Exhibit 1.1

                                                                  EXECUTION COPY

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                          REGISTRATION RIGHTS AGREEMENT

                          ADVANSTAR COMMUNICATIONS INC.

                                    as Issuer

                    APPLIED BUSINESS TELECOMMUNICATIONS, INC.
                     MEN'S APPAREL GUILD IN CALIFORNIA, INC.

                                  as Guarantors




                                  $160,000,000
                     12% SENIOR SUBORDINATED NOTES DUE 2011

                          Dated as of February 21, 2001

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


                     CREDIT SUISSE FIRST BOSTON CORPORATION,
             AS THE REPRESENTATIVE OF THE SEVERAL INITIAL PURCHASERS




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      This Registration Rights Agreement (this "AGREEMENT") is made and entered
into as of February 21, 2001, by and among Advanstar Communications Inc., a New
York corporation (the "COMPANY"), Applied Business teleCommunications, Inc., a
California corporation, and Men's Apparel Guild in California, Inc., a
California corporation (together, the "GUARANTORS"), and Credit Suisse First
Boston Corporation, as the representative of the several initial purchasers
(collectively, the "INITIAL PURCHASERS"), who have agreed to purchase the
Company's 12% Series A Senior Subordinated Notes due 2011 (the "SERIES A NOTES")
pursuant to the Purchase Agreement (as defined below).

      This Agreement is made pursuant to the Purchase Agreement, dated February
13, 2001 (the "PURCHASE AGREEMENT"), by and among the Company, the Guarantors
and the Initial Purchasers. In order to induce the Initial Purchasers to
purchase the Series A Notes, the Company has agreed to provide the registration
rights set forth in this Agreement. The execution and delivery of this Agreement
is a condition to the obligations of the Initial Purchasers set forth in Section
3 of the Purchase Agreement. Capitalized terms used herein and not otherwise
defined shall have the meaning assigned to them in the Indenture, dated February
21, 2001, among the Company, the Guarantors and Wells Fargo Bank Minnesota,
N.A., as Trustee (the "TRUSTEE"), relating to the Series A Notes and the Series
B Notes (the "INDENTURE").

      The parties hereby agree as follows:

SECTION 1.  DEFINITIONS

      As used in this Agreement, the following capitalized terms shall have the
following meanings:

      ACT:  The Securities Act of 1933, as amended.

      AFFILIATE:  As defined in Rule 144.

      AFFILIATED MARKET MAKER: A Broker-Dealer or one of its Affiliates who
is deemed to be an Affiliate of the Company.

      BROKER-DEALER: Any broker or dealer registered under the Exchange Act.

      CERTIFICATED SECURITIES: Definitive Notes, as defined in the Indenture.

      CLOSING DATE:  The date hereof.

      COMMISSION:  The Securities and Exchange Commission.

      CONSUMMATE: An Exchange Offer shall be deemed "Consummated" for purposes
of this Agreement upon the occurrence of (a) the filing and effectiveness under
the Act of the Exchange Offer Registration Statement relating to the Series B
Notes to be issued in the Exchange Offer, (b) the keeping of the Exchange Offer
open for a period not less than the period required pursuant to Section 3(b)
hereof and (c) the delivery by the Company to the Registrar under the Indenture
of Series B Notes in the same aggregate principal amount as the aggregate
principal amount of Series A Notes validly tendered and not withdrawn by Holders
thereof pursuant to the Exchange Offer.

      CONSUMMATION DATE: The date on which the Exchange Offer is Consummated.




      CONSUMMATION DEADLINE: As defined in Section 3(b) hereof.

      EFFECTIVENESS DEADLINE: As defined in Sections 3(a) and 4(a) hereof.

      EXCHANGE ACT: The Securities Exchange Act of 1934, as amended.

      EXCHANGE OFFER: The exchange and issuance by the Company of a principal
amount of Series B Notes (which shall be registered pursuant to the Exchange
Offer Registration Statement) equal to the aggregate principal amount of Series
A Notes that are validly tendered and not withdrawn in connection with such
exchange and issuance.

      EXCHANGE OFFER REGISTRATION STATEMENT: The Registration Statement relating
to the Exchange Offer, including the related Prospectus.

      FILING DEADLINE: As defined in Sections 3(a) and 4(a) hereof.

      HOLDERS: As defined in Section 2 hereof.

      PROSPECTUS: The prospectus included in a Registration Statement at the
time such Registration Statement is declared effective, as amended or
supplemented by any prospectus supplement and by all other amendments thereto,
including post-effective amendments, and all material incorporated by reference
into such prospectus.

      RECOMMENCEMENT DATE: As defined in Section 6(d) hereof.

      REGISTRATION DEFAULT:  As defined in Section 5 hereof.

      REGISTRATION STATEMENT: Any registration statement of the Company and the
Guarantors relating to (a) an offering of Series B Notes pursuant to an Exchange
Offer or (b) the registration for resale of Transfer Restricted Securities
pursuant to the Shelf Registration Statement, in each case, (i) that is filed
pursuant to the provisions of this Agreement and (ii) including the Prospectus
included therein and all exhibits thereto.

      REGULATION S: Regulation S promulgated under the Act.

      RULE 144: Rule 144 promulgated under the Act.

      SERIES B NOTES: The Company's 12% Senior Subordinated Notes due 2011 to be
issued pursuant to the Indenture (i) in the Exchange Offer or (ii) as
contemplated by Section 6(b) hereof.

      SHELF REGISTRATION STATEMENT: As defined in Section 4 hereof.

      SUSPENSION NOTICE: As defined in Section 6(d) hereof.

      TIA: The Trust Indenture Act of 1939 (15 U.S.C. Section 77aaa-77bbbb), as
in effect on the date of the Indenture.

      TRANSFER RESTRICTED SECURITIES: Each (a) Series A Note, until the earliest
to occur of (i) the date on which such Series A Note is exchanged in the
Exchange Offer for a Series B Note, (ii) the date on which such Series A Note
has been disposed of in accordance with a Shelf Registration Statement (and



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the purchasers thereof have been issued Series B Notes), and (iii) the date on
which such Series A Note is distributed to the public pursuant to Rule 144 under
the Act and (b) Series B Note issued to a Broker-Dealer in the Exchange Offer
until the date on which such Series B Note is disposed of by such Broker-Dealer
pursuant to the "Plan of Distribution" contemplated by the Exchange Offer
Registration Statement (including the delivery of the Prospectus contained
therein).

SECTION 2.  HOLDERS

      A Person is deemed to be a holder of Transfer Restricted Securities (each,
a "HOLDER") whenever such Person is the holder of record of Transfer Restricted
Securities.

SECTION 3.  REGISTERED EXCHANGE OFFER

      (a) Unless the Exchange Offer shall not be permitted by applicable federal
law (after the procedures set forth in Section 6(a)(i) hereof have been complied
with), the Company and the Guarantors shall use their respective reasonable best
efforts to (i) cause the Exchange Offer Registration Statement to be filed with
the Commission as soon as practicable after the Closing Date, but in no event
later than 90 days after the Closing Date (such 90th day, the "FILING
DEADLINE"), (ii) cause such Exchange Offer Registration Statement to become
effective at the earliest possible time, but in no event later than 180 days
after the Closing Date (such 180th day, the "EFFECTIVENESS DEADLINE"), (iii) in
connection with the foregoing, (A) file all pre-effective amendments to such
Exchange Offer Registration Statement as may be necessary in order to cause it
to become effective, and (B) subject to the proviso in Section 6(c)(xii) hereof,
cause all necessary filings, if any, in connection with the registration and
qualification of the Series B Notes to be made under the Blue Sky laws of such
jurisdictions as are necessary to permit Consummation of the Exchange Offer, and
(iv) upon the effectiveness of such Exchange Offer Registration Statement,
commence and, within the time periods contemplated by Section 3(b) hereof,
Consummate the Exchange Offer. The Exchange Offer shall be on the appropriate
form permitting (i) registration of the Series B Notes to be offered in exchange
for the Series A Notes that are Transfer Restricted Securities and (ii) resales
of Series B Notes by Broker-Dealers that tendered into the Exchange Offer Series
A Notes that such Broker-Dealer acquired for its own account as a result of its
market-making activities or other trading activities (other than Series A Notes
acquired directly from the Company or any of its Affiliates) as contemplated by
Section 3(c) hereof.

      (b) The Company and the Guarantors shall use their respective reasonable
best efforts to cause the Exchange Offer Registration Statement to be effective
continuously, and shall keep the Exchange Offer open for a period of not less
than the minimum period required under applicable federal and state securities
laws to Consummate the Exchange Offer; PROVIDED that in no event shall such
period be less than 20 Business Days. The Company and the Guarantors shall cause
the Exchange Offer to comply with all applicable federal and state securities
laws. No securities other than the Series B Notes shall be included in the
Exchange Offer Registration Statement. The Company and the Guarantors shall use
their respective reasonable best efforts to cause the Exchange Offer to be
Consummated within 30 Business Days after the Exchange Offer Registration
Statement has become effective, but in no event later than 40 Business Days
thereafter (such 40th day, the "CONSUMMATION DEADLINE").

      (c) The Company shall include a "Plan of Distribution" section in the
Prospectus contained in the Exchange Offer Registration Statement and indicate
therein that any Broker-Dealer who holds Transfer Restricted Securities that
were acquired for the account of such Broker-Dealer as a result of market-making
activities or other trading activities (other than Series A Notes acquired
directly from the Company or any of its Affiliates), may exchange such Transfer
Restricted Securities pursuant to the



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Exchange Offer. Such "Plan of Distribution" section shall also contain all other
information with respect to such sales by such Broker-Dealers that the
Commission may require in order to permit such sales pursuant thereto, but such
"Plan of Distribution" shall not name any such Broker-Dealer or disclose the
amount of Transfer Restricted Securities held by any such Broker-Dealer, except
to the extent required by the Commission.

      Because such Broker-Dealer may be deemed to be an "underwriter" within the
meaning of the Act and must, therefore, deliver a prospectus meeting the
requirements of the Act in connection with its initial sale of any Series B
Notes received by such Broker-Dealer in the Exchange Offer, the Company and the
Guarantors shall permit the use of the Prospectus contained in the Exchange
Offer Registration Statement by such Broker-Dealer to satisfy such prospectus
delivery requirement for a period of 90 days following the Consummation Date. To
the extent necessary to ensure that the Prospectus contained in the Exchange
Offer Registration Statement is available for sales of Series B Notes by
Broker-Dealers, the Company and the Guarantors agree to use their respective
reasonable best efforts to keep the Exchange Offer Registration Statement
continuously effective, supplemented, amended and current as required by and
subject to the provisions of Sections 6(a) and (c) hereof and in conformity with
the requirements of this Agreement, the Act and the policies, rules and
regulations of the Commission as announced from time to time, for a period of 90
days from the Consummation Date or such shorter period as will terminate when no
Transfer Restricted Securities are outstanding. The Company and the Guarantors
shall provide sufficient copies of the latest version of such Prospectus to such
Broker-Dealers, promptly upon request, at any time during such period.

SECTION 4.  SHELF REGISTRATION

      (a)   SHELF REGISTRATION. If (i) the Exchange Offer is not permitted by
applicable law (after the Company and the Guarantors have complied with the
procedures set forth in Section 6(a)(i) hereof) or (ii) if any Holder of
Transfer Restricted Securities shall notify the Company in writing within 20
Business Days following the Consummation Deadline that (A) based on an opinion
of counsel, such Holder was prohibited by law or Commission policy from
participating in the Exchange Offer or (B) such Holder is a Broker-Dealer and
holds Series A Notes acquired directly from the Company or any of its
Affiliates, then the Company and the Guarantors shall:

            (x) cause to be filed, on or prior to 90 days after the earlier of
      (i) the date on which the Company determines that the Exchange Offer
      Registration Statement cannot be filed as a result of Section 4(a)(i)
      hereof and (ii) the date on which the Company receives the notice
      specified in Section 4(a)(ii) hereof (90 days after such earlier date, the
      "FILING DEADLINE"), a shelf registration statement (the "SHELF
      REGISTRATION STATEMENT") pursuant to Rule 415 under the Act (which may be
      an amendment to the Exchange Offer Registration Statement) relating to (1)
      all Transfer Restricted Securities in the case of clause (a)(i) above or
      (2) the Transfer Restricted Securities specified in any notice in the case
      of clause (a)(ii) above; and

            (y) shall use their respective reasonable best efforts to cause such
      Shelf Registration Statement to become effective on or prior to 90 days
      after the Filing Deadline for the Shelf Registration Statement (such 90th
      day, the "EFFECTIVENESS DEADLINE").

      If, after the Company has filed an Exchange Offer Registration Statement
that satisfies the requirements of Section 3(a) hereof, the Company is required
to file and make effective a Shelf Registration Statement solely because the
Exchange Offer is not permitted under applicable federal law (I.E., Section
4(a)(i) hereof), then the filing of the Exchange Offer Registration Statement
shall be



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deemed to satisfy the requirements of clause (x) above; PROVIDED that, in such
event, the Company shall remain obligated to meet the Effectiveness Deadline set
forth in clause (y).

      To the extent necessary to ensure that the Shelf Registration Statement is
available for sales of Transfer Restricted Securities by the Holders thereof
entitled to the benefit of this Section 4(a) and the other securities required
to be registered therein pursuant to Section 6(b)(ii) hereof, the Company and
the Guarantors shall use their respective reasonable best efforts to keep any
Shelf Registration Statement required by this Section 4(a) continuously
effective, supplemented, amended and current as required by and subject to the
provisions of Sections 6(b) and (c) hereof and in conformity with the
requirements of this Agreement, the Act and the policies, rules and regulations
of the Commission as announced from time to time, until the later of (a) the
date on which no Initial Purchaser is deemed to be an Affiliate of the Company,
and (b) the earlier of the second anniversary of the Closing Date (as such date
may be extended pursuant to Section 6(d) hereof) and such earlier date when no
Transfer Restricted Securities covered by such Shelf Registration Statement
remain outstanding.

      (b) Provision by Holders of Certain Information in Connection with the
Shelf Registration Statement. No Holder of Transfer Restricted Securities may
include any of its Transfer Restricted Securities in any Shelf Registration
Statement pursuant to this Agreement unless and until such Holder furnishes to
the Company in writing, within 20 days after receipt of a request therefor, the
information specified in Item 507 or 508 of Regulation S-K, as applicable, of
the Act for use in connection with any Shelf Registration Statement or
Prospectus or preliminary Prospectus included therein. No Holder of Transfer
Restricted Securities shall be entitled to liquidated damages pursuant to
Section 5 hereof unless and until such Holder shall have provided all such
information. Each selling Holder agrees to promptly furnish additional
information required to be disclosed in order to make the information previously
furnished to the Company by such Holder not materially misleading.

      (c) Holders of Transfer Restricted Securities that do not give the written
notice within the 20 Business Day period set forth in Section 4(a)(ii) hereof,
if required to be given, will no longer have any registration rights pursuant to
this Section 4 and will not be entitled to any liquidated damages pursuant to
Section 5 hereof in respect of the Company's obligations with respect to the
Shelf Registration Statement. Notwithstanding the foregoing, no Affiliate of the
Company shall be required to give such written notice or deliver an opinion in
order to maintain its registration rights pursuant to this Section 4.

SECTION 5.  LIQUIDATED DAMAGES

      If (i) any Registration Statement required by this Agreement is not filed
with the Commission on or prior to the applicable Filing Deadline, (ii) any such
Registration Statement has not been declared effective by the Commission on or
prior to the applicable Effectiveness Deadline, (iii) the Exchange Offer has not
been Consummated on or prior to the Consummation Deadline or (iv) any
Registration Statement required by this Agreement is filed and declared
effective but shall thereafter cease to be effective or fail to be usable for
its intended purpose without being succeeded within ten Business Days by a
post-effective amendment to such Registration Statement that cures such failure
and that is itself declared effective within ten Business Days of filing such
post-effective amendment to such Registration Statement (each such event
referred to in clauses (i) through (iv), a "REGISTRATION DEFAULT"), then the
Company and the Guarantors hereby jointly and severally agree to pay to each
Holder of Transfer Restricted Securities affected thereby liquidated damages in
an amount equal to $.05 per week per $1,000 in principal amount of Transfer
Restricted Securities held by such Holder for each week or portion thereof that
the Registration Default continues for the first 90-day period immediately
following the occurrence of such Registration Default. The amount of the
liquidated damages shall increase by an



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additional $.05 per week per $1,000 in principal amount of Transfer Restricted
Securities with respect to each subsequent 90-day period until all Registration
Defaults have been cured, up to a maximum amount of liquidated damages of $.25
per week per $1,000 in principal amount of Transfer Restricted Securities;
PROVIDED that the Company and the Guarantors shall in no event be required to
pay liquidated damages for more than one Registration Default at any given time.
Notwithstanding anything to the contrary set forth herein, (1) upon filing of
the Exchange Offer Registration Statement (and/or, if applicable, the Shelf
Registration Statement), in the case of (i) above, (2) upon the effectiveness of
the Exchange Offer Registration Statement (and/or, if applicable, the Shelf
Registration Statement), in the case of (ii) above, (3) upon Consummation of the
Exchange Offer, in the case of (iii) above, (4) upon the filing of a
post-effective amendment to the Registration Statement or an additional
Registration Statement that causes the Exchange Offer Registration Statement
(and/or, if applicable, the Shelf Registration Statement) to again be declared
effective or made usable in the case of (iv) above, or (5) if sooner, upon the
first date on which no Transfer Restricted Securities remain outstanding, in the
case of clauses (i) through (iv) above, the liquidated damages payable with
respect to the Transfer Restricted Securities as a result of such clause (i),
(ii), (iii) or (iv), as applicable, shall cease.

      All accrued liquidated damages shall be paid to the Holders entitled
thereto, in the manner provided for the payment of interest in the Indenture, on
each Interest Payment Date, as more fully set forth in the Indenture and the
Notes. Notwithstanding the fact that any securities for which liquidated damages
are due cease to be Transfer Restricted Securities, all obligations of the
Company and the Guarantors to pay liquidated damages with respect to securities
that accrued prior to the time such securities ceased to be Transfer Restricted
Securities shall survive until such time as such obligations with respect to
such securities shall have been satisfied in full.

SECTION 6.  REGISTRATION PROCEDURES

      (a) EXCHANGE OFFER REGISTRATION STATEMENT. In connection with the Exchange
Offer, the Company and the Guarantors shall (x) comply with all applicable
provisions of Section 6(c) hereof, (y) use their respective reasonable best
efforts to effect such exchange and to permit the resale of Series B Notes by
Broker-Dealers that tendered in the Exchange Offer Series A Notes that such
Broker-Dealer acquired for its own account as a result of its market-making
activities or other trading activities (other than Series A Notes acquired
directly from the Company or any of its Affiliates) being sold in accordance
with the intended method or methods of distribution thereof, and (z) comply with
all of the following provisions:

            (i) If, following the date hereof there has been announced a change
      in Commission policy with respect to exchange offers, such as the Exchange
      Offer, that, in the opinion of counsel to the Company, raises a
      substantial question as to whether the Exchange Offer is permitted by
      applicable federal law, the Company and the Guarantors hereby agree to
      seek a no-action letter or other favorable decision from the Commission
      allowing the Company and the Guarantors to Consummate an Exchange Offer
      for such Transfer Restricted Securities. The Company and the Guarantors
      hereby agree to use their respective reasonable best efforts in pursuing
      the issuance of such a decision to the Commission staff level.

            (ii) As a condition to its participation in the Exchange Offer, each
      Holder of Transfer Restricted Securities (including, without limitation,
      any Holder who is a Broker-Dealer) shall furnish, upon the request of the
      Company, prior to the Consummation of the Exchange Offer, a written
      representation to the Company and the Guarantors (which may be contained
      in the letter of transmittal contemplated by the Exchange Offer
      Registration Statement) to the effect that, at the



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      time of Consummation of the Exchange Offer, (A) any Series B Notes
      received by such Holder will be acquired in the ordinary course of its
      business, (B) such Holder will have no arrangement or understanding with
      any person to participate in the distribution of the Series A Notes or the
      Series B Notes within the meaning of the Act, (C) if the Holder is not a
      Broker-Dealer or is a Broker-Dealer but will not receive Series B Notes
      for its own account in exchange for Series A Notes, neither the Holder nor
      any such other Person is engaged in or intends to participate in a
      distribution of the Series B Notes, and (D) that such Holder is not an
      Affiliate of the Company. If the Holder is a Broker-Dealer that will
      receive Series B Notes for its own account in exchange for Series A Notes,
      it will represent that the Notes to be exchanged for the Series B Notes
      were acquired by it as a result of its market-making activities or other
      trading activities, and will acknowledge that it will deliver a prospectus
      meeting the requirements of the Act in connection with any resale of such
      Series B Notes. It is understood that, by acknowledging that it will
      deliver, and by delivering, a prospectus meeting the requirements of the
      Act in connection with any resale of such Series B Notes, the Holder is
      not admitting that it is an "underwriter" within the meaning of the Act.

            (iii) Prior to effectiveness of the Exchange Offer Registration
      Statement, the Company and the Guarantors shall provide a supplemental
      letter to the Commission (A) stating that the Company and the Guarantors
      are registering the Exchange Offer in reliance on the position of the
      Commission enunciated in EXXON CAPITAL HOLDINGS CORPORATION (available May
      13, 1988) and MORGAN STANLEY AND CO., INC. (available June 5, 1991), as
      interpreted in the Commission's letter to SHEARMAN & STERLING dated July
      2, 1993, and, if applicable, any no-action letter obtained pursuant to
      clause (i) above, (B) including a representation that neither the Company
      nor any Guarantor has entered into any arrangement or understanding with
      any Person to distribute the Series B Notes to be received in the Exchange
      Offer and that, to the best of the Company's and each Guarantors'
      information and belief, each Holder participating in the Exchange Offer is
      acquiring the Series B Notes in its ordinary course of business and has no
      arrangement or understanding with any Person to participate in the
      distribution of the Series B Notes received in the Exchange Offer and (C)
      any other undertaking or representation required by the Commission as set
      forth in any no-action letter obtained pursuant to clause (i) above, if
      applicable.

      (b) SHELF REGISTRATION STATEMENT. In connection with the Shelf
Registration Statement, the Company and the Guarantors shall:

            (i) comply with all the provisions of Section 6(c) hereof and use
      their respective reasonable best efforts to effect such registration to
      permit the sale of the Transfer Restricted Securities being sold in
      accordance with the intended method or methods of distribution thereof (as
      indicated in the information furnished to the Company pursuant to Section
      4(b) hereof), and pursuant thereto the Company and the Guarantors will
      prepare and file with the Commission a Registration Statement relating to
      the registration on any appropriate form under the Act, which form shall
      be available for the sale of the Transfer Restricted Securities in
      accordance with the intended method or methods of distribution thereof
      within the time periods and otherwise in accordance with the provisions
      hereof, and

            (ii) issue, upon the request of any Holder or purchaser of Series A
      Notes covered by any Shelf Registration Statement contemplated by this
      Agreement, Series B Notes having an aggregate principal amount equal to
      the aggregate principal amount of Series A Notes sold pursuant to the
      Shelf Registration Statement and surrendered to the Company for
      cancellation; the Company shall register Series B Notes on the Shelf
      Registration Statement for this purpose and issue the



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      Series B Notes to the purchaser(s) of securities subject to the Shelf
      Registration Statement in the names as such purchaser(s) shall designate.

      (c) GENERAL PROVISIONS. In connection with any Registration Statement and
any related Prospectus required by this Agreement, the Company and the
Guarantors shall, during the periods specified in Sections 3 and 4 hereof, as
applicable:

            (i) use their respective reasonable best efforts to keep such
      Registration Statement continuously effective and provide all requisite
      financial statements for the period specified in Section 3 or 4 of this
      Agreement, as applicable. Upon the occurrence of any event that would
      cause any such Registration Statement or the Prospectus contained therein
      (A) to contain an untrue statement of 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 or (B) not to
      be effective and usable for resale of Transfer Restricted Securities
      during the period required by this Agreement, the Company and the
      Guarantors shall file promptly an appropriate amendment to such
      Registration Statement or a supplement to the Prospectus, as applicable,
      curing such defect, and, in the case of an amendment, use their respective
      reasonable best efforts to cause such amendment to be declared effective
      as soon as practicable.

            (ii) prepare and file with the Commission such amendments and
      post-effective amendments to the applicable Registration Statement as may
      be necessary to keep such Registration Statement effective for the
      applicable period set forth in Section 3 or 4 hereof, as the case may be;
      cause the Prospectus to be supplemented by any required Prospectus
      supplement, and as so supplemented to be filed pursuant to Rule 424 under
      the Act, and to comply fully with Rules 424, 430A and 462, as applicable,
      under the Act in a timely manner; and comply with the provisions of the
      Act with respect to the disposition of all securities covered by such
      Registration Statement during the applicable period in accordance with the
      intended method or methods of distribution by the sellers thereof set
      forth in such Registration Statement or supplement to the Prospectus;

            (iii) advise each Holder whose Transfer Restricted Securities have
      been included in a Shelf Registration Statement (in the case of the Shelf
      Registration Statement) and Affiliated Market Maker promptly and, if
      requested by such Person, confirm such advice in writing, (A) when the
      Prospectus or any Prospectus supplement or post-effective amendment has
      been filed, and, with respect to any applicable Registration Statement or
      any post-effective amendment thereto, when the same has become effective,
      (B) of any request by the Commission for amendments to the Registration
      Statement or amendments or supplements to the Prospectus or for additional
      information relating thereto, (C) of the issuance by the Commission of any
      stop order suspending the effectiveness of the Registration Statement
      under the Act or of the suspension by any state securities commission of
      the qualification of the Transfer Restricted Securities for offering or
      sale in any jurisdiction, or the initiation of any proceeding for any of
      the preceding purposes, and (D) of the existence of any fact or the
      happening of any event that makes any statement of a material fact made in
      the Registration Statement, the Prospectus, any amendment or supplement
      thereto or any document incorporated by reference therein untrue, or that
      requires the making of any additions to or changes in the Registration
      Statement in order to make the statements therein not misleading, or that
      requires the making of any additions to or changes in the Prospectus in
      order to make the statements therein, in the light of the circumstances
      under which they were made, not misleading. If at any time the Commission
      shall issue any stop order suspending the effectiveness of the
      Registration Statement, or any state securities commission or other
      regulatory authority shall issue an order suspending the qualification or
      exemption from qualification of the Transfer Restricted



                                       8


      Securities under state securities or Blue Sky laws, the Company and the
      Guarantors shall use their respective reasonable best efforts to obtain
      the withdrawal or lifting of such order at the earliest possible time;

            (iv) subject to Section 6(d), if any fact or event contemplated by
      Section 6(c)(iii)(D) hereof shall exist or have occurred, prepare a
      supplement or post-effective amendment to the Registration Statement or
      related Prospectus or any document incorporated therein by reference or
      file any other required document so that, as thereafter delivered to the
      purchasers of Transfer Restricted Securities, the Prospectus will not
      contain an 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;

            (v) furnish to each Holder whose Transfer Restricted Securities have
      been included in a Shelf Registration Statement (in the case of the Shelf
      Registration Statement) and each Affiliated Market Maker in connection
      with such sale, if any, before filing with the Commission, copies of any
      Registration Statement or any Prospectus included therein or any
      amendments or supplements to any such Registration Statement or Prospectus
      (including all documents incorporated by reference after the initial
      filing of such Registration Statement), which documents will be subject to
      the review and comment of such Persons, if any, for a period of at least
      five Business Days, and the Company will not file any such Registration
      Statement or Prospectus or any amendment or supplement to any such
      Registration Statement or Prospectus (including all such documents
      incorporated by reference) to which such Persons shall reasonably object
      within five Business Days after the receipt thereof. Such Persons shall be
      deemed to have reasonably objected to such filing if such Registration
      Statement, amendment, Prospectus or supplement, as applicable, as proposed
      to be filed, contains an untrue statement of a material fact or omits to
      state any material fact necessary to make the statements therein, in the
      light of the circumstances under which they were made, not misleading or
      fails to comply with the applicable requirements of the Act;

            (vi) promptly prior to the filing of any document that is to be
      incorporated by reference into a Registration Statement or Prospectus,
      provide copies of such document to each Holder whose Transfer Restricted
      Securities have been included in a Shelf Registration Statement (in the
      case of the Shelf Registration Statement) and each Affiliated Market Maker
      in connection with such sale or exchange, if any, make the Company's and
      the Guarantors' representatives available for discussion of such document
      and other customary due diligence matters, and include such information in
      such document prior to the filing thereof as such Persons may reasonably
      request;

            (vii) make available, at reasonable times, for inspection by each
      Holder whose Transfer Restricted Securities have been included in a Shelf
      Registration Statement (in the case of the Shelf Registration Statement)
      and each Affiliated Market Maker and any attorney or accountant retained
      by such Persons, all financial and other records, pertinent corporate
      documents of the Company and the Guarantors and cause the Company's and
      the Guarantors' officers, directors and employees to supply all
      information reasonably requested by any such Persons, attorney or
      accountant in connection with such Registration Statement or any
      post-effective amendment thereto subsequent to the filing thereof and
      prior to its effectiveness;

            (viii) if requested by any Holders whose Transfer Restricted
      Securities have been included in a Shelf Registration Statement (in the
      case of the Shelf Registration Statement) or any Affiliated Market Maker,
      promptly include in any Registration Statement or Prospectus, pursuant to
      a supplement or post-effective amendment if necessary, such information as
      such Persons may



                                       9


      reasonably request to have included therein, including, without
      limitation, information relating to the "Plan of Distribution" of the
      Transfer Restricted Securities and the use of the Registration Statement
      or Prospectus for market-making activities; and make all required filings
      of such Prospectus supplement or post-effective amendment as soon as
      practicable after the Company is notified of the matters to be included in
      such Prospectus supplement or post-effective amendment;

            (ix) furnish to each Holder whose Transfer Restricted Securities
      have been included in a Shelf Registration Statement (in the case of the
      Shelf Registration Statement) in connection with such exchange or sale and
      each Affiliated Market Maker, without charge, at least one copy of the
      Registration Statement, as first filed with the Commission, and of each
      amendment thereto, including all documents incorporated by reference
      therein and all exhibits (including exhibits incorporated therein by
      reference);

            (x) deliver to each Holder whose Transfer Restricted Securities have
      been included in a Shelf Registration Statement and each Affiliated Market
      Maker without charge, as many copies of the Prospectus (including each
      preliminary Prospectus) and any amendment or supplement thereto as such
      Persons reasonably may request; the Company and the Guarantors hereby
      consent to the use (in accordance with law and subject to Section 6(d)
      hereof) of the Prospectus and any amendment or supplement thereto by each
      selling Person in connection with the offering and the sale of the
      Transfer Restricted Securities covered by the Prospectus or any amendment
      or supplement thereto and all market-making activities of such Affiliated
      Market Maker, as the case may be;

            (xi) upon the request of any Holder whose Transfer Restricted
      Securities have been included in a Shelf Registration Statement (in the
      case of the Shelf Registration Statement) or the Initial Purchasers, enter
      into such agreements (including underwriting agreements) and make such
      representations and warranties and take all such other actions in
      connection therewith in order to expedite or facilitate the disposition of
      the Transfer Restricted Securities pursuant to any applicable Registration
      Statement contemplated by this Agreement as may be reasonably requested by
      such Person in connection with any sale or resale pursuant to any
      applicable Registration Statement. In such connection, and also in
      connection with market making activities by any Affiliated Market Maker,
      the Company and the Guarantors shall:

            (A) upon request of any such Person, furnish (or in the case of
      paragraphs (2) and (3), use their respective reasonable best efforts to
      cause to be furnished) to each Holder (in the case of the Shelf
      Registration Statement) and the Initial Purchasers, upon Consummation of
      the Exchange Offer or upon the effectiveness of the Shelf Registration
      Statement, as the case may be:

                  (1) a certificate, dated such date, signed on behalf of the
            Company and each Guarantor by (x) the President or any Vice
            President and (y) a principal financial or accounting officer of the
            Company and such Guarantor, confirming, as of the date thereof, the
            matters set forth in Sections 9(a) and 9(b) of the Purchase
            Agreement and such other similar matters as such Person may
            reasonably request;

                  (2) an opinion, dated the date of Consummation of the Exchange
            Offer or the date of effectiveness of the Shelf Registration
            Statement, as the case may be, of counsel for the Company and the
            Guarantors covering matters similar to those set forth in Sections
            9(e), (f) and (g) of the Purchase Agreement and such other matters
            as such Person may reasonably request, and in any event including a
            statement to the effect that such counsel has participated in
            conferences with



                                       10


            officers and other representatives of the Company and the Guarantors
            and representatives of the independent public accountants for the
            Company and the Guarantors and have considered the matters required
            to be stated therein and the statements contained therein, although
            such counsel has not independently verified the accuracy,
            completeness or fairness of such statements; and that such counsel
            advises that, on the basis of the foregoing (relying as to
            materiality to the extent such counsel deems appropriate upon the
            statements of officers and other representatives of the Company and
            the Guarantors and without independent check or verification), no
            facts came to such counsel's attention that caused such counsel to
            believe that the applicable Registration Statement, at the time such
            Registration Statement or any post-effective amendment thereto
            became effective and, in the case of the Exchange Offer Registration
            Statement, as of the date of Consummation of the Exchange Offer,
            contained an untrue statement of a material fact or omitted to state
            a material fact required to be stated therein or necessary to make
            the statements therein not misleading, or that the Prospectus
            contained in such Registration Statement as of its date and, in the
            case of the opinion dated the date of Consummation of the Exchange
            Offer, as of the date of Consummation, contained an untrue statement
            of a material fact or omitted to state a material fact necessary in
            order to make the statements therein, in the light of the
            circumstances under which they were made, not misleading. Without
            limiting the foregoing, such counsel may state further that such
            counsel assumes no responsibility for, and has not independently
            verified, the accuracy, completeness or fairness of the financial
            statements, notes and schedules and other financial and statistical
            data included in any Registration Statement contemplated by this
            Agreement or the related Prospectus; and

                  (3) a customary comfort letter, dated the date of Consummation
            of the Exchange Offer, or as of the date of effectiveness of the
            Shelf Registration Statement, as the case may be, from the Company's
            independent accountants, in the customary form and covering matters
            of the type customarily covered in comfort letters to underwriters
            in connection with underwritten offerings, and affirming the matters
            set forth in the comfort letters delivered pursuant to Section 9(i)
            of the Purchase Agreement; and

            (B) deliver such other documents and certificates as may be
reasonably requested by such Persons to evidence compliance with the matters
covered in clause (A) above and with any customary conditions contained in any
agreement entered into by the Company and the Guarantors pursuant to this clause
(xi);

            (xii) prior to any public offering of Transfer Restricted
Securities, cooperate with the selling Holders and their counsel in connection
with the registration and qualification of the Transfer Restricted Securities
under the securities or Blue Sky laws of such jurisdictions as the selling
Holders may request and do any and all other acts or things necessary or
advisable to enable the disposition in such jurisdictions of the Transfer
Restricted Securities covered by the applicable Registration Statement; PROVIDED
that neither the Company nor any Guarantor shall be required to register or
qualify as a foreign corporation where it is not now so qualified or to take any
action that would subject it to the service of process in suits or to taxation,
other than as to matters and transactions relating to the Registration
Statement, in any jurisdiction where it is not now so subject;



                                       11


            (xiii) in connection with any sale of Transfer Restricted Securities
      that will result in such securities no longer being Transfer Restricted
      Securities, cooperate with the Holders to facilitate the timely
      preparation and delivery of certificates representing Transfer Restricted
      Securities to be sold and not bearing any restrictive legends; and to
      register such Transfer Restricted Securities in such denominations and
      such names as the selling Holders may request at least two Business Days
      prior to such sale of Transfer Restricted Securities;

            (xiv) use their respective reasonable best efforts to cause the
      disposition of the Transfer Restricted Securities covered by the
      Registration Statement to be registered with or approved by such other
      governmental agencies or authorities as may be necessary to enable the
      seller or sellers thereof to consummate the disposition of such Transfer
      Restricted Securities, subject to the proviso contained in clause (xii)
      above;

            (xv) provide a CUSIP number for all Transfer Restricted Securities
      not later than the effective date of a Registration Statement covering
      such Transfer Restricted Securities and provide the Trustee under the
      Indenture with printed certificates for the Transfer Restricted Securities
      which are in a form eligible for deposit with The Depository Trust
      Company;

            (xvi) otherwise use their respective reasonable best efforts to
      comply with all applicable rules and regulations of the Commission, and
      make generally available to their security holders with regard to any
      applicable Registration Statement, as soon as practicable, a consolidated
      earnings statement meeting the requirements of Rule 158 under the Act
      (which need not be audited) covering a twelve-month period beginning after
      the effective date of the Registration Statement (as such term is defined
      in Rule 158(c) under the Act);

            (xvii) cause the Indenture to be qualified under the TIA not later
      than the effective date of the first Registration Statement required by
      this Agreement and, in connection therewith, cooperate with the Trustee
      and the Holders to effect such changes to the Indenture as may be required
      for such Indenture to be so qualified in accordance with the terms of the
      TIA; and execute and use its reasonable best efforts to cause the Trustee
      to execute, all documents that may be required to effect such changes and
      all other forms and documents required to be filed with the Commission to
      enable such Indenture to be so qualified in a timely manner; and

            (xviii) provide promptly to each Holder and Affiliated Market Maker,
      upon request, each document filed with the Commission pursuant to the
      requirements of Section 13 or Section 15(d) of the Exchange Act.

      (d) RESTRICTIONS ON HOLDERS. Each Holder agrees by acquisition of a
Transfer Restricted Security and each Affiliated Market Maker agrees that, upon
receipt of the notice referred to in Section 6(c)(iii)(C) or any notice from the
Company of the existence of any fact of the kind described in Section
6(c)(iii)(D) hereof (in each case, a "SUSPENSION NOTICE"), such Person will
forthwith discontinue disposition of Transfer Restricted Securities pursuant to
the applicable Registration Statement until (i) such Person has received copies
of the supplemented or amended Prospectus contemplated by Section 6(c)(iv)
hereof, or (ii) such Person is advised in writing by the Company that the use of
the Prospectus may be resumed, and has received copies of any additional or
supplemental filings that are incorporated by reference in the Prospectus (in
each case, the "RECOMMENCEMENT DATE"). Each Person receiving a Suspension Notice
hereby agrees that it will either (i) destroy any Prospectuses, other than
permanent file copies, then in such Person's possession which have been replaced
by the Company with more recently dated Prospectuses or (ii) deliver to the
Company (at the Company's expense) all copies, other than



                                       12


permanent file copies, then in such Person's possession of the Prospectus
covering such Transfer Restricted Securities that was current at the time of
receipt of the Suspension Notice. The time period regarding the effectiveness of
such Registration Statement set forth in Section 3 or 4 hereof, as applicable,
shall be extended by a number of days equal to the number of days in the period
from and including the date of delivery of the Suspension Notice to the date of
delivery of the Recommencement Date.

SECTION 7.  REGISTRATION EXPENSES

      (a) All expenses incident to the Company's and the Guarantors' performance
of or compliance with this Agreement will be borne by the Company, regardless of
whether a Registration Statement 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
Series B Notes to be issued in the Exchange Offer and printing of Prospectuses
(whether for exchanges, sales, market-making or otherwise), messenger and
delivery services and telephone; (iv) all fees and disbursements of counsel for
the Company and the Guarantors; (v) all application and filing fees in
connection with listing the Series B Notes 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 and the Guarantors (including the expenses of any special audit and
comfort letters required by or incident to such performance).

      The Company will, in any event, bear its and the Guarantors' 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 and the Guarantors.

      (b) In connection with any Registration Statement required by this
Agreement (including, without limitation, the Exchange Offer Registration
Statement and the Shelf Registration Statement), the Company and the Guarantors
will reimburse the Initial Purchaser and the Holders of Transfer Restricted
Securities who are tendering Series A Notes in the Exchange Offer and/or selling
or reselling Series A Notes or Series B Notes 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 a majority in principal amount of the Transfer Restricted Securities for
whose benefit such Registration Statement is being prepared.

SECTION 8.  INDEMNIFICATION

      (a) The Company and the Guarantors agree, jointly and severally, to
indemnify and hold harmless each Holder, its directors, officers and each
Person, if any, who controls such Holder (within the meaning of Section 15 of
the Act or Section 20 of the Exchange Act), from and against any and all losses,
claims, damages, liabilities, judgments, (including, without limitation, any
legal or other expenses incurred in connection with investigating or defending
any matter, including any action that could give rise to any such losses,
claims, damages, liabilities or judgments) caused by any untrue statement or
alleged untrue statement of a material fact contained in any Registration
Statement, preliminary Prospectus or Prospectus (or any amendment or supplement
thereto) provided by the Company to any Holder or any prospective purchaser of
Series B Notes or registered Series A Notes, or caused by any omission or
alleged omission to state therein a material fact required to be stated therein
or necessary to



                                       13


make the statements therein not misleading, except insofar as such losses,
claims, damages, liabilities or judgments are caused by an untrue statement or
omission or alleged untrue statement or omission that is based upon information
relating to any of the Holders furnished in writing to the Company by any of the
Holders.

      (b) Each Holder of Transfer Restricted Securities agrees, severally and
not jointly, to indemnify and hold harmless the Company and the Guarantors,
their respective directors and officers, and each person, if any, who controls
(within the meaning of Section 15 of the Act or Section 20 of the Exchange Act)
the Company or the Guarantors, to the same extent as the foregoing indemnity
from the Company and the Guarantors set forth in Section 8(a) hereof, but only
with reference to information relating to such Holder furnished in writing to
the Company by such Holder expressly for use in any Registration Statement. In
no event shall any Holder, its directors, officers or any Person who controls
such Holder be liable or responsible for any amount in excess of the amount by
which the total amount received by such Holder with respect to its sale of
Transfer Restricted Securities pursuant to a Registration Statement exceeds (i)
the amount paid by such Holder for such Transfer Restricted Securities and (ii)
the amount of any damages that such Holder, its directors, officers or any
Person who controls such Holder has otherwise been required to pay by reason of
such untrue or alleged untrue statement or omission or alleged omission.

      (c) In case any action shall be commenced involving any person in respect
of which indemnity may be sought pursuant to Section 8(a) or 8(b) (the
"INDEMNIFIED PARTY"), the indemnified party shall promptly notify the person
against whom such indemnity may be sought (the "INDEMNIFYING PERSON") in
writing, and the indemnifying party shall assume the defense of such action,
including the employment of counsel reasonably satisfactory to the indemnified
party and the payment of all fees and expenses of such counsel, as incurred
(except that, in the case of any action in respect of which indemnity may be
sought pursuant to both Sections 8(a) and 8(b), a Holder shall not be required
to assume the defense of such action pursuant to this Section 8(c), but may
employ separate counsel and participate in the defense thereof, but the fees and
expenses of such counsel, except as provided below, shall be at the expense of
the Holder). Any indemnified party shall have the right to employ separate
counsel in any such action and participate in the defense thereof, but the fees
and expenses of such counsel shall be at the expense of the indemnified party,
unless (i) the employment of such counsel shall have been specifically
authorized in writing by the indemnifying party, (ii) the indemnifying party
shall have failed to assume the defense of such action or employ counsel
reasonably satisfactory to the indemnified party or (iii) the named parties to
any such action (including any impleaded parties) include both the indemnified
party and the indemnifying party, and the indemnified party shall have been
advised by such counsel that there may be one or more legal defenses available
to it which are different from or additional to those available to the
indemnifying party (in which case the indemnifying party shall not have the
right to assume the defense of such action on behalf of the indemnified party).
In any such case, the indemnifying party shall not, in connection with any one
action or separate but substantially similar or related actions in the same
jurisdiction arising out of the same general allegations or circumstances, be
liable for the fees and expenses of more than one separate firm of attorneys (in
addition to any local counsel) for all indemnified parties and all such fees and
expenses shall be reimbursed as they are incurred. Such firm shall be designated
in writing by a majority of the Holders, in the case of the parties indemnified
pursuant to Section 8(a), and by the Company and the Guarantors, in the case of
parties indemnified pursuant to Section 8(b). The indemnifying party shall
indemnify and hold harmless the indemnified party from and against any and all
losses, claims, damages, liabilities and judgments by reason of any settlement
of any action (i) effected with its written consent or (ii) effected without its
written consent if the settlement is entered into more than twenty Business Days
after the indemnifying party shall have received a request from the indemnified
party for reimbursement for the fees and



                                       14


expenses of counsel (in any case where such fees and expenses are at the expense
of the indemnifying party) and, prior to the date of such settlement, the
indemnifying party shall have failed to comply with such reimbursement request.
No indemnifying party shall, without the prior written consent of the
indemnified party, effect any settlement or compromise of, or consent to the
entry of judgment with respect to, any pending or threatened action in respect
of which the indemnified party is or could have been a party and indemnity or
contribution may be or could have been sought hereunder by the indemnified
party, unless such settlement, compromise or judgment (i) includes an
unconditional release of the indemnified party from all liability on claims that
are or could have been the subject matter of such action 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 the indemnified party.

      (d) To the extent that the indemnification provided for in this Section 8
is unavailable to an indemnified party in respect of any losses, claims,
damages, liabilities or judgments referred to therein, then each indemnifying
party, in lieu of indemnifying such indemnified party, shall contribute to the
amount paid or payable by such indemnified party as a result of such losses,
claims, damages, liabilities or judgments (i) in such proportion as is
appropriate to reflect the relative benefits received by the Company and the
Guarantors, on the one hand, and the Holders, on the other hand, from their sale
of Transfer Restricted Securities or (ii) if the allocation provided by clause
8(d)(i) is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause 8(d)(i) hereof
but also the relative fault of the Company and the Guarantors, on the one hand,
and of the Holder, on the other hand, in connection with the statements or
omissions which resulted in such losses, claims, damages, liabilities or
judgments, as well as any other relevant equitable considerations. The relative
fault of the Company and the Guarantors, on the one hand, and of the Holder, on
the other hand, 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 or such Guarantor, on the one hand, or by the Holder, on the other hand,
and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission. The amount paid or
payable by an indemnified party as a result of the losses, claims, damages,
liabilities or judgments referred to above shall be deemed to include, subject
to the limitations set forth in the second paragraph of Section 8(a), any legal
or other fees or expenses reasonably incurred by such indemnified party in
connection with investigating or defending any matter, including any action that
could have given rise to such losses, claims, damages, liabilities or judgments.

      The Company, the Guarantors and each Holder agree that it would not be
just and equitable if contribution pursuant to this Section 8(d) were determined
by PRO RATA allocation (even if the Holders were treated as one entity for such
purpose) or by any other method of allocation which does not take account of the
equitable considerations referred to in the immediately preceding paragraph.
Notwithstanding the provisions of this Section 8, no Holder, its directors, its
officers or any Person, if any, who controls such Holder shall be required to
contribute, in the aggregate, any amount in excess of the amount by which the
total received by such Holder with respect to the sale of Transfer Restricted
Securities pursuant to a Registration Statement exceeds (i) the amount paid by
such Holder for such Transfer Restricted Securities and (ii) the amount of any
damages which such Holder 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 Act) shall be entitled to contribution from any person who was not guilty of
such fraudulent misrepresentation. The Holders' obligations to contribute
pursuant to this Section 8(d) are several in proportion to the respective
principal amount of Transfer Restricted Securities held by each Holder hereunder
and not joint.



                                       15


      (e) The Company and the Guarantors agree that the indemnity and
contribution provisions of this Section 8 shall apply to the Affiliated Market
Makers to the same extent and on the same conditions, as it applies to Holders.

SECTION 9.  RULE 144A AND RULE 144

      The Company and each Guarantor agrees with each Holder, for so long as any
Transfer Restricted Securities remain outstanding and during any period in which
the Company or such Guarantor (i) is not subject to Section 13 or 15(d) of the
Exchange Act (unless exempt therefrom pursuant to Rule 12h-5), to make
available, upon request of any Holder, to such Holder or beneficial owner of
Transfer Restricted Securities in connection with any sale thereof and any
prospective purchaser of such Transfer Restricted Securities designated by such
Holder or beneficial owner, the information required by Rule 144A(d)(4) under
the Act in order to permit resales of such Transfer Restricted Securities
pursuant to Rule 144A, and (ii) is subject to Section 13 or 15(d) of the
Exchange Act (or exempt therefrom pursuant to Rule 12h-5), to make all filings
required thereby in a timely manner in order to permit resales of such Transfer
Restricted Securities pursuant to Rule 144.

SECTION 10. MISCELLANEOUS

      (a) REMEDIES. The Company and the Guarantors acknowledge and agree that
any failure by the Company and/or the Guarantors to comply with their respective
obligations under Sections 3 and 4 hereof may result in material irreparable
injury to the Initial Purchaser or the Holders or Affiliated Market Makers 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 or Affiliated Market Makers may
obtain such relief as may be required to specifically enforce the Company's and
the Guarantors' obligations under Sections 3 and 4 hereof. The Company and the
Guarantors further agrees to waive the defense in any action for specific
performance that a remedy at law would be adequate.

      (b) NO INCONSISTENT AGREEMENTS. Neither the Company nor any Guarantor
will, 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.
Neither the Company nor any Guarantor has previously entered into any agreement
that will remain in effect after the issuance of the Notes granting any
registration rights with respect to its securities to any Person. 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 and the
Guarantors' 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 or departures from
the provisions hereof may not be given unless (i) in the case of Section 5
hereof and this Section 10(c)(i), the Company has obtained the written consent
of Holders of all outstanding Transfer Restricted Securities, and (ii) in the
case of all other provisions hereof, the Company has obtained the written
consent of Holders of a majority of the outstanding principal amount of Transfer
Restricted Securities (excluding Transfer Restricted Securities held by the
Company or its Affiliates). Notwithstanding the foregoing, a waiver or consent
to departure from the provisions hereof that relates exclusively to the rights
of Holders whose Transfer Restricted Securities are being tendered pursuant to
the Exchange Offer, and that does not affect directly or indirectly the rights
of other Holders whose Transfer Restricted Securities are not being tendered



                                       16


pursuant to such Exchange Offer, may be given by the Holders of a majority of
the outstanding principal amount of Transfer Restricted Securities subject to
such Exchange Offer.

      (d) THIRD PARTY BENEFICIARY. The Holders and Affiliated Market Makers
shall be third party beneficiaries to the agreements made hereunder between the
Company and the Guarantors, 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 its
rights or the rights of Holders hereunder.

      (e) NOTICES. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, first-class mail
(registered or certified, return receipt requested), telecopier, or air courier
guaranteeing overnight delivery:

            (i) if to a Holder, at the address set forth on the records of the
      Registrar under the Indenture, with a copy to the Registrar under the
      Indenture; and

            (ii) if to the Company or the Guarantors:

                 Advanstar Communications Inc.
                 545 Boylston Street, 9th Floor
                 Boston, Massachusetts 02116
                 Telecopier No.: 617-267-6900
                 Attention: Eric Lisman, Esq.

                 With a copy to:

                 Davis Polk & Wardwell
                 450 Lexington Avenue
                 New York, New York 10017
                 Telecopier No.: 212-450-4000
                 Attention:  Richard D. Truesdell, Esq.

      All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; five Business
Days after being deposited in the mail, postage prepaid, if mailed; when receipt
acknowledged, if telecopied; and on the next Business Day, if timely delivered
to an air courier guaranteeing overnight delivery.

      Copies of all such notices, demands or other communications shall be
concurrently delivered by the Person giving the same to the Trustee at the
address specified in the Indenture.

      Upon the date of filing of the Exchange Offer or a Shelf Registration
Statement, as the case may be, notice shall be delivered to Credit Suisse First
Boston Corporation (in the form attached hereto as EXHIBIT A) and shall be
addressed to: Attention: Compliance Department, Eleven Madison Avenue, New York,
New York 10010.

      (f) SUCCESSORS AND ASSIGNS. This Agreement shall inure to the benefit of
and be binding upon the successors and assigns of each of the parties,
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



                                       17


hereof or of the Purchase Agreement or the Indenture. If any transferee of any
Holder shall acquire Transfer Restricted Securities in any manner, whether by
operation of law or otherwise, such Transfer Restricted Securities shall be held
subject to all of the terms of this Agreement, and by taking and holding such
Transfer Restricted Securities such Person shall be conclusively deemed to have
agreed to be bound by and to perform all of the terms and provisions of this
Agreement, including the restrictions on resale set forth in this Agreement and,
if applicable, the Purchase Agreement, and such Person shall be entitled to
receive the benefits hereof.

      (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, WITHOUT REGARD TO THE
CONFLICT OF LAW RULES THEREOF.

      (j) SEVERABILITY. In the event that any one or more of the provisions
contained herein, 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) ENTIRE AGREEMENT. This Agreement is intended by the parties as a final
expression of their agreement and 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. There are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein
with respect to the registration rights granted with respect to the Transfer
Restricted Securities. This Agreement supersedes all prior agreements and
understandings between the parties with respect to such subject matter.

      (l) COMPLIANCE WITH FORM S-3. The Company agrees for the benefit of any
Affiliated Market Makers that for so long as any of the Transfer Restricted
Securities remain outstanding, if at any time sales by the Affiliated Market
Makers of the Transfer Restricted Securities will satisfy clauses 1 or 3 of the
"Transaction Requirements" specified in Form S-3 (or any comparable provision of
any successor form to Form S-3), the Company will use its reasonable best
efforts to comply with, and maintain its compliance with, the "Registrant
Requirements" of Form S-3 (or any comparable provision of any successor form to
Form S-3).


                                       18


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

                                       ADVANSTAR COMMUNICATIONS INC.


                                       By: /s/ David W. Montgomery
                                           ---------------------------------
                                           Name:
                                           Title:


                                       APPLIED BUSINESS TELECOMMUNICATIONS, INC.


                                       By: /s/ David W. Montgomery
                                           ---------------------------------
                                           Name:
                                           Title:

                                       MEN'S APPAREL GUILD IN CALIFORNIA, INC.


                                       By: /s/ David W. Montgomery
                                           ---------------------------------
                                           Name:
                                           Title:


CREDIT SUISSE FIRST BOSTON CORPORATION, acting on behalf of itself and as the
representative of the several initial purchasers



By: /s/ Howard Rimerman
   -----------------------------
   Name:
   Title:





                                    EXHIBIT A

                               NOTICE OF FILING OF
                    A/B EXCHANGE OFFER REGISTRATION STATEMENT

To:   Credit Suisse First Boston Corporation
      Eleven Madison Avenue
      New York, New York  10010
      Attention:  Compliance Department
      Fax: (212) 325-5884

From: Advanstar Communications Inc.
      545 Boylston Street, 9th Floor
      Boston, Massachusetts 02116
      Attention: General Counsel
      Fax: 617-267-6900

      12% Senior Subordinated Notes due 2011

      Date:                                  ___________, 2001

      For your information only (NO ACTION REQUIRED):

      Today, ___________, 2001, we filed [an A/B Exchange Registration]
Statement/a Shelf Registration Statement] with the Securities and Exchange
Commission.



                                      A-1