successors and Assigns. This Agreement shall be binding upon the
      parties hereto and their respective successors and assigns, including,
      without limitation and without the need for an express assignment,
      subsequent Holders; provided, that nothing herein shall be deemed to
      permit any assignment, transfer or other disposition of Transfer
      Restricted Securities in violation of the terms hereof or of the Purchase
      Agreement or the Indenture.




                                       25
<PAGE>
                  (g) 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 an original and
         all of which taken together shall constitute one and the same
         agreement.


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


                  (i) Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY, AND
         CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK,
         INCLUDING, WITHOUT LIMITATION, SECTIONS 5-1401 AND 5-1402 OF THE NEW
         YORK GENERAL OBLIGATIONS LAW AND NEW YORK CIVIL PRACTICE LAWS AND RULES
         327(b).


                  (j) Severability. If any one or more of the provisions
         contained in this Agreement, or the application thereof in any
         circumstance, is held invalid, illegal or unenforceable, the validity,
         legality and enforceability of any such provision in every other
         respect and of the remaining provisions contained herein shall not be
         affected or impaired thereby.


                  (k) Securities Held by the Company. Whenever the consent or
         approval of Holders of a specified percentage of principal amount of
         Securities is required hereunder, Securities held by the Company or its
         affiliates (other than subsequent Holders of Securities if such
         subsequent Holders are deemed to be affiliates solely by reason of
         their holdings of such Securities) shall not be counted in determining
         whether such consent or approval was given by the Holders of such
         required percentage.


                  (l) Submission to Jurisdiction; Waiver of Immunities. By the
         execution and delivery of this Agreement, the Company submits to the
         nonexclusive jurisdiction of any federal or state court in the State of
         New York in any suit or proceeding arising out of or relating to this
         Agreement or brought, in connection with the transactions contemplated
         by this Agreement, under federal or state securities laws. To the
         extent that the Company may acquire any immunity from jurisdiction of
         any court or from any legal process (whether through service of notice,
         attachment prior to judgment, attachment in aid of execution, execution
         or otherwise) with respect to itself or its property, it hereby
         irrevocably waives such immunity in respect of this Agreement, to the
         fullest extent permitted by law.


                                       26
<PAGE>
                                                 [REGISTRATION RIGHTS AGREEMENT]


      If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Issuer a counterpart hereof, whereupon
this instrument, along with all counterparts, will become a binding agreement
among the Initial Purchaser, the Issuer and the Guarantors in accordance with
its terms.


                                     Very truly yours,


                                     ISSUER:


                                     PENTON MEDIA, INC.



                                     By:    /s/ Thomas L. Kemp
                                            ------------------------------------
                                            Name: Thomas L. Kemp
                                            Title: Chairman of the Board and
                                                   Chief Executive Officer



                                     GUARANTORS:


                                     STARDUST.COM


                                     By:    /s/ Joseph G. NeCastro
                                            ------------------------------------
                                            Name: Joseph G. NeCastro
                                            Title: Chief Financial Officer


                                     PTS DELAWARE, INC.


                                     By:    /s/ Joseph G. NeCastro
                                            ------------------------------------
                                            Name: Joseph G. NeCastro
                                            Title: Chief Financial Officer and
                                                   Treasurer
<PAGE>
                                  [REGISTRATION RIGHTS AGREEMENT]

                      INTERNET WORLD MEDIA, INC.


                      By:    /s/ Joseph G. NeCastro
                             ------------------------------------
                             Name: Joseph G. NeCastro
                             Title: Chief Financial Officer,
                                    Treasurer and Assistant Secretary


                      STREAMING MEDIA, INC.


                      By:    /s/ Joseph G. NeCastro
                             ------------------------------------
                             Name: Joseph G. NeCastro
                             Title: Chief Financial Officer and
                                    Treasurer


                      TECH CONFERENCES, INC.


                      By:    /s/ Joseph G. NeCastro
                             ------------------------------------
                             Name: Joseph G. NeCastro
                             Title: Vice President, Chief Financial Officer,
                                    and Treasurer


                      HEALTHWELL.COM, INC.


                      By:    /s/ Joseph G. NeCastro
                             ------------------------------------
                             Name: Joseph G. NeCastro
                             Title: Vice President, Chief Financial Officer,
                                    and Treasurer


                      DONOHUE MEEHAN PUBLISHING
                      COMPANY


                      By:    /s/ Joseph G. NeCastro
                             ------------------------------------
                             Name: Joseph G. NeCastro
                             Title: Treasurer
<PAGE>
                                                 [REGISTRATION RIGHTS AGREEMENT]


                                     DUKE INVESTMENTS, INC.


                                     By:

                                            /s/ Joseph G. NeCastro
                                            ------------------------------------
                                            Name: Joseph G. NeCastro
                                            Title: Chief Financial Officer and
                                                   Treasurer


                                     DUKE COMMUNICATIONS
                                     INTERNATIONAL, INC.


                                     By:
                                            /s/ Joseph G. NeCastro
                                            ------------------------------------
                                            Name: Joseph G. NeCastro
                                            Title: Chief Financial Officer and
                                                   Treasurer


                                     ONE, INC.


                                     By:
                                            /s/ Joseph G. NeCastro
                                            ------------------------------------
                                            Name: Joseph G. NeCastro
                                            Title: Treasurer


                                     BOARDWATCH, INCORPORATED


                                     By:
                                            /s/ Joseph G. NeCastro
                                            ------------------------------------
                                            Name: Joseph G. NeCastro
                                            Title: Treasurer


                                     PENTON INTERNET, INC.


                                     By:
                                            /s/ Joseph G. NeCastro
                                            ------------------------------------
                                            Name: Joseph G. NeCastro
                                            Title: Assistant Secretary

<PAGE>
                                                 [REGISTRATION RIGHTS AGREEMENT]


The foregoing Registration Rights Agreement is hereby confirmed and accepted as
of the date first above written.


CREDIT SUISSE FIRST BOSTON CORPORATION



By:  /s/ Kent Savagian
     ------------------------------------
     Name: Kent Savagian
     Title: Director


<PAGE>
                                                                         ANNEX A



      Each broker-dealer that receives Exchange Securities for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Securities. The Letter
of Transmittal states that by so acknowledging and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act. This Prospectus, as it may be amended or
supplemented from time to time, may be used by a broker-dealer in connection
with resales of Exchange Securities received in exchange for Initial Securities
where such Initial Securities were acquired by such broker-dealer as a result of
market-making activities or other trading activities. The Company has agreed
that, for a period of 180 days after the Expiration Date (as defined herein), it
will make this Prospectus available to any broker-dealer for use in connection
with any such resale. See "Plan of Distribution."


                                      A-1
<PAGE>
                                                                         ANNEX B

              Each broker-dealer that receives Exchange Securities for its own
account in exchange for Initial Securities, where such Initial Securities were
acquired by such broker-dealer as a result of market-making activities or other
trading activities, must acknowledge that it will deliver a prospectus in
connection with any resale of such Exchange Securities. See "Plan of
Distribution."

                                      B-1
<PAGE>
                                                                         ANNEX C
                              PLAN OF DISTRIBUTION

      Each broker-dealer that receives Exchange Securities for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Securities. This
Prospectus, as it may be amended or supplemented from time to time, may be used
by a broker-dealer in connection with resales of Exchange Securities received in
exchange for Initial Securities where such Initial Securities were acquired as a
result of market-making activities or other trading activities. The Company has
agreed that, for a period of 180 days after the Expiration Date, it will make
this prospectus, as amended or supplemented, available to any broker-dealer for
use in connection with any such resale. In addition, until        , 20  , all
dealers effecting transactions in the Exchange Securities may be required to
deliver a prospectus.(1)

      The Company will not receive any proceeds from any sale of Exchange
Securities by broker-dealers. Exchange Securities received by broker-dealers for
their own account pursuant to the Exchange Offer may be sold from time to time
in one or more transactions in the over-the-counter market, in negotiated
transactions, through the writing of options on the Exchange Securities or a
combination of such methods of resale, at market prices prevailing at the time
of resale, at prices related to such prevailing market prices or negotiated
prices. Any such resale may be made directly to purchasers or to or through
brokers or dealers who may receive compensation in the form of commissions or
concessions from any such broker-dealer or the purchasers of any such Exchange
Securities. Any broker-dealer that resells Exchange Securities that were
received by it for its own account pursuant to the Exchange Offer and any broker
or dealer that participates in a distribution of such Exchange Securities may be
deemed to be an "underwriter" within the meaning of the Securities Act and any
profit on any such resale of Exchange Securities and any commission or
concessions received by any such persons may be deemed to be underwriting
compensation under the Securities Act. The Letter of Transmittal states that, by
acknowledging that it will deliver and by delivering a prospectus, a broker-
dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.


1     In addition, the legend required by Item 502(b) of Regulation S-K will
      appear on the back cover page of the Exchange Offer prospectus.

                                      C-1
<PAGE>
      For a period of 180 days after the Expiration Date the Company will
promptly send additional copies of this Prospectus and any amendment or
supplement to this Prospectus to any broker-dealer that requests such documents
in the Letter of Transmittal. The Company has agreed to pay all expenses
incident to the Exchange Offer (including the expenses of one counsel for the
Holders of the Securities) other than commissions or concessions of any brokers
or dealers and will indemnify the Holders of the Securities (including any
broker-dealers) against certain liabilities, including liabilities under the
Securities Act.


                                      C-2
<PAGE>
                                                                         ANNEX D

[ ] CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL
COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS THERETO.


Name:  ------------------------------------

Address:------------------------------------


If the undersigned is not a broker-dealer, the undersigned represents that it is
not engaged in, and does not intend to engage in, a distribution of Exchange
Securities. If the undersigned is a broker-dealer that will receive Exchange
Securities for its own account in exchange for Initial Securities that were
acquired as a result of market-making activities or other trading activities, it
acknowledges that it will deliver a prospectus in connection with any resale of
such Exchange Securities; however, by so acknowledging and by delivering a
prospectus, the undersigned will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.


                                      D-1