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                              EMPLOYMENT AGREEMENT

         EMPLOYMENT AGREEMENT made and entered into as of the 1st day of
October, 1999 by and between PSINet Inc. (the "Company"), a New York corporation
with its principal offices at 510 Huntmar Park Drive, Herndon, Virginia, and
William L. Schrader (the "Executive").

         WHEREAS, the Executive is currently serving as Chairman of the Board of
Directors and Chief Executive Officer of the Company, and the Company desires to
secure the continued employment of the Executive in these positions, as his
services are deemed essential to the Company's continued success; and

         WHEREAS, the Company wishes to continue to employ the Executive and the
Executive is willing to continue to be employed by the Company, all on the terms
and conditions set forth in this Agreement.

         NOW, THEREFORE, in consideration of the mutual promises, covenants and
agreements set forth below, and for other good and valuable consideration, the
receipt and adequacy of which are hereby acknowledged, the parties, intending to
be legally bound, hereby agree as follows:

1.       EMPLOYMENT POSITION.

a) POSITION AND DUTIES. The Company hereby employs the Executive as the Chairman
of the Board of Directors and Chief Executive Officer of the Company. This is a
corporate officer position and as an officer of the Company the Executive must
stand for election by the Company's Board of Directors (the "Board") each year
of the Term (as defined in Section 2 hereof). The Executive shall have such
powers, duties, authority and responsibilities as are (i) consistent with such
positions, (ii) assigned to such offices in the Company's By-laws, and (iii)
reasonably assigned to the Executive by the Board. The Executive accepts such
employment and agrees to remain in the employ of the Company, and, except during
vacations or periods of illness, to provide management services to the Company,
as determined by and under the direction of the Board.

b) BOARD SEAT. The Executive shall be a member of the Board, and the Company
will cause the Executive to be included in the management slate for election,
and will use its best efforts to cause the Executive to be elected, as a
Director throughout the Term.

c) LOCATION OF EMPLOYMENT. In connection with the Executive's employment by the
Company, the Executive's principal place of employment shall be the greater
Washington, D.C. area and he shall not, during the Term, be required permanently
to relocate to a principal place of business outside of the greater Washington,
D.C. area.

d) FULL TIME BASIS. During the Term, the Executive will, except during
vacations, periods of illness, and other absences beyond his reasonable control,
devote his best efforts, skill

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and attention to the performance of his duties on behalf of the Company.
Notwithstanding the foregoing, the Executive may serve on corporate,
industry, civic or charitable boards or committees (subject to the provisions
of Section 6 hereof).

2. TERM OF EMPLOYMENT. The term of the employment under this Agreement shall
commence on October 1, 1999, and shall continue for a period of four (4) years
(the "Initial Term"); provided, however, that this Agreement shall automatically
be extended for additional one-year periods (each, a "Renewal Term"), unless (i)
the Company, with the prior approval of the Board, or (ii) the Executive, shall
have given notice to the other at least six (6) months prior to the end of the
Initial Term or any Renewal Term, as applicable, that this Agreement shall not
be extended (the "Non-Renewal Notice"). The Initial Term together with any
Renewal Term are referred to herein collectively as the "Term."

3. COMPENSATION.

a) BASE SALARY. The Company shall pay the Executive a base salary at the rate of
$750,000 per annum beginning October 1, 1999. Beginning on January 1, 2001 and
on January 1st of each succeeding calendar year during the Term, the Executive's
base salary shall be increased at a minimum by an amount equal to five percent
(5%) of the Executive's then current base salary. The Executive's base salary
shall be subject to additional increases at the discretion of the Compensation
Committee of the Board (the "Compensation Committee"). The Executive's base
salary shall be payable in such installments as the Company regularly pays its
other salaried employees, subject to such deductions and withholdings as may be
required by law or by further agreement with the Executive.

b) PERFORMANCE BONUS. The Company will pay the Executive a bonus subject to the
successful completion of the objectives established for the Executive's
performance for each calendar year during the Term. The performance criteria
will be issued separately by the Compensation Committee with respect to each
calendar year during the Term, and may be changed, as may be mutually agreed
upon by the Executive and the Compensation Committee, from time to time, as
situations develop. Promptly after signing this Agreement, the Company will pay
to the Executive $150,000, which represents 75% of the Executive's target
performance bonus for calendar year 1999. The target performance bonus for the
balance of calendar year 1999 (pro-rated as required) and for subsequent
calendar years during the Term will be $450,000 or such greater amount as may be
determined by the Compensation Committee.

c) INCENTIVE STOCK OPTIONS. On October 1, 1999, the Company shall grant the
Executive options to purchase 50,000 shares of the Company's common stock
(the "Options") pursuant to the Company's Executive Stock Incentive Plan (the
"Plan"). Such Options shall be evidenced by an option agreement in such form
as is required by the Plan. Among other terms and provisions prescribed by
the Plan, the option agreement shall provide, subject to the terms of this
Agreement, that (i) the exercise price of the Options shall be the price per
share of the Company's common stock as reported by the NASDAQ Stock Market at
the close of business on the date of grant (October 1, 1999), (ii) the
Options shall not be exercisable after the expiration of ten (10) years from
the date such Options are granted, and (iii) the Options shall vest ratably,
monthly, over forty-eight (48) months, provided that, for each month's
vesting purposes, the

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Executive continues to be employed full time by the Company or one of its
subsidiaries during such month (other than in the case of a Termination Event
as defined in Section 5(d) hereof).

In addition, on October 1 of each subsequent year of the Term, the Company
shall grant the Executive options to purchase an additional 50,000 shares of
the Company's common stock pursuant to the Plan or another option plan of the
Company, such grant being subject to the terms of this Agreement and (A) the
achievement of the performance criteria to be established by the Compensation
Committee, (B) the Executive's continued employment at the time of grant
(other than in the case of a Termination Event, and (C) the options having an
exercise price equal to the closing price per share (as reported by the
NASDAQ Stock Market) of the Company's common stock on the date of grant.

d) VESTING OF STOCK OPTIONS. In the event of (i) a Change in Control (as
defined in Section 3(e) hereof), (ii) termination of the Executive's
employment by the Company or its successor for any reason other than for
Cause (as defined in Section 5(b) hereof), (iii) the Company's exercise of
its right of non-renewal as provided for in Section 2 hereof, (iv) the
Executive's termination of employment for Good Reason (as defined in Section
5(c) hereof), or (v) upon the occasion of the Executive's death or disability
during the Term (in all cases, while the Executive is in compliance with the
terms of this Agreement), the Company shall (A) immediately vest all of the
unvested stock options the Executive has received prior to the Date of
Termination (as defined in Section 5(h) hereof), (B) immediately grant and
vest all future grants of options to be made pursuant to Section 3(c) hereof
(the "Future Options"); and (C) immediately grant and vest any and all
options available to the Executive pursuant to the Two-Year Option Payout (as
defined in Section 5(d)(7) hereof). Such action shall be taken by the Company
as of the date of the Change in Control event, the Date of Termination or the
date on which the Company delivered its Non-Renewal Notice (the "Non-Renewal
Notice Date"), as applicable. In each case, the options granted pursuant to
clauses (B) and (C) above will have an exercise price equal to the closing
price per share (as reported by the NASDAQ Stock Market) of the Company's
common stock on the date of grant. In the event that the foregoing takes
place, subject to shareholder approval, if required, the Company shall
provide a loan to the Executive sufficient to allow him (or, in the case of
his death or disability, his estate, heirs or legal representatives) to
exercise all vested stock options and pay any required taxes to which the
Executive may be subjected as a result, with the terms of the loan to be no
less favorable than installment free for the duration, interest charged at
the applicable rate provided in Section 1274(d) of the Internal Revenue Code
of 1986, as amended, with a five (5) year balloon payment for interest and
principal.

e) CHANGE IN CONTROL. As used in this Agreement, "Change in Control" shall mean:
(i) the shareholders of the Company approve an agreement for the sale of all or
substantially all of the assets of the Company; or (ii) the shareholders of the
Company approve a merger or consolidation of the Company with any other
corporation (and the Company implements it), other than (A) a merger or
consolidation which would result in the voting securities of the Company
outstanding immediately prior thereto continuing to represent more than eighty
percent (80%) of the combined voting power of the voting securities of the
Company, or such surviving entity, outstanding immediately after such merger or
consolidation, or (B) a merger or consolidation effected to implement a
recapitalization of the Company (or similar transaction) in

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which no "person" (as defined below) acquires more than thirty percent (30%)
of the combined voting power of the Company's then-outstanding securities; or
(iii) any "person," as such term is used in Sections 13(d) and 14(d) of the
Securities Exchange Act of 1934, as amended (the "Exchange Act") (other than
(1) the Company or (2) any corporation owned, directly or indirectly, by the
Company or the shareholders of the Company in substantially the same
proportions as their ownership of stock of the Company), is or becomes the
"beneficial owner" (as defined in Rule 13d-3 under the Exchange Act),
directly or indirectly, of securities of the Company representing thirty
percent (30%) or more of the combined voting power of the Company's then
outstanding securities.

4. EMPLOYEE BENEFITS. The Executive shall be provided employee benefits,
including (without limitation) 401(k) and related plans, revenue bonus plan
participation, four weeks' paid vacation which can accumulate to a maximum of
eight (8) weeks, and life, health, accident and disability insurance under the
Company's standard plans, policies and programs available to employees in
accordance with the provisions of such plans, policies, and programs.

5. TERMINATION.

a) BASIS FOR TERMINATION OTHER THAN FOR GOOD REASON. The Executive's employment
with the Company may be terminated by the Company at any time for Cause. In
the event of a termination for Cause, all salary and benefits otherwise
payable to the Executive shall cease immediately upon such termination.
Termination by the Company or its successors in interest for any reason other
than Cause shall constitute a breach of this Agreement and, notwithstanding
any such breach or any dispute concerning Cause, the Company shall make the
Termination Payments to the Executive pursuant to Section 5(d) hereof. In
addition, the Executive may terminate his employment at any time without Good
Reason, provided that the Executive shall have given the Company at least
thirty (30) days' (but not more than ninety (90) days') prior written notice
of such termination. In the event of termination by the Executive without Good
Reason, the Executive's salary and benefits shall continue during the notice
period specified by the Executive and shall cease thereafter. The Executive or
the Company may exercise their right of non-renewal by delivering a
Non-Renewal Notice. In the event the Executive delivers a Non-Renewal Notice,
the Executive's salary and benefits shall continue until the expiration of the
Term. In the event the Company delivers a Non-Renewal Notice, the Company
shall make the Termination Payments to the Executive pursuant to Section 5(d)
hereof.

b) DEFINITION OF CAUSE. The Company shall have Cause for termination of the
Executive's employment by reason of (i) any breach by the Executive of his
agreement not to compete pursuant to Section 6 hereof, (ii) the Executive
committing an act in contravention of action taken by the Board which materially
and adversely affects the Company and which constitutes willful misconduct on
his part, (iii) the Executive's conviction of the commission of a felony which,
at the time of commission, has a material adverse effect on the Company, (iv)
the Executive's voluntary resignation without Good Reason and without having
given the Company at least thirty (30) days' prior written notice, or (v) any
material breach by the Executive of this Agreement which is not cured within
thirty (30) days after notice is given to the Executive in accordance with this
Agreement.

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c) DEFINITION OF GOOD REASON TERMINATION. The Executive may terminate his
employment at any time for Good Reason. For purposes of this Agreement, Good
Reason shall mean any of the following taking place during the Term:

         (i) the diminution or change, without the Executive's written consent,
         of his positions, authority, duties or responsibilities as indicated in
         Section 1(a) hereof;

         (ii) the Executive not being elected to, or being removed from, the
         Board or, without his consent, any committee thereof;

         (iii) the Company requiring the Executive, without his written consent,
         to be based at any office or location or to relocate to any location
         other than the Company's headquarters which shall be located in the
         Washington, D.C. area;

         (iv) any Change in Control where, regardless of whether the Company is
         the surviving entity, the Executive is not elected as, or chooses not
         to serve as (in his sole and absolute discretion), the Chief Executive
         Officer of such surviving entity; or

         (v) any material breach by the Company of this Agreement which is not
         cured within thirty (30) days after notice is given to the Company in
         accordance with this Agreement.

d) TERMINATION PAYMENTS. In the event (i) the Company exercises its right of
non-renewal as provided in Section 2 hereof, or (ii) the Executive's employment
is terminated (A) by the Executive for Good Reason, (B) by the Company for any
reason other than for Cause or (C) due to the Executive's death or disability
(each of the circumstances in (i) and (ii) of this Section 5(d) being known as a
"Termination Event"), the Company shall pay and give to the Executive (or, in
the case of his death, his estate, heirs or legal representatives) the following
(collectively, the "Termination Payments"), to be paid or given, with respect to
all items other than the items in clause (3) below, within thirty (30) days of
the Date of Termination (except with respect to items 6 and 7 below which will
be granted and given in accordance with Section 3(d) hereof):

     (1)      a lump sum representing the Executive's base salary as provided in
              Section 3(a) hereof, giving effect to all annual increases thereto
              provided for in Section 3(a) hereof, for the longer of (y) the
              remainder of the Term or (z) two (2) years after the Date of
              Termination (and assuming for purposes of this clause that such
              two (2) year period, if applicable, is included in the
              definition of "Term" for purposes of calculating any amounts
              due hereunder (the "Two-Year Application")), plus all other
              accrued and unpaid amounts due to the Executive as of the Date
              of Termination (including, without limitation, accrued vacation
              pay and reimbursement of business expenses);

     (2)      all annual bonus amounts, as provided for in Section 3(b) hereof,
              calculated on the assumption that all performance criteria
              objectives would have been exceeded, such that the Executive would
              receive the maximum bonus established by the Compensation
              Committee to which the Executive would have been entitled had he

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              remained employed by the Company for the longer of (y) the
              remainder of the Term or (z) two (2) years after the Date of
              Termination (assuming for purposes of this clause the Two-Year
              Application);

     (3)      continuation of all life insurance and health benefits, disability
              insurance and benefits and reimbursement theretofore being
              provided to the Executive and/or his family, or such other more
              favorable benefits applicable to any senior executive officer of
              the Company, to which the Executive would have been entitled had
              he remained employed by the Company for the longer of (y) the
              remainder of the Term or (z) two (2) years after the Date of
              Termination (assuming for purposes of this clause the Two-Year
              Application);

     (4)      to the extent the continuation of any such benefit under clause
              (3) is not possible under applicable law, and for all other fringe
              benefits theretofore being provided to the Executive and/or his
              family not included in clause (3), or other more favorable
              fringe benefits applicable to any senior executive officer of
              the Company, a lump sum equal to the cost to the Executive of
              replacing all such benefits to which he would have been
              entitled had he remained employed by the Company for the longer
              of (y) the remainder of the Term or (z) two (2) years after the
              Date of Termination (assuming for purposes of this clause the
              Two-Year Application);

     (5)     Company contributions, to the extent permitted by applicable law,
              to a SEP-IRA, Keogh or other retirement mechanism reasonably
              selected by the Executive sufficient to provide the same level of
              retirement benefits the Executive would have received if he had
              remained employed by the Company for the longer of (y) the
              remainder of the Term or (z) two (2) years after the Date of
              Termination (assuming for purposes of this clause the Two-Year
              Application); provided, however, that the Company shall make up
              the difference in cash payments directly to the Executive to the
              extent that applicable law would not permit it to make such
              contributions;

     (6)      the vested options provided in Section 3(d) (including without
              limitation all Future Options);

     (7)      in the event the Date of Termination is after October 1, 2001, an
              immediate, vested grant of options pursuant to the Plan or another
              option plan of the Company (the "Two-Year Option Payout") to
              purchase (y) 100,000 shares of the Company's common stock less (z)
              any shares issuable upon exercise of any previously ungranted
              options that would otherwise be required to be accelerated under
              the provisions of Section 3(d)(B) hereof; and

     (8)      the Company will vest, no later than the Date of Termination, all
              other equity-based awards the Executive has or would have received
              during the Term (assuming for purposes of this clause the Two-Year
              Application).

e) TAX PROVISIONS. In the event that any payments under this Agreement or any
other compensation, benefit or other amount from the Company for the benefit of
the Executive are


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subject to the tax imposed by Section 4999 of the Internal Revenue Code of
1986, as amended (the "Code") (including any applicable interest and
penalties, the "Excise Tax"), no such payment ("Parachute Payment") shall be
reduced (except for required tax withholdings) and the Company shall pay to
the Executive by the earlier of the date such Excise Tax is withheld from
payments made to the Executive or the date such Excise Tax becomes due and
payable by the Executive, an additional amount (the "Gross-Up Payment") such
that the net amount retained by the Executive (after deduction of any Excise
Tax on the Parachute Payments, taxes based upon the Tax Rate (as defined
below) upon the payment provided for by this Section 5(e) and Excise Tax upon
the payment provided for by this Section 5(e)), shall be equal to the amount
the Executive would have received if no Excise Tax had been imposed. A Tax
counsel chosen by the Company's independent auditors, provided such person is
reasonably acceptable to the Executive ("Tax Counsel"), shall determine in
good faith whether any of the Parachute Payments are subject to the Excise
Tax and the amount of any Excise Tax, and Tax Counsel shall promptly notify
the Executive of its determination. The Company and the Executive shall file
all tax returns and reports regarding such Parachute Payments in a manner
consistent with the Company's reasonable good faith determination. For
purposes of determining the amount of the Gross-Up Payment, the Executive
shall be deemed to pay taxes at the Tax Rate applicable at the time of the
Gross-Up Payment. In the event that the Excise Tax is subsequently determined
to be less than the amount taken into account hereunder at the time a
Parachute Payment is made, the Executive shall repay to the Company promptly
following the date that the amount of such reduction in Excise Tax is finally
determined the portion of the Gross-Up Payment attributable to such reduction
(without interest). In the event that the Excise Tax is determined to exceed
the amount taken into account hereunder at the time a Parachute Payment is
made (including by reason of any payment the existence or amount of which
cannot be determined at the time of the Gross-Up Payment), the Company shall
pay the Executive an additional amount with respect to the Gross-Up Payment
in respect of such excess (plus any interest or penalties payable in respect
of such excess) at the time that the amount of such excess is finally
determined. The Company shall reimburse the Executive for all reasonable
fees, expenses, and costs related to determining the reasonableness of any
Company position in connection with this paragraph and preparation of any tax
return or other filing that is affected by any matter addressed in this
paragraph, and any audit, litigation or other proceeding that is affected by
any matter addressed in this Section 5(e) and an amount equal to the tax on
such amounts at the Executive's Tax Rate. For the purposes of the foregoing,
"Tax Rate" means the Executive's effective tax rate based upon the combined
federal and state and local income, earnings, Medicare and any other tax
rates applicable to the Executive, all at the highest marginal rate of
taxation in the country and state of the Executive's residence on the date of
determination, net of the reduction in federal income taxes which could be
obtained by deduction of such state and local taxes.

f) PAYMENTS TO BE MADE DESPITE DISPUTES. The Company shall make all payments to
the Executive provided for under this Section 5 notwithstanding any dispute
which may exist between the Executive and the Company as to whether termination
of employment was for Good Reason or was with or without Cause or was with
regard to the Company's delivery of its Non-Renewal Notice; provided, however,
that Executive agrees to repay to the Company (without interest) any amounts
paid to the extent that a court of competent jurisdiction enters a final,
non-appealable order that the Executive is not entitled to any such amounts.

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(g) NOTICE OF TERMINATION. Any termination of the Executive's employment during
the Term by the Company for any reason, or by the Executive for Good Reason, or
by the Executive without Good Reason shall be communicated by Notice of
Termination to the other party hereto given in accordance with Section 15 of
this Agreement. For purposes of this Agreement, a "Notice of Termination" means
a written notice which (i) indicates the specific termination provision in this
Agreement relied upon, (ii) to the extent applicable, sets forth in reasonable
detail the facts and circumstances claimed to provide a basis for termination of
the Executive's employment under the provision so indicated, and (iii) if
applicable, specifies a termination date (which date shall not be more than
ninety (90) days after the date of such notice). The failure by the Executive or
the Company to set forth in the Notice of Termination any fact or circumstance
which contributes to a showing of Good Reason or Cause shall not waive any right
of the Executive or the Company hereunder or preclude the Executive or the
Company, as applicable, from asserting such fact or circumstance in enforcing
the Executive's or the Company's rights hereunder. Any delivery of a Non-Renewal
Notice shall be given in accordance with Section 15 of this Agreement as well as
Section 2 of this Agreement.

(h) DATE OF TERMINATION. For purposes of this Agreement, "Date of Termination"
means (i) if the Executive's employment is terminated by reason of death, the
date of death; (ii) if the Executive's employment is terminated under any other
circumstances, the date of receipt of the Notice of Termination by the party
being so notified or any later date specified therein; provided, however, that
the specified date shall not be more than ninety (90) days after the date of
such notice; and (iii) if the Company or the Executive delivers a Non-Renewal
Notice, the date that is the end of the Term. For purposes of this Agreement,
the Executive will be deemed to be employed through the end of the calendar day
on the Date of Termination.

6. AGREEMENT NOT TO COMPETE.

a) In consideration of the Executive's employment pursuant to this Agreement and
for other good and valuable consideration, the receipt and adequacy of which is
hereby acknowledged, the Executive covenants and agrees with the Company that,
during the Term, he shall not, without the prior written consent of the Company,
either for himself or for any other person, firm or corporation, manage,
operate, control, participate in the management, operation or control of or be
employed by any other person or entity which is engaged in providing
Internet-related network or communications services competitive with the
Internet-related network or communication services offered to customers by the
Company; provided, however, that this Section 6(a) shall not prohibit the
Executive from serving on boards of directors of such other companies as may be
approved from time to time by the Board. This non-compete provision shall
terminate immediately upon the Date of Termination.

b) The Company will notify the Executive in writing if it becomes aware of any
breach or threatened breach of any of the provisions in Section 6(a) hereof, and
the Executive shall have thirty (30) days after receipt of such notice in which
to cure or prevent the breach, to the extent that he is able to do so. The
Executive and the Company acknowledge that any breach or threatened breach by
him of any of the provisions in Section 6(a) hereof cannot be remedied by the
recovery of damages, and agree that in the event of any such breach


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or threatened breach which is not cured with such thirty (30) day period, the
Company may pursue injunctive relief for any such breach or threatened breach.

7. INTELLECTUAL PROPERTY; OWNERSHIP OF WORK PRODUCT. All copyrights, patents,
trade secrets, or other intellectual property rights associated with any ideas,
concepts, techniques, inventions, processes, or works of authorship developed or
created by the Executive during the course of performing the Company's work
(collectively the "Work Product") shall belong exclusively to the Company and
shall, to the extent possible, be considered a work made for hire for the
Company within the meaning of Title 17 of the United States Code. The Executive
hereby automatically assigns, and shall assign at the time of creation of the
Work Product, without any requirement of further consideration, any right,
title, or interest he may have in such Work Product, including any copyrights or
other intellectual property rights pertaining thereto. Upon request of the
Company, the Executive shall take such further actions, including execution and
delivery of instruments of conveyance, as may be appropriate to give full and
proper effect to such assignment.

8. TRANSFERABILITY.

a) This Agreement is personal to the Executive and without the prior written
consent of the Company shall not be assignable by the Executive otherwise than
by will or the laws of descent and distribution. This Agreement shall inure to
the benefit of and be enforceable by the Executive's legal representatives.

b) This Agreement shall inure to the benefit of and be binding upon the Company,
its successors and assigns.

c) The Company shall require any successor (whether direct or indirect, by
purchase, merger, consolidation, share exchange or otherwise) to all or
substantially all of the business and/or assets of the Company to expressly
assume in writing and agree to perform this Agreement in the same manner and to
the same extent that the Company would be required to perform it if no such
succession had taken place. As used in this Agreement, "Company" shall mean the
Company as defined herein and any successor to its businesses and/or assets as
aforesaid that assumes and agrees to perform this Agreement by operation of law,
or otherwise. A failure of the Company to cause a successor to assume this
Agreement in any such transaction shall be a breach of this Agreement by the
Company.

9. NONEXCLUSIVITY OF RIGHTS. Nothing in this Agreement shall prevent or limit
the Executive's continuing or future participation in any benefit, plan,
program, policy or practice provided by the Company and for which the Executive
may qualify (except with respect to any benefit to which the Executive has
waived his rights in writing), nor shall anything herein limit or otherwise
affect such rights as the Executive may have under any other contract or
agreement entered into after the date of this Agreement with the Company.
Amounts which are vested benefits or which the Executive is otherwise entitled
to receive under any benefit, plan, policy, practice or program of, or any
contract or agreement entered into with, the Company shall be payable in
accordance with such benefit, plan, policy, practice or program or contract or
agreement except as explicitly modified by this Agreement.

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10. FULL SETTLEMENT; MITIGATION. The Company's obligation to make the payments
provided for in this Agreement and otherwise to perform its obligations
hereunder shall not be affected by any set-off, counterclaim, recoupment,
defense or other claim, right or action which the Company may have against the
Executive or others. In no event shall the Executive be obligated to seek other
employment or take any other action by way of mitigation of the amounts
(including amounts for damages for breach) payable to the Executive under any of
the provisions of this Agreement, and such amounts shall not be reduced whether
or not the Executive obtains other employment. If there occurs a dispute between
the Executive and the Company as to the interpretation, terms, validity or
enforceability of this Agreement (including any dispute about the amount of any
payment pursuant to this Agreement), the Company agrees to pay all legal fees
and expenses which the Executive may reasonably incur as a result of any such
dispute, promptly after receipt of invoices for such fees and expenses.

11. NO WAIVER. The Executive's or the Company's failure to insist upon strict
compliance with any provision of this Agreement or the failure to assert any
right the Executive or the Company may have hereunder, including, without
limitation, the right of the Executive to terminate his employment for Good
Reason pursuant to Section 5(c) hereof, or the right of the Company to terminate
the Executive's employment for Cause pursuant to Section 5(a) hereof, shall not
be deemed to be a waiver of such provision or right or any other provision or
right of this Agreement.

12. SEVERABILITY. The provisions of this Agreement will be deemed severable, and
if any part of any provision is held to be illegal, void, voidable, invalid,
nonbinding, or unenforceable in its entirety or partially or as to any party,
for any reason, such provision may be changed, consistent with the intent of the
parties hereto, to the extent reasonably necessary to make the provision, as so
changed, legal, valid, binding, and enforceable. If any provision of this
Agreement is held to be illegal, void, voidable, invalid, nonbinding, or
unenforceable in its entirety or partially or as to any party, for any reason,
and if such provision cannot be changed consistent with the intent of the
parties hereto to make it fully legal, valid, binding, and enforceable, then
such provision will be stricken from this Agreement, and the remaining
provisions of this Agreement will not in any way be affected or impaired, but
will remain in full force and effect.

13. PRIOR AGREEMENTS. This Agreement supersedes and replaces any prior or
contemporaneous agreements, negotiations, correspondence, undertakings and
communications of the Executive, the Company or any predecessor or subsidiary
thereof with respect to employment of the Executive.

14. AMENDMENTS. This Agreement may not be amended, modified, repealed, waived or
discharged except by an agreement in writing signed by the party against whom
enforcement of such amendment, modification, repeal, waiver or discharge is
sought. No person, other than pursuant to a resolution adopted by three-quarters
vote of the entire Board shall have authority on behalf of the Company to agree
to amend, modify, repeal, waive or discharge any provision of this Agreement or
anything in reference thereto. For purposes of this Section 14, the Executive



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shall not be counted for purposes of such vote, but shall be counted for
determining the number of Directors constituting the entire Board.

15. NOTICES. All notices required to be given or which may be given under this
Agreement shall be in writing delivered in accordance with one or more of the
following and shall be deemed received upon the earlier of (i) when it is
personally delivered to the party, (ii) three (3) days after having been mailed
by certified mail, postage prepaid, return receipt requested, or (iii) two (2)
days after having been sent via overnight delivery by a recognized overnight
delivery service, in each case addressed to the party intended to be notified at
the address of such party as set forth in the records of the Company or such
other address as such party may designate in writing to the other.

16. GOVERNING LAW. THIS AGREEMENT SHALL BE SUBJECT TO, GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REFERENCE TO ITS
PRINCIPLES OF CONFLICTS OF LAW.

17. COUNTERPARTS. This Agreement may be executed in one or more counterparts,
each of which shall be deemed an original and all of which shall be one and the
same instrument.

                                   * * *



















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         IN WITNESS WHEREOF, the Executive and, pursuant to due authorization
from its Board of Directors, the Company have caused this Agreement to be
executed as of the day and year first above written.

PSINET INC.

By:      /s/ Harold S. Wills
         ------------------------------
         Name:  Harold S. Wills
         Title: President and Chief Operating Officer

EXECUTIVE

/s/ William L. Schrader
------------------------------------
William L. Schrader















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