FORM OF NON-QUALIFIED STOCK OPTION AGREEMENT

          THIS  AGREEMENT,  dated as of ___________  ___,  199__, is made by and
between KMC Telecom Holdings,  Inc., a Delaware corporation hereinafter referred
to  as  the  "Corporation",   and  ____________________,   an  employee  of  the
Corporation  or a Subsidiary  (as defined below) or Affiliate (as defined below)
of the Corporation, hereinafter referred to as "Optionee".

          WHEREAS, the Corporation wishes to afford the Optionee the opportunity
to purchase  shares of its Common  Stock,  par value $.01 per share (the "Common
Stock");

          WHEREAS,  the Corporation wishes to carry out the Plan (as hereinafter
defined),  the terms of which are hereby  incorporated  by reference  and made a
part of this Agreement; and

          WHEREAS,  the  Committee  (as  hereinafter   defined),   appointed  to
administer the Plan,  has determined  that it would be to the advantage and best
interest of the  Corporation  and its  stockholders  to grant the  Non-Qualified
Options  provided  for herein to the  Optionee  as an  incentive  for  increased
efforts during his term of office with the  Corporation or its  Subsidiaries  or
Affiliates,   and  has  advised  the  Corporation  thereof  and  instructed  the
undersigned officers to issue said Options;

          NOW,  THEREFORE,  in  consideration  of the  mutual  covenants  herein
contained and other good and valuable consideration,  receipt of which is hereby
acknowledged, the parties hereto do hereby agree as follows: 


                                    Article I

                                   DEFINITIONS

          Whenever the following  terms are used in this  Agreement,  they shall
have the  meaning  specified  in the Plan or below  unless the  context  clearly
indicates to the contrary. 

SECTION 1.1 - AFFILIATE

          "Affiliate"   shall  mean,  with  respect  to  the  Corporation,   any
corporation directly or indirectly  controlling,  controlled by, or under common
control with,  the  Corporation  or any other entity  designated by the Board of
Directors of the  Corporation  in which the  Corporation  or an Affiliate has an
interest.


                                                                              2




SECTION 1.2 - CAUSE

          "Cause" shall mean,  except if such term or similar term is defined in
an employment agreement between the Corporation and the Optionee,  in which case
the employment agreement definition shall apply in lieu of this Section 1.2, (a)
the commission of an act of fraud or  embezzlement  (including the  unauthorized
disclosure of confidential or proprietary  information of the Corporation or any
of its subsidiaries which results in financial loss to the Corporation or any of
its Affiliates),  (b) the conviction of a felony,  (c) willful  misconduct as an
employee of the Corporation or any of its Affiliates which is reasonably  likely
to result in material  injury or financial loss to the Corporation or any of its
Affiliates or (d) the willful  failure to render  services to the Corporation or
any of its Affiliates in accordance with his employment which failure amounts to
a material neglect of duties to the Corporation or any of its subsidiaries  that
is not corrected by the Optionee, to the satisfaction of the Corporation, in its
sole  discretion,  within 30 days after the Corporation  provides  Optionee with
written  notice of its intention to terminate his employment for Cause by virtue
of this section (d). Any voluntary termination of employment by the Optionee (i)
within 40 days after having  received the written notice provided in section (d)
or (ii) after the Corporation  first has reason to believe that the Optionee has
committed a felony and before any final  judicial  determination  regarding such
felony,  shall be deemed to be a  termination  of  Optionee's  employment by the
Corporation for Cause.

SECTION 1.3 - CODE

          "Code"  shall mean the  Internal  Revenue  Code of 1986,  as  amended.

SECTION 1.4 - COMMITTEE

          "Committee" shall mean  the Compensation Committee of the Corporation.

SECTION 1.5 - COMMON STOCK

          "Common Stock" shall mean the  Corporation's  common stock,  par value
$.0l per share.

SECTION 1.6 - COST

          "Cost"  shall mean the  exercise  price per share paid to exercise the
option, as adjusted for stock splits, subdivisions,  combinations,  Common Stock
dividends and similar transactions. 

SECTION 1.7 - GRANT DATE

          "Grant Date" shall mean the date on which the Options  provided for in
this Agreement were granted or, if earlier,  the date the Optionee's  employment
with the Company or any Affiliate began, but in no event earlier than January 1,
1995. 


                                                                               3


SECTION 1.8 - MANAGER STOCKHOLDER'S AGREEMENT

          "Manager  Stockholder's  Agreement" shall mean a Manager Stockholder's
Agreement substantially in the form annexed hereto as Exhibit A.

SECTION 1.9 - OPTIONS

          "Options"  shall mean the  non-qualified  options to  purchase  Common
Stock granted under this Agreement. 

SECTION 1.10 - OPTION SHARES

          "Option  Shares" shall mean any Common Stock issuable or issued by the
Company  upon  exercise  of any  Option,  as  adjusted  as a result of any stock
dividend,   stock  split,   merger,   consolidation,   reorganization  or  other
recapitalization. 

SECTION 1.11 - PERMANENT DISABILITY

          The Optionee  shall be deemed to have a "Permanent  Disability" if the
Optionee is unable to engage in the activities required by the Optionee's job by
reason of any  medically  determined  physical  or mental  impairment  which has
lasted for a continuous period of not less than 12 months. 

SECTION 1.12 - PLAN

          "Plan"  shall mean the 1998  Stock  Purchase  and Option  Plan for Key
Employees of KMC Telecom Holdings, Inc. and Affiliates,  as amended from time to
time. 

SECTION 1.13 - PRONOUNS

          The masculine  pronoun shall include the feminine and neuter,  and the
singular  the plural,  where the  context so  indicates.  

SECTION  1.14 - PUBLIC OFFERING

          "Public  Offering"  shall  mean a sale of shares of the  Corporation's
common  stock to the  public  pursuant  to a  registration  statement  under the
Securities  Act of 1933,  as amended,  that has been  declared  effective by the
Securities and Exchange Commission (other than a registration  statement on Form
S-4 or Form  S-8,  or any  successor  or other  forms  promulgated  for  similar
purposes,  or a  registration  statement  in  connection  with  an  offering  to
employees  of the  Corporation  and its  Affiliates).  

SECTION  1.15 - QUALIFIED PUBLIC OFFERING

          "Qualified  Public  Offering"  shall mean the first  offer for sale of
Common  Stock,  in any single  transaction  or series of  related  transactions,
pursuant to an effective  registration  statement filed by the Company under the
Securities  Act of 1933,  as amended,  in which the Company  receives  aggregate
gross proceeds (before deduction of underwriting discounts and expenses of sale)
of at least $40,000,000, provided that, the price per share at which such shares
are  sold in the  offering  (before  deduction  of  underwriting  discounts  and
expenses  of sale)  is at  least  four (4)  times  the  Conversion  Price of the
Company's Series A Convertible  Preferred Stock (it being  acknowledged that, as
of May 31, 1998, such Conversion Price was $20.63 per share) which would then be
in effect  if  determined  pursuant  to the  terms of the  Series A  Convertible
Preferred  Stock in effect  (whether  or not any  shares of such  stock are then
outstanding). 



                                                                               4


SECTION 1.16 - RETIREMENT

          "Retirement" shall mean the voluntary termination of employment by the
Optionee  after the later of (i) having been employed by the  Corporation  for a
period of 5 years  following the Grant Date or by an Affiliate for a period of 5
years  from the  later of (a)  January  1, 1995 or (b) the date  Optionee  first
rendered  service to the Affiliate and (ii) the date on which the sum of (a) the
Optionee's years of service  (calculated as in (i) above) and (b) the Optionee's
age,  equals or exceeds 65, unless the Committee  shall have provided,  prior to
the Grant Date or  thereafter,  that some other  lesser age,  period of service,
combination thereof or other terms or conditions shall constitute  "Retirement".

SECTION 1.17 - SECRETARY

          "Secretary" shall mean the Secretary of the Corporation.  

SECTION 1.18 - SUBSIDIARY

          "Subsidiary"  shall  mean  any  corporation  in an  unbroken  chain of
corporations  beginning  with the  Corporation if each of the  corporations,  or
group of commonly  controlled  corporations  (other than the last corporation in
the  unbroken  chain),  then  owns  stock  possessing  50% or more of the  total
combined  voting power of all classes of stock in one of the other  corporations
in such chain. 


                                   ARTICLE II

                                GRANT OF OPTIONS


SECTION 2.1 - GRANT OF OPTIONS

          For good and valuable consideration,  on and as of the date hereof the
Corporation irrevocably grants to the Optionee an Option to purchase any part or
all of an  aggregate of the number of shares set forth with respect to each such
Option on the signature  page hereof of its $.0l par value Common Stock upon the
terms and conditions set forth in this Agreement.

SECTION 2.2 - EXERCISE PRICE

          Subject  to Section  2.4,  the  exercise  price of the shares of stock
covered by the Options  shall be at the price per share,  without  commission or
other charge, as follows:

     -  shares (representing 60 percent of the shares hereunder) shall be at $20
     -  shares (representing 20 percent of the shares hereunder) shall be at $30
     -  shares (representing 20 percent of the shares hereunder) shall be at $40


                                                                               5


SECTION 2.3 - CONSIDERATION TO THE CORPORATION

          In  consideration of the granting of these Options by the Corporation,
the Optionee agrees to render faithful and efficient services to the Corporation
or a  Subsidiary  or  Affiliate,  with such duties and  responsibilities  as the
Corporation  shall from time to time  prescribe  but  subject to the  employment
agreement,  if any,  between  the  Company  and the  Optionee.  Nothing  in this
Agreement or in the Plan shall confer upon the Optionee any right to continue in
the employ of the  Corporation or any Subsidiary or Affiliate or shall interfere
with or restrict in any way the rights of the Corporation  and its  Subsidiaries
or Affiliates,  which are hereby expressly reserved, to terminate the employment
of the Optionee at any time for any reason  whatsoever,  with or without  cause.
Notwithstanding  the  foregoing,   any  termination  shall  be  subject  to  the
employment agreement, if any, between the Company and the Optionee.

SECTION 2.4 - ADJUSTMENTS IN OPTIONS PURSUANT TO MERGER, CONSOLIDATION, ETC.

          Subject  to Section 9 of the Plan,  in the event that the  outstanding
shares of the stock subject to an Option are, from time to time, changed into or
exchanged for a different  number or kind of shares of the  Corporation or other
securities   of  the   Corporation   by  reason  of  a  merger,   consolidation,
recapitalization,  Change  of  Control,  reclassification,  stock  split,  stock
dividend,  combination  of shares,  or otherwise,  the  Committee  shall make an
appropriate and equitable adjustment in the number and kind of shares and/or the
amount  of  consideration  as to which or for  which,  as the case may be,  such
Option,  or portions thereof then  unexercised,  shall be exercisable.  Any such
adjustment  made by the Committee  shall be final and binding upon the Optionee,
the Corporation and all other interested persons.


                                  Article III

                            PERIOD OF EXERCISABILITY

SECTION 3.1        - COMMENCEMENT OF EXERCISABILITY

          (a)  The  Option  shall  become  exercisable  as to 10% of the  shares
subject to the Option on the sixth month anniversary of the Grant Date and shall
become  exercisable  as to an  additional  10% of the shares upon each six month
anniversary  thereafter;  provided,  however,  that  subject  to  the  foregoing
schedule,  the portion of the Option which shall first become  exercisable shall
be those shares  exercisable  at $20 per share;  thereafter,  commencing  in the
fourth year after  grant,  the shares  with an  exercise  price of $30 per share
shall become  exercisable  and,  commencing  in the fifth year after grant,  the
shares with an exercise  price of $40 per share shall  become  exercisable.  (b)
Notwithstanding  any other provision of this  Agreement,  no Option shall become
exercisable  as  to  any  additional   shares  of  Common  Stock  following  the
termination  of  employment  of the  Optionee  for any  reason and any Option or
portion  thereof which is not  exercisable as of the  Optionee's  termination of
employment shall be immediately cancelled.


                                                                               6


SECTION 3.2 - ACCELERATION OF EXERCISABILITY

          The exercisability of the Option shall be accelerated as follows:

          (a) In the event of a Qualified Public Offering, the 10% of the shares
subject to the Option which would have become  exercisable at the next six month
anniversary  of  the  Grant  Date  shall  become  immediately  exercisable.  The
remaining  portion of the shares  subject to the Option shall continue to become
exercisable  as to each 10% of the shares  subject to the Option,  following the
Qualified Public Offering,  upon each six month anniversary of the Grant Date so
that the final  unvested  10% of the shares  subject to the Option  shall become
exercisable six months earlier than originally  scheduled.

          (b) The Option shall become exercisable immediately following a Change
of Control as to the  greater of (i) 25% of the shares  subject to the Option as
of the Grant Date or (ii) 50% of the unvested shares subject to the Option,  but
only to the extent such Option has not otherwise terminated (75% of the unvested
shares  if the sale  price  per share is  between  $60 - $79.99  and 100% of the
unvested shares if the sale price per share is $80 or greater) (in either (i) or
(ii),  starting with the shares with the lowest exercise  price).  The remaining
Options shall  continue to vest in accordance  with the terms of this  Agreement
and the Plan.

SECTION 3.3 - EXPIRATION OF OPTIONS

          The Options may not be exercised  to any extent by the Optionee  after
the first to occur of the following  events:

          (a) The tenth anniversary of the Grant Date; or

          (b) The first anniversary of the date of the Optionee's termination of
     employment by reason of death, Permanent Disability or Retirement; or

          (c) The first  business day which is fifteen  calendar  days after the
     earlier of (i) 75 days after  termination of employment of the Optionee for
     any reason other than for death, Permanent Disability,  Retirement or Cause
     or (ii) the delivery of notice by the  Corporation,  after  termination  of
     Optionee's  employment,  that it does not intend to exercise its call right
     pursuant to Section 5.3; or

          (d)  The  date  the  Option  is  terminated  pursuant  to the  Manager
     Stockholder's Agreement;

          (e)  The  date  of an  Optionee's  termination  of  employment  by the
     Corporation for Cause; or

          (f) If the Committee so determines  pursuant to Section 9 of the Plan,
     the effective date of either the merger or consolidation of the Corporation
     into  another  Person,  a  Change  of  Control,  or  the  recapitalization,
     reclassification,  liquidation or dissolution of the Corporation.  At least
     ten (10) days prior to the  effective  date of such merger,  consolidation,
     exchange, acquisition, recapitalization,  reclassification,  liquidation or
     dissolution,  the Committee shall give the Optionee notice, in writing,  of
     such event if the Option has then neither been fully  exercised  nor become
     unexercisable under this Section 3.2.


                                                                               7


                                   ARTICLE IV

                               EXERCISE OF OPTIONS

SECTION 4.1 - PERSON ELIGIBLE TO EXERCISE

          During the lifetime of the Optionee, only he may exercise an Option or
any portion thereof. After the death of the Optionee, any exercisable portion of
an Option  may,  prior to the time when an Option  becomes  unexercisable  under
Section  3.3,  be  exercised  by his  personal  representative  or by any person
empowered to do so under the Optionee's  will or under the then  applicable laws
of descent and distribution.

SECTION  4.2 - PARTIAL  EXERCISE  AND PERIODS OF UNEXERCISABILITY

          Any  exercisable  portion of an Option or the entire  Option,  if then
wholly  exercisable,  may be exercised in whole or in part at any time,  or from
time to time,  prior to the time when the  Option  or  portion  thereof  becomes
unexercisable  under Section 3.3; provided,  however,  that any partial exercise
shall be for  whole  shares  of  Common  Stock  only;  provided,  further,  that
notwithstanding  any other  provision  of this  Agreement,  no  Option  shall be
exercisable  during: a) the 40 day period commencing on the date the Corporation
provides written notice to the Optionee that it intends to terminate  Optionee's
employment  pursuant to provision (d) of the definition of Cause if the Optionee
does not cure;  or b) the  period  between  the time the  Corporation  first has
reasonable  cause to believe that  Optionee has committed a felony and any final
judicial determination regarding such felony.

SECTION 4.3 - MANNER OF EXERCISE

          An Option, or any exercisable portion thereof, may be exercised solely
by delivering  to the Secretary or his office all of the following  prior to the
time when the Option or such portion  becomes  unexercisable  under Section 3.3:

          (a) Notice in writing  signed by the Optionee or the other person then
     entitled to exercise the Option or portion thereof, stating that the Option
     or portion  thereof is thereby  exercised,  such notice  complying with all
     applicable  administrative rules established by the Committee. In the event
     such rules are materially  modified by the Committee such Optionee shall be
     notified in writing;

          (b) Full  payment  (in  cash,  by  check,  unrestricted  shares of the
     Company held for at least six months (but only following a Public Offering)
     or by a  combination  thereof)  for the shares  with  respect to which such
     Option or portion thereof is exercised;

          (c) A  bona  fide  written  representation  and  agreement,  in a form
     satisfactory to the Committee,  signed by the Optionee or other person then
     entitled  to  exercise  such Option or portion  thereof,  stating  that the
     shares of stock are being acquired for his own account,  for investment and
     without any present  intention of  distributing or reselling said shares or
     any of them except as may be permitted under the Securities Act of 1933, as
     amended (the "Act"), and then applicable rules and regulations  thereunder,
     and that the Optionee or other person then entitled to exercise such Option
     or portion thereof will indemnify the Corporation  against and hold it free
     and harmless from any loss, damage,  expense or liability  resulting to the
     Corporation  if any sale or  distribution  of the shares by such  person is
     contrary to the representation  and agreement referred to above;  provided,
     however,  that  the  Committee  may,  in  its  discretion,   take  whatever
     additional  actions  it deems  appropriate  to ensure  the  observance  and
     performance of such  representation  and agreement and to effect compliance
     with the Act and any other federal or state securities laws or regulations;


                                                                               8

          (d) Full  payment  to the  Corporation  of all  amounts  which,  under
     federal,  state or local law, it is required to withhold  upon  exercise of
     the Option;

          (e) An executed Manager Stockholder's  Agreement, or appropriate proof
     that a Manager Stockholder's  Agreement has been previously executed by the
     Optionee; and

          (f) In the event the  Option or  portion  thereof  shall be  exercised
     pursuant to Section 4.1 by any person or persons  other than the  Optionee,
     appropriate  proof of the right of such person or persons to  exercise  the
     option.

Without  limiting the generality of the foregoing,  the Committee may require an
opinion of counsel reasonably acceptable to it to the effect that any subsequent
transfer  of shares  acquired on exercise of an Option does not violate the Act,
and.  may  issue  stop-transfer  orders  covering  such  shares,  provided  such
stop-transfer  orders remain in effect only so long as is required to Permit the
Company to remain in  compliance  with the Act.  Share  certificates  evidencing
stock  issued on  exercise  of this  Option  shall  bear an  appropriate  legend
referring to the provisions of subsection  (c) above and the agreements  herein.
The written  representation  and agreement  referred to in subsection  (c) above
shall,  however,  not be  required  if the shares to be issued  pursuant to such
exercise  have been  registered  under the Act,  and such  registration  is then
effective in respect of such shares.

          In  addition,   after  the  occurrence  of  a  Public  Offering,   the
Corporation  shall  pay  the  interest  expenses  incurred  by the  Optionee  in
connection  with any loan from a broker  incurred  by the  Optionee  in order to
exercise  his  Option;  provided,  however,  that  the  Corporation  shall  only
reimburse  the interest  relating to such loan  outstanding  for a period not to
exceed 5 business days.

SECTION 4.4 - CONDITIONS TO ISSUANCE OF STOCK CERTIFICATES

          The shares of stock deliverable upon the exercise of an Option, or any
portion  thereof,  may be either  previously  authorized but unissued  shares or
issued shares which have then been  reacquired by the  Corporation.  Such shares
shall be fully paid and nonassessable.  The Corporation shall not be required to
issue or deliver any certificate or  certificates  for shares of stock purchased
upon the exercise of an Option or portion thereof prior to fulfillment of all of
the following conditions:

          (a) The  obtaining  of approval or other  clearance  from any state or
     federal  governmental  agency which the  Committee  shall,  in its absolute
     discretion, determine to be necessary or advisable; and

          (b) The lapse of such reasonable period of time following the exercise
     of the Option as the Committee may from time to time  establish for reasons
     of administrative convenience.

SECTION 4.5 - RIGHTS AS STOCKHOLDER

          The  holder of an Option  shall not be,  nor have any of the rights or
privileges  of, a  stockholder  of the  Corporation  in  respect  of any  shares
purchasable  upon the exercise of the Option or any portion  thereof  unless and
until certificates  representing such shares shall have been issued or, upon the
determination of a court of competent  jurisdiction,  should have been issued by
the Corporation to such holder.



                                                                               9

                                    ARTICLE V

                                  MISCELLANEOUS
SECTION 5.1 - ADMINISTRATION

          The  Committee  shall  have the  power,  such  power  to be  exercised
reasonably, to interpret the Plan and this Agreement and to adopt such rules for
the administration, interpretation and application of the Plan as are consistent
therewith  and  herewith  and to  interpret  or revoke any such rules.  All such
actions taken and all  interpretations  and determinations made by the Committee
shall be final and binding  upon the  Optionee,  the  Corporation  and all other
interested  persons.  No member of the Committee shall be personally  liable for
any action,  determination or interpretation  made in good faith with respect to
the Plan or the Options. In its absolute discretion,  the Board of Directors may
at any time and from time to time  exercise any and all rights and duties of the
Committee under the Plan and this Agreement.

SECTION  5.2 -  OPTIONS  NOT TRANSFERABLE

          Except as provided in the Manager Stockholder's Agreement, neither the
Options nor any interest or right  therein or part  thereof  shall be liable for
the debts,  contracts  or  engagements  of the  Optionee  or his  successors  in
interest  or  shall  be  subject  to   disposition   by  transfer,   alienation,
anticipation,  pledge,  encumbrance,  assignment or any other means whether such
disposition  be  voluntary  or  involuntary  or by operation of law by judgment,
levy,  attachment,  garnishment  or any  other  legal or  equitable  proceedings
(including bankruptcy),  and any attempted disposition thereof shall be null and
void and of no  effect;  provided,  however,  that  this  Section  5.2 shall not
prevent transfers by will or by the applicable laws of descent and distribution.

SECTION 5.3 - CORPORATION'S OPTION TO PURCHASE UPON TERMINATION OF EMPLOYMENT

          (a) Upon any  termination of Optionee's  employment,  the  Corporation
shall have the right for 75 days following the date of such  termination to give
notice to the  Optionee  and the  Optionee  shall be  required  to sell,  on one
occasion,  within 60 days of the receipt of such notice, a specified  portion of
the Option and Option  Shares then held by the Optionee at a specified  price as
follows:  

          (i) If the  Optionee  is  terminated  without  Cause or due to  death,
Permanent  Disability or  Retirement,  the Optionee shall be required to sell to
the Company 50% of the Option and Option  Shares then held by the  Optionee at a
price equal to:

          (A) with respect to Option  being sold to the  Company,  the excess of
(a) the  Fair  Market  Value,  at the  time  of the  termination  of  Optionee's
employment,  of the shares to be  received  upon  exercise  of the  Option  (not
including  any shares as to which the Option was not  exercisable)  over (b) the
aggregate exercise price for those shares; and

          (B) with respect to the Option  Shares being sold to the Company,  the
Fair Market Value of the shares,  at the time of the  termination  of Optionee's
employment; 

          (ii) If the Optionee voluntarily terminates  employment,  the Optionee
shall be required  to sell to the Company all the Option and Option  Shares then
held by the Optionee at a price equal to:

          (A) with respect to Option  being sold to the  Company,  the excess of
(a) the  Fair  Market  Value,  at the  time  of the  termination  of  Optionee's
employment,  of the shares to be  received  upon  exercise  of the  Option  (not
including  any shares as to which the Option was not  exercisable)  over (b) the
aggregate exercise price for those shares; and



                                                                              10


          (B) with respect to the Option  Shares being sold to the Company,  the
Fair Market Value of the shares,  at the time of the  termination  of Optionee's
employment;

          (iii) If the  Optionee is  terminated  by the  Company for Cause,  the
Optionee  shall be  required  to sell to the  Company  all or any portion of the
Option  Shares then held by the  Optionee at a price equal to the lesser of Cost
or Fair Market Value.

          (b) If the Company  exercises its right under (a) above,  the Optionee
shall receive payments for such Option and/or Option Shares as follows:

          (i) If the  Optionee  is  terminated  without  Cause or due to  death,
Permanent Disability or Retirement,  the Optionee shall receive payment in cash;
provided,  however'  that if the Company  cannot make such payment in cash,  the
Company's  shareholders  shall have the ability to exercise the rights specified
in (a) above.

          (ii) If the  Optionee is  terminated  for Cause,  the  Optionee  shall
receive,  at the  Company's  discretion,  payment in the form of cash or Company
notes; any such Company notes will bear interest,  payable  semi-annually,  at a
rate of prime  plus 1% per annum and shall  mature on the later of (A) the fifth
anniversary of the issuance  thereof and (B) the earliest date  permitted  under
the terms of any indebtedness of the Company or its subsidiaries  outstanding at
the time of such issuance.

          (iii) If the Optionee voluntarily terminates employment,  the Optionee
shall receive, at the Company's  discretion,  payment in the form of cash or 50%
in the form of cash and 50% in the form of Company notes; any such Company notes
will bear interest, payable semi-annually,  at a rate of prime plus 1% per annum
and shall mature on the later of (A) the fifth  anniversary  thereof and (B) the
earliest date permitted  under the terms of any  indebtedness  of the Company or
its subsidiaries outstanding at the time of such issuance; i) PROVIDED, HOWEVER,
that if the Optionee does not violate the  noncompete  provisions of the Manager
Stockholder's  Agreement,  the  note  shall be paid,  if  earlier  than the date
specified in the immediately  preceding  clause of this paragraph  (iii), at the
conclusion of the Noncompete  Period  (including  extensions) (as defined in the
Manager Stockholder's Agreement).

SECTION 5.4 - SHARES TO BE RESERVED

          The  Corporation  shall at all times  during  the term of the  Options
reserve and keep  available such number of shares of stock as will be sufficient
to satisfy the requirements of this Agreement.

SECTION 5.5 - NOTICES

          Any  notice  to be given  under  the  terms of this  Agreement  to the
Corporation shall be addressed to the Corporation in care of its Secretary,  and
any notice to be given to the Optionee  shall be addressed to him at the address
given beneath his signature  hereto.  By a notice given pursuant to this Section
5.5, either party may hereafter  designate a different address for notices to be
given to him. Any notice which is required to be given to the Optionee shall, if
the  Optionee  is  then   deceased,   be  given  to  the   Optionee's   personal
representative if such representative has previously informed the Corporation of
his status and address by written  notice  under this  Section  5.5.  Any notice
shall have been deemed  duly given three days after the date when  enclosed in a
properly  seated  envelope  or  wrapper  addressed  as  aforesaid  and  sent via
certified or registered mail, return receipt requested.

SECTION 5.6 - TITLES

          Titles are provided herein for  convenience  only and are not to serve
as a basis for interpretation or construction of this Agreement.




                                                                              11

SECTION 5.7 - APPLICABILITY OF PLAN AND MANAGER STOCKHOLDER'S AGREEMENT

          The Option and the shares of Common Stock issued to the Optionee  upon
exercise of the Options  shall be subject to all of the terms and  provisions of
the Plan and the Manager  Stockholder's  Agreement,  to the extent applicable to
the Options and such shares. In the event of any conflict between this Agreement
and the Plan, the terms of the Plan shall control.  In the event of any conflict
between this Agreement and the employment agreement, if any, between the Company
and the Optionee, the terms of the employment agreement shall control; provided,
that such employment agreement, and any amendments thereto, has been approved by
the Committee.  In the event of any conflict  between this Agreement or the Plan
and the Manager Stockholder's  Agreement, the terms of the Manager Stockholder's
Agreement shall control.

SECTION 5.8 - AMENDMENT

          This  Agreement  may be  amended  only by a  writing  executed  by the
parties hereto which specifically states that it is amending this Agreement.

SECTION 5.9 - GOVERNING LAW

          The laws of the State of New York  shall  govern  the  interpretation,
validity and  performance of the terms of this  Agreement  regardless of the law
that might be applied under principles of conflicts of laws.

SECTION 5.10 - JURISDICTION

          Any suit,  action or  proceeding  against the Optionee with respect to
this Agreement,  or any judgment entered by any court in respect of any thereof,
may be brought in any court of competent  jurisdiction in the State of New York,
and the Optionee hereby submits to the non-exclusive jurisdiction of such courts
for the purpose of any such suit, action,  proceeding or judgment.  The Optionee
hereby  irrevocably  waives any objections which he may now or hereafter have to
the  laying of the venue of any suit,  action or  proceeding  arising  out of or
relating to this Agreement brought in any court of competent jurisdiction in the
State of New York, and hereby further irrevocably waives any claim that any such
suit,  action or  proceeding  brought in any such court has been  brought in any
inconvenient  forum. No suit, action or proceeding  against the Corporation with
respect to this Agreement may be brought in any court,  domestic or foreign,  or
before  any  similar  domestic  or  foreign  authority  other than in a court of
competent  jurisdiction  in the  State  of New  York,  and the  Optionee  hereby
irrevocably  waives any right which he may  otherwise  have had to bring such an
action in any other court,  domestic or foreign,  or before any similar domestic
or foreign authority. The Corporation hereby submits to the jurisdiction of such
courts for the purpose of any such suit,  action or  proceeding.

SECTION 5.11 - CANCELLATION OF KMC TELECOM, INC. OPTIONS

          The  Optionee  hereby  agrees,  that in  consideration  of the Options
granted hereunder,  that any and all options granted to the Optionee pursuant to
the 1996 Stock  Purchase and Option Plan for Key Employees of KMC Telecom,  Inc.
and  Affiliates  shall  become  null and void  and of no  force or  effect  upon
approval of the Plan by the stockholders of the Company.

          IN WITNESS WHEREOF,  this Agreement has been executed and delivered by
the parties hereto.

                                               KMC TELECOM HOLDINGS, INC.



                                               By ______________________________
                                                  Name:
                                                  Title:




                                                                              12





                                           
                                           Aggregate number of shares of Common
                                           Stock for which the Option granted
- - ---------------------------------          hereunder is exercisable:
           Optionee                        
- - ---------------------------------          ------------------ 
                                            

- - ---------------------------------
            Address



Optionee's Taxpayer
Identification Number:


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




                                                                       EXHIBIT A
                                                                       ---------
                         MANAGER STOCKHOLDER'S AGREEMENT

          This Manager  Stockholder's  Agreement  (this  "Agreement") is entered
into as of ____________ __, 199_ between KMC Telecom Holdings,  Inc., a Delaware
corporation  (the  "COMPANY") , (the  "Manager"),  Nassau Capital  Partners L.P.
("Nassau  Capital"),  NAS  Partners I L.L.C.  ("NAS" and,  together  with Nassau
Capital, "Nassau") and Harold N. Kamine ("HNK")


                                    RECITALS

          The Company has  established  the 1998 Stock  Purchase and Option Plan
for Key  Employees  of KMC Telecom  Holdings,  Inc. and  Affiliates  (the Option
Plan"),  providing for, among other things, the grant of options  ("Options") to
purchase  Common  Stock,  par value  $.01 per  share,  of the  Company  ("Common
Stock").

          Effective  as of the date hereof,  the Company is granting  Options to
the  Manager,  certain of which  ("Replacement  Options")  are being  granted in
replacement of options ("Predecessor Options") to purchase Class C Common Stock,
par  value  $.01 per  share,  of KMC  Telecom,  Inc.  ("KMC"),  a  wholly  owned
subsidiary  of the  Company,  heretofore  granted to the Manager  under the 1996
Stock  Purchase  and  Option  Plan of KMC  Telecom,  Inc.  and  Affiliates  (the
"Predecessor Plan") .

          The Company also is granting,  or will grant, Options to certain other
individuals  who are or will be key employees or directors of, or persons having
a unique relationship with, the Company or one of its affiliates  (collectively,
the "Other  Managers") , each of whom is entering  into,  or will enter into, an
agreement  substantially  in the  form of this  Agreement  (the  "Other  Manager
Agreements").

          The  Company  is a  party  to an  Amended  and  Restated  Stockholders
Agreement  dated as of  October  31,  1997 (as  amended  from time to time,  the
"Stockholders  Agreement")  with  certain  stockholders  of  the  Company  (such
stockholders as are, from time to time,  parties to the  Stockholders  Agreement
being referred to collectively as the "Existing Stockholders").

          The Company also is a party to a Warrant Registration Rights Agreement
dated as of January 26, 1998 (as amended or supplemented  from time to time, the
"Registration  Rights  Agreement")  with  Morgan  Stanley  &  Co.  Incorporated,
pursuant to which the Company has  granted  certain  registration  rights to the
record  holders of the warrants to purchase  shares of Common Stock  referred to
therein (the "Warrants") and the holders of Stock (or other securities) received
upon exercise thereof (the "Warrant Holders").


                                                                               2


          The Company and the Manager wish to make  provision  for certain terms
of ownership of Capital Stock (as herein  defined) by the Manager as a result of
the exercise of Options,  Consistent  with the Company's  obligations  under the
Stockholders Agreement and the Registration Rights Agreement.

          Accordingly, the parties hereto agree as follows:

          1.  DEFINITIONS.  As used herein,  the following  terms shall have the
following meanings:

          "ACT" shall have the meaning ascribed to such term in section 2(a).

          "AFFILIATE"  shall mean,  with respect to the  Company,  any person or
entity  directly  or  indirectly  controlling,  controlled  by, or under  common
control with, the Company,  and/or any other person or entity  designated by the
Board of Directors  of the Company in which the Company or an  Affiliate  has an
interest.

          "BUYOUT  NOTICE"  shall  have the  meaning  ascribed  to such  term in
Section 5.

          "CAPITAL  STOCK" shall mean capital stock,  share capital and/or other
equity participations of the Company, including, without limitation, partnership
interests,  and/or conversion privileges,  warrants, options and/or other rights
to acquire such capital stock, share capital and/or other equity participations.

          "CAUSE"  shall mean,  except if such term or a similar term is defined
in an employment  agreement  between the Company and the Manager,  in which case
such employment agreement definition shall apply in lieu of this definition, (a)
the commission of an act of fraud or  embezzlement  (including the  unauthorized
disclosure of confidential  or proprietary  information of the Company or any of
its  subsidiaries  which results in financial  loss to the Company or any of its
Affiliates),  (b) the  conviction  of a felony,  (c)  willful  misconduct  as an
employee of the Company or any of its Affiliates  which is reasonably  likely to
result  in  material  injury  or  financial  loss to the  Company  or any of its
Affiliates or (d) the willful  failure to render  services to the Company or any
of its  Affiliates in accordance  with the  Manager's  employment  which failure
amounts to a material  neglect of duties to the Company or any of its Affiliates
that is not corrected by the Manager, to the satisfaction of the Company, in its
sole  discretion,  within 30 days after the Company  provides  the manager  with
written notice of its intention to terminate the Manager's  employment for Cause
by virtue of this clause (d). Any  voluntary  termination  of  employment by the
Manager (i) within 40 days after having  received the written notice provided in
clause (d) above or (ii) after the Company  first has reason to believe that the
Manager  has  committed  a felony and before  any final  judicial  determination
regarding  such  felony  shall be deemed to be a  termination  of the  Manager's
employment by the Company for Cause.


                                                                               3

          "COMMON  STOCK"  shall have the  meaning  ascribed to such term in the
Recitals of this Agreement.

          "COMMON STOCK  EQUIVALENTS"  means any security or obligation which is
by its terms convertible into shares of Common Stock and any option,  warrant or
other subscription or purchase right with respect to Common Stock.

          "COMPANY"  shall  have  the  meaning  ascribed  to  such  term  in the
introductory paragraph of this Agreement.

          "CUSTODY  AGREEMENT  AND POWER OF  ATTORNEY"  shall  have the  meaning
ascribed to such term in Section 9.

          "DEFAULT" shall mean an event of default or an event that, with notice
or  lapse  of time  or  both,  would  become  an  event  of  default  under  any
indebtedness for borrowed money of the Company or any of its subsidiaries.

          "EXCHANGE ACT" shall have the meaning ascribed to such term in Section
8 (b).
          "EXISTING  STOCKHOLDERS"  shall have the meaning ascribed to such term
in the Recitals of this Agreement.

          "FULLY DILUTED" or "FULLY DILUTED BASIS" shall mean, at any date as of
which the number of shares of Common Stock is to be  determined,  such number of
shares  determined  on  a  basis  that  includes  all  shares  of  Common  Stock
outstanding  at such date and the  maximum  shares of Common  Stock  issuable in
respect  of  Common  Stock  Equivalents  (giving  effect  to  the  then  current
respective  conversion  prices)  and  other  rights  to  purchase  (directly  or
indirectly) shares of Common Stock or Common Stock  Equivalents,  outstanding on
such  date,  whether  or not  such  rights  to  convert,  exchange  or  exercise
thereunder are presently exercisable.

          "GRANT  DATE"  shall mean the date that  Options  were  granted to the
Manager or, if earlier,  the date the Manager's  employment  with the Company or
any of its Affiliates began, but in no event earlier than January 1, 1995.

          "HNK" shall have the meaning ascribed to such term in the introductory
paragraph of this Agreement.

          "KMC" shall have the meaning  ascribed to such term in the Recitals of
this Agreement.


                                                                               4


          "MANAGEMENT GROUP" shall mean the Manager and the Other Managers.

          "MANAGER"  shall  have  the  meaning  ascribed  to  such  term  in the
introductory paragraph of this Agreement.

          "MANAGER  AGREEMENTS"  shall mean this Agreement and the other Manager
Agreements.

          "MANAGER'S  ESTATE"  shall have the  meaning  ascribed to such term in
Section 2.

          "NAS" shall have the meaning ascribed to such term in the introductory
paragraph of this Agreement.

          "NASSAU"  shall  have  the  meaning  ascribed  to  such  term  in  the
introductory paragraph of this Agreement.

          "NASSAU  CAPITAL" shall have the meaning  ascribed to such term in the
introductory paragraph of this Agreement.

          "NONCOMPETE  EXTENSION PERIOD" shall have the meaning ascribed to such
term in Section 23.

          "NONCOMPETE  PERIOD"  shall have the meaning  ascribed to such term in
Section 23.

          "OPTION  PLAN"  shall have the  meaning  ascribed  to such term in the
Recitals of this Agreement.

          "OPTIONS" shall have the meaning ascribed to such term in the Recitals
of this Agreement.

          "OTHER  MANAGER  AGREEMENTS"  shall have the meaning  ascribed to such
term in the Recitals of this Agreement.

          "OTHER  MANAGERS" shall have the meaning  ascribed to such term in the
Recitals of this Agreement.

          "PREDECESSOR  OPTIONS" shall have the meaning ascribed to such term in
the Recitals of this Agreement.

          "PREDECESSOR PLAN" shall have the meaning ascribed to such term in the
Recitals of this Agreement.

          "PRIME RATE" shall mean the prime rate of interest as indicated,  from
time to time, in the Money Tables section of THE WALL STREET JOURNAL.

          "PRINCIPAL  BUSINESS  ACTIVITIES"  shall have the meaning  ascribed to
such term in Section 23.


                                                                               5


          "PRINCIPAL HOLDERS" shall mean,  collectively,  Nassau and HNK (to the
extent participating in a transaction described in Section 4).

          "PUBLIC  OFFERING"  shall  mean an  offer  for  sale of  Common  Stock
pursuant to an effective registration statement filed under the Act.

          "QUALIFIED  PUBLIC  OFFERING"  shall mean the first  offer for sale of
Common  Stock,  in any single  transaction  or series of  related  transactions,
pursuant to an effective  registration  statement filed by the Company under the
1933  Act in  which  the  Company  receives  aggregate  gross  proceeds  (before
deduction  of  underwriting   discounts  and  expenses  of  sale)  of  at  least
$40,000,000, provided that, the price per share at which such shares are sold in
the offering (before  deduction of underwriting  discounts and expenses of sale)
is at least  four (4)  times  the  Conversion  Price of the  Company's  Series A
Convertible Preferred Stock which would then be in effect if determined pursuant
to the terms of the Series A Convertible Preferred Stock in effect as of October
31, 1997, whether or not any shares of such stock are then outstanding (it being
acknowledged  that, as of May 31., 1998,  such  Conversion  Price was $20.63 per
share).

          "REGISTRABLE  MANAGEMENT  SECURITIES"  shall  mean  (i)  Common  Stock
comprising  any portion of the Stock;  (ii) any Common  Stock owned by the Other
Managers;  and  (iii) any  shares  of  Capital  Stock of the  Company  issued or
issuable with respect to the Common Stock referred to in clauses (i) and (ii) by
way of a stock  dividend or stock split or in connection  with a combination  of
shares, recapitalization,  merger, consolidation or other reorganization.  As to
any particular Registrable  Management  Securities,  once issued such securities
shall cease to be Registrable  Management  Securities  when (i) such  securities
shall have been  registered  under the Act and the  registration  statement with
respect to the sale of such securities shall have become effective under the Act
and such  securities  sold  thereunder or such  securities  shall have been sold
under  circumstances  in which  all  applicable  conditions  of Rule 144 (or any
similar  provision  then in force) under the Act are met or may be sold pursuant
to Rule 144(k), (ii) such securities shall have been otherwise transferred,  new
certificates  for them not bearing a legend  restricting  further transfer shall
have been delivered by the Company and subsequent disposition of such securities
shall not require registration or qualification of such securities under the Act
or state  securities or blue sky laws then in force in a preponderance of states
or (iii) such securities shall cease to be outstanding.

          "RETIREMENT" shall mean the voluntary termination of employment by the
Manager  after the later of (i) having been employed by the Company for a period
of 5 years  following  the Grant Date or by an Affiliate for a period of 5 years
from the later of (a) January 1, 1995 or (b) the date the Manager first rendered
service to the Affiliate and (ii) the date on which the sum of (a) the Manager's
years of service  (calculated as in (i) above) and (b) the Manager's age, equals
or exceeds 65,  unless the  Compensation  Committee of the Board of Directors of
the Company shall have  provided,  prior to the Grant Date or  thereafter,  that
some other lesser age, period of service,  combination thereof or other terms or
conditions shall constitute "Retirement".


                                                                               6


          "SEC" shall have the meaning ascribed to such term in Section 8(b).

          "RULE  144" shall have the  meaning  ascribed  to such term in Section
2(c).

          "SERIES A CONVERTIBLE PREFERRED STOCK" shall mean the Company's Series
A Cumulative Convertible Preferred Stock, par value $.01 per share.

          "STOCK" shall mean all Capital Stock now owned or hereafter
acquired by the Manager pursuant to any Option.

          "STOCKHOLDERS  AGREEMENT" shall have the meaning ascribed to such term
in the Recitals of this Agreement.

          "SUBJECT  MATTER"  shall  have the  meaning  ascribed  to such term in
Section 23.

          "TAG-ALONG  NOTICE"  shall have the  meaning  ascribed to such term in
Section 4.

          "TAG-ALONG  PURCHASER" shall have the meaning ascribed to such term in
Section 4.

          "TAG-ALONG  SHARES"  shall have the  meaning  ascribed to such term in
Section 4.

          "THIRD PARTY  PURCHASER"  shall have the meaning ascribed to such term
in Section 5.

          2.  MANAGER'S REPRESENTATIONS, WARRANTIES AND AGREEMENTS.

          (a) Unless the shares of Common Stock to be acquired upon the exercise
of the Options are then registered under the Act (as hereinafter  defined):  the
manager hereby  represents  and warrants that the Manager will be acquiring,  at
the time of exercise  (or other  acquisition),  the Common Stock  issuable  upon
exercise of the Options (and any other Stock  acquired from time .to time by the
Manager) for investment for the Manager's own account and not with a view to, or
for resale in connection  with, the distribution or other  disposition  thereof.
The  Manager  agrees and  acknowledges  that the Manager  will not,  directly or
indirectly,  offer,  transfer,  sell, assign,  pledge,  hypothecate or otherwise
dispose of any  shares of the Stock  unless  such  transfer,  sale,  assignment,
pledge,  hypothecation or other disposition complies with this Agreement and all
applicable  provisions  of state  securities  laws and (i) the  transfer,  sale,
assignment,  pledge,  hypothecation  or  other  disposition  is  pursuant  to an
effective  registration  statement under the Securities Act of 1933, as amended,
and the  rules and  regulations  in effect  thereunder  (the  "Act") or (ii) (A)
counsel  for  the  manager  (which  may be the  Company's  counsel)  shall  have
furnished  the Company  with an  opinion,  reasonably  satisfactory  in form and
substance to the Company,  that no such  registration is required because of the
availability  of an  exemption  from  registration  under the Act and (B) if the
Manager is a citizen or resident of any country other than the United States, or
the Manager desires to effect any such transaction in any such country,  counsel
for the Manager  (which may be the Company's  counsel)  shall have furnished the


                                                                               7


Company with an opinion,  reasonably  satisfactory  in form and substance to the
Company,  that  such  transaction  will not  violate  the laws of such  country.
Notwithstanding the foregoing,  the Company  acknowledges and agrees that any of
the following  transfers  are deemed to be in  compliance  with the Act and this
Agreement and no opinion of counsel is required in connection  therewith:  (x) a
transfer  made  pursuant  to Section 4, 5 or 6 hereof;  (y) a transfer  upon the
death of the Manager to the Manager's  executors,  administrators,  testamentary
trustees,  legatees or beneficiaries  (the "Manager's  Estate") or a transfer to
the executors, administrators,  testamentary trustees, legatees or beneficiaries
of a person  who has  become a holder of Stock in  accordance  with the terms of
this Agreement,  provided that prior to any such transfer the transferee  agrees
in a  writing  reasonably  satisfactory  to  the  Company  to be  bound  by  the
provisions of this Agreement to the same extent as if such  transferee  were the
Manager;  and (z) a transfer made in compliance with the federal securities laws
to a trust or  custodianship  the  beneficiaries  of which may include  only the
Manager,  the  Manager's  spouse  and/or the  Manager's  lineal  descendants  (a
"Manager's Trust").

          (b) The certificate  (or  certificates)  representing  the Stock shall
bear the following legend:

          "THE  SHARES  REPRESENTED  BY  THIS  CERTIFICATE  MAY  NOT  BE
          TRANSFERRED,   SOLD,   ASSIGNED,   PLEDGED,   HYPOTHECATED  OR
          OTHERWISE DISPOSED OF UNLESS SUCH TRANSFER,  SALE, ASSIGNMENT,
          PLEDGE,  HYPOTHECATION OR OTHER DISPOSITION  COMPLIES WITH THE
          PROVISIONS OF THE MANAGER STOCKHOLDER'S  AGREEMENT DATED AS OF
          _____________  ____, 199__ BETWEEN KMC TELECOM HOLDINGS,  INC.
          ("THE  COMPANY")  AND  __________________________  (A  COPY OF
          WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY). EXCEPT AS
          OTHERWISE  PROVIDED  IN SUCH  AGREEMENT,  NO  TRANSFER,  SALE,
          ASSIGNMENT,  PLEDGE, HYPOTHECATION OR OTHER DISPOSITION OF THE
          SHARES  REPRESENTED BY THIS  CERTIFICATE MAY BE MADE EXCEPT IN
          COMPLIANCE WITH ALL APPLICABLE  PROVISIONS OF STATE SECURITIES
          LAWS AND (A) PURSUANT TO AN EFFECTIVE  REGISTRATION  STATEMENT
          UNDER THE  SECURITIES  ACT OF 1933, AS AMENDED,  AND THE RULES
          AND REGULATIONS IN EFFECT THEREUNDER (THE "ACT") OR (B) IF (I)
          THE COMPANY HAS BEEN FURNISHED WITH A SATISFACTORY  OPINION OF
          COUNSEL FOR THE HOLDER  ACCEPTABLE  TO THE  COMPANY  THAT SUCH
          TRANSFER,  SALE,  ASSIGNMENT,  PLEDGE,  HYPOTHECATION OR OTHER
          DISPOSITION  IS EXEMPT FROM THE PROVISIONS OF SECTION 5 OF THE
          ACT AND (II) IF THE  HOLDER IS A CITIZEN  OR  RESIDENT  OF ANY
          COUNTRY OTHER THAN THE UNITED STATES, OR THE HOLDER DESIRES TO
          EFFECT ANY SUCH  TRANSACTION IN ANY SUCH COUNTRY,  THE COMPANY
          HAS BEEN FURNISHED WITH A SATISFACTORY  OPINION OF COUNSEL FOR
          THE HOLDER  ACCEPTABLE  TO THE COMPANY  THAT SUCH  TRANSACTION
          WILL NOT VIOLATE THE LAWS OF SUCH COUNTRY."


                                                                               8


          (c) Unless the Stock is then  registered  under the Act,  the  Manager
acknowledges  that the Manager has been  advised that (i) the Stock has not been
registered  under the Act,  (ii) the  Stock  must be held  indefinitely  and the
Manager must continue to bear the economic  risk of the  investment in the Stock
unless the Stock is subsequently  registered  under the Act or an exemption from
such  registration  is available and the Stock is disposed of in accordance with
this Agreement, (iii) it is not anticipated that there will be any public market
for the  Stock,  (iv) Rule 144  promulgated  under the Act  ("Rule  144") is not
currently  available with respect to the sales of any securities of the Company,
and the Company has made no covenant to make such Rule  available,  (v) when and
if shares of the Stock may be  disposed of without  registration  in reliance on
Rule 144,  such  disposition  can be made only in limited  amounts in accordance
with the terms and  conditions  of such Rule,  (vi) if the Rule 144 exemption is
not available,  public sale without  registration  will require  compliance with
Regulation A or some other exemption  under the Act, (vii) a restrictive  legend
in  the  form  heretofore  set  forth  shall  be  placed  on  the   certificates
representing  the Stock and (viii) a notation  shall be made in the  appropriate
records of the Company  indicating  that the Stock is subject to  restriction on
transfer  and,  if the  Company  should at some time in the  future  engage  the
services of a stock transfer agent,  appropriate stop transfer restrictions will
be issued to such transfer agent with respect to the Stock.

          (d) If any  shares of the Stock are to be  disposed  of in  accordance
with an exemption from  registration  under the Act (other than pursuant to Rule
144), the Manager shall promptly notify the Company of such intended disposition
and shall  deliver to the  company  at or prior to the time of such  disposition
such documentation as the Company may reasonably request in connection with such
sale and, in the case of a  disposition  pursuant to Rule 144,  shall deliver to
the Company an executed copy of any notice on Form 144 required to be filed with
the Securities and Exchange Commission.

          (e) The  Manager  agrees  that,  if any  shares of  Capital  Stock are
offered to the public pursuant to an effective  registration statement under the
Act, the Manager will not effect any public sale or  distribution  of any shares
of Stock not  covered  by such  registration  statement  during  any  period (i)
required  by the  managing  underwriter  and  (ii)  agreed  to by  the  Existing
Stockholders with respect to their shares of Capital Stock.

          (f) The Manager  represents and warrants that the Manager has received
and reviewed a copy of the Company's Prospectus dated July 13, 1998; the Manager
further  represents and warrants that the Manager has been given the opportunity
to obtain any  information or documents and to ask questions and receive answers
about such documents,  the Company and the business and prospects of the Company
which the Manager  deems  necessary to evaluate the merits and risks  related to
the Manager's  investment in the Stock and to verify the information received as
indicated  in this  Section  2(f),  and the  Manager  has relied  solely on such
information.



                                                                               9


          (g) The Manager further represents and warrants that (i) the Manager's
financial  condition  is such that the Manager  can afford to bear the  economic
risk of  holding  the Stock for an  indefinite  period of time and has  adequate
means for providing for the Manager's current needs and personal  contingencies,
(ii)  the  Manager  can  afford  to  suffer  a  complete  loss of the  Manager's
investment in the Stock, (iii) all information which the manager has provided to
the  Company  concerning  the Manager and the  Manager's  financial  position is
correct  and  complete  as of the  date  of this  Agreement,  (iv)  the  Manager
understands and has taken cognizance of all risk factors related to the purchase
of the Stock,  and (v) the Manager's  knowledge and  experience in financial and
business  matters are such that the Manager is capable of evaluating  the merits
and  risks  of the  Manager's  purchase  of the  Stock as  contemplated  by this
Agreement.

          3.  RESTRICTION ON TRANSFER.

          The Manager agrees that sell, assign, pledge, hypothecate options. The
Manager agrees that sell,  assign,  pledge,  hypothecate  shares of Stock at any
time  prior the  Manager  will not  transfer,  or  otherwise  dispose of any the
Manager will not transfer,  or otherwise  dispose of any to  registration of the
sale of such shares of Stock, except for: (a) transfers permitted by clauses (x)
, (y) and (z) of Section 2 (a); (b) a sale of shares of Capital  Stock  pursuant
to an effective  registration  statement under the Act filed by the Company; and
(c) a sale of shares of Stock pursuant to Rule 144 (if then available) following
the lapse of the  Company's  right to  purchase  such  shares of Stock under the
circumstances  referred  to in  Section  6. No  transfer  of any such  shares in
violation  hereof  shall be made or recorded on the books of the Company and any
such transfer  shall be void and of no effect.

          4.  TAG-ALONG RIGHT.

          (a) If the Principal  Holders  intend to transfer (in a transaction in
which  each  of  the   Principal   Holders  that  then  owns  Capital  Stock  is
participating)  to  any  third  party  (the  "TAG-ALONG  PURCHASER")  ,  in  one
transaction or a series of related transactions  (excluding securities offerings
registered  under  the Act) ,  shares  of  Capital  Stock  constituting,  in the
aggregate,  more than 20% of the total  number  of shares of Common  Stock  then
outstanding  on a Fully Diluted Basis (in the first instance of such a transfer)
, then the Principal  Holders shall permit each member of the Management  Group,
at such member's option,  to transfer,  for the same  consideration,  and on the
same terms and  conditions,  if any, upon which the Principal  Holders intend to
transfer  such  shares,  a number of shares of Common  Stock  (including  shares
subject to then exercisable  Options and Options that will become exercisable as
a result  of such  transaction  or series of  transactions)  then  owned by such
member of the Management  Group  determined in accordance with this Section 4(a)
(the "INITIAL  TAG-ALONG  SHARES") . Each member of the  Management  Group shall
have the right,  pursuant to this Section 4(a), to sell pursuant to the offer by
the Tag-Along  Purchaser,  a percentage of the shares of Common Stock (including
shares  subject to then  exercisable  options)  held by such member equal to the
Applicable Percentage.



                                                                              10


          (b)  For  purposes  hereof,  the  "APPLICABLE   PERCENTAGE"  shall  be
determined as follows:

         (i)  if  such  transaction  or  series  of  related  transactions
    constitutes  the first instance in which the rights under Section 4(a)
    apply,  the Applicable  Percentage shall be equal to the percentage of
    the  holdings  of  Capital  Stock  (on a Fully  Diluted  Basis)  being
    transferred in such  transaction or series of related  transactions by
    the  Principal  Holder  transferring  the  smaller  percentage  of its
    aggregate  holdings  of  Capital  Stock  (the  "APPLICABLE   HOLDER");
    provided that the Applicable Percentage shall be zero if the number of
    shares  proposed to be  transferred  in such  transaction or series of
    related  transactions by the Principal  Holders in the aggregate (when
    combined with all prior  transactions  or series of  transactions of a
    type to which  Section  4(a)  applies) is not greater  than 20% of the
    total number of shares of Common Stock  outstanding on a Fully Diluted
    Basis;

         (ii) if such transaction or series of related  transactions  does
    not  constitute  the first  instance in which the rights under Section
    4(a) apply, the Applicable Percentage shall be equal to the percentage
    of the  holdings of Capital  Stock (on a Fully  Diluted  Basis)  being
    transferred in such  transaction or series of related  transactions by
    the Applicable Holder;  provided that the Applicable  Percentage shall
    be zero if the percentage of the moldings of Capital Stock (on a Fully
    Diluted  Basis) being  transferred  in such  transaction  or series of
    related transactions by the Applicable Holder is not greater than five
    percent.

          (c) Not less than 15  Business  Days  prior to any  proposed  transfer
pursuant to this Section 4, the  Principal  Holders shall deliver to each member
of the Management Group written notice thereof (the "TAG-ALONG  NOTICE") , which
notice shall set forth the  consideration to be paid by the Tag-Along  Purchaser
and the other terms and conditions,  if any, of such transaction.  If any member
of the Management  Group elects to transfer some or all of the Tag-Along  Shares
pursuant  to this  Section 4, then such  member  shall so notify  the  Principal
Holders within 10 Business Days after the date of the Tag-Along Notice,  and, at
the  Principal  Holders'  request not less than two  Business  Days prior to the
proposed transfer,  such member of the Management Group shall deliver to counsel
to the Principal Holders, to be held in escrow,  certificates  representing such
Tag-Along Shares (and/or other appropriate  documentation to permit the exercise
of Options),  duly  endorsed or with duly  completed  and executed  stock powers
attached, in proper form for transfer, together with a limited power-of-attorney
authorizing  the  Principal  Holders to  transfer  the  Tag-Along  Shares to the
Tag-Along  Purchaser (in  accordance  with the terms and conditions set forth in
the Tag Along Notice) and to execute all other documents required to be executed
in connection with such transaction.

          (d) If,  within 90  Business  Days after  delivery  by a member of the
Management  Group to the  Principal  Holders  of the  certificates  and  related
documents  described  in  paragraph  (c) , no  transfer  of  shares  held by the
Principal Holders and Tag-Along Shares in accordance with the provisions of this
Section 4 shall have been completed,  or if earlier the Principal  Holders shall
determine not to proceed with such transfer, then the Principal Holders' counsel
shall promptly  return to the members of the Management  Group,  in proper form,
all   certificates   representing   the   Tag-Along   Shares  and  the   limited
power-of-attorney previously delivered by the members of the Management Group to
the Principal Holders.



                                                                              11


          (e)  Concurrently  with  the  consummation  of  the  transfer  of  the
Tag-Along  Shares pursuant to this Section 4, the Principal  Holders shall remit
or cause to be remitted to each member of the Management Group the consideration
with respect to the Tag-Along Shares so transferred and shall furnish such other
evidence of the  completion  of such transfer and the terms and  conditions  (if
any) thereof as may  reasonably  be  requested by such member of the  Management
Group.

          (f)  The  provisions  of  this  Section  4  shall  remain  in  effect,
notwithstanding  any return to any member of the  Management  Group of Tag-Along
Shares as provided herein.

          5.  BRING ALONG RIGHT.

          If the Company or one or more of the Existing  Stockholders receives a
bona fide offer from a person or persons not then an Affiliate or  Affiliates (a
"Third Party Purchaser") to purchase Capital Stock representing more than 50% of
the total number of shares of Common Stock then  outstanding  on a Fully Diluted
Basis,  then the  Company  shall have the right to  deliver a written  notice (a
"Buyout  Notice") to the Manager  which shall state (i) that the Company or such
Existing  Stockholders  propose to effect such  transaction,  (ii) the  proposed
purchase  price  per  share  of  Capital  Stock  to be paid by the  Third  Party
Purchaser,  and (iii) the name or names of the Third Party Purchaser,  and which
attaches  a  copy  of  all  writings   between  the  Company  or  such  Existing
Stockholders  and the other parties to such  transaction  necessary to establish
the terms of such transaction. The manager agrees that, upon receipt of a Buyout
Notice,  the Manager  shall be obligated to sell a percentage  of the  Manager's
shares of Stock equal to the Bring Along  Percentage (as defined below) upon the
terms and  conditions  of such  transaction  (and  otherwise  take all necessary
action to cause consummation of the proposed  transaction);  PROVIDED,  HOWEVER,
that the Manager shall only be obligated as provided  above in this Section 5 if
(i) more than 50% of the total number of shares of Common Stock then outstanding
on a Fully Diluted Basis actually is sold to the Third Party Purchaser  pursuant
to the terms contained in the Buyout Notice,  (ii) the manager receives the same
per share (or per share equivalent)  consideration as such Existing Stockholders
receive in the transaction and (iii) the  consideration  received by the Manager
is in the form of cash or a combination of cash and securities  that will become
freely tradable in the public  securities  markets within 180 days of receipt of
such  consideration  by the  Manager.  The Bring Along  Percentage  shall be the
percentage of the total number of shares of Common Stock  outstanding on a Fully
Diluted Basis that is actually sold to the Third Party Purchaser pursuant to the
terms  contained in the Buyout Notice;  provided that if, after giving effect to
such sale, the Existing  Stockholders  would own not more than twenty percent of
the  fully-diluted  common  equity  interests  in the  Company,  the Bring Along
Percentage shall be one hundred percent.

          6.  THE  COMPANY'S  OPTION TO REPURCHASE  CAPITAL STOCK AND OPTIONS OF
              MANAGER.

          If the Manager's active employment with the Company and its affiliates
is  terminated  for any reason  whatsoever,  the Company shall have the right to
purchase  shares of Stock then held by the Manager,  the  manager's  Estate or a
Manager's  Trust,  and  make  provision  with  respect  to  the  termination  or
cancellation of all Options and payments in respect thereof,  all as provided in
accordance with the terms of the Option Plan and any option agreements  executed
and delivered thereunder.

          7.  CANCELLATION OF PREDECESSOR OPTIONS.

          In  further  consideration  of the  transactions  contemplated  hereby
(including,  without  limitation,  the grant of the options) the Manager  hereby
agrees that all of the Manager's  Predecessor  options (together with any right,
title or  interest  of the  Manager in or to any other  grant or award under the
Predecessor  Plan) shall be  automatically  cancelled and of no further force or
effect,  without further action by any party hereto,  at such time as the Option
Plan,  the initial  grant of options to the Manager and this  Agreement are duly
approved by the  affirmative  vote of holders of Capital  Stock then entitled to
cast a majority of the votes entitled to be cast by all holders of Capital Stock
then outstanding.



                                                                              12


          8. THE COMPANY'S REPRESENTATIONS, WARRANTIES AND AGREEMENTS.

          (a) The Company  represents  and  warrants  to the  Manager  that this
Agreement has been duly authorized, executed and delivered by the Company.

          (b) After the Company consummates an initial Public offering,  (i) the
Company shall diligently use reasonable  efforts to register the options and the
Common  Stock to be  acquired  on  exercise  thereof on a Form S-8  Registration
Statement or any successor to Form S-8 to the extent that such  registration  is
then  available  with  respect to such  Options  and  Common  Stock and (ii) the
Company  will file the reports  required to be filed by it under the Act and the
Securities  Exchange Act of 1934, as amended (the "Exchange Act"), and the rules
and  regulations  adopted by the  securities  and  Exchange  Commission  ("SEC")
thereunder,  to the extent  required  from time to time to enable the Manager to
sell  shares of Common  Stock  without  registration  under the Act  within  the
limitations  of the  exemptions  provided by (A) Rule 144 under the Act, as such
Rule may be amended  from time to time,  or (B) any similar  rule or  regulation
hereafter adopted by the SEC. Notwithstanding anything contained in this Section
9(b), the Company may  deregister  under Section 12 of the Exchange Act if it is
then  permitted  to do so  pursuant  to the  Exchange  Act  and  the  rules  and
regulations thereunder. Nothing in this Section 8(b) shall be deemed to limit in
any manner the restrictions on sales of Stock contained in this Agreement.

          9.  "PIGGYBACK" REGISTRATION RIGHTS.

          (a)  Whenever  the  Company  proposes  to  register  any of its equity
securities  (including,  without  limitation,  the Common  Stock)  under the Act
(other  than  pursuant  to a  registration  statement  on Form S-8 or S-4 or any
successor  forms),  and the  form  used  may be used  for  the  registration  of
Registrable Management Securities (a "Piggyback Registration"), the Company will
give  prompt  written  notice to all  members of the  Management  Group  holding
Registrable  Management Securities of its intent to effect such registration and
(subject  to the  further  provisions  of this  Section 9) will  include in such
registration  all  Registrable  Management  Securities with respect to which the
Company has received requests for inclusion therein within 20 days after receipt
of the Company's notice.

          (b)  The  Registration   Expenses  (as  defined  in  the  Stockholders
Agreement) of the holders of Registrable  Management  Securities will be paid by
the Company in all Piggyback Registrations.

          (c)  If  a  Piggyback   Registration   is  an   underwritten   primary
registration  on  behalf  of the  Company,  the  Company  will  include  in such
registration all Registrable  Management  Securities requested to be included in
such  registration;  provided,  that if the  managing  underwriters  advise  the
Company in writing that in their opinion the number of  securities  requested to
be included in such  registration  exceeds the number  which can be sold in such
offering without  adversely  affecting the  marketability  of the offering,  the
Company will include in such  registration,  in the following order of priority,
(i) first,  the securities  the Company  proposes to sell,  (ii) second,  to the
extent  so  required  by the  provisions  of  the  Stockholders  Agreement,  the
registrable  securities  requested  to be included in such  registration  by the
Existing Stockholders,  (iii) third, to the extent so required by the provisions
of the Registration Rights Agreement, the registrable securities requested to be
included in such  registration  by the Warrant  Holders,  (iv)  fourth,  if such
Public  Offering is the initial Public  offering,  such  additional  registrable
securities  requested  to be  included  in  such  registration  by any  Existing
Stockholder  as may be required (in the  reasonable  estimation  of the managing
underwriters)  to  assure  that  the net  proceeds  of sale of such  registrable
securities  (when added to the net  proceeds of sale of  registrable  securities
subject  to the  priority  set  forth in  clause  (ii)  above)  are equal to the
aggregate  purchase price paid for all Capital Stock then owned by such Existing
Stockholder,  (v) fifth, the Registrable  Management  Securities requested to be
included  in such  registration,  the  registrable  securities  requested  to be
included in such  registration by the Existing  Stockholders  (to the extent not
then  subject to the priority set forth in clause (ii) or clause (iv) above) and
the registrable  securities requested to be included in such registration by the
Warrant  Holders (to the extent not then  subject to the  priority  set forth in
clause (iii) or clause (iv) above, pro rata among the holders of such securities
on the basis of the number  thereof  owned by each  holder and  requested  to be
included  therein and (vi) sixth,  other  securities,  if any,  requested  to be
included in such registration.



                                                                              13


         (d)  If  a  Piggyback   Registration  is  an  underwritten   secondary
registration  on  behalf  of the  Company,  the  Company  will  include  in such
registration all Registrable  Management  Securities requested to be included in
such  registration;  provided,  that if the  managing  underwriters  advise  the
Company in writing that in their opinion the number of  securities  requested to
be included in such  registration  exceeds the number  which can be sold in such
offering without  adversely  affecting the  marketability  of the offering,  the
Company will include in such  registration,  in the following order of priority,
(i) first,  to the extent so  required  by the  provisions  of the  Stockholders
Agreement,   the  registrable  securities  requested  to  be  included  in  such
registration  by the  Existing  Stockholders,  (ii)  second,  to the  extent  so
required by the provisions of the Registration Rights Agreement, the registrable
securities requested to be included in such registration by the Warrant Holders,
(iii)  third,  if such  Public  Offering is the initial  Public  offering,  such
additional  registrable securities requested to be included in such registration
by any Existing Stockholder as may be required (in the reasonable  estimation of
the  managing  underwriters)  to assure  that the net  proceeds  of sale of such
registrable  securities  (when added to the net proceeds of sale of  registrable
securities  subject to the  priority set forth in clause (i) above) are equal to
the  aggregate  purchase  price  paid for all  Capital  Stock then owned by such
Existing  Stockholder,   (iv)  fourth,  the  Registrable  Management  Securities
requested  to be  included  in such  registration,  the  registrable  securities
requested to be included in such  registration by the Existing  Stockholders (to
the extent not then  subject to the  priority  set forth in clause (i) or clause
(iii)  above) and the  registrable  securities  requested to be included in such
registration  by the  Warrant  Holders  (to the extent  not then  subject to the
priority  set forth in clause  (ii) or clause  (iii)  above,  pro rata among the
holders  of such  securities  on the basis of the number  thereof  owned by each
holder and requested to be included therein and (v) fifth, other securities,  if
any, requested to be included in such registration.

          (e) If any Piggyback  Registration  is an underwritten  offering,  the
investment   banker(s),   underwriters)  and  manager(s)  for  the  offering  or
distribution will be selected by the Company.

          (f) The  Manager  hereby  agrees  to be,  and any  Manager's  Trust or
Manager's  Estate  shall  be,  bound  by all of the  obligations  applicable  to
Existing Stockholders under Section 6 of the Stockholders Agreement.

          (g) In connection with the exercise of the Manager's rights under this
Section 9, the Manager will, if requested by the Company,  execute and deliver a
reasonable custody agreement and power of attorney with respect to the shares of
Stock to be registered pursuant to this Section 9 a "Custody Agreement and Power
of Attorney").  The Custody Agreement and Power of Attorney will provide,  among
other  things,  that the Manager will deliver to and deposit in custody with the
custodian  and  attorney-in-fact  named therein a  certificate  or  certificates
representing  such  shares of Stock (duly  endorsed  in blank by the  registered
owner or owners  thereof or  accompanied by duly executed stock powers in blank)
and  irrevocably  appoint said custodian and  attorney-in-fact  as the Manager's
agent  and  attorney-in-fact  to act under the  Custody  Agreement  and Power of
Attorney on the manager's behalf with respect to the matters specified therein.

          (h) The Manager  agrees that he will execute such other  agreements as
the  Company  may  reasonably  request to further  evidence  and  implement  the
provisions of this Section 9.



                                                                              14


          10. RIGHTS TO NEGOTIATE REPURCHASE PRICE.

          Nothing in this Agreement  shall be deemed to restrict or prohibit the
Company  from  purchasing  shares of  Capital  Stock or stock  options  from the
Manager, at any time, upon such terms and conditions, and for such price, as may
be mutually agreed upon between the parties  hereto,  whether or not at the time
of such purchase  circumstances  exist which  specifically grant the Company the
right to purchase shares of Stock or the Company has the right to pay the Option
Excess Price under the terms of this Agreement.

          11. BROKER LOAN PROGRAM.

          Following the initial  Public  Offering of Common  Stock,  the Company
will use reasonable efforts to assist in the establishment of a customary broker
loan program for the purpose of facilitating the exercise of Options.

          12. NOTICE OF CHANGE OF BENEFICIARY.

          Immediately  prior to any transfer of Stock to a manager's  Trust, the
Manager  shall provide the Company with a copy of the  instruments  creating the
Manager's  Trust and with the  identity of the  beneficiaries  of the  Manager's
Trust. The Manager shall notify the Company  immediately  prior to any change in
the identity of any beneficiary of the Manager's Trust.

          13. EXPIRATION OF CERTAIN PROVISIONS.

          The provisions  contained in Sections 4, 5 and 6 of this Agreement and
the portion of any other  provision of this  Agreement  which  incorporates  the
provisions of Sections 4, 5 and 6, shall terminate and be of no further force or
effect with respect to any shares of Stock sold by the Manager,  as permitted by
this Agreement,  either pursuant to an effective registration statement filed by
the Company  pursuant to Section 9 hereof or in accordance  with all  applicable
requirements of Rule 144.

          The  provisions  contained  in  Sections  2(e),  3, 4, 5 and 6 of this
Agreement,  and the  portion of any other  provisions  of this  Agreement  which
incorporate  the  provisions  of such  Sections,  shall  terminate  and be of no
further force or effect upon the consummation of a Qualified Public Offering.

          14. RECAPITALIZATIONS, ETC.

          The provisions of this Agreement  shall apply,  to the full extent set
forth  herein with respect to the Stock or the  options,  or any capital  stock,
partnership units or any other security  evidencing  ownership  interests in any
successor or assignee of the Company (whether by merger, consolidation,  sale of
assets or  otherwise)  which may be issued in respect  of, in  exchange  for, or
substitution  of Stock or  options,  by  reason of any  stock  dividend,  split,
reverse split,  combination,  recapitalization,  liquidation,  reclassification,
merger, consolidation or otherwise.

          15. MANAGER'S EMPLOYMENT BY THE COMPANY.

          Nothing  contained in this Agreement or in any other agreement entered
into by the Company and the  Manager,  contemporaneously  with the  execution of
this  Agreement (i) obligates the Company or any  subsidiary or Affiliate of the
Company to employ the Manager in any capacity  whatsoever  or (ii)  prohibits or
restricts the Company (or any such subsidiary or Affiliate) from terminating the
employment,  if any,  of the  Manager at any time or for any reason  whatsoever,
with or without  cause,  and the  Manager  hereby  acknowledges  and agrees that
neither  the  Company  nor any  other  person  has made any  representations  or
promises  whatsoever  to the Manager  concerning  the  Manager's  employment  or
continued employment by the Company.



                                                                              15


          16. STATE SECURITIES LAWS.

          The Company hereby agrees to use all reasonable efforts to comply with
all  state  securities  or "blue  sky" laws  which  might be  applicable  to the
issuance of the Options to the Manager.

          17. BINDING EFFECT.

          The provisions of this  Agreement  shall be binding upon and accrue to
the  benefit  of  the  parties  hereto  and  their   respective   heirs,   legal
representatives,  successors and assigns. In the case of a transferee  permitted
under  Section  2(a)  hereof,  such  transferee  shall  be  deemed  the  Manager
hereunder;  provided, however, that no transferee (including without limitation,
transferees  referred to in Section 2(a)  hereof)  shall derive any rights under
this Agreement  unless and until such  transferee has delivered to the Company a
valid  undertaking  and  becomes  bound  by the  terms  of this  Agreement.

          18. AMENDMENT.

          This Agreement may be-amended only by a written  instrument  signed by
the parties hereto.

          19. APPLICABLE LAW.

          The laws of the State of New York  applicable to contracts made and to
be performed therein shall govern the  interpretation,  validity and performance
of the terms of this  Agreement.  Any suit,  action or  proceeding  against  the
Manager, with respect to this Agreement, or any judgment entered by any court in
respect of any thereof, may be brought in an court of competent  jurisdiction in
the State of New York, as the Company may elect in its sole discretion,  and the
Manager hereby submits to the non-exclusive  jurisdiction of such courts for the
purpose of any such suit, action,  proceeding or judgment.  By the execution and
delivery of this Agreement,  the Manager appoints The Corporation  Trust Company
(or such other qualified  corporate agent as the Company may designate),  at its
office in New York,  New York as the  Manager's  agent upon which process may be
served in any such suit,  action or  proceeding.  Service  of process  upon such
agent,  together  with notice of such service given to the Manager in the manner
provided  in  Section  22  hereof,  shall be deemed in every  respect  effective
service of process upon him in any suit,  action or  proceeding.  Nothing herein
shall in any way be deemed to limit the ability of the Company to serve any such
writs,  process or summonses in any other manner  permitted by applicable law or
to obtain jurisdiction over the Manager, in such other jurisdictions and in such
manner,  as may be permitted by applicable  law. The Manager hereby  irrevocably
waives any objections  which the Manager may now or hereafter have to the laying
of the venue of any suit,  action or  proceeding  arising  out of or relating to
this Agreement  brought in any court of competent  jurisdiction  in the State of
New York,  and hereby further  irrevocably  waives any claim that any such suit,
action  or  proceeding  brought  in any  such  court  has  been  brought  in any
inconvenient  forum.  No suit,  action or  proceeding  against the Company  with
respect to this Agreement may be brought in any court,  domestic or foreign,  or
before  any  similar  domestic  or  foreign  authority  other than in a court of
competent  jurisdiction  in the  State  of New  York,  and  the  Manager  hereby
irrevocably  waives any right which the Manager may otherwise  have had to bring
such an action in any other  court,  domestic or foreign,  or before any similar
domestic or foreign authority. The Company hereby submits to the jurisdiction of
such courts for the purpose of any such suit, action or proceeding.


                                                                              16


          20. ASSIGNABILITY OF CERTAIN RIGHTS BY THE COMPANY.

          The Company shall have the right to assign any or all of its rights or
obligations to purchase  shares of Stock pursuant to the Option Plan and Section
6 hereof.

          21. MISCELLANEOUS.

          In this  Agreement  all  references  to  "dollars"  or $ are to United
States dollars.  If any provision of this Agreement  shall be declared  illegal,
void  or  unenforceable  by any  court  of  competent  jurisdiction,  the  other
provisions shall not be affected, but shall remain in full force and effect.

          22. NOTICES.

          All notices and other  communications  provided for herein shall be in
writing  and  shall be  deemed to have  been  duly  given if  delivered  by hand
(whether by overnight  courier or  otherwise) or sent by registered or certified
mail,  return receipt  requested,  postage  prepaid,  to the Party to whom it is
directed:

          (a) if to the Company or HNK:

                    KMC Telecom Holdings, Inc.
                    1545 Route 206
                    Bedminster, New Jersey  07921
                    Attn:  Chief Executive Officer
                    Telecopier No:  (908) 719-8775

                    with a copy to:

                    Kelley Drye & Warren
                    101 Park Avenue
                    New York, New York  10178
                    Attn:  Alan Epstein, Esq.
                    Telecopier No:  (212) 808-7898/7899
          
          (b) if to the Manager:
                    
                    
                    
                    
                    
              with a copy to:
                    
                    
                    
                    
                    
                    
              Attn:


                                                                              17


          (c) if to Nassau:

                    Nassau Capital L.L.C.
                    22 Chambers Street
                    Princeton, New Jersey 08542
                    Attn:  John Q. Quigley
                    Telecopier No:  (609) 924-8887

                    with a copy to:

                    Simpson Thacher & Bartlett
                    425 Lexington Avenue
                    New York, New York  10017
                    Attn:  George R. Krouse, Jr., Esq.
                    Telecopier No:  (212) 455-2502

              or at such other  address as each party  shall have  specified  by
              notice in writing to the other.

          23. COVENANT NOT TO COMPETE; CONFIDENTIAL INFORMATION.

          (a) In  consideration of the Company entering into this Agreement with
the Manager,  the Manager hereby agrees,  for so long as the Manager is employed
by the Company or one of its Affiliates and for a period of six (6) months after
the date of termination of the Manager's  employment (the "Noncompete  Period"),
that the Manager shall not (i) directly or  indirectly,  as an employee,  agent,
manager,  director,  officer,  stockholder,  partner or otherwise,  own, manage,
operate,  control,  be employed by, participate in or be connected in any manner
whatsoever with the ownership,  management, operation or control of any business
in competition  with the principal  business  activities in which the Company is
engaged,  or has material plans to engage in, at the time of the  termination of
the  manager's  employment,  (ii)  solicit from any  company,  or any  division,
department or subsidiary of any company,  or any  individual  employed by any of
the foregoing,  any business  relating to services similar to the services which
were  performed  by the Company  relating to the  Company's  principal  business
activities,  its joint  venturers  or  affiliates  for such  company  during the
Manager's  employment by the Company or its Affiliates or (iii) request or cause
any company to cancel or terminate any business  relationship  with the Company,
its joint  venturers  or  affiliates,  or  directly  or  indirectly  solicit  or
otherwise cause any employee to terminate such employee's  relationship with the
Company,  its joint  venturers  or  affiliates.  At the  Company's  option,  the
Noncompete  Period may be extended for an additional three (3) month period (the
"Noncompete  Extension  Period") if within one month of the  termination  of the
Noncompete Period the Company gives the Manager notice of such extension and the
Company pays the Manager an amount equal to one-fourth the Manager's annual base
salary as of the date of termination of employment. Such amount shall be paid in
installments  in a  manner  consistent  with  the then  current  salary  payment
policies of the Company.  At the  Company's  option,  the  Noncompete  Extension
Period may be extended for an additional  three (3) month period pursuant to the
provisions  of the two  preceding  sentences.  For  purposes of this Section 23,
"principal  business  activities"  of the  Company  shall  mean  those  business
activities of the Company  pursuant to which the Company has derived  during the
preceding  twelve month period,  or  reasonably  expects to derive within twelve
months of the termination of the Manager's employment, ten percent (10%) or more
of its consolidated revenues.


                                                                              18


          (b) The manager shall promptly and fully disclose to the Company,  and
with all Necessary detail for development, marketing; sale and installation, any
and  all  know-how,  discoveries,  inventions,  improvements,  ideas,  writings,
formulae, processes and methods (whether copyrightable, patentable or otherwise)
made, received, conceived, acquired or written by the Manager (whether or not at
the  request  or upon the  suggestion  of the  Company)  during  the term of the
Manager's  employment,  solely or jointly  with  others,  in or  relating to any
activities of the Company or an affiliate  known to the Manager as a consequence
of the  Manager's  employment  (collectively  referred to herein as the "Subject
Matter").

          (c) The Manager hereby assigns and transfers, and agrees to assign and
transfer,  to the Company,  all right,  title and interest in and to the Subject
Matter, and the Manager further agrees' to execute,  acknowledge and deliver all
such further papers,  including  applications for copyrights and patents, as may
be  necessary  to obtain  copyrights  or patents  for any thereof in any and all
countries and to vest title thereto to the Company. The Manager shall assist the
Company  in  obtaining  such  copyrights  or  patents  during the period of this
Agreement  and  any  time  thereafter  and  to  testify  in any  prosecution  or
litigation involving any of the Subject Matter.

          (d) The Manager shall not, during the period of this Agreement,  or at
any time thereafter,  directly or indirectly, disclose or permit to be known, to
any person, f inn or cooperation,  any trade-secrets or confidential information
acquired  by him  during  the  course  of or as an  incident  to the  employment
hereunder, relating to the Company, its officers or directors, any company which
the Manager has  knowledge of or dealt with in the course of his  employment  by
the Company,  or any joint venture or affiliate of the Company,  or in which any
of the foregoing has a beneficial interest,  including,  but not limited to, the
business affairs of each of the foregoing.  Such confidential  information shall
include,  but is not  limited  to,  the  Subject  Matter as well as  information
relating to agreements,  research,  methods,  writings,  manuals,  developments,
marketing  and any  other  document  embodying  such  confidential  information.
Confidential  information  shall not include any information  that (i) is in the
public  domain  other  than by  reason  of a breach  hereof;  or (ii) was in the
possession of the Manager at the time of the  disclosure;  or (iii) was obtained
by the Manager in good faith from a third party entitled to disclose it; or (iv)
was  required  to  be  disclosed  by a  court  of  competent  jurisdiction  or a
governmental  authority  with  authority  over the  Company,  in which  case the
Manager shall use the Manager's best efforts, prior to such disclosure,  to give
timely notice of such requirement to the Board of Directors of the Company which
shall have the right to object to such disclosure or seek confidential treatment
of the confidential information.

          (e) All names of actual or potential clients which have been solicited
or are on any mailing lists, rolodex,  files or directories in the possession or
under the  control of the  Manager  (whether  in  written,  electronic  or other
formats), and all information and documents relating to the Company or its joint
venturers or affiliates,  shall be the-exclusive property of the Company and the
Manager  shall use the  Manager's  best  efforts to prevent any  publication  or
disclosure  thereof.  Upon  termination  of the  Manager's  employment  with the
Company,  all  names of  actual  or  potential  customers,  documents,  records,
reports,   writings  and  other  similar   documents   containing   confidential
information,  or trade-secrets  including copies thereof,  then in the Manager's
possession or control shall be promptly returned to the Company.


                                                                              19


          (f) Notwithstanding  clauses (a) and (d) above, if at any time a court
holds that the restrictions  stated in such clauses (a) and (d) are unreasonable
or otherwise unenforceable under circumstances then existing, the parties hereto
agree  that the  maximum  period,  scope or  geographic  area  determined  to be
reasonable  under such  circumstances  by such court will be substituted for the
stated  period,  scope or area.  The Manager and the Company  recognize that the
services  to be  rendered  by the  Manager  are of a special,  unique,  unusual,
extraordinary  and intellectual  character  involving a high degree of skill and
having a peculiar value,  the loss of which may cause the Company  immediate and
irreparable harm which cannot be adequately compensated in damages. In the event
of a breach or threatened  breach by the Manager of this Agreement,  the Manager
consents  that  the  Company  shall  be  entitled  to  injunctive  relief,  both
preliminary  and  permanent,  without  bond,  and the Manager will not raise the
defense that the Company has an adequate remedy at law. In addition, the Company
shall be entitled to any other legal or  equitable  remedies as may be available
under law. The remedies  provided in this Agreement  shall be deemed  cumulative
and the  exercise of one shall not  preclude the exercise of any other remedy at
law or in equity for the same event or any other event.



                                                                              20


          IN WITNESS  WHEREOF,  the undersigned  have executed,  or caused to be
executed, this Agreement as of the date first above written.

                                          KMC TELECOM HOLDINGS, INC.



                                          By:___________________________________
                                             Name:
                                             Title:



                                          ______________________________________
                                          Name:

                                          NASSAU CAPITAL PARTNERS L.P.

                                          By:  Nassau Capital L.L.C., its
                                               General Partner


                                               By:______________________________
                                                  Name:
                                                  Title:

                                           NAS PARTNERS I L.L.C.



                                           By:__________________________________
                                              Name:
                                              Title:

                                           HAROLD N. KAMINE


                                           _____________________________________