Document:

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                                                                     EXHIBIT 4.2

                          REGISTRATION RIGHTS AGREEMENT

                                                                December 1, 1999

To the several persons named
   at the foot hereof

Dear Sirs:

                  This will confirm that in consideration of (a) the purchase by
the persons and entities listed in Schedule I of the Recapitalization Agreement,
dated as of September 29, 1999 (as amended, the "Recapitalization Agreement")
among Protocol Holdings, Inc., a Delaware corporation (the "Company"), and the
other parties listed in Schedules I and II thereto (such persons and entities
being hereinafter collectively called the "New Investors"), on the date hereof,
of an aggregate 10,693,634 shares of Series B Convertible Preferred Stock, $.001
par value ("Series B Preferred Stock"), of the Company, and as an inducement to
the New Investors to consummate the transactions contemplated by the
Recapitalization Agreement; (b) the purchase on Subsequent Closing Dates (as
defined in the Recapitalization Agreement) by the New Investors of up to an
aggregate 3,960,606 shares of Series B Preferred Stock and (c) the entry by the
Original Stockholders (as defined in the Recapitalization Agreement) into (x)
the Recapitalization Agreement and (y) the Stockholders Agreement, dated as of
the date hereof (the "Stockholders Agreement"), among the Company, the New
Investors and the Original Stockholders, and as an inducement to them to
consummate the transactions contemplated by the Recapitalization Agreement and
the Stockholders Agreement, the Company hereby covenants and agrees with each of
you, and with each subsequent holder of Restricted Stock (as such term is
defined herein), and with each holder of Original Stockholders Stock (as defined
herein), as follows:

                  1. Certain Definitions. As used herein, the following terms
shall have the following respective meanings:

                  "Commission" shall mean the Securities and Exchange
         Commission, or any other federal agency at the time administering the
         Securities Act.

                  "Common Stock" shall mean shares of the Common Stock of the
         Company, as constituted as of the date of this Agreement, subject to
         adjustment pursuant to the provisions of Section 10 hereof.
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                  "Conversion Shares" shall mean the shares of Common Stock
         issued upon conversion of the Series B Preferred Stock.

                  "Exchange Act" shall mean the Securities Exchange Act of 1934
         or any similar federal statute, and the rules and regulations of the
         Commission thereunder, all as the same shall be in effect at the time.

                  "Original Stockholders Stock" shall mean (i) the shares of
         Common Stock and Series A Preferred Stock owned by the Original
         Stockholders on the date of this Agreement after giving effect to the
         Initial Closing under the Recapitalization Agreement, including the
         shares of Common Stock issuable upon conversion of the Series A
         Preferred Stock and (ii) up to 100,000 shares of Common Stock purchased
         by the Original Stockholders pursuant to the terms of (x) the Asset
         Purchase Agreement dated as of November 2, 1998 (the "Anserphone
         Agreement") among the Company, Anserphone of New Orleans, Inc.,
         Anserphone, Inc. and Charles F. Read, Jr. and C. Baldwin Read and (y)
         the Assumption Agreement dated as of the date hereof among the Company
         and the Original Stockholders.

                  "Registration Expenses" shall mean the expenses so described
         in Section 8 hereof.

                  "Restricted Stock" shall mean any securities of the Company,
         the certificates for which are required to bear the legend set forth in
         Section 2 hereof, except such term shall not include Original
         Stockholders Stock.

                  "Securities Act" shall mean the Securities Act of 1933 or any
         similar federal statute, and the rules and regulations of the
         Commission thereunder, all as the same shall be in effect at the time.

                  "Selling Expenses" shall mean the expenses so described in
         Section 8 hereof.

                  "Series A Preferred Stock" shall mean the shares of Series A
         Preferred Stock, $.001 par value, as constituted as of the date of this
         Agreement after giving effect to the Initial Closing under the
         Recapitalization Agreement.

                  2. Restrictive Legend. Each certificate representing the
Series B Preferred Stock, the Original Stockholders Stock, and the Conversion
Shares upon conversion of the Series B Preferred Stock, and each certificate
issued upon exchange or transfer of the Common Stock, the Series B Preferred
Stock and the Conversion Shares,

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as the case may be, other than in a public sale or as otherwise permitted by the
last paragraph of paragraph 3 hereof shall be stamped or otherwise imprinted
with a legend substantially in the following form:

         "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
         REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE
         SECURITIES LAWS. NEITHER THE SECURITIES EVIDENCED HEREBY, NOR ANY
         INTEREST THEREIN, MAY BE OFFERED, SOLD, TRANSFERRED OR OTHERWISE
         DISPOSED OF UNLESS EITHER (i) THERE IS AN EFFECTIVE REGISTRATION
         STATEMENT UNDER SAID ACT AND LAWS RELATING THERETO OR (ii) THE
         CORPORATION HAS RECEIVED AN OPINION OF COUNSEL, REASONABLY SATISFACTORY
         IN FORM AND SUBSTANCE TO THE CORPORATION, STATING THAT SUCH
         REGISTRATION IS NOT REQUIRED."

                  3. Notice of Proposed Transfer. Prior to any proposed transfer
of any Restricted Stock or Original Stockholders Stock, as the case may be,
(other than under the circumstances described in Section 4, 5, or 6 hereof), the
holder thereof shall give written notice to the Company of its intention to
effect such transfer. Each such notice shall describe the manner of the proposed
transfer and, if requested by the Company, shall be accompanied by an opinion of
counsel reasonably satisfactory to the Company to the effect that the proposed
transfer of the Restricted Stock or Original Stockholders Stock, as the case may
be, may be effected without registration under the Securities Act, whereupon the
holder of such Restricted Stock or Original Stockholders Stock, as the case may
be, shall be entitled to transfer such Restricted Stock or Original Stockholders
Stock, as the case may be, in accordance with the terms of its notice but
subject always to the terms of the Stockholders Agreement; provided, however,
that no such opinion or other documentation shall be required if such notice
shall cover a distribution by any New Investor that is a partnership or a
limited liability company to its partners or members. Each certificate for
Restricted Stock or Original Stockholders Stock, as the case may be, transferred
as above provided shall bear a legend substantially as set forth in Section 2,
unless (i) such transfer is in accordance with the provisions of Rule 144 (or
any other rule permitting public sale without registration under the Securities
Act) or (ii) the opinion of counsel referred to above is to the further effect
that the transferee and any subsequent transferee (other than an affiliate of
the Company) would be entitled to transfer such securities in a public sale
without registration under the Securities Act.

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                  The foregoing restrictions on transferability of Restricted
Stock and Original Stockholders Stock shall terminate as to any particular
shares of Restricted Stock or Original Stockholders Stock when such shares shall
have been effectively registered under the Securities Act and sold or otherwise
disposed of in accordance with the intended method of disposition by the seller
or sellers thereof set forth in the registration statement concerning such
shares. Whenever a holder of Restricted Stock or Original Stockholders Stock is
able to demonstrate to the Company (and its counsel) that the provisions of Rule
144(k) of the Securities Act (or any successor rule) are available to such
holder, such holder of Restricted Stock or Original Stockholders Stock shall be
entitled to receive from the Company, without expense, a new certificate not
bearing the restrictive legend set forth in Section 2.

                  4. Restricted Stock Required Registration. (a) At any time
either (i) the holders of Restricted Stock constituting at least a majority of
the total Restricted Stock outstanding at such time (treating the holders of
Series B Preferred Stock as the holders of Conversion Shares for such purpose)
or (ii) either BCI Growth V, L.P. or Willis Stein & Partners II, L.P. may
request the Company to register under the Securities Act all or any portion of
the Restricted Stock held by such requesting holder or holders for sale in the
manner specified in such notice; provided, however, that with respect to the
Series B Preferred Stock the only securities which the Company shall be required
to register pursuant hereto shall be Conversion Shares.

                  (b) Promptly following receipt of any notice under this
Section 4, the Company shall promptly notify any holders of Restricted Stock
from whom notice has not been received and Original Stockholders Stock, and
shall use its best efforts to register under the Securities Act, for public sale
in accordance with the method of disposition specified in such notice from
requesting holders, the number of shares of Restricted Stock specified in such
notice and, as applicable, in any notices received from other holders and
holders of Original Stockholders Stock within 20 days after their receipt of
such notice from the Company; provided, however, that if the proposed method of
disposition specified by the requesting holders shall be an underwritten public
offering, the number of shares of Restricted Stock or Original Stockholders
Stock or both, as the case may be, to be included in such an offering may be
reduced (first, pro rata among the requesting holders of Original Stockholders
Stock based on the number of shares of Original Stockholders Stock requested to
be registered and, second, pro rata among the requesting holders based on the
number of shares of Restricted Stock so requested to be registered) if and to
the extent that the managing underwriter shall be of the opinion that such
inclusion would adversely affect the marketing of the Restricted Stock and the
Original Stockholders Stock, as the case may be, to be sold. If such method of
disposition shall be an underwritten public offering, the Company may designate
the managing underwriter of

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such offering, subject to the approval of the selling holders of a majority of
the Restricted Stock (treating the holders of Series B Preferred Stock as the
holders of Conversion Shares for such purpose) included in the offering, which
approval shall not be unreasonably withheld. The Company shall be obligated to
register Restricted Stock and Original Stockholders Stock pursuant to this
Section 4 on two occasions only. Notwithstanding anything to the contrary
contained herein, the obligation of the Company under this Section 4 shall be
deemed satisfied only when a registration statement covering all shares of
Restricted Stock specified in notices received as aforesaid (or such reduced
number of shares as contemplated above), for sale in accordance with the method
of disposition specified by the requesting holder, shall have become effective
and, if such method of disposition is a firm commitment underwritten public
offering, all such shares shall have been sold pursuant thereto.

                  (c) The Company shall be entitled to include in any
registration statement referred to in this Section 4, for sale in accordance
with the method of disposition specified by the requesting holders, shares of
Common Stock to be sold by the Company for its own account, except as and to the
extent that, in the opinion of the managing underwriter (if such method of
disposition shall be an underwritten public offering), such inclusion would
adversely affect the marketing of the Restricted Stock and Original Stockholders
Stock to be sold. Except as provided in this paragraph (c), the Company will not
effect any other registration of its Common Stock, whether for its own account
or that of other holders, from the date of receipt of a notice from requesting
holders pursuant to this Section 4 until the completion of the period of
distribution of the registration contemplated thereby, other than registrations
of Common Stock on Form S-4 or Form S-8 (or other applicable forms) issuable
pursuant to employee benefit plans of the Company, or registrations pursuant to
which notice was previously received pursuant to Section 5 hereof.

                  (d) Notwithstanding anything to the contrary contained in this
Agreement, the Board will be entitled to postpone the filing period (or suspend
the effectiveness) of any registration of the Restricted Stock or Original
Stockholders Stock, as the case may be, pursuant to this Section 4 for a
reasonable period of time not in excess of 90 calendar days and no more than one
such period in any period of 360 days, if the Board of Directors of the Company
(the "Board") determines, in its reasonable business judgment, that such
registration and offering could materially interfere with bona fide financing
plans of the Company or would require disclosure of information, the premature
disclosure of which could, in the Board's reasonable business judgment,
materially and adversely affect the Company. If the Board postpones the filing
of a registration statement pursuant to this Section 4, it will promptly notify,
in writing, the

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holders of Restricted Stock and Original Stockholders Stock that requested such
registration when the events or circumstances permitting such postponement have
ended.

                  5. Form S-3 Registration. (a) If the Company shall receive
from any holder or holders of more than 500,000 shares of Restricted Stock
and/or Original Stockholders Stock a written request or requests that the
Company effect a registration on Form S-3 and any related qualification or
compliance with respect to Restricted Stock or Original Stockholders Stock, as
the case may be, owned by such holder or holders, the Company will:

                  (i) promptly give written notice of the proposed registration,
         and any related qualification or compliance, to all other holders of
         Restricted Stock and Original Stockholders Stock; and

                 (ii) as soon as practicable, effect such registration
         (including, without limitation, the execution of an undertaking to file
         post-effective amendments, appropriate qualifications under applicable
         blue sky or other state securities laws and appropriate compliance with
         applicable regulations issued under the Securities Act and any other
         government requirements or regulations) as may be so requested and as
         would permit or facilitate the sale and distribution of all or such
         portion of such holder's or holders' Restricted Stock or Original
         Stockholders Stock, as the case may be, as are specified in such
         request, together with all or such portion of the Restricted Stock or
         Original Stockholders Stock of any holder or holders joining in such
         request as are specified in a written request given within thirty (30)
         days after receipt of such written notice from the Company; provided
         that the Company shall not be obligated to effect any such
         registration, qualification or compliance pursuant to this Section 5(a)
         more than once in any 180-day period, or (B) if the Company is not
         entitled to use Form S-3; and provided, further, that the only
         securities which the Company shall be required to register pursuant
         hereto shall be Common Stock. Subject to the foregoing, the Company
         shall file a registration statement covering the Restricted Stock and
         Original Stockholders Stock so requested to be registered as soon as
         practicable after receipt of the request or requests of the holders of
         the Restricted Stock and Original Stockholders Stock, as the case may
         be.

                  (b) Registrations effected pursuant to this Section 5 shall
not be counted as requests for registration effected pursuant to either Section
4.

                  (c) Notwithstanding anything to the contrary contained in this
Agreement, the Board will be entitled to postpone the filing period (or suspend
the effectiveness or use) of any registration statement relating to the
Restricted Stock or the

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Original Stockholders Stock, as the case may be, pursuant to this Section 5 for
a reasonable period of time not in excess of 90 calendar days, if the Board
determines, in its reasonable business judgment, that such registration and
offering could materially interfere with bona fide financing plans of the
Company or would require disclosure of information, the premature disclosure of
which could, in the Board's reasonable business judgment, materially and
adversely affect the Company. If the Board postpones the filing (or suspends the
effectiveness or use) of a registration statement pursuant to this Section 5, it
will promptly notify, in writing, the holders of Restricted Stock or Original
Stockholders Stock, as the case may be, that requested such registration when
the events or circumstances permitting such postponement have ended.

                  6. Incidental Registration. If the Company at any time (other
than pursuant to Section 4 or 5 hereof) proposes to register any of its Common
Stock under the Securities Act for sale to the public, whether for its own
account or for the account of other securityholders or both (except with respect
to registration statements on Form S-4 or S-8 or another form not available for
registering the Restricted Stock or Original Stockholders Stock for sale to the
public), it will give written notice at such time to all holders of Restricted
Stock and Original Stockholders Stock of its intention to do so. Upon the
written request of any such holder, given within 30 days after receipt of any
such notice by the Company, to register any of its Restricted Stock or Original
Stockholders Stock, the Company will use its best efforts to cause the
Restricted Stock or Original Stockholders Stock as to which registration shall
have been so requested, to be included in the securities to be covered by the
registration statement proposed to be filed by the Company, all to the extent
requisite to permit the sale or other disposition by the holder of such
Restricted Stock or Original Stockholders Stock, as the case may be, so
registered; provided that nothing herein shall prevent the Company from
abandoning or delaying such registration at any time; provided, further, that
the only securities which the Company shall be required to register pursuant
hereto shall be Common Stock. The number of shares of Restricted Stock or
Original Stockholders Stock, as the case may be, to be included in such an
underwriting may be reduced, pro rata among the requesting holders of Restricted
Stock and Original Stockholders Stock, if and to the extent that the managing
underwriter shall be of the opinion that such inclusion would adversely affect
the marketing of the securities to be sold by the Company therein; provided,
however, that such number of shares of Restricted Stock or Original Stockholders
Stock, as the case may be, shall not be reduced if any shares are to be included
in such underwriting for the account of any person other than the Company.

                  Notwithstanding anything to the contrary contained in this
Section 6, in the event that there is a firm commitment underwritten public
offering of securities of the Company pursuant to a registration covering
Restricted Stock or Original Stockholders

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Stock or any of the above, as the case may be, and a holder of Restricted Stock
or Original Stockholders Stock, as the case may be, does not sell his Restricted
Stock or Original Stockholders Stock, as the case may be, to the underwriters of
the Company's securities in connection with such offering, such holder, at the
written request of such underwriter, shall refrain from selling such Restricted
Stock or Original Stockholders Stock, as the case may be, so registered pursuant
to this Section 6 during the period of distribution of the Company's securities
by such underwriters and the period in which the underwriting syndicate
participates in the after market; provided, however, that such holder shall, in
any event, be entitled to sell its Restricted Stock or Original Stockholders
Stock, as the case may be, commencing on the 90th day after the effective date
of such registration statement.

                  7. Registration Procedures and Expenses. If and whenever the
Company is required by the provisions of Section 4, 5 or 6 hereof to use its
best efforts to effect the registration of any of the Restricted Stock or
Original Stockholders Stock or both, as the case may be, under the Securities
Act, the Company will, as promptly as possible:

                  (a) prepare (and afford one counsel for the selling holders
         (as designated by a majority in interest of the selling holders)
         reasonable opportunity to review and comment thereon) and file with the
         Commission a registration statement (which, in the case of an
         underwritten public offering pursuant to Section 4 hereof, shall be on
         Form S-1 or another form of general applicability satisfactory to the
         managing underwriter selected as therein provided) with respect to such
         securities and use its best efforts to cause such registration
         statement to become and remain effective for the period of the
         distribution contemplated thereby (determined as hereinafter provided);

                  (b) prepare (and afford the selected counsel for the selling
         holders reasonable opportunity to review and comment thereon) and file
         with the Commission such amendments and supplements to such
         registration statement and the prospectus used in connection therewith
         as may be necessary to keep such registration statement effective for
         the period specified in paragraph (a) above and as comply with the
         provisions of the Securities Act with respect to the disposition of all
         Restricted Stock or Original Stockholders Stock or any of the above, as
         the case may be, covered by such registration statement in accordance
         with the sellers' intended method of disposition set forth in such
         registration statement for such period;

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                  (c) furnish to each seller and to each underwriter such number
         of copies of the registration statement and the prospectus included
         therein (including each preliminary prospectus) as such persons may
         reasonably request in order to facilitate the public sale or other
         disposition of the Restricted Stock or Original Stockholders Stock or
         any of the above, as the case may be, covered by such registration
         statement;

                  (d) register or qualify the Restricted Stock or Original
         Stockholders Stock or any of the above, as the case may be, covered by
         such registration statement under the securities or blue sky laws of
         such jurisdictions as the sellers of Restricted Stock or Original
         Stockholders Stock or any of the above, as the case may be, or, in the
         case of an underwritten public offering, the managing underwriter,
         shall reasonably request;

                  (e) promptly notify each seller under such registration
         statement and each underwriter, at any time when a prospectus relating
         thereto is required to be delivered under the Securities Act, of the
         happening of any event as a result of which the prospectus contained in
         such registration statement, as then in effect, includes an untrue
         statement of a material fact or omits to state any material fact
         required to be stated therein or necessary to make the statements
         therein not misleading in the light of the circumstances then existing;

                  (f) if the offering is underwritten, to furnish, at the
         request of any seller, on the date that Restricted Stock or Original
         Stockholders Stock or any of the above, as the case may be, is
         delivered to the underwriters for sale pursuant to such registration:
         (i) an opinion dated such date of counsel representing the Company for
         the purposes of such registration, addressed to the underwriters and to
         such seller, stating that such registration statement has become
         effective under the Securities Act and that (A) to the best knowledge
         of such counsel, no stop order suspending the effectiveness thereof has
         been issued and no proceedings for that purpose have been instituted or
         are pending or contemplated under the Securities Act, (B) the
         registration statement, the related prospectus, and each amendment or
         supplement thereof, comply as to form in all material respects with the
         requirements of the Securities Act and the applicable rules and
         regulations of the Commission thereunder (except that such counsel need
         express no opinion as to financial statements, the notes thereto, and
         the financial schedules and other financial and statistical data
         contained therein) and (C) to such other effects as may reasonably be
         requested by counsel for the underwriters or by such seller or its
         counsel, and (ii) a letter dated such date from the independent public
         accountants retained by the Company, addressed to the underwriters,
         stating that they are independent public accountants within the meaning
         of the Securities Act

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         and that, in the opinion of such accountants, the financial statements
         of the Company included in the registration statement or the
         prospectus, or any amendment or supplement thereof, comply as to form
         in all material respects with the applicable accounting requirements of
         the Securities Act, and such letter shall additionally cover such other
         financial matters (including information as to the period ending no
         more than five business days prior to the date of such letter) with
         respect to the registration in respect of which such letter is being
         given as such underwriters or seller may reasonably request; and

                  (g) make available for inspection by each seller, any
         underwriter participating in any distribution pursuant to such
         registration statement, and any attorney, accountant or other agent
         retained by such seller or underwriter, all financial and other
         records, pertinent corporate documents and properties of the Company,
         and cause the Company's officers, directors and employees to supply all
         information reasonably requested by any such seller, underwriter,
         attorney, accountant or agent in connection with such registration
         statement and permit such seller, attorney, accountant or agent to
         participate in the preparation of such registration statement.

For purposes of paragraphs (a) and (b) above and of Section 4(c) hereof, the
period of distribution of Restricted Stock or Original Stockholders Stock or any
of the above, as the case may be, in a firm commitment underwritten public
offering shall be deemed to extend until each underwriter has completed the
distribution of all securities purchased by it, and the period of distribution
of Restricted Stock or Original Stockholders Stock or any of the above, as the
case may be, in any other registration shall be deemed to extend until the
earlier of the sale of all Restricted Stock or Original Stockholders Stock or
any of the above, as the case may be, covered thereby or six months after the
effective date thereof.

                  In connection with each registration hereunder, the selling
holders of Restricted Stock and Original Stockholders Stock, if applicable, will
furnish to the Company in writing such information with respect to themselves
and the proposed distribution by them as shall be reasonably necessary in order
to assure compliance with federal and applicable state securities laws.

                  In connection with each registration pursuant to Sections 4, 5
and 6 hereof covering an underwritten public offering, the Company and any
selling holder of Restricted Stock or Original Stockholders stock or any of the
above, as the case may be, agree to enter into a written agreement with the
managing underwriter selected in the manner herein provided in such form and
containing such provisions as are customary in the securities business for such
an arrangement between major underwriters and

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companies of the Company's size and investment stature; provided, however, that
such agreement shall not contain any such provision applicable to the Company or
such selling holders which is inconsistent with the provisions hereof and
provided, further, however, that the time and place of the closing under said
agreement shall be as mutually agreed upon among the Company, such managing
underwriter and the selling holders of Restricted Stock and Original
Stockholders Stock, if applicable.

                  8. Expenses. All expenses incurred by the Company in complying
with Sections 4, 5 and 6 hereof, including, without limitation, all registration
and filing fees, printing expenses, fees and disbursements of counsel and
independent public accountants for the Company, fees of the National Association
of Securities Dealers, Inc., transfer taxes, fees of transfer agents and
registrars and fees and expenses of one counsel for the sellers of Restricted
Stock or Original Stockholders Stock, as the case may be, but excluding any
Selling Expenses, are herein called "Registration Expenses". All underwriting
discounts and selling commissions applicable to the sale of Restricted Stock or
Original Stockholders Stock or any of the above, as the case may be, are herein
called "Selling Expenses".

                  The Company will pay all Registration Expenses in connection
with each registration statement filed pursuant to Section 4, 5 or 6 hereof. All
Selling Expenses in connection with any registration statement filed pursuant to
Section 4, 5 or 6 hereof shall be borne by the participating sellers in
proportion to the number of shares sold by each, or by such persons other than
the Company (except to the extent the Company shall be a seller) as they may
agree.

                  9. Indemnification. In the event of a registration of any of
the Restricted Stock or Original Stockholders Stock or any of the above, as the
case may be, under the Securities Act pursuant to Section 4, 5 or 6 hereof, the
Company will indemnify and hold harmless each seller of such Restricted Stock or
Original Stockholders Stock, as the case may be, thereunder and each underwriter
of Restricted Stock or Original Stockholders Stock or any of the above, as the
case may be, thereunder and each other person, if any, who controls such seller
or underwriter within the meaning of the Securities Act, against any losses,
claims, damages or liabilities, joint or several, to which such seller or
underwriter or controlling person may become subject under the Securities Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect thereof) arise out of or are based upon any untrue statement or alleged
untrue statement of any material fact contained in any registration statement
under which such Restricted Stock or Original Stockholders Stock or any of the
above, as the case may be, was registered under the Securities Act pursuant to
Section 4, 5 or 6, any preliminary prospectus or final prospectus contained
therein, or any amendment or supplement thereof, or arise out of or are based
upon the omission or alleged omission to state therein

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a material fact required to be stated therein or necessary to make the
statements therein not misleading, and will reimburse each such seller, each
such underwriter and each such controlling person for any legal or other
expenses reasonably incurred by them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that the Company will not be liable in any such case if and to the extent that
any such loss, claim, damage or liability arises out of or is based upon an
untrue statement or alleged untrue statement or omission or alleged omission so
made in conformity with information furnished by such seller, such underwriter
or such controlling person in writing specifically for use in such registration
statement or prospectus.

                  In the event of a registration of any of the Restricted Stock
or Original Stockholders Stock or any of the above, as the case may be, under
the Securities Act pursuant to Section 4, 5 or 6 hereof, each seller of such
Restricted Stock or Original Stockholders Stock, as the case may be, thereunder,
severally and not jointly, will indemnify and hold harmless the Company and each
person, if any, who controls the Company within the meaning of the Securities
Act, each officer of the Company who signs the registration statement, each
director of the Company, each underwriter and each person who controls any
underwriter within the meaning of the Securities Act, against all losses,
claims, damages or liabilities, joint or several, to which the Company or such
officer or director or underwriter or controlling person may become subject
under the Securities Act or otherwise, insofar as such losses, claims, damages
or liabilities (or actions in respect thereof) arise out of or are based upon
any untrue statement or alleged untrue statement of any material fact contained
in the registration statement under which such Restricted Stock or Original
Stockholder Stock or any of the above, as the case may be, was registered under
the Securities Act pursuant to Section 4, 5 or 6, any preliminary prospectus or
final prospectus contained therein, or any amendment or supplement thereof, or
arise out of or are based upon the omission or alleged omission to state therein
a material fact required to be stated therein or necessary to make the
statements therein not misleading, and will reimburse the Company and each such
officer, director, underwriter and controlling person for any legal or other
expenses reasonably incurred by them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that such seller will be liable hereunder in any such case if and only to the
extent that any such loss, claim, damage or liability arises out of or is based
upon an untrue statement or alleged untrue statement or omission or alleged
omission made in reliance upon and in conformity with information pertaining to
such seller, as such, furnished in writing to the Company by such seller
specifically for use in such registration statement or prospectus; provided,
further, however, that the liability of each seller hereunder shall be limited
to the proportion of any such loss, claim, damage, liability or expense which is
equal to the proportion that the public offering price of

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shares sold by such seller under such registration statement bears to the total
public offering price of all securities sold thereunder, but not to exceed the
proceeds (net of underwriting discounts and commissions) received by such seller
from the sale of Restricted Stock or Original Stockholders Stock, as the case
may be, covered by such registration statement.

                  Promptly after receipt by an indemnified party hereunder of
notice of the commencement of any action, such indemnified party shall, if a
claim in respect thereof is to be made against the indemnifying party hereunder,
notify the indemnifying party in writing thereof, but the omission so to notify
the indemnifying party shall not relieve it from any liability which it may have
to any indemnified party other than under this Section 9. In case any such
action shall be brought against any indemnified party and it shall notify the
indemnifying party of the commencement thereof, the indemnifying party shall be
entitled to participate in and, to the extent it shall wish, to assume and
undertake the defense thereof with counsel satisfactory to such indemnified
party, and, after notice from the indemnifying party to such indemnified party
of its election so to assume and undertake the defense thereof, the indemnifying
party shall not be liable to such indemnified party under this Section 9 for any
legal expenses subsequently incurred by such indemnified party in connection
with the defense thereof other than reasonable costs of investigation and of
liaison with counsel so selected; provided, however, that, if the defendants in
any such action include both the indemnified party and the indemnifying party
and the indemnified party shall have reasonably concluded that there may be
reasonable defenses available to it which are different from or additional to
those available to the indemnifying party, or if the interests of the
indemnified party reasonably may be deemed to conflict with the interests of the
indemnifying party, the indemnified party shall have the right to select a
separate counsel and to assume such legal defenses and otherwise to participate
in the defense of such action, with the expenses and fees of such separate
counsel and other expenses related to such participation to be reimbursed by the
indemnifying party as incurred.

                  Notwithstanding the foregoing, any indemnified party shall
have the right to retain its own counsel in any such action, but the fees and
disbursements of such counsel shall be at the expense of such indemnified party
unless (i) the indemnifying party shall have failed to retain counsel for the
indemnified person as aforesaid or (ii) the indemnifying party and such
indemnified party shall have mutually agreed to the retention of such counsel.
It is understood that the indemnifying party shall not, in connection with any
action or related actions in the same jurisdiction, be liable for the fees and
disbursements of more than one separate firm qualified in such jurisdiction to
act as counsel for the indemnified party. The indemnifying party shall not be
liable for any settlement of any proceeding effected without its written
consent, but if settled with such

                                       13
<PAGE>   14
consent or if there be a final judgment for the plaintiff, the indemnifying
party agrees to indemnify the indemnified party from and against any loss or
liability by reason of such settlement or judgment.

                  If the indemnification provided for in the first two
paragraphs of this Section 9 is unavailable or insufficient to hold harmless an
indemnified party under such paragraphs in respect of any losses, claims,
damages or liabilities or actions in respect thereof referred to therein, then
each indemnifying party shall in lieu of indemnifying such indemnified party
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages, liabilities or actions in such proportion as
appropriate to reflect the relative fault of the Company, on the one hand, and
the underwriters and the sellers of such Restricted Stock or Original
Stockholders Stock, as the case may be, on the other, in connection with the
statements or omissions which resulted in such losses, claims, damages,
liabilities or actions as well as any other relevant equitable considerations,
including the failure to give any notice under the third paragraph of this
Section 9. The relative fault shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact
relates to information supplied by the Company, on the one hand, or the
underwriters and the sellers of such Restricted Stock or Original Stockholders
Stock, as the case may be, on the other, and to the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission. The Company and each selling holder of Restricted Stock
or Original Stockholders Stock, as the case may be, agree that it would not be
just and equitable if contributions pursuant to this paragraph were determined
by pro rata allocation (even if all of the sellers of such Restricted Stock or
Original Stockholders Stock, as the case may be, were treated as one entity for
such purpose) or by any other method of allocation which did not take account of
the equitable considerations referred to above in this paragraph. The amount
paid or payable by an indemnified party as a result of the losses, claims,
damages, liabilities or action in respect thereof, referred to above in this
paragraph, shall be deemed to include any legal or other expenses reasonably
incurred by such indemnified party in connection with investigating or defending
any such action or claim. Notwithstanding the provisions of this paragraph, the
sellers of such Restricted Stock or Original Stockholders Stock, as the case may
be, shall not be required to contribute any amount in excess of the amount, if
any, by which the total price at which the Common Stock sold by each of them was
offered to the public exceeds the amount of any damages which they would have
otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission. No person guilty of fraudulent misrepresentations (within
the meaning of Section 10(f) of the Securities Act), shall be entitled to
contribution from any person who is not guilty of such fraudulent
misrepresentation.

                                       14
<PAGE>   15
                  The indemnification of underwriters provided for in this
Section 9 shall be on such other terms and conditions as are at the time
customary and reasonably required by such underwriters. In that event the
indemnification of the sellers of Restricted Stock or Original Stockholders
Stock or any of the above, as the case may be, in such underwriting shall at the
sellers' request be modified to conform to such terms and conditions.

                  10. Changes in Common Stock. If, and as often as, there are
any changes in the Common Stock by way of stock split, stock dividend,
combination or reclassification, or through merger, consolidation,
reorganization or recapitalization, or by any other means, appropriate
adjustment shall be made in the provisions hereof, as may be required, so that
the rights and privileges granted hereby shall continue with respect to the
Common Stock as so changed.

                  11. Representations and Warranties of the Company. The Company
represents and warrants to you as follows:

                  (a) The execution, delivery and performance of this Agreement
         by the Company have been duly authorized by all requisite corporate
         action and will not violate any provision of law, any order of any
         court or other agency of government, the Amended and Restated Articles
         of Incorporation or Bylaws of the Company, or any provision of any
         indenture, agreement or other instrument to which it or any of its
         properties or assets is bound, or conflict with, result in a breach of
         or constitute (with due notice or lapse of time or both) a default
         under any such indenture, agreement or other instrument, or result in
         the creation or imposition of any lien, charge or encumbrance of any
         nature whatsoever upon any of the properties or assets of the Company.

                  (b) This Agreement has been duly executed and delivered by the
         Company and constitutes the legal, valid and binding obligation of the
         Company, enforceable in accordance with its terms, subject to
         considerations of public policy in the case of the indemnification
         provisions hereof.

                  12. Rule 144 Reporting. The Company agrees with you as
follows:

                  (a) The Company shall use its best efforts to make and keep
         public information available, as those terms are understood and defined
         in Rule 144 under the Securities Act, at all times from and after the
         date it is first required to do so.

                                       15
<PAGE>   16
                  (b) The Company shall use its best efforts to file with the
         Commission in a timely manner all reports and other documents as the
         Commission may prescribe under Section 13(a) or 15(d) of the Exchange
         Act at any time after the Company has become subject to such reporting
         requirements of the Exchange Act.

                  (c) The Company shall furnish to such holder of Restricted
         Stock forthwith upon request (i) a written statement by the Company as
         to whether it is in compliance with the reporting requirements of Rule
         144 (at any time from and after the date it first becomes subject to
         such reporting requirements, and of the Securities Act and the Exchange
         Act (at any time after it has become subject to such reporting
         requirements), (ii) a copy of the most recent annual or quarterly
         report of the Company filed with the Commission, and (iii) such other
         reports and documents so filed as a holder may reasonably request to
         avail itself of any rule or regulation of the Commission allowing a
         holder of Restricted Stock to sell any such securities without
         registration.

                  13. Miscellaneous. (a) All covenants and agreements contained
in this Agreement by or on behalf of any of the parties hereto shall bind and
inure to the benefit of the respective successors and assigns of the parties
hereto whether so expressed or not. Without limiting the generality of the
foregoing, the registration rights conferred herein on the holders of Restricted
Stock and Original Stockholders Stock shall inure to the benefit of any and all
subsequent holders from time to time of the Restricted Stock and the Original
Stockholders Stock for so long as the certificates representing the Restricted
Stock or the Original Stockholders Stock, as the case may be, shall be required
to bear the legend specified in Section 2 hereof.

                  (b) All notices, requests, consents and other communications
hereunder shall be in writing and shall be mailed by first class registered
mail, postage prepaid, addressed as follows:

                  if to the Company, to it at:

                           Protocol Holdings, Inc.
                           2197 Ringling Blvd.
                           Sarasota, Florida 34237

                           Attention:     President
                           Telecopy:      941-906-1422

                                       16
<PAGE>   17
                  if to any holder of Restricted Stock, to it at its address as
                  set forth in Annex I hereto;

                  if to any holder of Original Stockholders Stock, to it at its
                  address as set forth in Annex I hereto;

                  if to any subsequent holder of Restricted Stock or Original
                  Stockholders Stock to it at such address as may have been
                  furnished to the Company in writing by such holder;

or, in any case, at such other address or addresses as shall have been furnished
in writing to the Company (in the case of a holder of Restricted Stock or
Original Stockholders Stock) or to the holders of Restricted Stock or Original
Stockholders Stock (in the case of the Company).

                  (c) This Agreement and all matters relating to this Agreement,
unless otherwise specified, shall be governed by and construed in accordance
with the internal laws of the State of New York without regard to its conflict
of law rules.

                  (d) This Agreement constitutes the entire agreement of the
parties with respect to the subject matter hereof and may not be modified or
amended except in writing with the consent of at least a majority of the holders
of (i) Restricted Stock (treating the holders of Series B Preferred Stock as the
holder of Conversion Shares for such purpose and (ii) the Original Stockholders
Stock; provided that this Agreement may be amended to grant registration rights
with respect to new securities to be issued by the Company after the date hereof
with the consent of holders of at least a majority of Restricted Stock (treating
the holders of Series B Preferred Stock as the holders of Conversion Shares for
such purpose) and the Original Stockholders Stock; provided, further, however,
that such grants of registration rights shall not affect the relative rights of
the Restricted Stock and the Original Stockholders Stock hereunder with respect
to each other.

                  (e) This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

                                       17
<PAGE>   18
                  Please indicate your acceptance of the foregoing by signing
and returning the enclosed counterpart of this letter, whereupon this letter
(herein sometimes called "this Agreement") shall be a binding agreement between
the Company and each of you.

                                          Very truly yours,

                                          PROTOCOL HOLDINGS, INC.

                                          By: /s/ Raymond P. Wilson
                                             ----------------------------------
                                                 Name:   Raymond P. Wilson
                                                 Title:  Chief Financial Officer

AGREED TO AND ACCEPTED
as of the date first
above written.

WILLIS STEIN & PARTNERS II, L.P.

By: /s/ Robert C. Froetscher
   ----------------------------------
       Name:  Robert C. Froetscher
       Title: Managing Director

WILLIS STEIN & PARTNERS DUTCH, L.P.

By: /s/ Robert C. Froetscher
   ----------------------------------
       Name:  Robert C. Froetscher
       Title: Managing Director
<PAGE>   19
BCI GROWTH IV, L.P.
By Glenpointe Associates, LLP,
     General Partner
By Glenpointe Associates, LLC
     General Partner

By: /s/ Peter O. Wilde
   -----------------------------------
       Name:  Peter O. Wilde
       Title: Managing Member

BCI GROWTH V, L.P.
By Glenpointe Associates V, LLC
     General Partner

By: /s/ Peter O. Wilde
   -----------------------------------
       Name:  Peter O. Wilde
       Title: Managing Member

BCI INVESTORS, L.L.C.

By: /s/ Peter O. Wilde
   -----------------------------------
       Name:  Peter O. Wilde
       Title: Managing Member

ING (U.S.) CAPITAL LLC

By: /s/ Bradford Pollard
   -----------------------------------
       Name:  Bradford Pollard
       Title: Vice President

<PAGE>   20
BENEDETTO GARTLAND & COMPANY, INC.

By     /s/ Charles Mobus *
  ---------------------------------------
  Name:
  Title:

        /s/ Kevin N. Blayne *
-----------------------------------------
Kevin N. Blayne

        /s/ Claude Cohen *
-----------------------------------------
Claude Cohen

       /s/ Robert J. Conrads *
-----------------------------------------
Robert J. Conrads

ELIEZER COHEN CANADA CORPORATION

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

        /s/ Robert C. Gust *
-----------------------------------------
Robert C. Gust

       /s/ David Knafo *
-----------------------------------------
David Knafo

                          * Executed pursuant to the Election to Redemption Form
<PAGE>   21
        /s/ Andrew M. Knee *
-----------------------------------------
Andrew M. Knee

       /s/ Richard Kommitt *
-----------------------------------------
Richard Kommit

LA FIDUCIE FAMILLIALE COHEN

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

LA FIDUCIE FAMILLIALE KNAFO

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

       /s/ Jerry D. Lewis *
-----------------------------------------
Jerry D. Lewis

      /s/ Stephen G. McLean *
-----------------------------------------
Stephen G. McLean

      /s/ David Van Derveer *
-----------------------------------------
David Van Derveer

       /s/ Raymond P. Wilson *
-----------------------------------------
Raymond P. Wilson

                          * Executed pursuant to the Election to Redemption Form
<PAGE>   22
        /s/ David Dearborn *
-----------------------------------------
David Dearborn

       /s/ Jeanine El-Khoury *
-----------------------------------------
Jeanine El-Khoury

     /s/ Stephen Kozik *
-----------------------------------------
Stephen Kozik

     /s/ Shane M. Lewis *
-----------------------------------------
Shane M. Lewis

    /s/ Michael Morehouse *
-----------------------------------------
Michael Morehouse

    /s/ Francis Quinn *
-----------------------------------------
Francis Quinn

    /s/ Soeb Rangwala *
-----------------------------------------
Soeb Rangwala

    /s/ Robert R. Roscoe *
-----------------------------------------
Robert R. Roscoe

                          * Executed pursuant to the Election to Redemption Form
<PAGE>   23
    /s/ Ross R. Rosenau *
-----------------------------------------
Ross R. Rosenau

    /s/ Brian Schuvart *
-----------------------------------------
Brian Schuvart

     /s/ Daniel L. Sullivan *
-----------------------------------------
Daniel L. Sullivan

    /s/ Fidele Toghoua *
-----------------------------------------
Fidele Toghoua

   /s/ Richard Trepanier *
-----------------------------------------
Richard Trepanier

DONALD N. MOLITOR, AS TRUSTEE OF
THE AMENDED AND RESTATED DONALD
N. MOLITOR FAMILY TRUST U/A/D 10/15/87

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

                          * Executed pursuant to the Election to Redemption Form
<PAGE>   24
JUDITH M. MOLITOR, AS TRUSTEE OF
THE AMENDED AND RESTATED JUDITH
M. MOLITOR FAMILY TRUST U/A/D 10/15/87

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

     /s/ D. Scott Molitor *
-----------------------------------------
D. Scott Molitor

     /s/ Joseph Post *
-----------------------------------------
Joseph Post

    /s/ C. Baldwin Read *
-----------------------------------------
C. Baldwin Read

    /s/ Charles F. Read *
-----------------------------------------
Charles F. Read

    /s/ Joseph Sarno *
-----------------------------------------
Joseph Sarno

    /s/ Stephanie Smith *
-----------------------------------------
Stephanie Smith

   /s/ John H. and Carol C. Turner *
-----------------------------------------
John H. and Carol C. Turner

                          * Executed pursuant to the Election to Redemption Form<PAGE>   1
                                                                     EXHIBIT 4.3

                             STOCKHOLDERS AGREEMENT

                  STOCKHOLDERS AGREEMENT dated as of December 1, 1999, by and
among Protocol Holdings, Inc., a Delaware corporation (the "Company"), the
several persons named in Schedule I hereto (collectively, the "New Investors"),
and the several persons named in Schedule II hereto (collectively, the "Original
Stockholders"). The New Investors and the Original Stockholders are herein
sometimes referred to collectively as the "Stockholders".

                  WHEREAS, the Company, the New Investors and the Original
Stockholders have entered into a Recapitalization Agreement dated as of
September 29, 1999 (as amended, the "Recapitalization Agreement");

                  WHEREAS, pursuant to the Recapitalization Agreement, on the
Initial Closing Date (as defined therein), (i) the New Investors will purchase
from the Company on the Initial Closing Date (as defined in the Recapitalization
Agreement) an aggregate 10,693,634 shares of Series B Preferred Stock, $.001 par
value (the "Series B Preferred Stock"), of the Company, and (ii) the Company
will purchase from the Original Stockholders up to an aggregate 7,682,685 shares
of capital stock of the Company, all on the terms and subject to the conditions
set forth in the Recapitalization Agreement (capitalized terms used herein and
not otherwise defined have the meanings given to them in the Recapitalization
Agreement);

                  WHEREAS, the Recapitalization Agreement provides that the
Company may issue and deliver to the New Investors up to an additional 3,960,606
shares of Series B Preferred Stock on the terms and conditions set forth
therein;

                  WHEREAS, the Company and each of the Stockholders desire to
make certain arrangements among themselves with respect to the matters set forth
herein;

                  NOW, THEREFORE, in consideration of the premises and of the
mutual covenants and agreements herein contained, the parties hereto hereby
agree as follows:

                  SECTION 1. Voting Agreement. (a) From and after the Initial
Closing Date, at each annual or special shareholders meeting called for the
election of directors, and whenever the shareholders of the Company act by
written consent with respect to the election of directors, each Stockholder
agrees to vote or otherwise give such Stockholder's consent in respect of all
shares of capital stock of the Company (whether now or hereafter acquired) owned
by such Stockholder, and the Company shall take all necessary and desirable
actions within its control, in order to cause:

                  (i) the authorized number of directors on the Board of
         Directors of the Company (the "Board") to be established at seven; and
<PAGE>   2
                  (ii) the election to the Board of two directors (each, a "BCI
         Designee") designated by BCI Growth V, L.P. ("BCI"), which directors
         will initially include Bart Goodwin and Peter Wilde; and

                  (iii) the election to the Board of two directors (each a
         "Willis Stein Designee") designated by Willis Stein & Partners II, L.P.
         ("Willis Stein"), which directors will initially include Avy Stein and
         Bob Froetscher; and

                  (iv) the election of one director who shall be the chief
         executive officer of the Company, which director shall initially be
         Stephen G. McLean; and

                  (v) the election of two directors, each of whom shall be
         either (x) independent with relevant industry experience or (y) an
         executive of the Company, and in each case shall be acceptable to the
         New Investors, one of which directors will initially be Robert Conrads;

         all of which designees shall hold office, subject to their earlier
         registration or removal in accordance with clause (vi) below, the
         Bylaws of the Company and applicable corporate law, until their
         respective successors shall have been elected and shall have qualified,
         provided, however, that Mr. Conrads will hold office until such time as
         Mr. Conrads resigns, is removed for cause by a majority of the
         remaining Directors or is removed with the approval of the chief
         executive officer of the Company;

                  (vi) the removal from the Board (with or without cause) of any
         director upon the written request of the Stockholder that designated
         such director, but only upon such written request; and

                  (vii) upon any vacancy in the Board as a result of any
         individual designated as provided in clause (ii) or (iii) above ceasing
         to be a member of the Board, whether by resignation or otherwise, the
         election to the Board of an individual designated by the Stockholder
         that designated such individual.

                  (b) Each Stockholder agrees to use its reasonable best efforts
to cause its designees to the Board to vote or otherwise give such Director's
consent to the creation and maintenance of:

                  (i) a Compensation Committee of the Board consisting of three
         directors, at least one of whom shall be a BCI Designee and one of whom
         shall be a Willis Stein Designee (which directors will originally be
         Avy Stein (who shall be the Chairman of the Compensation Committee),
         Peter Wilde and Robert Conrads), which Compensation Committee shall
         approve all grants of stock options to employees of the Company, all

                                       2
<PAGE>   3
         increases in compensation of officers of the Company, all annual
         bonuses granted to officers of the Company and all other employee
         benefits (including, without limitation, vacation policy, benefit
         plans, company automobiles and insurance) granted to officers of the
         Company; and

                  (ii) an Audit Committee of the Board of Directors, consisting
         of three directors, at least one of whom shall be a BCI Designee and
         one of whom shall be a Willis Stein Designee (which directors will
         originally be Bart Goodwin (who shall be Chairman of the Audit
         COMMITTEE), Robert Froetscher and Stephen McLean), which Audit
         Committee shall review and approve the financial statements of the
         Company as audited by the Company's independent certified public
         accountants.

                  (c) Each Stockholder covenants and agrees to vote or otherwise
give such Stockholder's consent in respect of all shares of capital stock of the
Company (whether now owned or hereafter acquired) owned by such Stockholder, to
approve the Stock Option Plan of the Company substantially in the form of
Exhibit A hereto (the "Stock Option Plan").

                  (d) The Company will pay all direct out-of-pocket expenses
reasonably incurred by any non-employee director in attending each meeting of
the Board of Directors, or any committee thereof.

                  SECTION 2. Restrictions on Transfer. Until the date a
registration statement covering Common Stock of the Company becomes effective
under the Securities Act of 1933, as amended (the "Securities Act"), each
Original Stockholder hereby agrees that such Original Stockholder shall not
without the express written consent of New Investors holding a majority of the
Common Stock (for the purposes of such calculation treating the Series A
Preferred Stock, $.001 par value (the "Series A Preferred Stock") of the
Company, and the Series B Preferred Stock as the number of shares of Common
Stock into which such Series A Preferred Stock and Series B Preferred Stock, as
the case may be, is convertible) then held by the New Investors at any time sell
or in any other way, directly or indirectly, transfer, assign, distribute or
otherwise dispose of (collectively "Transfer") any shares of capital stock then
owned by such Original Stockholder except by sale in accordance with Section 3,
4 or Section 5 hereof or, in the case of an Original Stockholder who is an
employee or director of the Company, to the Company pursuant to written
agreements between the Company and such employee or director and approved by the
Board of Directors of the Company.

                  Notwithstanding the foregoing, if such Original Stockholder is
a natural person, such Original Stockholder may Transfer shares of Series A
Preferred Stock and Common Stock by will, by the laws of descent and
distribution, and inter vivos, by gift to members of such Original Stockholder's
immediate family or to a trust, the beneficiaries of which are such

                                       3
<PAGE>   4
Original Stockholder and/or members of his immediate family and his or their
descendants or, with or without consideration to any pension or retirement plan
established for his or their benefit or to any other Original Stockholder;
provided that in any such event each such transferee shall be bound by all of
the provisions of this Agreement to the same extent as if such transferee were
the Original Stockholder. Any such transferee may transfer shares received
pursuant to this paragraph to the Original Stockholder that was the transferor
of such shares.

                  SECTION 3. Tag-Along Rights. (a) If any New Investor or group
of New Investors (for purposes of this Section 3, a "Selling New Investor")
proposes to sell, exchange, transfer or in any other manner dispose of shares of
Common Stock, Series A Preferred Stock or Series B Preferred Stock held by such
Selling New Investor (including any transfer of shares by the New Investors that
is being effected by a merger or consolidation of the Company with another
entity), then such Selling New Investor shall give written notice (a "Notice of
Intention to Sell") to the Company setting forth in reasonable detail the terms
and conditions of such proposed transaction. In the event that the terms and/or
conditions set forth in the Notice of Intention are thereafter amended in any
respect, the Selling New Investor shall also give written notice (an "Amended
Notice") of the amended terms and conditions of the proposed transaction to the
Company. Upon its receipt of any Notice of Intention to Sell or any Amended
Notice, the Company shall promptly, but in all events within three (3) business
days of its receipt thereof, forward copies thereof to each of the Original
Stockholders and the New Investors other than the Selling New Investor (the
"Other New Investors"). The Selling New Investor shall provide additional
information with respect to the proposed sale, exchange or transfer as
reasonably requested by the Company, the Other New Investors or the Original
Stockholders.

                  (b) Each Original Stockholder and each Other New Investor
shall have the right, exercisable upon written notice to the Company within 15
days after such Original Stockholder's or Other New Investor's receipt of any
Notice of Intention to Sell, or, if later, within 7 days of such Original
Stockholder's or other New Investor's receipt of the most recent Amended Notice,
to participate in the proposed disposition of shares by the Selling New Investor
to the proposed purchaser on the terms and conditions set forth in such Notice
of Intention to Sell or the most recent Amended Notice, as the case may be (such
participation rights being hereinafter referred to as "tag-along" rights). Each
Original Stockholder and each Other New Investor may participate with respect to
all or any part of that number of shares of Common Stock which is equal to the
product obtained by multiplying (i) the aggregate number of shares of Common
Stock to be sold or transferred in the proposed disposition by (ii) a fraction,
the numerator of which is the number of shares of Common Stock at the time owned
by such Original Stockholder or such Other New Investor, as the case may be, and
the denominator of which is the sum of the total number of shares of Common
Stock then owned by the New Investors and the Original Stockholders (for the
purposes of such calculation treating the Series A Preferred Stock and Series B
Preferred Stock as the number of shares of Common Stock into

                                       4
<PAGE>   5

which such Series A Preferred Stock and Series B Preferred Stock, as the case
may be, is convertible as of the date of the Notice of Intention to Sell). Any
Original Stockholders or Other New Investors that have not notified the Company
of their intent to exercise tag-along rights within 7 days of receipt of an
Amended Notice shall be deemed to have elected not to exercise such tag-along
rights with respect to the transaction contemplated by such Amended Notice
(regardless of their election pursuant to the Notice of Intention to Sell
relating to such transaction).

                  (c) Each Original Stockholder and each Other New Investor
participating in the proposed disposition shall deliver to the Company, as agent
for such Original Stockholder and such Other New Investor, for transfer to the
proposed acquiror one or more certificates, properly endorsed for transfer or
accompanied by stock transfer powers duly endorsed for transfer, with all stock
transfer taxes paid and stamps affixed, which represent the number of shares of
Common Stock, Series A Preferred Stock or Series B Preferred Stock that such
Original Stockholder or such Other New Investor elects to dispose of pursuant to
Section 3(b). The consummation of such proposed disposition shall be subject to
the sole discretion of the Selling New Investor, who shall have no liability or
obligation whatsoever to any Original Stockholder or other New Investor
participating therein other than to obtain for such Original Stockholder the
same terms and conditions as those to be obtained by the New Investor in the
proposed disposition. Anything herein to the contrary notwithstanding, it is
understood that a Selling New Investor shall not have any authority to, and
shall not, act as agent or attorney-in-fact (or in any similar capacity) for any
party exercising tag-along rights hereunder.

                  (d) A stock certificate or certificates representing the
number of shares of Common Stock, Series A Preferred Stock or Series B Preferred
Stock to be disposed of by any Original Stockholder or such Other New Investors
pursuant to Section 3(b) hereof shall be delivered by the Company, on behalf of
the selling stockholders, to the purchaser upon the consummation of the
disposition of the Common Stock, Series A Preferred Stock or Series B Preferred
Stock pursuant to the terms and conditions specified in the Notice of Intention
to Sell and the Company shall promptly thereafter remit to such Original
Stockholder or such Other New Investor (i) that portion of the proceeds of the
disposition to which such Original Stockholder or such Other New Investor is
entitled by reason of such participation and (ii) a stock certificate
representing any balance of shares of Common Stock, Series A Preferred Stock or
Series B Preferred Stock, as the case may be, that were not so disposed of (or
all shares of Common Stock, Series A Preferred Stock and Series B Preferred
Stock, in the event the proposed disposition is not consummated).

                  (e) Anything herein to the contrary notwithstanding, no
tag-along rights of any Original Stockholder or such Other New Investor shall
apply hereunder with respect to (i) a transfer by a New Investor to an affiliate
(as defined in Rule 405 under the Securities Act) of

                                       5
<PAGE>   6

such New Investor, (ii) any distributions or transfers by a New Investor which
is a partnership to its partners (including any of its limited partners) or
(iii) in the case of a New Investor who is an individual, transfer by such New
Investor to the spouse or lineal descendants of such New Investor, including,
without limitation, transfer by bequest or devise, or to a trust or trusts for
the benefit of such New Investor or any of the foregoing; provided that in each
case such transferee agrees to become a party to this Agreement.

                  SECTION 4. Drag-Along Rights. (a) If the New Investors jointly
elect to transfer all or substantially all of their shares to a third party
(including any transfer of shares by the New Investors that is being effected by
a merger or consolidation of the Company with another entity), the New Investors
shall have the right (the "Drag-Along Right") (but not the obligation) to cause
the Original Stockholders to transfer all their respective shares of Common
Stock or Series A Preferred Stock to such third party (or to exchange such
shares pursuant to the terms of such merger or consolidation) at the same price
and on the same terms and conditions as the New Investors transfer their shares.
Each Original Stockholder will participate with respect to all or any part of
that number of shares of Common Stock which is equal to the product obtained by
multiplying (i) the number of shares of Common Stock at the time owned by such
Original Stockholder by (ii) a fraction, the numerator of which is the aggregate
number of shares of Common Stock to be sold or transferred by the New Investors
in the proposed disposition, and the denominator of which is the sum of the
total number of shares of Common Stock then owned by the New Investors (for the
purposes of such calculation treating the Series A Preferred Stock and Series B
Preferred Stock as the number of shares of Common Stock into which such Series A
Preferred Stock and Series B Preferred Stock, as the case may be, is
convertible). No such termination shall affect any rights of any party with
respect to a breach hereof by any other party prior to such termination.

                  (b) The New Investors may elect to exercise the Drag-Along
Right by delivering written notice to the Original Stockholders not later than
thirty (30) days prior to the consummation of the transfer described in Section
4(a) above. The notice delivered pursuant to this Section 4(b) will contain a
copy of the definitive documentation pursuant to which (i) the New Investors
have a bona fide intention to effect the transfer described in Section 4(a)
above, (ii) the name and address of the third party, and (iii) the expected
closing date of such transfer.

                  (c) Each Original Stockholder participating in the transfer
pursuant to the Drag-Along Right shall deliver to the third party at a closing
to be held at the offices of the Company (or such other place as the parties
agree), one or more certificates, properly endorsed for transfer, which
represent all the shares of Common Stock or Series A Preferred Stock owned by
such Original Stockholder, and each such Original Stockholder shall make such
representations and warranties as are made by the New Investors, and shall enter
into such agreements, in each case which are customary and reasonable in the
context of the proposed sale,

                                       6
<PAGE>   7

including without limitation representations and warranties (and indemnities
with respect thereto) that the transferee of the shares (or interests therein)
is receiving good and marketable title to such shares (or interests therein),
free and clear of all pledges, liens, encumbrances, mortgages or any other
security interests of any kind whatsoever. In addition, the Stockholders shall
reasonably cooperate and consult with each other in order to effect the transfer
described in this Section 4, and the Company and the Original Stockholders shall
provide reasonable assistance to the New Investors in connection with the
preparation of disclosure schedules relating to representations and warranties
to be made to the third party involved in such transfer and in the determination
of the appropriate scope of, or limitations or exceptions to, such
representations and warranties.

                  SECTION 5. Right of First Refusal. If an Original Stockholder
(for purposes of this Section 5, a "Selling Stockholder") wishes to sell, pledge
or transfer all or any portion of the Common Stock or Series A Preferred Stock
held by him at any time, in a transaction not otherwise prohibited by Section 2
hereof (or otherwise by the terms of this Agreement), then, and in any such
event, the following provisions shall be applicable; provided, however, that the
provisions of this Section 5 shall not apply to any transfer permitted by the
second paragraph of Section 2 or pursuant to Section 3 hereof or, in the case of
an Original Stockholder who is an employee or director of the Company, to the
Company pursuant to written agreements between the Company and such employee or
director and approved by the Board of Directors of the Company.

                  (a) Such Selling Stockholder shall promptly deliver a notice
of intention to sell (an "Offering Notice") to each other Stockholder (each, an
"Initial Offeree") and the Company in writing of the proposed sale, specifying
the number of such shares of Common Stock or Series A Preferred Stock to be sold
by such Selling Stockholder (such specified shares, the "Offered Shares"), the
name of the proposed purchaser or purchasers and the proposed cash purchase
price per share (the "Purchase Price").

                  (b) Thereupon, each Initial Offeree or his or its nominee
shall have the right and option, for a period of 10 business days after receipt
of the Offering Notice (the "Option Period"), to purchase, at the Purchase Price
per share, all or part of that number of shares of the Offered Shares which is
equal to the product obtained by multiplying (i) the aggregate number of shares
of the Offered Shares by (ii) a fraction, the numerator of which is the number
of shares of Common Stock at the time owned by such Initial Offeree and the
denominator of which is the number of shares of Common Stock at the time owned
by all Initial Offerees (for the purposes of such calculation treating the
Series A Preferred Stock and Series B Preferred Stock as the number of shares of
Common Stock into which such Series A Preferred Stock and Series B Preferred
Stock, as the case may be, is convertible as of the date of the Offering
Notice). Any Initial Offeree shall exercise such right and option to purchase
such Offered Shares by mailing a written

                                       7
<PAGE>   8

notice (a "Notice of Election") to the Selling Stockholder and the Company
within the Option Period. Any Notice of Election from an Initial Offeree who
wishes to exercise his or its right of purchase as to more than the number of
shares of Offered Shares set forth above shall state in his Notice of Election
the maximum number of Offered Shares he or it wishes to purchase. Any available
excess Offered Shares (that is, Offered Shares as to which the other Initial
Offerees shall not have exercised their rights of purchase) shall be allocated
to the Initial Offerees so indicating their desire to purchase such excess
Offered Shares, up to the quantity of Offered Shares requested on a pro rata
basis.

                  (c) If Notices of Election with respect to all (but not less
than all) of the Offered Shares shall have been received as aforesaid by the
Selling Stockholder, such Selling Stockholder shall sell the Offered Shares to
the Initial Offerees or their nominees at the price and on the terms stated in
the Offering Notice. The closing of such sale of Offered Shares shall take place
at the office of counsel for the Selling Stockholder no later than 30 days
following the expiration of the Option Period, or such other place and earlier
date as may be agreed by all parties to the transaction. At such closing the
Selling Stockholder shall deliver a certificate or certificates for the Common
Stock or Series A Preferred Stock to be sold, duly endorsed for transfer or
accompanied by stock powers duly endorsed for transfer and all stock transfer
taxes paid and stamps affixed, against receipt of the purchase price therefor by
certified or official bank check.

                  (d) If a Selling Stockholder is not required to sell Offered
Shares to Initial Offerees pursuant to paragraph (c) above, such Offered Shares
may be sold to the proposed purchaser identified in the related Offering Notice
for a period of 60 days following the expiration of the Option Period to any
person or persons at a price not lower than the price specified in the Offering
Notice and on other terms not more favorable to the purchaser than those
specified in the Offering Notice. Any such Offered Shares not sold by such 60th
day shall again be subject to the restrictions contained in this Agreement and
shall not thereafter be sold, pledged or transferred, except in compliance with
the applicable provisions of this Agreement.

                  SECTION 6. Preemptive Rights. (a) The Company hereby grants to
each Stockholder the right to purchase such Stockholder's Proportionate
Percentage (as hereinafter defined) of any future Eligible Offering (as
hereinafter defined). For the purposes of this Section 6, the following terms
shall have the meanings set forth below:

                  "Proportionate Percentage" means, with respect to any
         Stockholder as of any date, the result (expressed as a percentage)
         obtained by dividing (i) the number of shares of Common Stock, Series A
         Preferred Stock or Series B Preferred Stock owned by such Stockholder
         as of such date, by (ii) the total number of shares of Common Stock
         outstanding as of such date (for the purposes of such calculation
         treating the Series A

                                       8
<PAGE>   9

         Preferred Stock and Series B Preferred Stock as the number of shares of
         Common Stock into which such Series A Preferred Stock and Series B
         Preferred Stock, as the case may be, is convertible).

                  "Eligible Offering" means an offer by the Company to sell to
         investors (including any of the Stockholders) for cash shares of Common
         Stock or other capital stock having voting rights or other rights
         similar to Common Stock, or any security convertible into or
         exchangeable for, participating with, or carrying rights or options to
         purchase, Common Stock or other capital stock, other than an offering
         of securities by the Company:

                           (i) of shares of Common Stock or options to purchase
                  shares of Common Stock in connection with or pursuant to any
                  stock option or stock purchase plan approved by the Board of
                  Directors of the Company (including the Stock Option Plan) to
                  full-time employees, officers, directors, consultants and/or
                  advisors to the Company or its subsidiaries;

                           (ii) in connection with any acquisition of a related
                  businesses by the Company or any of its subsidiaries; or

                           (iii) in a public offering of shares of Common Stock
                  registered under the Securities Act (a "Qualified Public
                  Offering").

                  (b) The Company shall, before issuing any securities pursuant
to an Eligible Offering, give written notice thereof to each Stockholder. Such
notice shall specify the security or securities the Company proposes to issue
and the cash consideration that the Company intends to receive therefor. For a
period of fifteen (15) days following the date of such notice, each Stockholder
shall be entitled, by written notice to the Company, to elect to purchase all or
any part of such Stockholder's Proportionate Percentage of the securities being
sold in the Eligible Offering; provided, however, that if two or more securities
shall be proposed to be sold as a "unit" in an Eligible Offering, any such
election must relate to such unit of securities. In the event that elections
pursuant to this Section 6(b) shall not be made with respect to any securities
included in an Eligible Offering within such fifteen (15) day period, then the
Company may issue such securities to investors, but only for a consideration
payable in cash not less than, and otherwise on no more favorable terms to the
investors than, those set forth in the Company's notice and only within sixty
(60) days after the end of such fifteen (15) day period. In the event that any
such offer is accepted by a Stockholder or Stockholders, the Company shall sell
to such Stockholder or Stockholders, and such Stockholder or Stockholders shall
purchase from the Company, for the consideration and on the terms set forth in
the notice as aforesaid, the securities that such Stockholder or Stockholders
shall have elected to purchase.

                                       9
<PAGE>   10
         SECTION 7. Transactions with Affiliates. The New Investors shall not,
directly or indirectly, sell, lease, transfer or otherwise dispose of any of
their properties or assets to, or for the benefit of, or purchase or lease any
property or assets from, or otherwise enter into any transaction with, the
Company or any Subsidiary of the Company, except on terms that are no less
favorable to the Company or such Subsidiary than those (including, without
limitation, prices) ordinarily entered into in comparable transactions by the
Company or such subsidiary on an arms' length basis with an unrelated party.

         SECTION 8. Legend on Stock Certificates. Each certificate representing
shares of Common Stock, Series A Preferred Stock or Series B Preferred Stock, as
the case may be, owned by any Stockholder shall conspicuously bear the following
legend until such time as the shares represented thereby are no longer subject
to the provisions hereof:

         "THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO THE
         TERMS AND CONDITIONS OF A STOCKHOLDERS AGREEMENT, DATED AS OF DECEMBER
         1, 1999, AMONG THE COMPANY AND THE OTHER PARTIES THERETO. COPIES MAY BE
         OBTAINED AT NO COST BY WRITTEN REQUEST MADE BY THE HOLDER OF RECORD OF
         THIS CERTIFICATE TO THE COMPANY."

         The Company covenants that it shall keep a copy of this Agreement on
file at the address listed in Section 14 for the purpose of furnishing copies to
the holders of record of shares of Common Stock, Series A Preferred Stock or
Series B Preferred Stock.

         SECTION 9. Duration of Agreement. This Agreement shall terminate upon
the earliest to occur of (i) the tenth anniversary of the date hereof, (ii) the
consummation of a Qualified Public Offering, (iii) the acquisition of
"beneficial ownership" by any "person" or "group" other than the New Investors
or their affiliates, of voting stock of the Company representing more than 50%
of the voting power of all outstanding shares of such voting stock, whether by
way of merger or consolidation or otherwise, other than by way of a Qualified
Public Offering or (iv) with respect to any Stockholder, the date on which such
Stockholder no longer owns any shares of Common Stock (in each case, treating
the Series A Preferred Stock and Series B Preferred Stock as the number of
shares of Common Stock into which such Series A Preferred Stock and Series B
Preferred Stock, as the case may be, is convertible). No such termination shall
affect any rights of any party with respect to a breach hereof by any other
party prior to such termination.

         For purposes of this Section 8: (i) the terms "person" and "group"
shall have the meaning set forth in Section 13(d)(3) of the Securities Exchange
Act of 1934, as amended (the

                                       10
<PAGE>   11
"Exchange Act"), whether or not applicable, (ii) the term "beneficial owner"
shall have the meaning set forth in Rules 13d-3 and 13d-5 under the Exchange
Act, whether or not applicable, except that a person shall be deemed to have
"beneficial ownership" of all shares that any such person has the right to
acquire, whether such right is exercisable immediately or only after the passage
of time or upon the occurrence of certain events, (iii) any "person" or "group"
will be deemed to beneficially own any voting stock of the Company so long as
such person or group beneficially owns, directly or indirectly, in the aggregate
a majority of the voting stock of a registered holder of the voting stock of the
Company and (iv) the term "affiliate" shall have the meaning set forth in
Section 405 of the Securities Act, and in the case of a New Investor that is a
partnership shall include its partners (including limited partners), and in the
case of a New Investor that is an individual shall include the spouse and lineal
descendants of such New Investor, and any trust or trusts for the benefit of
such New Investor, spouse or lineal descendants.

         SECTION 10. Representations and Warranties. Each Stockholder, severally
and not jointly, represents and warrants to the Company and the other
Stockholders as follows:

         (a)      The execution, delivery and performance of this Agreement by
such Stockholder will not violate any provision of applicable law, any order of
any court or other agency of government, or any provision of any indenture,
agreement or other instrument to which such Stockholder or any of its or his
properties or assets is bound, or conflict with, result in a breach of or
constitute (with due notice or lapse of time or both) a default under any such
indenture, agreement or other instrument.

         (b)      This Agreement has been duly executed and delivered by such
Stockholder, and when executed by the other parties hereto will constitute the
legal, valid and binding obligation of such Stockholder, enforceable in
accordance with its terms, subject, as to enforcement of remedies, to applicable
bankruptcy, insolvency, fraudulent conveyance and similar laws and to
limitations on the availability of equitable remedies.

         (c)      The shares of Common Stock, Series A Preferred Stock and
Series B Preferred Stock listed in Schedule I and Schedule II opposite the name
of such Stockholder constitute all the shares of Common Stock, Series A
Preferred Stock or Series B Preferred Stock, as the case may be, of the Company
owned by such Stockholder as of the date hereof or that may be acquired by such
Stockholder pursuant to the Recapitalization Agreement.

         SECTION 11. Headings. Headings of articles, sections and paragraphs of
this Agreement are inserted for convenience of reference only and shall not
affect the interpretation or be deemed to constitute a part hereof.

                                       11
<PAGE>   12
         SECTION 12. Severability. In the event that any one or more of the
provisions contained in this Agreement or in any other instrument referred to
herein shall, for any reason, be held to be invalid, illegal or unenforceable,
such illegality, invalidity or unenforceability shall not affect any other
provisions of this Agreement.

         SECTION 13. Benefits of Agreement. Nothing expressed by or mentioned in
this Agreement is intended or shall be construed to give any person other than
the parties hereto and their respective successors and permitted assigns any
legal or equitable right, remedy or claim under or in respect of this Agreement
or any provision herein contained, this Agreement and all conditions and
provisions hereof being intended to be and being for the sole and exclusive
benefit of the parties hereto and their respective successors and permitted
assigns. Notwithstanding anything in this Section 13 to the contrary, subject to
compliance with the terms of this Agreement, each Stockholder shall have the
right to assign its interests hereunder to any transferee of the Common Stock,
Series A Preferred Stock or Series B Preferred Stock held by such Stockholder in
compliance with this Agreement; provided, however, that such transferee shall
agree in writing with the parties hereto to be bound by, and to comply with, all
applicable provisions of this Agreement and to be deemed to be a Stockholder for
purposes of this Agreement (it being understood that for purposes of this
Agreement any successor to or assigns of any (i) New Investor shall be deemed to
be a New Investor, and (ii) Original Stockholder shall be deemed to be an
Original Stockholder, excluding the transfer by a New Investor to an Original
Stockholder, or a transfer by an Original Stockholder to a New Investor, as the
case may be).

         SECTION 14. Notices. Any notice or other communications required or
permitted hereunder shall be deemed to be sufficient and received if contained
in a written instrument delivered in person or by courier or duly sent by first
class certified mail, postage prepaid, or by facsimile addressed to such party
at the address or facsimile number set forth below:

         (1) if to the Company, to it at:

                  Protocol Holdings, Inc.
                  2197 Ringling Blvd.
                  Sarasota, Florida  34237

                  Attention:  President
                  Telecopy:  941-906-1422

         (2) if to any Stockholder, to the address of such Stockholder appearing
in Schedule I or Schedule II hereto;

                                       12
<PAGE>   13
or, in any case, at such other address or facsimile number as shall have been
furnished in writing by such party to all of the other parties hereto. All such
notices, requests, consents and other communications shall be deemed to have
been received (a) in the case of personal or courier delivery, on the date of
such delivery, (b) in the case of mailing, on the fifth business day following
the date of such mailing and (c) in the case of facsimile, when received.

         SECTION 15. Modification. Neither this Agreement nor any provision
hereof may be modified, changed, discharged or terminated except by an
instrument in writing signed by the Company, the New Investors and the holders
of the majority of the aggregate voting power of shares of Common Stock
(treating the Series A Preferred Stock as the number of shares of Common Stock
into which such Series A Preferred Stock is convertible) of the Original
Stockholders who have executed this Agreement.

         SECTION 16. Counterparts. This Agreement may be executed in any number
of counterparts, and each such counterpart hereof shall be deemed to be an
original instrument, but all such counterparts together shall constitute but one
agreement.

         SECTION 17. GOVERNING LAW. THIS AGREEMENT AND ALL MATTERS RELATING TO
THIS AGREEMENT, UNLESS OTHERWISE SPECIFIED, SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO
ITS CONFLICT OF LAW RULES.

                                       13
<PAGE>   14
         IN WITNESS WHEREOF, each of the parties hereto has executed this
Agreement as a sealed instrument, all as of the day and year first above
written.

                             PROTOCOL HOLDINGS, INC.

                             By /s/ Raymond P. Wilson
                                ----------------------------------------
                               Name: Raymond P. Wilson
                               Title: Chief Financial Officer

                             WILLIS STEIN & PARTNERS II, L.P.

                             By /s/ Robert C. Froetscher
                                ----------------------------------------
                               Name: Robert C. Froetscher
                               Title: Managing Director

                             WILLIS STEIN & PARTNERS DUTCH, L.P.

                             By /s/ Robert C. Froetscher
                                ----------------------------------------
                               Name: Robert C. Froetscher
                               Title: Managing Director

                             BCI GROWTH IV, L.P.
                             By Glenpointe Associates, LLP,
                                General Partner
                             By Glenpointe Associates, LLC
                                General Partner

                             By /s/ Peter O. Wilde
                                ----------------------------------------
                               Name: Peter O. Wilde
                               Title: Managing Member
<PAGE>   15

page intenionally left blank

<PAGE>   16
                             BCI GROWTH V, L.P.
                             By Glenpointe Associates V, LLC
                                General Partner

                             By /s/ Peter O. Wilde
                                ----------------------------------------
                               Name: Peter O. Wilde
                               Title: Managing Member

                             BCI INVESTORS, L.L.C.

                             By /s/ Peter O. Wilde
                                ----------------------------------------
                               Name: Peter O. Wilde
                               Title: Managing Member
<PAGE>   17
                             ING (U.S.) CAPITAL LLC

                             By /s/ Bradford Pollard
                                ----------------------------------------
                                Name: Bradford Pollard
                                Title: Vice President
<PAGE>   18
                             BENEDETTO GARTLAND & COMPANY, INC.

                             By     /s/ Charles Mobus *
                                ----------------------------------------
                               Name:
                               Title:

                                    /s/ Kevin N. Blayne *
                                ----------------------------------------
                             Kevin N. Blayne

                                    /s/ Claude Cohen *
                                ----------------------------------------
                             Claude Cohen

                                    /s/ Robert J. Conrads *
                                ----------------------------------------
                             Robert J. Conrads

                             ELIEZER COHEN CANADA CORPORATION

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

                                    /s/ Robert C. Gust *
                                ----------------------------------------
                             Robert C. Gust

                                    /s/ David Knafo *
                                ----------------------------------------
                             David Knafo

         *        Executed pursuant to the Election to Redemption Form
<PAGE>   19

                                  David Knafo

                           *Executed pursuant to the Election to Redemption Form
<PAGE>   20
                                    /s/ Andrew M. Knee *
                                ----------------------------------------
                             Andrew M. Knee

                                    /s/ Richard Kommitt *
                                ----------------------------------------
                             Richard Kommit

                             LA FIDUCIE FAMILLIALE COHEN

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

                             LA FIDUCIE FAMILLIALE KNAFO

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

                                    /s/ Jerry D. Lewis *
                                ----------------------------------------
                             Jerry D. Lewis

                                    /s/ Stephen G. McLean *
                                ----------------------------------------
                             Stephen G. McLean

                                    /s/ David Van Derveer *
                                ----------------------------------------
                             David Van Derveer

         *        Executed pursuant to the Election to Redemption Form
<PAGE>   21

                           *Executed pursuant to the Election to Redemption Form

<PAGE>   22
                                    /s/ Raymond P. Wilson *
                                ----------------------------------------
                             Raymond P. Wilson

                                    /s/ David Dearborn *
                                ----------------------------------------
                             David Dearborn

                                    /s/ Jeanine El-Khoury *
                                ----------------------------------------
                             Jeanine El-Khoury

                                    /s/ Stephen Kozik *
                                ----------------------------------------
                             Stephen Kozik

                                    /s/ Shane M. Lewis *
                                ----------------------------------------
                             Shane M. Lewis

                                    /s/ Michael Morehouse *
                                ----------------------------------------
                             Michael Morehouse

                                    /s/ Francis Quinn *
                                ----------------------------------------
                             Francis Quinn

                                    /s/ Soeb Rangwala *
                                ----------------------------------------
                             Soeb Rangwala

         *        Executed pursuant to the Election to Redemption Form
<PAGE>   23
                                    /s/ Robert R. Roscoe *
                                ----------------------------------------
                             Robert R. Roscoe

                                    /s/ Ross R. Rosenau *
                                ----------------------------------------
                             Ross R. Rosenau

                                    /s/ Brian Schuvart *
                                ----------------------------------------
                             Brian Schuvart

                                    /s/ Daniel L. Sullivan *
                                ----------------------------------------
                             Daniel L. Sullivan

                                    /s/ Fidele Toghoua *
                                ----------------------------------------
                             Fidele Toghoua

                                    /s/ Richard Trepanier *
                                ----------------------------------------
                             Richard Trepanier

                             DONALD N. MOLITOR, AS TRUSTEE OF THE AMENDED AND
                             RESTATED DONALD N. MOLITOR FAMILY TRUST U/A/D
                             10/15/87

         *        Executed pursuant to the Election to Redemption Form
<PAGE>   24
                             By                    *
                                ----------------------------------------
                               Name:
                               Title:

                  *        Executed pursuant to the Election to Redemption Form
<PAGE>   25
                             JUDITH M. MOLITOR, AS TRUSTEE OF THE AMENDED AND
                             RESTATED JUDITH M. MOLITOR FAMILY TRUST U/A/D
                             10/15/87

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

                                    /s/ D. Scott Molitor *
                                ----------------------------------------
                             D. Scott Molitor

                                    /s/ Joseph Post *
                                ----------------------------------------
                             Joseph Post

                                    /s/ C. Baldwin Read *
                                ----------------------------------------
                             C. Baldwin Read

                                    /s/ Charles F. Read *
                                ----------------------------------------
                             Charles F. Read

                                    /s/ Joseph Sarno *
                                ----------------------------------------
                             Joseph Sarno

                                    /s/ Stephanie Smith *
                                ----------------------------------------
                             Stephanie Smith

                  *        Executed pursuant to the Election to Redemption Form
<PAGE>   26
                                    /s/ John H. and Carol C. Turner *
                                ----------------------------------------
                             John H. and Carol C. Turner

                  *        Executed pursuant to the Election to Redemption Form

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