<PAGE>   1
                                                                   EXHIBIT 10.37


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                          REGISTRATION RIGHTS AGREEMENT



                          Dated as of November 19, 1999



                                  by and among



                                   VERIO INC.



                                       and



                           SALOMON SMITH BARNEY INC.,

               DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION


                        MORGAN STANLEY & CO. INCORPORATED
                              as Initial Purchasers




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                          REGISTRATION RIGHTS AGREEMENT


               THIS REGISTRATION RIGHTS AGREEMENT (the "Agreement") is made and
entered into as of November 19, 1999 by and among VERIO INC., a Delaware
corporation (the "Company"), and SALOMON SMITH BARNEY INC. ("Salomon"),
Donaldson, Lufkin & Jenrette Securities Corporation ("DLJ") and Morgan Stanley &
Co. Incorporated ("MSDW" and, together with Salomon and DLJ, the "Initial
Purchasers").

               This Agreement is made pursuant to the Purchase Agreement dated
as of November 16, 1999 by and among the Company and the Initial Purchasers (the
"Purchase Agreement"), which provides for, among other things, the sale by the
Company to the Initial Purchasers of an aggregate of $400,000,000 principal
amount of the Company's 10-5/8% Senior Notes due 2009 (the "Notes"). In order to
induce the Initial Purchasers to enter into the Purchase Agreement, the Company
has agreed to provide to the Initial Purchasers and their direct and indirect
transferees the registration rights set forth in this Agreement. The execution
and delivery of this Agreement is a condition to the closing under the Purchase
Agreement.

               In consideration of the foregoing, the parties hereto agree as
follows:

               1. Definitions. As used in this Agreement, the following
capitalized defined terms shall have the following meanings:

               "Additional Interest" see Section 2(e) hereof.

               "Advice" see the last paragraph Section 3 hereof.

               "Agreement" shall have the meaning set forth in the preamble to
     this Agreement.

               "Applicable Period" see Section 3(s) hereof.

               "Business Day" shall mean a day that is not a Saturday, a Sunday,
     or a day on which banking institutions in New York, New York are required
     to be closed.

               "Closing Time" shall mean the Closing Time as defined in the
     Purchase Agreement.


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                                      -2-


               "Company" shall have the meaning set forth in the preamble to
     this Agreement and also includes the Company's successors and permitted
     assigns.

               "Depositary" shall mean The Depository Trust Company, or any
     other depositary appointed by the Company; provided, however, that such
     depositary must have an address in the Borough of Manhattan, in The City of
     New York.

               "Effectiveness Period" see Section 2(b) hereof.

               "Effectiveness Target Date" see Section 2(e) hereof.

               "Event Date" see Section 2(e) hereof.

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

               "Exchange Notes" shall mean the 10-5/8% Senior Notes due 2009,
     Series B issued by the Company under the Indenture containing terms
     identical to the Notes (except that (i) interest thereon shall accrue from
     the last date on which interest was paid on the Notes or, if no such
     interest has been paid, from November 19, 1999, (ii) the transfer
     restrictions with respect to the Notes and all registration rights in
     respect thereof shall be eliminated and (iii) the provisions relating to
     Additional Interest shall be eliminated) to be offered to Holders of Notes
     in exchange for Notes pursuant to the Exchange Offer.

               "Exchange Offer" shall mean the exchange offer by the Company of
     Exchange Notes for Notes pursuant to Section 2(a) hereof.

               "Exchange Offer Registration" shall mean a registration under the
     Securities Act effected pursuant to Section 2(a) hereof.

               "Exchange Offer Registration Statement" shall mean an exchange
     offer registration statement on Form S-1, S-3 or S-4 (or, if applicable, on
     another appropriate form), and all amendments and supplements to such
     registration statement, in each case including the Prospectus contained
     therein, all exhibits thereto and all material incorporated by reference
     therein.


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                                      -3-


               "Exchange Period" see Section 2(a) hereof.

               "Holders" shall mean the Initial Purchasers, for so long as they
     own any Transfer Restricted Notes, each of their direct and indirect
     successors, assigns and transferees who become registered owners of
     Transfer Restricted Notes under the Indenture and each Participating
     Broker-Dealer that holds Exchange Notes for so long as such Participating
     Broker-Dealer is required to deliver a prospectus meeting the requirements
     of the Securities Act in connection with any resale of such Exchange Notes.

               "Indenture" shall mean the Indenture relating to the Notes dated
     as of November 19, 1999 between the Company, and U.S. Bank Trust National
     Association, as trustee, as the same may be amended from time to time in
     accordance with the terms thereof.

               "Initial Purchasers" shall have the meaning set forth in the
     preamble to this Agreement.

               "Inspectors" see Section 3(m) hereof.

               "Issue Date" shall mean the date on which the Notes are
     originally issued.

               "Majority Holders" shall mean the Holders of a majority of the
     aggregate principal amount of outstanding Transfer Restricted Notes.

               "Notes" shall have the meaning set forth in the preamble to this
     Agreement.

               "Participating Broker-Dealer" shall have the meaning set forth in
     Section 3(s) hereof.

               "Person" shall mean an individual, partnership, corporation,
     trust or unincorporated organization, or a government or agency or
     political subdivision thereof.

               "Private Exchange" see Section 2(a) hereof.

               "Private Exchange Notes" see Section 2(a) hereof.

               "Prospectus" shall mean the prospectus included in a Registration
     Statement, including any preliminary prospectus,


<PAGE>   5
                                      -4-


     and any such prospectus as amended or supplemented by any prospectus
     supplement, including a prospectus supplement with respect to the terms of
     the offering of any portion of the Transfer Restricted Notes covered by a
     Shelf Registration Statement, and by all other amendments and supplements
     to a prospectus, including post-effective amendments, and in each case
     including all material incorporated by reference therein.

               "Purchase Agreement" shall have the meaning set forth in the
     preamble to this Agreement.

               "Records" see Section 3(m) hereof.

               "Registration Expenses" shall mean any and all expenses incident
     to performance of or compliance by the Company with this Agreement,
     including without limitation: (i) all applicable SEC, stock exchange or
     National Association of Securities Dealers, Inc. (the "NASD") registration
     and filing fees, (ii) all fees and expenses incurred in connection with
     compliance with state securities or blue sky laws (including reasonable
     fees and disbursements of one counsel for Holders that are Initial
     Purchasers in connection with blue sky qualification of any of the Exchange
     Notes or Transfer Restricted Notes) and compliance with the rules of the
     NASD, (iii) all applicable expenses incurred by the Company in preparing or
     assisting in preparing, word processing, printing and distributing any
     Registration Statement, any Prospectus and any amendments or supplements
     thereto, and in preparing or assisting in preparing any other documents
     relating to the performance of and compliance with this Agreement, (iv) all
     rating agency fees, if any, (v) the fees and disbursements of counsel for
     the Company, (vii) all fees and expenses incurred in connection with the
     listing, if any, of any of the Transfer Restricted Notes on any securities
     exchange or exchanges, if the Company, in its discretion, elects to make
     any such listing; but excluding fees of counsel to the Holders and
     underwriting discounts and commissions and transfer taxes, if any, relating
     to the sale or disposition of Transfer Restricted Notes by a Holder.

               "Registration Statement" shall mean any registration statement
     (including, without limitation, the Exchange Offer Registration Statement
     and the Shelf Registration


<PAGE>   6
                                      -5-


     Statement) of the Company which covers any of the Exchange Notes or
     Transfer Restricted Notes pursuant to the provisions of this Agreement, and
     all amendments and supplements to any such Registration Statement,
     including post-effective amendments, in each case including the Prospectus
     contained therein, all exhibits thereto and all material incorporated by
     reference therein.

               "SEC" shall mean the Securities and Exchange Commission.

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

               "Shelf Registration" shall mean a registration effected pursuant
     to Section 2(b) hereof.

               "Shelf Registration Event Date" see Section 2(b).

               "Shelf Registration Statement" shall mean a "shelf" registration
     statement of the Company pursuant to the provisions of Section 2(b) hereof
     which covers all of the Transfer Restricted Notes or all of the Private
     Exchange Notes, as the case may be, on an appropriate form under Rule 415
     under the Securities Act, or any similar rule that may be adopted by the
     SEC, and all amendments and supplements to such registration statement,
     including post-effective amendments, in each case including the Prospectus
     contained therein, all exhibits thereto and all material incorporated by
     reference therein.

               "Target Consummation Date" see Section 2(a).

               "Target Effectiveness Date" see Section 2(a).

               "TIA" shall have the meaning set forth in Section 3(k) hereof.

               "Transfer Restricted Notes" means each Note until (i) the date on
     which such has been exchanged by a person other than a broker-dealer for an
     Exchange Note in the Exchange Offer, (ii) following the exchange by a
     broker-dealer in the Exchange Offer of a Note 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


<PAGE>   7
                                      -6-


     in the Exchange Offer Registration Statement, (iii) the date on which such
     Note has been effectively registered under the Securities Act and disposed
     of in accordance with the Shelf Registration Statement, (iv) the date on
     which such Note is distributed to the public pursuant to Rule 144(k) under
     the Securities Act (or any similar provision then in force, but not Rule
     144A under the Securities Act), (v) such Note shall have been otherwise
     transferred by the holder thereof and a new Note not bearing a legend
     restricting further transfer shall have been delivered by the Company and
     subsequent disposition of such Note shall not require registration or
     qualification under the Securities Act or any similar state law then in
     force or (vi) such Note ceases to be outstanding.

               "Trustee" shall mean the trustee with respect to the Notes under
     the Indenture.

               2. Registration Under the Securities Act.

               (a) Exchange Offer. The Company shall, for the benefit of the
Holders, at the Company's cost, (i) unless the Exchange Offer would not be
permitted by applicable law or SEC policy, file with the SEC within 90 days
after the Closing Time an Exchange Offer Registration Statement on an
appropriate form under the Securities Act covering the offer by the Company to
the Holders to exchange all of the Transfer Restricted Notes (other than Private
Exchange Notes (as defined below)) for a like principal amount of Exchange
Notes, (ii) unless the Exchange Offer would not be permitted by applicable law
or SEC policy, use its best efforts to have such Exchange Offer Registration
Statement declared effective under the Securities Act by the SEC not later than
the date which is 180 days after the Closing Time (the "Target Effectiveness
Date"), (iii) have such Registration Statement remain effective until the
closing of the Exchange Offer and (iv) unless the Exchange Offer would not be
permitted by applicable law or SEC policy, commence the Exchange Offer and use
its best efforts to issue, on or prior to the date which is 30 days after the
date on which the Exchange Offer Registration Statement was declared effective
by the SEC (the "Target Consummation Date"), Exchange Notes in exchange for all
Notes tendered prior thereto in the Exchange Offer. Upon the effectiveness of
the Exchange Offer Registration Statement, the Company shall promptly commence
the Exchange Offer, it being the objective of such Exchange Offer to enable


<PAGE>   8
                                      -7-


each Holder eligible and electing to exchange Transfer Restricted Notes for
Exchange Notes (assuming that such Holder is not an affiliate of the Company
within the meaning of Rule 405 under the Securities Act and is not a
broker-dealer tendering Transfer Restricted Notes acquired directly from the
Company for its own account, acquires the Exchange Notes in the ordinary course
of such Holder's business and has no arrangements or understandings with any
Person to participate in the Exchange Offer for the purpose of distributing
(within the meaning of the Securities Act) the Exchange Notes) and to transfer
such Exchange Notes from and after their receipt without any limitations or
restrictions under the Securities Act and under state securities or blue sky
laws.

               In connection with the Exchange Offer, the Company shall:

               (i) 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;

               (ii) keep the Exchange Offer open for acceptance for a period of
     not less than 20 Business Days after the date notice thereof is mailed to
     the Holders (or longer if required by applicable law) (such period referred
     to herein as the "Exchange Period");

               (iii) utilize the services of the Depositary for the Exchange
     Offer;

               (iv) permit Holders to withdraw tendered Notes at any time prior
     to the close of business, New York time, on the last Business Day of the
     Exchange Period, by sending to the institution specified in the notice, a
     telegram, telex, facsimile transmission or letter setting forth the name of
     such Holder, the principal amount of Notes delivered for exchange, and a
     statement that such Holder is withdrawing his election to have such Notes
     exchanged; and

               (v) otherwise comply in all material respects with all applicable
     laws relating to the Exchange Offer.

               If, prior to consummation of the Exchange Offer the Initial
Purchasers hold any Notes acquired by them and having the status of an unsold
allotment in the initial distribution,


<PAGE>   9
                                      -8-


the Company upon the request of any Initial Purchaser shall, simultaneously with
the delivery of the Exchange Notes in the Exchange Offer, issue and deliver to
such Initial Purchaser in exchange (the "Private Exchange") for the Notes held
by such Initial Purchaser, a like principal amount of debt securities of the
Company that are identical (except that such securities shall bear appropriate
transfer restrictions) to the Exchange Notes (the "Private Exchange Notes").

               The Exchange Notes and the Private Exchange Notes shall be issued
under (i) the Indenture or (ii) an indenture identical to all material respects
to the Indenture and which, in either case, has been qualified under the TIA or
is exempt from such qualification and shall provide that the Exchange Notes
shall not be subject to the transfer restrictions set forth in the Indenture.
The Indenture or such indenture shall provide that the Exchange Notes, the
Private Exchange Notes and the Notes shall vote and consent together on all
matters as one class and that none of the Exchange Notes, the Private Exchange
Notes or the Notes will have the right to vote or consent as a separate class on
any matter. The Private Exchange Notes shall be of the same series as and the
Company shall use all commercially reasonable efforts to have the Private
Exchange Notes bear the same CUSIP number as the Exchange Notes. The Company
shall not have any liability under this Agreement solely as a result of such
Private Exchange Notes not bearing the same CUSIP number as the Exchange Notes.

               The Exchange Offer and the Private Exchange shall not be subject
to any conditions, other than that (i) the Exchange Offer or Private Exchange,
as the case may be, does not violate applicable law or any applicable
interpretation of the staff of the SEC (ii) no action or proceeding shall have
been instituted or threatened in any court or by any governmental agency which
might materially impair the ability of the Company to proceed with the Exchange
Offer or the Private Exchange, and no material adverse development shall have
occurred in any existing action or proceeding with respect to the Company and
(iii) all governmental approvals shall have been obtained, which approvals the
Company deems necessary for the consummation of the Exchange Offer or Private
Exchange. As soon as practicable after the close of the Exchange Offer and/or
the Private Exchange, as the case may be, the Company shall:



<PAGE>   10
                                      -9-


            (i) accept for exchange all Transfer Restricted Notes or portions
     thereof properly tendered and not validly withdrawn pursuant to the
     Exchange Offer in accordance with the terms of the Exchange Offer
     Registration Statement and the letter of transmittal which is an exhibit
     thereto;

            (ii) accept for exchange all Notes properly tendered pursuant to the
     Private Exchange; and

            (iii) deliver, or cause to be delivered, to the Trustee for
     cancellation all Transfer Restricted Notes or portions thereof so accepted
     for exchange by the Company, and issue, and cause the Trustee under the
     Indenture to promptly authenticate and deliver to each Holder, a new
     Exchange Note or Private Exchange Note, as the case may be, equal in
     principal amount to the principal amount of the Transfer Restricted Notes
     surrendered by such Holder and accepted for exchange.

               To the extent not prohibited by any law or applicable
interpretation of the staff of the SEC, the Company shall use its best efforts
to complete the Exchange Offer as provided above, and shall comply with the
applicable requirements of the Securities Act, the Exchange Act and other
applicable laws in connection with the Exchange Offer. The Exchange Offer shall
not be subject to any conditions, other than those set forth in the immediately
preceding paragraph. Each Holder of Transfer Restricted Notes who wishes to
exchange such Transfer Restricted Notes for Exchange Notes in the Exchange Offer
will be required to make certain customary representations in connection
therewith, including representations that such Holder is not an affiliate of the
Company within the meaning of Rule 405 under the Securities Act, that any
Exchange Notes to be received by it will be acquired in the ordinary course of
business and that at the time of the commencement of the Exchange Offer it has
no arrangement with any Person to participate in the distribution (within the
meaning of the Securities Act) of the Exchange Notes. The Company shall inform
the Initial Purchasers of the names and addresses of the Holders to whom the
Exchange Offer is made, and the Initial Purchasers shall have the right to
contact such Holders and otherwise facilitate the tender of Transfer Restricted
Notes in the Exchange Offer.


<PAGE>   11
                                      -10-


               Upon consummation of the Exchange Offer in accordance with this
Section 2(a), the provisions of this Agreement shall continue to apply, mutatis
mutandis, solely with respect to Transfer Restricted Notes that are Private
Exchange Notes and Exchange Notes held by Participating Broker-Dealers, and the
Company shall have no further obligation to register Transfer Restricted Notes
(other than Private Exchange Notes) pursuant to Section 2(b) hereof.


               (b) Shelf Registration. If (i) the Company is not permitted to
file the Exchange Offer Registration Statement or to consummate the Exchange
Offer because the Exchange Offer is not permitted by applicable law or SEC
policy, (ii) the Exchange Offer is not for any other reason consummated by the
Target Consummation Date, (iii) any holder of Notes notifies the Company within
a specified time period that (a) due to a change in law or policy, in the
opinion of counsel, it is not entitled to participate in the Exchange Offer, (b)
due to a change in law or policy, in the opinion of counsel, it may not resell
the Exchange Notes acquired by it in the Exchange Offer to the public without
delivering a prospectus and (x) the prospectus contained in the Exchange Offer
Registration Statement is not appropriate or available for such resales by such
holder and (y) such prospectus is not promptly amended or modified in order to
be suitable for use in connection with such resales for such holder and all
similarly situated holders or (c) it is a broker-dealer and owns Notes acquired
directly from the Company or an affiliate of the Company, (iv) the holders of a
majority of the Notes may not resell the Exchange Notes acquired by them in the
Exchange Offer to the public without restriction under the Securities Act and
without restriction under applicable blue sky or state securities laws or (v)
the Exchange Offer shall not have been consummated within 180 days after the
Issue Date (the date of any of (i)-(v), the "Shelf Registration Event Date"),
then the Company shall, at its cost, use its best efforts to cause to be filed a
Shelf Registration Statement prior to the later of (A) 30 days after the Shelf
Registration Event Date or (B) 210 days after the Issue Date and use its best
efforts to cause the Shelf Registration Statement to be declared effective by
the SEC on or prior to 90 days after such obligation arises. Each Holder as to
which any Shelf Registration is being effected agrees to furnish to the Company
all information with respect to such Holder necessary to make any information
previously furnished to the Company by such Holder not materially misleading.


<PAGE>   12
                                      -11-


               The Company agrees to use its best efforts to keep the Shelf
Registration Statement continuously effective for a period of two years from the
Issue Date (subject to extension pursuant to the last paragraph of Section 3
hereof) (or such shorter period that will terminate when all of the Transfer
Restricted Notes covered by such Shelf Registration Statement have been sold
pursuant thereto) or cease to be outstanding (the "Effectiveness Period");
provided, however, that the Effectiveness Period in respect of the Shelf
Registration Statement shall be extended to the extent required to permit
dealers to comply with the applicable prospectus delivery requirements of Rule
174 under the Securities Act and as otherwise provided herein. The Company shall
not permit any securities other than Transfer Restricted Notes to be included in
the Shelf Registration. The Company further agrees, if necessary, to supplement
or amend the Shelf Registration Statement, if required by the rules, regulations
or instructions applicable to the registration form used by the Company for such
Shelf Registration Statement or by the Securities Act or by any other rules and
regulations thereunder for shelf registrations, and the Company agrees to
furnish to the Holders of Transfer Restricted Notes copies of any such
supplement or amendment promptly after its being used or filed with the SEC.

               (c) Expenses. The Company shall pay all Registration Expenses in
connection with the registration pursuant to Section 2(a) or 2(b) hereof and the
reasonable fees and expenses of one counsel, if any, designated in writing by
the Majority Holders to act as counsel for the Holders of the Transfer
Restricted Notes in connection with a Shelf Registration Statement. Except as
provided in the preceding sentence, each Holder shall pay all expenses of its
counsel, underwriting discounts and commissions and transfer taxes, if any,
relating to the sale or disposition of such Holder's Transfer Restricted Notes
pursuant to the Shelf Registration Statement.

               (d) Effective Registration Statement. An Exchange Offer
Registration Statement pursuant to Section 2(a) hereof or a Shelf Registration
Statement pursuant to Section 2(b) hereof will not be deemed to have become
effective unless it has been declared effective by the SEC; provided, however,
that if, after it has been declared effective, the offering of Transfer


<PAGE>   13
                                      -12-


Restricted Notes pursuant to a Shelf Registration Statement is interfered with
by any stop order, injunction or other order or requirement of the SEC or any
other governmental agency or court, such Registration Statement will be deemed
not to have been effective during the period of such interference, until the
offering of Transfer Restricted Notes may legally resume. The Company will be
deemed not to have used its best efforts to cause the Exchange Offer
Registration Statement or the Shelf Registration Statement, as the case may be,
to become, or to remain, effective during the requisite period if it voluntarily
takes any action that would result in any such Registration Statement not being
declared effective or in the Holders of Transfer Restricted Notes covered
thereby not being able to exchange or offer and sell such Transfer Restricted
Notes during that period, unless such action is required by applicable law and
except as otherwise provided in the second paragraph of Section 2(e) below.

               (e) Additional Interest. In the event that (i) the applicable
Registration Statement is not filed with the SEC on or prior to the date
specified herein for such filing, (ii) the applicable Registration Statement is
not declared effective on or prior to the date specified herein for such
effectiveness after such obligation arises (the "Effectiveness Target Date"),
(iii) if the Exchange Offer is required to be consummated hereunder, the Company
fails to consummate the Exchange Offer within 30 days of the date on which the
Exchange Offer Registration Statement is declared effective or (iv) the
applicable Registration Statement is filed and declared effective during the
period effectiveness is required by Section 2(e) and 3(a) but shall thereafter
cease to be effective or usable without being succeeded immediately by an
additional Registration Statement covering the Transfer Restricted Notes which
has been filed and declared effective (each such event referred to in clauses
(i) through (iv), a "Registration Default"), then the interest rate on the
Transfer Restricted Notes as to which such Registration Default relates will
increase ("Additional Interest"), with respect to the first 90-day period (or
portion thereof) while a Registration Default is continuing immediately
following the occurrence of such Registration Default in an amount equal to
0.50% per annum of the principal amount of the Notes. The rate of additional
Interest will increase by an additional 0.50% per annum of the principal amount
of the Notes for each subsequent 90-day period (or portion thereof) while a
Registration Default is continuing until all Registration Defaults


<PAGE>   14
                                      -13-


have been cured, up to a maximum amount of 1.50% of the principal amount of the
Notes. Additional Interest shall be computed based on the actual number of days
elapsed during which any such Registration Defaults exist. Following the cure of
a Registration Default, the accrual of Additional Interest with respect to such
Registration Default will cease.

               If the Company issues a notice that the Shelf Registration
Statement is unusable due to the pendency of an announcement of a material
corporate transaction, or such notice is required under applicable securities
laws to be issued by the Company, and the aggregate number of days in any
consecutive twelve-month period for which the Shelf Registration Statement shall
not be usable due to all such notices issued or required to be issued exceeds 30
days in the aggregate, then the interest rate borne by the Notes will be
increased by 0.50% per annum of the principal amount of the Notes for the first
90-day period (or portion thereof) beginning on the 31st such date that such
Shelf Registration Statement ceases to be usable, which rate shall be increased
by an additional 0.50% per annum of the principal amount of the Notes at the
beginning of each subsequent 90-day period, up to a maximum amount of 1.50% of
the principal amount of the Notes. Upon the Shelf Registration Statement once
again becoming usable, the interest rate borne by the Notes will be reduced to
the original interest rate if the Company is otherwise in compliance with this
Agreement at such time. Additional Interest shall be computed based on the
actual number of days elapsed in each 90-day period in which the Shelf
Registration Statement is unusable.

               The Company shall notify the Trustee within three Business Days
after each and every date on which an event occurs in respect of which
Additional Interest is required to be paid (an "Event Date"). Additional
Interest shall be paid by depositing with the Trustee, in trust, for the benefit
of the Holders of Transfer Restricted Notes, on or before the applicable
semiannual interest payment date, immediately available funds in sums sufficient
to pay the Additional Interest then due. The Additional Interest due shall be
payable on each interest payment date to the record Holder of Notes entitled to
receive the interest payment to be paid on such date as set forth in the
Indenture. Each obligation to pay Additional Interest shall be deemed to accrue
from and including the day following the applicable Event Date.


<PAGE>   15
                                      -14-


               3. Registration Procedures. In connection with the obligations of
the Company with respect to the Registration Statements pursuant to Sections
2(a) and 2(b) hereof, the Company shall:

               (a) prepare and file with the SEC a Registration Statement or
     Registration Statements as prescribed by Sections 2(a) and 2(b) hereof
     within the relevant time period specified in Section 2 hereof on the
     appropriate form under the Securities Act, which form (i) shall be selected
     by the Company, (ii) shall, in the case of a Shelf Registration, be
     available for the sale of the Transfer Restricted Notes by the selling
     Holders thereof and (iii) shall comply as to form in all material respects
     with the requirements of the applicable form and include all financial
     statements required by the SEC to be filed therewith; and use their best
     efforts to cause such Registration Statement to become effective and remain
     effective in accordance with Section 2 hereof. The Company shall not file
     any Registration Statement or Prospectus or any amendments or supplements
     thereto in respect of which the Holders must provide information for
     inclusion therein without the Holders being afforded an opportunity to
     review such documentation a reasonable time prior to the filing of such
     document if the Majority Holders or such Participating Broker-Dealer, as
     the case may be, their counsel or the managing underwriters, if any, shall
     reasonably object;

               (b) prepare and file with the SEC such amendments and
     post-effective amendments to each Registration Statement as may be
     necessary to keep such Registration Statement effective for the
     Effectiveness Period or the Applicable Period, as the case may be; and
     cause each Prospectus to be supplemented by any required prospectus
     supplement and as so supplemented to be filed pursuant to Rule 424 (or any
     similar provision then in force) under the Securities Act, and comply with
     the provisions of the Securities Act, the Exchange Act and the rules and
     regulations promulgated thereunder applicable to it with respect to the
     disposition of all securities covered by each Registration Statement during
     the Effectiveness Period or the Applicable Period, as the case may be, in
     accordance with the intended method or methods of distribution by the


<PAGE>   16
                                      -15-


     selling Holders thereof described in this Agreement (including sales by any
     Participating Broker-Dealer);

               (c) in the case of a Shelf Registration, (i) notify each Holder
     of Transfer Restricted Notes, at least three Business Days prior to filing,
     that a Shelf Registration Statement with respect to the Transfer Restricted
     Notes is being filed and advising such Holder that the distribution of
     Transfer Restricted Notes will be made in accordance with the method
     selected by the Majority Holders; and (ii) furnish to each Holder of
     Transfer Restricted Notes, without charge, as many copies of each
     Prospectus, and any amendment or supplement thereto and such other
     documents as such Holder may reasonably request, in order to facilitate the
     disposition of the Transfer Restricted Notes; and (iii) subject to the last
     paragraph of Section 3 hereof, hereby consent to the use of the Prospectus
     or any amendment or supplement thereto by each of the selling Holders of
     Transfer Restricted Notes in connection with the offering and sale of the
     Transfer Restricted Notes covered by such Prospectus or any amendment or
     supplement thereto subject to the limitations on the use thereof provided
     in Sections 2(b) and 2(c);

               (d) in the case of a Shelf Registration, use its best efforts to
     register or qualify, as may be required by applicable law, the Transfer
     Restricted Notes under all applicable state securities or "blue sky" laws
     of such jurisdictions by the time the applicable Registration Statement is
     declared effective by the SEC as any Holder of Transfer Restricted Notes
     covered by a Registration Statement shall reasonably request in advance of
     such date of effectiveness, and do any and all other acts and things which
     may be reasonably necessary or advisable to enable such Holder to
     consummate the disposition in each such jurisdiction of such Transfer
     Restricted Notes owned by such Holder; provided, however, that the Company
     shall not be required to (i) qualify as a foreign corporation or as a
     broker or dealer in securities in any jurisdiction where it would not
     otherwise be required to qualify but for this Section 3(d), (ii) file any
     general consent to service of process or (iii) subject itself to taxation
     in any such jurisdiction if it is not so subject;


<PAGE>   17
                                      -16-


               (e) in the case of (1) a Shelf Registration or (2) Participating
     Broker-Dealers who have notified the Company that they will be utilizing
     the Prospectus contained in the Exchange Offer Registration Statement as
     provided in Section 3(t) hereof, notify each Holder of Transfer Restricted
     Notes, or such Participating Broker-Dealers, as the case may be, their
     counsel, if any, promptly and confirm such notice in writing (i) when a
     Registration Statement has become effective and when any post-effective
     amendments and supplements thereto become effective, (ii) of any request by
     the SEC or any state securities authority for amendments and supplements to
     a Registration Statement or Prospectus or for additional information after
     the Registration Statement has become effective, (iii) of the issuance by
     the SEC or any state securities authority of any stop order suspending the
     effectiveness of a Registration Statement or the initiation of any
     proceedings for that purpose, (iv) if the Company receives any notification
     with respect to the suspension of the qualification of the Transfer
     Restricted Notes or the Exchange Notes to be sold by any Participating
     Broker-Dealer for offer or sale in any jurisdiction or the initiation of
     any proceeding for such purpose, (v) of the happening of any event or the
     failure of any event to occur or the discovery of any facts or otherwise,
     during the period a Shelf Registration Statement is effective which makes
     any statement made in such Registration Statement or the related Prospectus
     untrue in any material respect or which causes such Registration Statement
     or Prospectus to omit to state a material fact necessary to make the
     statements therein, in the light of the circumstances under which they were
     made, not misleading and (vi) the Company's reasonable determination that a
     post-effective amendment to the Registration Statement would be
     appropriate;

               (f) make every reasonable effort to obtain the withdrawal of any
     order suspending the effectiveness of a Registration Statement as soon as
     practicable;

               (g) in the case of a Shelf Registration, furnish to each Holder
     of Transfer Restricted Notes, without charge, at least one conformed copy
     of each Registration Statement relating to such Shelf Registration and any
     post-effective


<PAGE>   18
                                      -17-


     amendment thereto (without documents incorporated therein by reference or
     exhibits thereto, unless requested);

               (h) in the case of a Shelf Registration, cooperate with the
     selling Holders of Transfer Restricted Notes to facilitate the timely
     preparation and delivery of certificates not bearing any restrictive
     legends representing Notes covered by such Shelf Registration to be sold
     and relating to the subsequent transfer of such Notes; and cause such
     Transfer Restricted Notes to be in such denominations (consistent with the
     provisions of the Indenture) and registered in such names as the selling
     Holders may reasonably request at least two Business Days prior to the
     closing of any sale of Transfer Restricted Notes;

               (i) in the case of a Shelf Registration or an Exchange Offer
     Registration, upon the occurrence of any circumstance contemplated by
     Section 3(e)(ii), 3(e)(iii), 3(e)(iv), 3(e)(v) or 3(e)(vi) hereof, use
     their best efforts to prepare a supplement or post-effective amendment to a
     Registration Statement or the related Prospectus or any document
     incorporated therein by reference or file any other required document so
     that, as thereafter delivered to the purchasers of the Transfer Restricted
     Notes, such Prospectus will not contain any untrue statement of a material
     fact or omit to state a material fact necessary to make the statements
     therein, in the light of the circumstances under which they were made, not
     misleading; and to notify each Holder to suspend use of the Prospectus as
     promptly as practicable after the occurrence of such an event, and each
     Holder hereby agrees to suspend use of the Prospectus until the Company has
     amended or supplemented the Prospectus to correct such misstatement or
     omission;

               (j) obtain a CUSIP number for all Exchange Notes or Transfer
     Restricted Notes, as the case may be, not later than the effective date of
     a Registration Statement, and provide the Trustee with certificates for the
     Exchange Notes or the Transfer Restricted Notes, as the case may be, in a
     form eligible for deposit with the Depositary;

               (k) cause the Indenture to be qualified under the Trust Indenture
     Act of 1939, as amended, (the "TIA") in connection with the registration of
     the Exchange Notes or Transfer Restricted Notes, as the case may be,
     cooperate


<PAGE>   19
                                      -18-


     with the Trustee and the Holders to effect such changes to the Indenture as
     may be required for the Indenture to be so qualified in accordance with the
     terms of the TIA and execute, and use its best efforts to cause the Trustee
     to execute, all documents as may be required to effect such changes, and
     all other forms and documents required to be filed with the SEC to enable
     the Indenture to be so qualified in a timely manner;

               (l) in the case of a Shelf Registration, enter into such
     agreements (including underwriting agreements) and take all such other
     appropriate actions as are reasonably requested in order to expedite or
     facilitate the registration or the disposition of such Transfer Restricted
     Notes, and in such connection, (i) make such representations and warranties
     to Holders of such Transfer Restricted Notes with respect to the business
     of the Company and its subsidiaries as then conducted and the Registration
     Statement, Prospectus and documents, if any, incorporated or deemed to be
     incorporated by reference therein, in each case, as are customarily made by
     issuers to underwriters in underwritten offerings, and confirm the same if
     and when requested; (ii) obtain opinions of counsel to the Company and
     updates thereof in form and substance reasonably satisfactory to the
     Holders of a majority in principal amount of the Transfer Restricted Notes
     being sold, addressed to each selling Holder covering the matters
     customarily covered in opinions requested in underwritten offerings and
     such other matters as may be reasonably requested by such Holders; (iii)
     obtain "cold comfort" letters and updates thereof from the independent
     certified public accountants of the Company (and, if necessary, any other
     independent certified public accountants of any subsidiary of the Company
     or of any business acquired by the Company for which financial statements
     and financial data are, or are required to be, included in the Registration
     Statement, addressed to the selling Holders of Transfer Restricted Notes,
     such letters to be in customary form and covering matters of the type
     customarily covered in "cold comfort" letters in connection with
     underwritten offerings and such other matters as reasonably requested by
     such selling Holders; and (iv) if an underwriting agreement is entered
     into, the same shall contain indemnification provisions and procedures no
     less favorable than those set forth in Section 4 hereof (or such other
     provisions and


<PAGE>   20
                                      -19-


     procedures acceptable to the Company and the Holders of a majority in
     aggregate principal amount of Transfer Restricted Notes covered by such
     Registration with respect to all parties to be indemnified pursuant to said
     Section (including, without limitation, such selling Holders). The above
     shall be done at each closing in respect of the sale of Transfer Restricted
     Notes, or as and to the extent required thereunder;

               (m) if (1) a Shelf Registration is filed pursuant to Section 2(b)
     or (2) a Prospectus contained in an Exchange Offer Registration Statement
     filed pursuant to Section 2(a) is required to be delivered under the
     Securities Act by any Participating Broker-Dealer who seeks to sell
     Exchange Notes during the Applicable Period, make available for inspection
     by each such person who would be an "underwriter" as a result of either (i)
     the sale by such person of Notes covered by such Shelf Registration
     Statement or (ii) the sale during the Applicable Period by a Participating
     Broker-Dealer of Exchange Notes (provided that a Participating
     Broker-Dealer shall not be deemed to be an underwriter solely as a result
     of it being required to deliver a prospectus in connection with any resale
     of Exchange Notes) and any attorney, accountant or other agent retained by
     any such person (collectively, the "Inspectors"), at the offices where
     normally kept, during reasonable business hours, all financial and other
     records, pertinent corporate documents and properties of the Company and
     its subsidiaries (collectively, the "Records") as shall be reasonably
     necessary to enable them to exercise any applicable due diligence
     responsibilities, and cause the officers, directors and employees of the
     Company and its subsidiaries to supply all information in each case
     reasonably requested by any such Inspector in connection with such
     Registration Statement. Records which the Company determines, in good
     faith, to be confidential and any Records which it notifies the Inspectors
     are confidential shall not be disclosed by the Inspectors unless (i) the
     disclosure of such Records is necessary to avoid or correct a material
     misstatement or omission in such Registration Statement, (ii) the release
     of such Records is ordered pursuant to a subpoena or other order from a
     court of competent jurisdiction or (iii) the information in such Records
     has been made generally available to the public. Each selling Holder of
     such Transfer Restricted Notes and


<PAGE>   21
                                      -20-


     each such Participating Broker-Dealer will be required to agree that
     information obtained by it as a result of such inspections shall be deemed
     confidential and shall not be used by it as the basis for any market
     transactions in the securities of the Company unless and until such is made
     generally available to the public. Each selling Holder of such Transfer
     Restricted Notes and each such Participating Broker-Dealer will be required
     to further agree that it will, upon learning that disclosure of such
     Records is sought in a court of competent jurisdiction, give notice to the
     Company and allow the Company at its expense to undertake appropriate
     action to prevent disclosure of the Records deemed confidential;

               (n) comply with all applicable rules and regulations of the SEC
     and make generally available to its securityholders earnings statements
     satisfying the provisions of Section 11(a) of the Securities Act and Rule
     158 thereunder (or any similar rule promulgated under the Securities Act)
     no later than 60 days after the end of any 12-month period (or 135 days
     after the end of any 12-month period if such period is a fiscal year) (i)
     commencing at the end of any fiscal quarter in which Transfer Restricted
     Notes are sold to underwriters in a firm commitment or best efforts
     underwritten offering and (ii) if not sold to underwriters in such an
     offering, commencing on the first day of the first fiscal quarter of the
     Company after the effective date of a Registration Statement, which
     statements shall cover said 12-month periods;

               (o) upon consummation of an Exchange Offer or a Private Exchange,
     obtain an opinion of counsel to the Company addressed to the Trustee for
     the benefit of all Holders of Transfer Restricted Notes participating in
     the Exchange Offer or the Private Exchange, as the case may be, and which
     includes an opinion that (i) the Company has duly authorized, executed and
     delivered the Exchange Notes and Private Exchange Notes, and (ii) each of
     the Exchange Notes or the Private Exchange Notes, as the case may be,
     constitute a legal, valid and binding obligation of the Company,
     enforceable against the Company in accordance with its respective terms (in
     each case, with customary exceptions);


<PAGE>   22
                                      -21-


               (p) if an Exchange Offer or a Private Exchange is to be
     consummated, upon proper delivery of the Transfer Restricted Notes by
     Holders to the Company (or to such other Person as directed by the Company)
     in exchange for the Exchange Notes or the Private Exchange Notes, as the
     case may be, the Company shall mark, or cause to be marked, on such
     Transfer Restricted Notes and on the books of the Trustee, the Transfer
     Agent, the Registrar and the Depositary delivered by such Holders that such
     Transfer Restricted Notes are being canceled in exchange for the Exchange
     Notes or the Private Exchange Notes, as the case may be; but in no event
     shall such Transfer Restricted Notes be marked as paid or otherwise
     satisfied solely as a result of being exchanged for Exchange Notes or
     Private Exchange Notes in the Exchange Offer or the Private Exchange, as
     the case may be;

               (q) cooperate with each seller of Transfer Restricted Notes
     covered by any Registration Statement participating in the disposition of
     such Transfer Restricted Notes and one counsel acting on behalf of all such
     sellers in connection with the filings, if any, required to be made with
     the NASD;

               (r) use its best efforts to take all other steps necessary to
     effect the registration of the Transfer Restricted Notes covered by a
     Registration Statement contemplated hereby; and

               (s) (A) in the case of the Exchange Offer Registration Statement
     (i) include in the Exchange Offer Registration Statement a section entitled
     "Plan of Distribution," which section shall be reasonably acceptable to
     Salomon, as representative of the Initial Purchasers, and which shall
     contain a summary statement of the positions taken or policies made by the
     staff of the SEC with respect to the potential "underwriter" status of any
     broker-dealer (a "Participating Broker-Dealer") that holds Transfer
     Restricted Notes acquired for its own account as a result of market-making
     activities or other trading activities and that will be the beneficial
     owner (as defined in Rule 13d-3 under the Exchange Act) of Exchange Notes
     to be received by such broker-dealer in the Exchange Offer, whether such
     positions or policies have been publicly disseminated by the staff of the
     SEC or such positions or policies, in the


<PAGE>   23
                                      -22-


     reasonable judgment of Salomon, as representative of the Initial Purchasers
     or such other representative, represent the prevailing views of the staff
     of the SEC, including a statement that any such broker-dealer who receives
     Exchange Notes for Transfer Restricted Notes pursuant to the Exchange Offer
     may be deemed a statutory underwriter and must deliver a prospectus meeting
     the requirements of the Securities Act in connection with any resale of
     such Exchange Notes, (ii) furnish to each Participating Broker-Dealer who
     has delivered to the Company the notice referred to in Section 3(e),
     without charge, as many copies of each Prospectus included in the Exchange
     Offer Registration Statement, and any amendment or supplement thereto, as
     such Participating Broker-Dealer may reasonably request; (iii) hereby
     consent to the use of the Prospectus forming part of the Exchange Offer
     Registration Statement or any amendment or supplement thereto, by any
     Person subject to the prospectus delivery requirements of the SEC,
     including all Participating Broker-Dealers, in connection with the sale or
     transfer of the Exchange Notes covered by the Prospectus or any amendment
     or supplement thereto, (iv) use their best efforts to keep the Exchange
     Offer Registration Statement effective and to amend and supplement the
     Prospectus contained therein 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 Notes;
     provided, however, that such period shall not be required to exceed 90 days
     (or such longer period if extended pursuant to the last sentence of Section
     3 hereof) (the "Applicable Period"), and (iv) include in the transmittal
     letter or similar documentation to be executed by an exchange offeree in
     order to participate in the Exchange Offer (x) the following provision:

          "If the exchange offeree is a broker-dealer holding Transfer
          Restricted Notes acquired for its own account as a result of
          market-making activities or other trading activities, it will deliver
          a prospectus meeting the requirements of the Securities Act in
          connection with any resale of Exchange Notes received in respect of
          such Transfer Restricted Notes pursuant to the Exchange Offer";


<PAGE>   24
                                      -23-


          and (y) a statement to the effect that by a broker-dealer making the
          acknowledgment described in clause (x) and by delivering a Prospectus
          in connection with the exchange of Transfer Restricted Notes, such
          broker-dealer will not be deemed to admit that it is an underwriter
          within the meaning of the Securities Act; and

               (B) in the case of any Exchange Offer Registration Statement, the
          Company agrees to deliver, upon request, to the Trustee or to
          Participating Broker-Dealers upon consummation of the Exchange Offer
          (i) an opinion of counsel substantially in the form attached hereto as
          Exhibit A, and (ii) an officers' certificate containing certifications
          substantially similar to those set forth in Section 6(c) of the
          Purchase Agreement.

               The Company may require each seller of Transfer Restricted Notes
as to which any registration is being effected to furnish to the Company such
information regarding such seller and the proposed distribution of such Transfer
Restricted Notes, as the Company may from time to time reasonably request in
writing. The Company may exclude from such registration the Transfer Restricted
Notes of any seller who fails to furnish such information within a reasonable
time (not to exceed 10 Business Days) after receiving such request and shall be
under no obligation to compensate any such seller for any lost income, interest
or other opportunity forgone, or any liability incurred, as a result of the
Company's decision to exclude such seller.

               In the case of (1) a Shelf Registration Statement or (2)
Participating Broker-Dealers who have notified the Company that they will be
utilizing the Prospectus contained in the Exchange Offer Registration Statement
as provided in Section 3(t) hereof, that are seeking to sell Exchange Notes and
are required to deliver Prospectuses, each Holder agrees that, upon receipt of
any notice from the Company of the happening of any event of the kind described
in Section 3(e)(ii), 3(e)(iii), 3(e)(v), 3(e)(vi) or 3(e)(vii) hereof, such
Holder will forthwith discontinue disposition of Transfer Restricted Notes
pursuant to a Registration Statement until such Holder's receipt of the copies
of the supplemented or amended Prospectus contemplated by Section 3(i) hereof or
until it is advised in writing (the "Advice") by the Company that the use of the
applicable Prospectus may be resumed, and, if so directed by the Company,


<PAGE>   25
                                      -24-


such Holder will deliver to the Company (at the Company's expense) all copies in
such Holder's possession, other than permanent file copies then in such Holder's
possession, of the Prospectus covering such Transfer Restricted Notes or
Exchange Notes, as the case may be, current at the time of receipt of such
notice. If the Company shall give any such notice to suspend the disposition of
Transfer Restricted Notes or Exchange Notes, as the case may be, pursuant to a
Registration Statement, the Company shall use its best efforts to file and have
declared effective (if an amendment) as soon as practicable an amendment or
supplement to the Registration Statement and, in the case of an amendment, have
such amendment declared effective as soon as practicable and shall extend the
period during which such Registration Statement shall be maintained effective
pursuant to this Agreement by the number of days in the period from and
including the date of the giving of such notice to and including the date when
the Company shall have made available to the Holders (x) copies of the
supplemented or amended Prospectus necessary to resume such dispositions or (y)
the Advice.

               4. Indemnification and Contribution. (a) The Company shall
indemnify and hold harmless each Initial Purchaser, each Holder, each
Participating Broker-Dealer, each underwriter who participates in an offering of
Transfer Restricted Notes, their respective affiliates, each Person, if any, who
controls any of such parties within the meaning of Section 15 of the Securities
Act or Section 20 of the Exchange Act, as follows:

               (i) against any and all loss, liability, claim, damage and
          expense whatsoever, joint or several, as incurred, arising out of any
          untrue statement or alleged untrue statement of a material fact
          contained in any Registration Statement (or any amendment or
          supplement thereto), covering Transfer Restricted Notes or Exchange
          Notes, including all documents incorporated therein by reference, or
          the omission or alleged omission therefrom of a material fact required
          to be stated therein or necessary to make the statements therein not
          misleading or arising out of any untrue statement or alleged untrue
          statement of a material fact contained in any Prospectus (or any
          amendment or supplement thereto) or the omission or alleged omission
          therefrom of a material fact necessary in order to make the statements
          therein, in the light of the circumstances under which they were made,
          not misleading;


<PAGE>   26
                                      -25-


               (ii) against any and all loss, liability, claim, damage and
     expense whatsoever, joint or several, as incurred, to the extent of the
     aggregate amount paid in settlement of any litigation, or any investigation
     or proceeding by any court or governmental agency or body, commenced or
     threatened, or of any claim whatsoever based upon any such untrue statement
     or omission, or any such alleged untrue statement or omission; provided
     that (subject to Sections 4(c) and 4(d) below) any such settlement is
     effected with the prior written consent of the Company; and

               (iii) against any and all expenses whatsoever, as incurred
     (including reasonable fees and disbursements of one counsel (in addition to
     any local counsel) chosen by Salomon, such Holder, such Participating
     Broker-Dealer or any underwriter (except to the extent otherwise expressly
     provided in Section 4(c) hereof)), reasonably incurred in investigating,
     preparing or defending against any litigation, or any investigation or
     proceeding by any court or governmental agency or body, commenced or
     threatened, or any claim whatsoever based upon any such untrue statement or
     omission, or any such alleged untrue statement or omission, to the extent
     that any such expense is not paid under subparagraph (i) or (ii) of this
     Section 4(a);

provided, however, that this indemnity does not apply to any loss, liability,
claim, damage or expense to the extent arising out of an untrue statement or
omission or alleged untrue statement or omission (i) made in reliance upon and
in conformity with written information furnished in writing to the Company by or
on behalf of such Initial Purchaser, such Holder, such Participating
Broker-Dealer or any underwriter with respect to such Initial Purchaser, Holder,
Participating Broker-Dealer or underwriter, as the case may be, expressly for
use in the Registration Statement (or any amendment or supplement thereto) or
any Prospectus (or any amendment or supplement thereto) or (ii) contained in any
preliminary prospectus if such Initial Purchaser, such Holder, such
Participating Broker-Dealer or such underwriter failed to send or deliver a copy
of the Prospectus (in the form it was first provided to such parties for
confirmation of sales) to the Person asserting such losses, claims, damages or
liabilities on or prior to the delivery of written confirmation of any sale of
securities covered thereby to such Person in any case where the Company shall
have previously furnished copies thereof to such Initial Purchaser, such


<PAGE>   27
                                      -26-


Holder, such Participating Broker-Dealer or such underwriter, as the case may
be, in accordance with this Agreement, at or prior to the written confirmation
of the sale of such Notes to such Person and the untrue statement contained in
or the omission from the preliminary prospectus was corrected in the Final
Prospectus (or any amendment or supplement thereto). Any amounts advanced by the
Company to an indemnified party pursuant to this Section 4 as a result of such
losses shall be returned to the Company if it shall be finally determined by a
court of competent jurisdiction in a judgment not subject to appeal or final
review that such indemnified party was not entitled to indemnification by the
Company.

               (b) Each Holder agrees, severally and not jointly, to indemnify
and hold harmless the Company, each Initial Purchaser, each underwriter who
participates in an offering of Transfer Restricted Notes and the other selling
Holders and each of their respective directors and each Person, if any, who
controls any of the Company, any Initial Purchaser, any underwriter or any other
selling Holder within the meaning of Section 15 of the Act or Section 20 of the
Exchange Act, against any and all loss, liability, claim, damage and expense
whatsoever described in the indemnity contained in Section 4(a) hereof, as
incurred, but only with respect to untrue statements or omissions, or alleged
untrue statements or omissions, made in the Registration Statement (or any
amendment or supplement thereto) or any Prospectus (or any amendment or
supplement thereto) in reliance upon and in conformity with written information
furnished to the Company by or on behalf of such selling Holder with respect to
such Holder expressly for use in the Registration Statement (or any supplement
thereto), or any such Prospectus (or any amendment thereto); provided, however,
that, in the case of the Shelf Registration Statement, no such Holder shall be
liable for any claims hereunder in excess of the amount of net proceeds received
by such Holder from the sale of Transfer Restricted Notes pursuant to the Shelf
Registration Statement; provided, further, however, that for purposes of Section
4(a)(iii), such counsel shall (subject to Section 4(c) hereof) be chosen by the
Company.

               (c) Each indemnified party shall give notice as promptly as
reasonably practicable to each indemnifying party of any action commenced
against it in respect of which indemnity may be sought hereunder, but failure to
so notify an indemnifying party shall not relieve such indemnifying party from


<PAGE>   28
                                      -27-


any liability hereunder to the extent it is not materially prejudiced as a
result thereof and in any event shall not relieve it from any liability which it
may have otherwise than on account of this indemnity agreement. In the case of
parties indemnified pursuant to Section 4(a) above, one counsel to all the
indemnified parties shall be selected by Salomon, and, in the case of parties
indemnified pursuant to Section 4(b) above, counsel to all the indemnified
parties shall be selected by the Company. An indemnifying party may participate
at its own expense in the defense of any such action; provided, however, that
counsel to the indemnifying party shall not (except with the consent of the
indemnified party) also be counsel to the indemnified party. Notwithstanding the
foregoing, if it so elects within a reasonable time after receipt of such
notice, an indemnifying party, jointly with any other indemnifying parties
receiving such notice, may assume the defense of such action with counsel chosen
by it and approved by the indemnified parties defendant in such action (which
approval shall not be unreasonably withheld), unless such indemnified parties
reasonably object to such assumption on the ground that there may be legal
defenses available to them which are different from or in addition to those
available to such indemnifying party. If an indemnifying party assumes the
defense of such action, the indemnifying parties shall not be liable for any
fees and expenses of counsel for the indemnified parties incurred thereafter in
connection with such action. In no event shall the indemnifying parties be
liable for fees and expenses of more than one counsel (in addition to any local
counsel) separate from their own counsel for all indemnified parties in
connection with any one action or separate but similar or related actions
arising out of the same general allegations or circumstances. No indemnifying
party shall, without the prior written consent of the indemnified parties,
settle or compromise or consent to the entry of any judgment with respect to any
litigation, or any investigation or proceeding by any governmental agency or
body, commenced or threatened, or any claim whatsoever in respect of which
indemnification or contribution could be sought under this Section 4 (whether or
not the indemnified parties are actual or potential parties thereto), unless
such settlement, compromise or consent (i) includes a full and unconditional
release of each indemnified party from all liability arising out of such
litigation, investigation, proceeding or claim and the offer and sale of any
Notes and (ii) does not include a statement as to or an admission of fault,
culpability or a failure to act by or on behalf of any indemnified party.


<PAGE>   29
                                      -28-


               (d) If at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for reasonable fees and
expenses of counsel pursuant to Section 4(a)(iii) above, then such indemnifying
party agrees that it shall be liable for any settlement of the nature
contemplated by Section 4(a)(ii) effected without its written consent if (i)
such settlement is entered into more than 45 days after receipt by such
indemnifying party of the aforesaid request, (ii) such indemnifying party shall
have received notice of the terms of such settlement at least 30 days prior to
such settlement being entered into and (iii) such indemnifying party shall not
have reimbursed such indemnified party in accordance with such request prior to
the date of such settlement.

               (e) In order to provide for just and equitable contribution in
circumstances under which any of the indemnity provisions set forth in this
Section 4 is for any reason held to be unavailable to the indemnified parties
although applicable in accordance with its terms, the Company, the Initial
Purchasers and the Holders, as applicable, shall contribute to the aggregate
losses, liabilities, claims, damages and expenses of the nature contemplated by
such indemnity agreement incurred by the Company, the Initial Purchasers and the
Holders; provided, however, that 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 that was not guilty of such
fraudulent misrepresentation. As between the Company and the Initial Purchasers
and the Holders, such parties shall contribute to such aggregate losses,
liabilities, claims, damages and expenses of the nature contemplated by such
indemnity agreement in such proportion as shall be appropriate to reflect the
relative fault of the Company on the one hand and of the Holder of Transfer
Restricted Notes, the Participating Broker-Dealer or Initial Purchaser, as the
case may be, on the other hand in connection with the statements or omissions
which resulted in such losses, liabilities, claims, damages or expenses, as well
as any other relevant equitable considerations.

               The relative fault of the Company on the one hand and the Holder
of Transfer Restricted Notes, the Participating Broker-Dealer or the Initial
Purchasers, as the case may be, 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


<PAGE>   30
                                      -29-


fact relates to information supplied by the Company, or by the Holder of
Transfer Restricted Notes, the Participating Broker-Dealer or the Initial
Purchasers, as the case may be, and the parties' relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or
omission.

               The Company and the Holders of the Transfer Restricted Notes and
the Initial Purchasers agree that it would not be just and equitable if
contribution pursuant to this Section 4 were determined by pro rata allocation
or by any other method of allocation which does not take account of the
equitable considerations referred to above in this Section 4.

               For purposes of this Section 4, each affiliate of any Person, if
any, who controls a Holder of Transfer Restricted Notes, an Initial Purchaser or
a Participating Broker-Dealer within the meaning of Section 15 of the Securities
Act or Section 20 of the Exchange Act shall have the same rights to contribution
as such other Person, and each director of the Company, each affiliate of the
Company, each executive officer of the Company who signed the Registration
Statement, and each Person, if any, who controls the Company within the meaning
of Section 15 of the Securities Act or Section 20 of the Exchange Act shall have
the same rights to contribution as the Company.

               5. [Intentionally Omitted]

               6. [Intentionally Omitted]

               7. Miscellaneous.

               (a) Rule 144 and Rule 144A. The Company shall provide to each
Holder such reports as are required under Section 10.23 of the Indenture and,
upon the request of any Holder of Transfer Restricted Notes (a) make publicly
available such information as is necessary to permit sales pursuant to Rule 144
under the Securities Act, (b) deliver such information to a prospective
purchaser as is necessary to permit sales pursuant to Rule 144A under the
Securities Act and it will take such further action as any Holder of Transfer
Restricted Notes may reasonably request, and (c) take such further action, if
any, that is reasonable in the circumstances, in each case, to the extent
required from time to time to enable such Holder to sell its Transfer Restricted
Notes without registration under the Securities Act within the limitation of the
exemptions provided


<PAGE>   31
                                      -30-


by (i) Rule 144 under the Securities Act, as such rule may be amended from time
to time, (ii) Rule 144A under the Securities Act, as such rule may be amended
from time to time, or (iii) any similar rules or regulations hereafter adopted
by the SEC. Upon the reasonable request of any Holder of Transfer Restricted
Notes, the Company will deliver to such Holder a written statement as to whether
they have complied with such requirements.

               (b) No Inconsistent Agreements. The rights granted to the Holders
hereunder do not, and will not for the term of this Agreement in any way
conflict with and are not, and will not during the term of this Agreement be
inconsistent with the rights granted to the holders of the Company's other
issued and outstanding securities under any other agreements entered into by the
Company.

               (c) Amendments and Waivers. The provisions of this Agreement,
including provisions of this sentence, may not be amended, modified or
supplemented, and waivers or consents to departures from the provisions hereof
may not be given, otherwise than with the prior written consent of the Company
and the Majority Holders; provided, however, that no amendment, modification, or
supplement or waiver or consent to the departure with respect to the provisions
of Section 4 hereof shall be effective as against any Holder of Transfer
Restricted Notes or the Company unless consented to in writing by such Holder of
Transfer Restricted Notes or the Company, as the case may be.

               (d) Notices. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, registered
first-class mail, telex, telecopier, or any courier guaranteeing overnight
delivery (i) if to a Holder, at the most current address given by such Holder to
the Company by means of a notice given in accordance with the provisions of this
Section 7(d), which address initially is, with respect to the Initial
Purchasers, the address set forth in the Purchase Agreement; and (ii) if to the
Company, initially at the Company's address set forth in the Purchase Agreement
and thereafter at such other address, notice of which is given in accordance
with the provisions of this Section 7(d).

               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


<PAGE>   32
                                      -31-


in the mail, postage prepaid, if mailed; when answered back, if telexed; when
receipt is 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.

               (e) Successors and Assigns. This Agreement shall inure to the
benefit of and be binding upon the successors, assigns and transferees of the
Initial Purchasers, including, without limitation and without the need for an
express assignment, subsequent Holders; provided, however, that nothing herein
shall be deemed to permit any assignment, transfer or other disposition of
Transfer Restricted Notes in violation of the terms of the Purchase Agreement or
the Indenture. If any transferee of any Holder shall acquire Transfer Restricted
Notes, in any manner, whether by operation of law or otherwise, such Transfer
Restricted Notes shall be held subject to all of the terms of this Agreement,
and by taking and holding such Transfer Restricted Notes, 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 and such Person shall be entitled to
receive the benefits hereof.

               (f) Third Party Beneficiary. Each of the Initial Purchasers and
each Holder shall be a third party beneficiary of the agreements made hereunder
between the Company, on the one hand, and the Initial Purchasers, on the other
hand, and shall have the right to enforce such agreements directly to the extent
it deems such enforcement necessary or advisable to protect its rights or the
rights of Holders hereunder.

               (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.


<PAGE>   33
                                      -32-


               (i) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT GIVING
EFFECT TO ANY PROVISIONS RELATING TO CONFLICTS OF LAWS. SPECIFIED TIMES OF DAY
REFER TO NEW YORK CITY TIME.

               (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) Notes Held by the Company or any of its Affiliates. Whenever
the consent or approval of Holders of a specified percentage of Transfer
Restricted Notes is required hereunder, Transfer Restricted Notes held by the
Company or any of their affiliates (as such term is defined in Rule 405 under
the Securities Act) shall not be counted in determining whether such consent or
approval was given by the Holders of such required percentage.

                            [Signature Page Follows]


<PAGE>   34


                                       S-1



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

                                        VERIO INC.


                                        By:
                                           -------------------------------------
                                            Name:
                                            Title:


Confirmed and accepted as of
     the date first above written:

SALOMON SMITH BARNEY INC.
DONALDSON, LUFKIN & JENRETTE
  SECURITIES CORPORATION
MORGAN STANLEY & CO. INCORPORATED


By: SALOMON SMITH BARNEY INC.



By:
   ----------------------------------
    Name:
    Title:


<PAGE>   35


                                                                       EXHIBIT A


                           Form of Opinion of Counsel


               1. Each of the Exchange Offer Registration Statement and the
Prospectus (other than the financial statements, notes or schedules thereto and
other financial and statistical information and supplemental schedules included
or referred to therein or omitted therefrom and the Form T-1, as to which such
counsel need express no opinion), complies as to form in all material respects
with the applicable requirements of the Securities Act and the applicable rules
and regulations promulgated under the Securities Act.

               2. In the course of such counsel's review and discussion of the
contents of the Exchange Offer Registration Statement and the Prospectus with
certain officers and other representatives of the Company and representatives of
the independent certified public accountants of the Company, but without
independent check or verification or responsibility for the accuracy,
completeness or fairness of the statements contained therein, on the basis of
the foregoing (relying as to materiality to a large extent upon representations
and opinions of officers and other representatives of the Company), no facts
have come to such counsel's attention which cause such counsel to believe that
the Exchange Offer Registration Statement (other than the financial statements,
notes and schedules thereto and other financial and statistical information
contained or referred to therein and the Form T-1, as to which such counsel need
express no belief), at the time the Exchange Offer Registration Statement became
effective and at the time of the 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 contained
therein not misleading, or that the Prospectus (other than the financial
statements, notes and schedules thereto and other financial and statistical
information contained or referred to therein, as to which such counsel need
express no belief) contains any untrue statement of a material fact or omits to
state a material fact necessary to make the statements contained therein, in the
light of the circumstances under which they were made, not misleading.