Document:

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                                                                    Exhibit 10.9

                            ADVANCED LUMITECH, INC.

THIS WARRANT AND THE SECURITIES PURCHASED UPON EXERCISE HEREOF HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"),
OR ANY STATE SECURITIES LAW, AND MAY NOT BE SOLD, TRANSFERRED, PLEDGED,
HYPOTHECATED OR OTHERWISE DISPOSED OF OR EXERCISED UNLESS (i) A REGISTRATION
STATEMENT UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS SHALL
HAVE BECOME EFFECTIVE WITH REGARD THERETO, OR (ii) AN EXEMPTION FROM
REGISTRATION UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS IS
AVAILABLE IN CONNECTION WITH SUCH OFFER, SALE OR TRANSFER.

                        Warrant to Purchase_____ shares

                     "A" Warrant to Purchase Common Stock
                                      of
                            ADVANCED LUMITECH, INC.

THIS CERTIFIES that _______________________ or any subsequent holder hereof
("Holder"), has the right to purchase from ADVANCED LUMITECH, INC., a Nevada
corporation (the "Company"), up to ______ fully paid and nonassessable shares of
the Company's common stock, $.001 par value per share, with one "B" Warrant
attached per share ("Common Stock"), subject to adjustment as provided herein,
at a price equal to the Exercise Price as defined in Section 3 below, at any
time beginning on the Date of Issuance (defined below) and ending at 5:00 p.m.,
New York, New York time, on September 30, 1999 (the "Exercise Period").

Holder agrees with the Company that this Warrant to Purchase Common Stock of
Advanced Lumitech, Inc. (this "Warrant") is issued and all rights hereunder
shall be held subject to all of the conditions, limitations and provisions set
forth herein.

     1.   DATE OF ISSUANCE.

     This Warrant shall be deemed to be issued on September 15, 1999 ("Date of
Issuance").

     2.   EXERCISE.

     (a)  MANNER OF EXERCISE. During the Exercise Period, this Warrant may be
exercised as to all or any lesser number of full shares of Common Stock covered
hereby upon surrender of this Warrant, with the Exercise Form attached hereto as
Exhibit A (the "Exercise Form") duly executed, together with the full Exercise
Price (as defined below) for each share of Common Stock as to which this Warrant
is exercised, at the office of the Company, Avenue Cardinal-Mermillod 36, 1227
Carouge, Geneva, Switzerland; Attention: President, Telephone No. (41-22) 301-
0360, Telecopy No. (41-22) 301-0361, or at such other office or agency as the
Company may designate in writing, by overnight mail, with an advance copy of the
Exercise Form sent to the Company by facsimile (such surrender and payment of
the Exercise Price hereinafter called the "Exercise of this Warrant").

     (b)  DATE OF EXERCISE. The "Date of Exercise" of the Warrant shall be
defined as the date that the advance copy of the Exercise Form is sent by
facsimile to the Company, provided that the original Warrant and

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Exercise Form are received by the Company as soon as practicable thereafter.
Alternatively, the Date of Exercise shall be defined as the date the original
Exercise Form is received by the Company, if Holder has not sent advance notice
by facsimile.

     (c)  CANCELLATION OF WARRANT. This Warrant shall be canceled upon the
Exercise of this Warrant, and, as soon as practical after the Date of Exercise,
Holder shall be entitled to receive Common Stock for the number of shares
purchased upon such Exercise of this Warrant, and if this Warrant is not
exercised in full, Holder shall be entitled to receive a new Warrant (containing
terms identical to this Warrant) representing any unexercised portion of this
Warrant in addition to such Common Stock.

     (d)  HOLDER OF RECORD. Each person in whose name any Warrant for shares of
Common Stock is issued shall, for all purposes, be deemed to be the Holder of
record of such shares on the Date of Exercise of this Warrant, irrespective of
the date of delivery of the Common Stock purchased upon the Exercise of this
Warrant. Nothing in this Warrant shall be construed as conferring upon Holder
any rights as a stockholder of the Company.

     3.   PAYMENT OF WARRANT EXERCISE PRICE.

     The Exercise Price shall equal $0.75 per share ("Exercise Price").

     Payment of the Exercise Price may be made by either of the following, or a
combination thereof, at the election of Holder: cash, certified check, cashiers
check or wire transfer.

     4.   TRANSFER AND REGISTRATION.

     (a)  TRANSFER RIGHTS. Subject to the provisions of Section 8 of this
Warrant, this Warrant may be transferred on the books of the Company, in whole
or in part, in person or by attorney, upon surrender of this Warrant properly
endorsed. This Warrant shall be canceled upon such surrender and, as soon as
practicable thereafter, the person to whom such transfer is made shall be
entitled to receive a new Warrant or Warrants as to the portion of this Warrant
transferred and Holder shall be entitled to receive a new Warrant as to the
portion hereof retained.

     (b)  REGISTRABLE SECURITIES. The Common Stock issuable upon the exercise of
this Warrant constitutes "Registrable Securities" under that certain
Registration Rights Agreement dated on or about __________________, 1999 between
the Company and the Holders and, accordingly, has the benefit of the
registration rights pursuant to that agreement.

     5.   ANTI-DILUTION ADJUSTMENTS.

     (a)  STOCK DIVIDEND. If the Company shall at any time declare a dividend
payable in shares of Common Stock, then Holder, upon Exercise of this Warrant
after the record date for the determination of holders of Common Stock entitled
to receive such dividend, shall be entitled to receive upon Exercise of this
Warrant, in addition to the number of shares of Common Stock as to which this
Warrant is exercised, such additional shares of Common Stock as such Holder
would have received had this Warrant been exercised immediately prior to such
record date and the Exercise Price will be proportionately adjusted.

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     (b)  RECAPITALIZATION OR RECLASSIFICATION. If the Company shall at any time
the Warrants are outstanding effect a recapitalization, reclassification or
other similar transaction of such character that the shares of Common Stock
shall be changed into or become exchangeable for a larger or smaller number of
shares, then upon the effective date thereof, the number of shares of Common
Stock which Holder shall be entitled to purchase upon Exercise of this Warrant
shall be increased or decreased, as the case may be, in direct proportion to the
increase or decrease in the number of shares of Common Stock by reason of such
recapitalization, reclassification or similar transaction, and the Exercise
Price shall be, in the case of an increase in the number of shares,
proportionally decreased and, in the case of decrease in the number of shares,
proportionally increased. The Company shall give Holder same notice it provides
to holders of Common Stock of any transaction described in this Section 5 (b).

     (c)  DISTRIBUTIONS. If the Company shall at any time the Warrants are
outstanding distribute for no consideration to holders of Common Stock cash,
evidences of indebtedness or other securities or assets (other than cash
dividends or distributions payable out of earned surplus or net profits for the
current or preceding year) then, in any such case, Holder shall be entitled to
receive, upon Exercise of this Warrant, with respect to each share of Common
Stock issuable upon such exercise, the amount of cash or evidences of
indebtedness or other securities or assets which Holder would have been entitled
to receive with respect to each such share of Common Stock as a result of the
happening of such event had this Warrant been exercised immediately prior to the
record date or other date fixing shareholders to be affected by such event (the
"Determination Date") or, in lieu thereof, if the Board of Directors of the
Company should so determine at the time of such distribution, a reduced Exercise
Price determined by multiplying the Exercise Price on the Determination Date by
a fraction, the numerator of which is the result of such Exercise Price reduced
by the value of such distribution applicable to one share of Common Stock (such
value to be determined by the Board of Directors of the Company in its
discretion) and the denominator of which is such Exercise Price.

     (d)  NOTICE OF CONSOLIDATION OR MERGER. In the event of a merger,
consolidation, exchange of shares, recapitalization, reorganization, or other
similar event, as a result of which shares of Common Stock shall be changed into
the same or a different number of shares of the same or another class or classes
of stock or securities or other assets of the Company or another entity or there
is a sale of all or substantially all the Company's assets (a "Corporate
Change"), then this Warrant shall be exercisable into such class and type of
securities or other assets as Holder would have received had Holder exercised
this Warrant immediately prior to such Corporate Change; provided, however, that
Company may not affect any Corporate Change unless it first shall have given
thirty (30) business days notice to Holder hereof of any Corporate Change.

     (e)  EXERCISE PRICE ADJUSTED. As used in this Warrant, the term "Exercise
Price" shall mean the purchase price per share specified in Section 3 of this
Warrant, until the occurrence of an event stated in subsection (a), (b) or (c)
of this Section 5, and thereafter shall mean said price as adjusted from time to
time in accordance with the provisions of said subsection. No such adjustment
under this Section 5 shall be made unless such adjustment would change the
Exercise Price at the time by $.01 or more; provided, however, that all
adjustments not so made shall be deferred and made when the aggregate thereof
would change the Exercise Price at the time by $.01 or more. No adjustment made

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pursuant to any provision of this Section 5 shall have the net effect of
increasing the Exercise Price. The number of shares of Common Stock subject
hereto shall increase proportionately with each decrease in the Exercise Price.

     (f)  ADJUSTMENTS: ADDITIONAL SHARES, SECURITIES OR ASSETS. In the event
that at any time, as a result of an adjustment made pursuant to this Section 5,
Holder shall, upon Exercise of this Warrant, become entitled to receive shares
and/or other securities or assets (other than Common Stock) then, wherever
appropriate, all references herein to shares of Common Stock shall be deemed to
refer to and include such shares and/or other securities or assets; and
thereafter the number of such shares and/or other securities or assets shall be
subject to adjustment from time to time in a manner and upon terms as nearly
equivalent as practicable to the provisions of this Section 5.

     6.   FRACTIONAL INTERESTS.

          No fractional shares or scrip representing fractional shares shall be
issuable upon the Exercise of this Warrant, but on Exercise of this Warrant,
Holder may purchase only a whole number of shares of Common Stock, if, on
Exercise of this Warrant, Holder would be entitled to a fractional share of
Common Stock or a right to acquire a fractional share of Common Stock, such
fractional share shall be disregarded and the number of shares of Common Stock
issuable upon exercise shall be the next higher number of shares.

7.   RESERVATION OF SHARES.

          The Company shall at all times reserve for issuance such number of
authorized and unissued shares of Common Stock (or other securities substituted
therefor as herein above provided) as shall be sufficient for the Exercise of
this Warrant and payment of the Exercise Price. The Company covenants and agrees
that upon the Exercise of this Warrant, all shares of Common Stock issuable upon
such exercise shall be duly and validly issued, fully paid, nonassessable and
not subject to preemptive rights, rights of first refusal or similar rights of
any person or entity.

     8.   RESTRICTIONS ON TRANSFER.

     (a)  REGISTRATION OR EXAMINATION REQUIRED. This Warrant has been issued in
a transaction exempt from the registration requirements of the Act by virtue of
Regulation D and is exempt from state registration under applicable state laws.
The Warrant and the Common Stock issuable upon the Exercise of this Warrant may
not be sold except pursuant to an effective registration statement or an
exemption to the registration requirements of the Act and applicable state laws.

     (b)  ASSIGNMENT. If Holder can provide the Company with reasonably
satisfactory evidence that the conditions of (a) above regarding registration or
exemption have been satisfied, Holder may sell, transfer, assign, pledge or
otherwise dispose of this Warrant, in whole or in part. Holder shall deliver a
written notice to Company, substantially in the form of the Assignment attached
hereto as Exhibit B, indicating the person or persons to whom the Warrant shall
be assigned and the respective number of warrants to be assigned to each
assignee. The Company shall effect the assignment within ten (10) days, and
shall deliver to the assignee(s) designated by Holder a Warrant or Warrants of
like tenor and terms for the appropriate number of shares.

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     9.   BENEFITS OF THIS WARRANT.

          Nothing in this Warrant shall be construed to confer upon any person
other than the Company and Holder any legal or equitable right, remedy or claim
under this Warrant and this Warrant shall be for the sole and exclusive benefit
of the Company and Holder.

     10.  APPLICABLE LAW.

          This Warrant is issued under and shall for all purposes be governed by
and construed in accordance with the laws of the state of Nevada, without giving
effect to conflict of law provisions thereof.

     11.  LOSS OF WARRANT.

          Upon receipt by the Company of evidence of the loss, theft,
destruction or mutilation of this Warrant, and (in the case of loss, theft or
destruction) of indemnity or security reasonable to the Company, and upon
surrender and cancellation of this Warrant, if mutilated, the Company shall
execute and deliver a new Warrant of like tenor and date.

     12.  NOTICE OR DEMANDS.

Notices or demands pursuant to this Warrant to be given or made by Holder to or
on the Company shall be sufficiently given or made if sent by certified or
registered mail, return receipt requested, postage prepaid, and addressed, until
another address is designated in writing by the Company, to Attention:
_______________________________________________________________________________
_____________. Notices or demands pursuant to this Warrant to be given or made
by the Company to or on Holder shall be sufficiently given or made if sent by
certified or registered mail, return receipt requested, postage prepaid, and
addressed, to the address of Holder set forth in the Company's records, until
another address is designated in writing by Holder.

     IN WITNESS WHEREOF, the undersigned has executed this Warrant as of
the_____day of ____, 19__.

                                ADVANCED LUMITECH, INC.

                                By: ______________________
                                Patrick Planche, President

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                                   EXHIBIT A

                                 EXERCISE FORM

TO: ADVANCED LUMITECH, INC.

     The undersigned hereby irrevocably exercises the right to purchase the
shares of common stock, with "B" Warrant attached (the "Common Stock") of
ADVANCED LUMITECH, INC., a Nevada corporation (the "Company"), evidenced by the
attached warrant (the "Warrant"), and herewith makes payment of the exercise
price with respect to such shares in full, all in accordance with the conditions
and provisions of said Warrant.

1.   The undersigned agrees not to offer, sell, transfer or otherwise dispose of
any of the Common Stock or Warrants obtained on exercise of this Warrant, except
in accordance with the provisions of Section 8 (a) of the Warrant.

2.   The undersigned requests that stock certificates for such shares, with "B"
Warrants attached, be issued , and a warrant representing any unexercised
portion hereof be issued, pursuant to the Warrant in the name of the undersigned
and delivered to the undersigned at the address set forth below:

Dated:

                     _______________________________________
                                  Signature

                     _______________________________________
                                  Print Name

                     _______________________________________
                                  Address

                     _______________________________________

NOTICE

The signature to the foregoing Exercise Form must correspond to the name as
written upon the face of the attached Warrant in every particular, without
alteration or enlargement or any change whatsoever.

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                                   EXHIBIT B

                                  ASSIGNMENT

                   (To be executed by the registered holder
                       desiring to transfer the Warrant)

FOR VALUE RECEIVED, the undersigned holder of the attached warrant (the
"Warrant") hereby sells, assigns and transfers unto the person or persons below
named the right to purchase _____ shares, with attached "B" Warrants, of the
common stock of ADVANCED LUMITECH, INC., evidenced by the attached Warrant and
does hereby irrevocably constitute and appoint _________________________
attorney to transfer the said Warrant on the books of the Company, with full
power of substitution in the premises.

Dated:

_______________________________________
               Signature

Fill in for new registration of Warrant:

_______________________________________
               Name

_______________________________________
               Address

_______________________________________
Please print name and address of assignee
(including zip code number)

________________________________________________________________________________

NOTICE

The signature to the foregoing Assignment must correspond to the name as written
upon the face of the attached Warrant in every particular, without alteration or
enlargement or any change whatsoever.

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                                                                  Exhibit 10.1.1

                           STOCK PURCHASE AGREEMENT

          This is a Stock Rights Agreement (the "Agreement"), dated July 17,
1998, between ARUNAS A. CHESONIS ("Shareholder"), PAETEC CORP., a Delaware
corporation with its principal place of business at 290 Woodcliff Drive,
Fairport, New York 14450 (the "Company"), and PAETEC COMMUNICATIONS, INC., a
Delaware corporation and wholly-owned subsidiary of the Company with its
principal place of business at 290 Woodcliff Drive, Fairport, New York 14450
("Subsidiary").

                                   RECITALS

          A.  The Company is a Delaware corporation having 110,000,000 shares of
authorized capital stock, 10,000,000 of which are designated preferred stock,
75,000,000 of which are designated Class A common and 25,000,000 of which are
designated Class B common.

          B.  Shareholder is one of the founding Shareholders of the Company and
is an employee of the Subsidiary.  The Company previously offered to issue to
Shareholder 2,500,000 shares of Class B common stock at a purchase price of $.48
per share, subject to certain restrictions.

          C.  The Company, Subsidiary, and Shareholder enter into this Agreement
for the purpose of confirming Shareholder's equity interest in the Company and
outlining the rights of and restrictions imposed by the Company with respect to
the shares of stock held by the Shareholder.

          NOW, THEREFORE, in consideration of the following mutual promises, the
parties agree as follows:

          1.  Issuance of Shares.
              ------------------

          (a) The Company confirms its previous offer to issue 2,500,000 shares
of Class B common stock (the "Shares") to Shareholder at a price of $.48 per
share payable in full upon issuance of the Shares.  A stock certificate
evidencing the Shares shall be issued in the name of Shareholder upon receipt of
this executed Agreement and payment in full of the purchase price.

          (b) In order to induce the Company to issue the Shares, Shareholder
represents and warrants to the Company as follows:

              (i) Shareholder (A) understands that an investment in the Shares
is speculative due to factors including (but not limited to) the start-up nature
of the Company and
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the risk of economic loss from the operations of the Company, but believes that
such an investment is suitable for Shareholder based upon Shareholder's
financial needs, (B) can withstand a complete loss of the investment in the
Shares, and (C) has the net worth to undertake these risks.

               (ii)   Shareholder is acquiring the Shares for the personal
account of Shareholder, with no present intention of reselling, distributing or
otherwise transferring the Shares or any portion of the Shares to anyone else,
except that the Company acknowledges Shareholder's intention to resell 50,000 of
his Shares to Algimantas K. Chesonis shortly after the issuance of the Shares to
Shareholder.

               (iii)  Shareholder understands and acknowledges that the Shares
are being offered and sold under one or more exemptions provided in the
Securities Act of 1933, as amended (the "Securities Act"), Regulation D
promulgated thereunder and applicable New York State securities laws, and that
this transaction has not been reviewed or passed upon by the United States
Securities and Exchange Commission, the New York State Attorney General, or any
other federal or state agency.

               (iv)   Shareholder realizes that Shareholder must bear the
economic risk of investment for an indefinite period of time because (A) the
Shares have not been registered under the Securities Act and cannot be resold by
Shareholder unless they are subsequently registered under the Securities Act or
an exemption from registration is available, (B) the transferability of the
Shares is restricted by the terms of this Agreement, and (C) there currently is
no public market for the Shares, and Shareholder may not be able to liquidate
the investment in the Shares in the event of an emergency. Shareholder has
adequate means of providing for Shareholder's current financial needs and
personal contingencies, and has no need for liquidity of investment with respect
to the Shares.

               (v)    Shareholder believes that Shareholder, either alone or
together with the assistance of professional advisor(s), has knowledge and
experience in business and financial matters sufficient to make Shareholder
capable of evaluating the merits and risks of an investment in the Shares.

               (vi)   Shareholder is fully familiar with the business of the
Company and its present and proposed operations. Shareholder has been given
reasonable opportunity to ask representatives of the Company questions
concerning the Company and making an investment in the Shares. Shareholder has
obtained sufficient information to evaluate the merits and risks of an
investment in the Shares.

               (vii)  Shareholder confirms that Shareholder has been advised to
rely on professional accounting, tax, legal and financial advisers with respect
to an investment in the Shares and has obtained, to the extent Shareholder deems
it necessary, professional advice

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with respect to the risks inherent in an investment in the Shares and the
suitability of an investment in the Shares in light of Shareholder's financial
condition and investment needs.

          2.  Non-Competition.
              ---------------

          (a) For a period of one year after termination of Shareholder's
employment with the Subsidiary (regardless of the reason for termination),
Shareholder shall not, directly or indirectly:

              (i)   solicit or serve clients or customers of the Company or any
affiliate of the Company (including the Subsidiary), whether for Shareholder's
own account or as an employee, shareholder, partner, officer, member, manager,
director, consultant, or other representative of any third party;

              (ii)  direct any business from, or enter into competition with,
the Company or any affiliate of the Company (including the Subsidiary) in any
line of business in which the Company or such affiliate was conducting
operations during Shareholder's employment; or

              (iii) serve as an employee, shareholder, partner, officer, member,
manager, director, consultant or other representative of any third party which
engages in any line of business competitive with the Company or any affiliate of
the Company (including the Subsidiary) anywhere in the world.

Shareholder acknowledges that the foregoing limitations are reasonable in time
and scope and agrees not to raise any objection to the reasonableness of the
foregoing in any action or proceeding to enforce the terms of this Section.

          (b) As consideration for the non-competition covenant set forth in
subparagraph (a) above, the Subsidiary agrees that, if Shareholder's employment
is terminated by the Subsidiary for any reason; or terminates due to the death,
disability, voluntary resignation, or withdrawal of Shareholder, Subsidiary
shall pay Shareholder or Shareholder's personal representative, during the one-
year period in which the covenant is in effect, an amount equal to the
annualized base salary paid to Shareholder immediately prior to termination of
Shareholder's employment.  Payment shall be made in accordance with the
Subsidiary's customary payroll practices.

          (c) Should Shareholder violate the terms of the non-competition
covenant set forth in subparagraph (a), the Company shall notify Shareholder in
writing of the alleged violation that constitutes a breach of this Agreement,
and Shareholder shall have 10 business days to cure the breach.  If the breach
is not cured to the satisfaction of the Company, then in addition to any other
remedies available under law, the Company may discontinue any payments being
made to Shareholder pursuant to subparagraph (b) hereof.

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          (d) Shareholder acknowledges that his/her services are unique and
extraordinary and are not readily replaceable, and hereby expressly agrees that,
in the event of a violation of the non-competition covenant set forth in
subparagraph (a), the Company and its affiliates (including Subsidiary) will be
irreparably harmed and the remedy of damages or other remedy at law will be
inadequate.  Therefore, Shareholder agrees that, in the event of a threatened or
actual violation of the non-competition covenant, the Company shall be entitled
to obtain from any court of competent jurisdiction, an injunction restraining
Shareholder from committing the violation, without the necessity of proving
actual damage and in addition to any other relief available under this Agreement
or at law.

          3.  Piggy-Back Registration Rights.
              ------------------------------

          (a) If at any time or from time to time the Company shall determine to
register any of its equity securities, either for its own account or the account
of a security holder or holders (other than a registration of securities
relating solely to employee benefit plans or to effect a merger or other
reorganization), the Company will promptly give to Shareholder written notice
thereof and, upon the written request of Shareholder, include in such
registration (and any related qualification under blue sky laws or other
compliance), and in any underwriting involved therein, all the Shares specified
in the written request made within 10 business days after receipt of such
written notice from the Company.

          (b) If the registration of which the Company gives notice is for a
registered public offering involving an underwriting, the Company shall so
advise Shareholder as a part of the written notice given to Shareholder.  In
such event the right of any Shareholder to registration pursuant to this Section
3 shall be conditioned upon Shareholder's participation in such underwriting,
and the inclusion of Shares in the underwriting shall be limited to the extent
provided herein.  Shareholder (together with the Company and the other holders
distributing their securities through such underwriting) shall enter into an
underwriting agreement in customary form with the managing underwriter selected
for such underwriting by the Company.  Notwithstanding any other provision of
this Section 3, if the managing underwriter determines that marketing factors
require a limitation of the number of shares to be underwritten, the managing
underwriter may exclude some or all of the Shares or securities of other holders
of similar registration rights from such registration.  The Company shall so
advise Shareholder and other stockholders distributing their securities through
such underwriting, and the number of Shares or securities of other holders of
similar registration rights that may be included in the registration and
underwriting, as determined by the managing underwriter, shall be allocated on a
pro rata basis.  If Shareholder disapproves of the terms of any such
underwriting, Shareholder may elect to withdraw therefrom by written notice to
the Company and the managing underwriter.  Any securities excluded or withdrawn
from such underwriting shall be withdrawn from such registration, and shall
continue to be subject to the terms of this Section.

                                       4
<PAGE>

          (c) The Company shall have the right to terminate or withdraw any
registration initiated by it under this Section 3 prior to the effectiveness of
such registration whether or not Shareholder has elected to include securities
in such registration.

          (d) All expenses associated with the registration (including, without
limitation, registration, qualification and filing fees, printing expenses, blue
sky fees, and fees and disbursements of counsel and accountants for the Company)
shall be borne by the Company.  Selling expenses, including underwriters'
discounts, shall be borne by Shareholder pro rata in proportion to the number of
securities being registered.

          (e) In the case of each registration under this Section, the Company
will:

              (i)   prepare and file a registration statement with respect to
such securities and use its best efforts to cause such registration statement to
become and remain effective for at least 45 days or until the distribution
described in the registration statement has been completed, whichever first
occurs;

              (ii)  furnish to Shareholder such reasonable number of copies of
the registration statement, preliminary prospectus, final prospectus and such
other documents as Shareholder may reasonably request in order to facilitate the
public offering of the Shares; and

              (iii) use its best efforts to register and qualify the securities
covered by such registration statement under such other securities or blue sky
laws of such jurisdictions as shall be reasonably requested by Shareholder,
provided that the Company shall not be required in connection therewith or as a
condition thereto to qualify as a foreign corporation or as a dealer in
securities or to file a general consent to service of process in any such states
or jurisdictions in which it has not already done so and except as may be
required by the Securities Act.

          (f) The Company will indemnify Shareholder against all expenses,
claims, losses, damages or liabilities (or actions in respect thereof), arising
out of or based on any untrue statement (or alleged untrue statement) of a
material fact contained in any registration statement, prospectus, offering
circular or other document, or any amendment or supplement thereto, incident to
any such registration, or based on any omission (or alleged omission) to state
therein a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances in which they were made, not
misleading, or any violation by the Company of the Securities Act of 1933, the
Securities Exchange Act of 1934, state securities law or any rule or regulation
promulgated under such laws applicable to the Company in connection with any
such registration, qualification or compliance, and the Company will reimburse
Shareholder for any legal and any other expenses reasonably incurred, as such
expenses are incurred, in connection with investigating, preparing or defending
any such claim, loss, damage, liability or action, provided that the Company
will not be liable in any such case to the extent that any such claim, loss,
damage, liability or expense

                                       5
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arises out of or is based on any untrue statement or omission, or alleged untrue
statement or omission, made in reliance upon and in conformity with written
information furnished to the Company by an instrument duly executed by
Shareholder.

          (g) Shareholder will, if Shares held by such Shareholder are included
in the securities as to which such registration is being effected, indemnify the
Company, each of its directors and officers, each underwriter, if any, of the
Company's securities covered by such a registration statement against all
claims, losses, damages and liabilities (or actions in respect thereof) arising
out of or based on any untrue statement (or alleged untrue statement) of a
material fact contained in any such registration statement, prospectus, offering
circular or other document, or any omission (or alleged omission) to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, and will reimburse the Company, such
Shareholders, such directors, officers, persons, underwriters or control persons
for any legal or any other expenses reasonably incurred, as such expenses are
incurred, in connection with investigating or defending any such claim, loss,
damage, liability or action, in each case to the extent, but only to the extent,
that such untrue statement (or alleged untrue statement) or omission (or alleged
omission) is made in such registration statement, prospectus, offering circular
or other document in reliance upon and in conformity with written information
furnished to the Company by an instrument duly executed by Shareholder and
stated to be specifically for use therein.

          (h) Shareholder shall furnish to the Company such information
regarding Shareholder, the Shares held by Shareholder, and the distribution
proposed by Shareholder as the Company may request in writing and as shall be
required in connection with any registration referred to in this Agreement.

          (i) The registration rights granted to Shareholder in this Section
shall expire at such time (if ever) as Shareholder is free to sell the Shares
under Rule 144 promulgated under the Securities Act (or any successor thereto)
without limitation as to volume or manner of sale restrictions.

          4.  Legend.  Each certificate for Shares owned by Shareholder shall
              ------
bear the following legend:

          The shares represented by this certificate have not been
          registered under the Securities Act of 1933, as amended, and
          may not be transferred in the absence of such registration
          unless the Company receives an opinion of counsel reasonably
          acceptable to it stating the such sale or transfer is exempt
          from registration.

          5.  Notices.  All notices and communications under this Agreement
              -------
shall be in writing and shall be given by personal delivery or by registered or
certified mail, return receipt requested, addressed to the residence of
Shareholder set forth below or to such other

                                       6
<PAGE>

address as may be designated by Shareholder, and to the principal office of the
Company. Notice shall be deemed given upon personal delivery or upon receipt.

          6.  Miscellaneous.
              -------------

          (a) Neither this Agreement, nor any action taken under it, shall be
construed as creating any limitation or restriction upon any right that
Subsidiary would otherwise have to terminate the employment of Shareholder at
any time for any reason.

          (b) This Agreement may be modified or amended only upon the written
consent of all parties to the Agreement.

          (c) This Agreement shall be interpreted, construed, and enforced in
accordance with the laws of the State of New York.

          (d) Neither this Agreement, nor any rights or obligations under it,
may be assigned by any party without the prior written consent of the other
parties.

          (e) This Agreement shall benefit and be binding upon the parties and
their successors, heirs, executors, personal representatives, and assigns.

          (f) This Agreement sets forth the entire understanding and agreement
of the parties with respect to its subject matter and supersedes all prior
letters, agreements, covenants, communications, understandings, representations,
or warranties, whether oral or written, by any officer, employee, or
representative of either party.

          (g) The waiver of any provision of this Agreement, or of any breach of
this Agreement, shall not constitute a subsequent waiver of any provision or
breach.

          (h) In the event that Shareholder is a prevailing party in any
litigation arising under or in connection with this Agreement, the Company shall
pay the reasonable attorneys fees and expenses incurred by Shareholder in
connection with the litigation.

          (i) If, at any time, any of the provisions of this Agreement shall be
deemed by a court or other body having jurisdiction over this Agreement to be
illegal, invalid, or unenforceable, those provisions shall be deemed severed
from this Agreement.  The remaining provisions of this Agreement shall be valid
and binding as if this Agreement had never contained any illegal, invalid, or
otherwise unenforceable provisions, without the requirement that the amendment
be recorded in a writing signed by the parties.

                                       7
<PAGE>

          The parties' assent to the terms of this Agreement is confirmed by
their signatures below.

                                    PAETEC CORP.

                                    By: /s/ Richard E. Ottalagana
                                       -------------------------------------
                                         Title: Executive Vice President

                                    PAETEC COMMUNICATIONS, INC.

                                    By: /s/ Richard E. Ottalagana
                                       -------------------------------------
                                         Title: Executive Vice President

Address:                            /s/ Arunas A. Chesonis
                                    ----------------------------------------
                                        Arunas A. Chesonis
18 Buckthorn Run
Victor, New York  14564

                                       8

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