Document:

EXHIBIT 4.1
ENGAGEMENT AGREEMENT

                      [LETTERHEAD OF VINTAGE FILINGS, LLC]

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

April 15, 2005
Charles Pollock

                         RE: CONTRACT FOR EDGAR SERVICES

      I would  like to take  this  opportunity  to  introduce  you to a  package
program of EDGAR services from Vintage  Filings,  LLC as a method of saving your
public company the typical costs associated with EDGAR filings and SEC reporting
requirements.

I.    Consulting Services

      Vintage  Filings  hereby agrees to provided the following  consulting  and
advisory services to your Company:  review your Company's filing requirements of
Sarbanes Oxley,  determine a cost effective plan to edgarize the filings you are
likely to require  over the next 12 months.  We will  provide  you,  on a timely
basis,  with updates  regarding SEC edgar filing  software and new  developments
with regard to SEC filing forms and HTML  requirements.  If needed, we can train
the Company how to file  Section 16  reporting  requirements  (Forms 3, 4 and 5)
on-line and assist in obtaining  edgar access codes for the Company's  officers,
directors and 10% shareholders.  We will also assist in formatting filings which
may include Forms 3, 4, 5, 13Gs,  13Ds,  S-8, 8K, 10Q, 10K, S-3,  SB-2,  S-2 and
proxy  statements.  In analyzing  your expected costs we have taken into account
the typical costs associated with

-  text and tabular pages

-  amended proofs and changed pages / expedited fees
<PAGE>

-  test filing and real time live filing fees

-  all email distributions of PDF EDGAR proofs

-  all facsimile transmissions of EDGAR proofs

-  all 12b25 and NT-10K extension forms

-  SEC filing of a Form ID

II.   Fees

As part of this Agreement,  we agree to provide the above-described,  unlimited,
edgarizing  services for the Company's SEC filings for 12 months.  In return for
these  services,  you hereby agree to issue  1,500,000  shares of the  Company's
Common Stock.

Such  shares  must be  registered  on a Form S-8  within  ten days from the date
hereof.

We  would   appreciate  the   opportunity  to  further   develop  our  long-term
relationship  and be of service  to you and your  Company.  Please  feel free to
contact  us at (212)  730-4302  or via  email at  efilings@vfilings.com.  Please
confirm  agreement  by signing and faxing to  646.349.9655.  We look  forward to
beginning of a mutually beneficial relationship.

                                                 Best wishes,

                                                 Seth A. Farbman, Esq.
                                                 Co-Chairman and PresidentThe KNOCKOUT GROUP, Inc.

            Assignment of Interest in Pending Patents and Trademarks

The Undersigned agrees to assign all interest in the three pending patent
applications filed on behalf of the company with the United States Patent Office
and all interest in the "Encapsulation(TM)" for a sum of $400,000 in cash plus
354,608 shares of common stock of The Knockout Group. The Undersigned is to
receive $200,000 in cash on or before January 15, 2005, with the balance to be
paid over the succeeding 12 month period, on or before December 31, 2005.

This agreement covers the initial three patents applications - USPTO Serial
numbers:

      o     1406-002: Method of Formulating a Cleaning Composition in a
            Concentrated Form - Serial No: 10/868,649
      o     1406-003: A Cleaning Composition in a Concentrated Form - Serial No.
            10/868,541
      o     1406-004: Method of Formulating a Cleaning Composition for Use in
            Cleaning - Serial No. 10/868,464

In exchange for these payments, the Undersigned also agrees not to develop or
contribute any intellectual property to any other company, either now or in the
future that competes in the "Cleaning" products segment. The payments are to be
allocated 90% to the three patents and 10% to the Encapsulation(TM).

By:                      /s/ Isaac H. Horton
                        ------------------------------------------------

Name:                    Isaac H. Horton
                        ------------------------------------------------

The Knockout Group, Inc.

By:                      /s/ John Bellamy
                        ------------------------------------------------

Title:                              CEO
                        ------------------------------------------------Additional
Rider attached to and made a part of Lease dated April __, 2005, between
35th STREET
ASSOCIATES, as Owner, and GURUNET CORPORATION, as Tenant, covering Suite 1101 in
the building at 237 West 35th Street,
New York, New York (“Additional Rider”).

 

	1.  	
      In
      the event of any conflict or inconsistency between the printed form of the
      Lease (and the Rider thereto) to which this Additional Rider is attached,
      the provisions of this Additional Rider shall
govern.

 

	2.  	
      Permitted
      Use.
      Article 2 of the printed portion of the Lease is revised to read as
      follows: “Tenant shall use and occupy the demised premises for executive
      and general office purposes provided, however, that such permitted use
      shall not include use of the leased premises for manufacturing, check
      cashing or the sale of precious jewelry.”

 

	3.  	
      Initial
      Tenant Work.
      Owner approves the following initial tenant work (“Initial Tenant Work”)
      to be performed by Tenant:

 

	 	
      (i)
	
      expansion
      of existing reception area;

 

	 	
      (ii)
	
      installation
      of walls/dividers to separate reception area from balance of space to
      provide more privacy;

 

	 	
      (iii)
	
      installation
      of conference room behind the expanded reception area;
  and

 

	 	
      (iv)
	
      installation
      of water cooler, coffee machine, refrigerator and microwave oven in
      pantry/kitchen.

 

In the
event that any of the Initial Tenant Work shall involve permanent changes or
alterations to the ceiling or building systems, such changes shall be subject to
Owner’s consent which shall not be unreasonably withheld or delayed. Owner
hereby approves Empire State Contracting Corp. as the contractor for the Initial
Tenant Work. If Tenant selects another licensed contractor to perform the
Initial Tenant Work, such contractor shall be subject to Owner’s consent, not to
be unreasonably withheld or delayed.

 

Subject
to Owner’s consent which shall not be unreasonably withheld or delayed, Tenant
shall have the right, at its expense, to extend water service to the pantry
kitchen of the demised premises and install a kitchen sink and dishwasher in the
pantry kitchen (“Supplemental Kitchen Improvement Work”).

 

Tenant
shall not be required to remove any of the Initial Tenant Work and/or the
Supplemental Kitchen Improvement Work upon the expiration or termination of the
Lease.

 

Article
47(E) is deleted in its entirety.

 

Article
47(F) is amended by changing $10,000.00 to $50,000.00.

 

Except
for the Initial Tenant Work hereby approved by Owner and non-structural
alterations permitted under Article 47(F), all other alterations or improvements
to the demised premises which Tenant desires to make shall be subject to Owner’s
consent which shall not be unreasonably withheld or delayed.

 

 

	4.  	
      Maintenance/Cleaning.
      Owner approves Tenant hiring any of the existing contractors servicing
      tenants in the building for cleaning and rubbish removal. The lien waiver
      requirement in Article 44(A) of the Lease is
omitted.

 

	5.  	
      Interruption
      of Services.
      In the event that the building services are interrupted such that Tenant
      is unable to use and occupy the demised premises for the intended purpose
      and such interruption continues for more than five (5) consecutive
      business days, all rent shall be fully abated until such time as the
      building services are restored such that Tenant can resume use and
      occupancy of the demised premises.

 

	6.  	
      ADA.
      Owner shall be responsible, at its cost, for complying with the Americans
      With Disabilities Act (“ADA”)
      with
      respect to all of the common/public areas of the building including,
      without limitation, all corridors and
lavatories.

 

	7.  	
      Damage/Destruction.
      In the event that the building or a portion thereof is damaged or
      destroyed such that Tenant shall be unable to use and occupy the entire
      demised premises and the estimated restoration period is more than 4
      months from the date of the casualty (or if the actual restoration work is
      not completed within such 4 months), Tenant shall have the right to
      terminate the Lease upon written notice to
Owner.

 

	8.  	
      Assignment
      and Subletting.
      If Tenant is a public company, the transfer of shares or interests in
      Tenant shall not be deemed an assignment of the Lease requiring Owner’s
      consent.

 

The first
sentence of Article 76 A 1A reading “The proposed assignee or subtenant is of
comparable character or financial worth with respect to the overtenant;” shall
be deleted.

 

In the
event Tenant desires to assign the Lease or sublease the demised premises or a
portion thereof, Tenant shall have the right to market same directly without the
assistance of a broker. In the event Tenant desires to retain a broker to assist
in any such assignment or subletting transaction, Tenant agrees to retain the
building’s managing agent, Kaufman/Adler Realty Co., as exclusive broker upon
mutually acceptable terms for a period not to exceed thirty (30) days after
which Tenant shall have the right, at its option, to retain another broker on an
exclusive basis.

 

Owner
agrees that it will not unreasonably withhold or delay its consent to any
proposed assignment of the Lease or sublease of the demised premises or a
portion thereof.

 

Article
76(A)(7) is modified to provide that the maximum aggregate fees or charges to be
imposed with respect to any assignment or sublease transaction shall be
$750.00.

 

Article
76(B) is revised to provide that Owner shall only have the right to terminate
the Lease if Tenant subleases more than fifty (50%) percent of the rentable area
at the Demised premises.

 

	9.  	
      Electricity.
      Except for the provision of the Electric Rider obligating Tenant to pay
      Owner the sum of $9,000.00 per annum, payable in monthly installments of
      $750.00 in respect of the consumption of electricity, the balance of the
      Electric Rider is omitted. In the event Tenant desires to make alterations
      or improvements to the demised premises to increase the electrical
      capacity serving the demised premises, Owner shall have the right, as a
      condition to granting its approval thereto (which approval shall not be
      unreasonably withheld or delayed), to require that the electrical
      consumption at the demised premises be surveyed in order to determine a
      revised electric charge for the demised premises to reflect Tenant’s
      actual electric consumption.

 

 

	10.  	
      Owner
      Access.
      Any access by Owner to the demised premises shall only be during
      reasonable business hours upon reasonable prior notice to Tenant (except
      in the case of an emergency). Such access shall be conducted in a manner
      that minimizes disruption of Tenant’s use and occupancy of the demised
      premises.

 

	11.  	
      Default.
      Article 53(C) of the Lease is omitted.

 

Tenant’s
failure to occupy the Demised premises shall not be deemed a default provided
that it is paying rent and otherwise complying with the terms of the
Lease.

 

	12.  	
      Building
      Services.
      Owner represents that as of the Commencement Date, all building systems
      including, without limitation, the heating, ventilation and air
      conditioning system, the plumbing system, the electrical system and the
      elevator system will be in good working order. Tenant is leasing the
      Demised premises in its “As Is” condition except for latent defects;
      provided that Owner shall be responsible for installing, prior to the
      Commencement Date, the radiator missing in one of the offices and radiator
      covers on all radiators in the demised
premises.

 

Owner
represents that the building is wired for telephone and internet service and
that Tenant shall have the right to connect into the building’s telephone and
internet service utilities at a panel box located in the corridor on the
11th floor of
the building. Tenant shall be responsible, at its expense, for the cost of
extending telephone/internet wiring from the 11th floor
corridor panel box to the demised premises and shall not be required to remove
any such wiring at the expiration or termination of the Lease. Tenant shall have
the right to select its own telephone and internet service providers; it being
understood and agreed that Tenant can access the existing telephone and internet
utilities without being obligated to use a designated service
provider.

 

	13.  	
      Possession.
      Article 24 is omitted.

 

	14.  	
      Notices.
      Any notice given by facsimile shall require a printed confirmation sheet
      evidencing the transmission and a copy of any such facsimile notice shall
      also be sent by reputable overnight courier service with next business day
      delivery specified.

 

Notices
to Tenant shall be sent to Tenant at the demised premises, Attention: Jeff
Cutler, with duplicate copies sent to:

 

Guru Net
Corporation

Jerusalem
Technology Park

Building
98

Jerusalem
91481 Israel

Attention:
Caleb Chill, Esq.

Facsimile
No.: 011 972 2 649 5001

and
to

Sills
Cummis Epstein & Gross P.C.

30
Rockefeller Center

New York,
New York 10112

Attention:
Edwin Weinberg, Esq.

Facsimile
No.: (212) 643-6550

 

Tenant
shall have the right to change any of the foregoing notice parties by giving
notice thereof to Owner. Tenant’s attorneys shall have the right to give notices
on behalf of Tenant.

 

 

	15.  	
      Sprinklers.
      Tenant shall not be responsible for upgrading or altering sprinkler
      service unless such upgrade or alteration results solely from alterations
      or improvements made to the demised premises by Tenant (other than the
      Initial Tenant Work).

 

	16.  	
      Building
      Access.
      Tenant shall have access to the demised premises (including elevator
      service) twenty-four (24) hours a day, seven (7) days a week. Owner agrees
      that the demised premises is served by a building wide heating system that
      functions 24 hours a day, 7 days a week with the understanding that the
      temperature setting during non-business hours is reduced but not
      eliminated.

 

	17.  	
      Security
      Deposit.
      Owner agrees that the security deposit shall be refunded within ten (10)
      business days following the expiration or termination of the Lease. If
      Owner sells the building, then Owner shall be released from its obligation
      with respect to the security deposit provided that it actually delivers
      the security deposit to the new owner and the new owner assumes, in
      writing, the obligation to comply with the provisions of the
      Lease.

 

	18.  	
      Plate
      Glass.
      Tenant shall only be responsible for replacing plate glass if it is
      damaged or broken by Tenant or its employees or
agents.

 

	19.  	
      Estoppel
      Certificate.
      The estoppel provisions in Articles 38 and 56 shall be mutual as to both
      Owner and Tenant.

 

	20.  	
      Building
      Director/Signs.
      Owner hereby consents to Tenant installing the name of Tenant and any
      affiliated companies and their respective logos on the entry door to the
      demised premises. Owner agrees that Tenant shall have the right to five
      (5) listings on the building’s directory without
charge.

 

	21.  	
      Locks.
      Tenant shall have the right to install new locks on the entry doors to the
      demised premises.

 

	22.  	
      Freight
      Elevator.
      Owner agrees that freight elevator service is available without charge
      during the building’s operating hours. Tenant shall have the right to move
      into the demised premises during the building’s operating hours without
      any freight elevator charge being imposed.

 

	23.  	
      Real
      Estate Taxes.
      Owner represents that the building is fully assessed and does not benefit
      from any tax abatement or similar program. Tenant shall only be required
      to contribute to Owner’s cost of contesting real estate taxes to the
      extent that Owner is successful; provided that the amount of such
      contribution by Tenant shall not exceed the actual benefit received by
      Tenant.

 

	24.  	
      Brokers.
      In the 5th
      line of Article 46, after the word “agent”, insert “who has dealt with
      Tenant (other than Owner/Kaufman Adler Realty Co.)”. Owner agrees that it
      shall pay any commission owing to Kaufman/Adler Realty Co. with respect to
      this Lease.

 

	25.  	
      Late
      Charge.
      Article 52(A) is revised to reduce the late charge to four (4%)
      percent.

 

	26.  	
      Holdover.
      Article 55 is revised to reduce the per diem holdover rent to 150% of the
      per diem rent and additional rent payable under the Lease for the last
      year of the term.

 

 

 

	27.  	
      Indemnification.
      Articles 62 and 67 are revised to exclude consequential damages from
      Tenant’s indemnity. The references to “counsel fees” in Article 62 shall
      be revised to read “reasonable counsel fees”. On the tenth (10th)
      line of Article 62 after the words “demised premises” insert the words “by
      the Tenant”.

 

	28.  	
      Local
      Laws,
      Owner agrees that Tenant’s maximum contribution obligation under
      Article 66 during the Lease term shall be $2,500.00 provided that
      Tenant shall have no obligation to contribute to any expenses relating to
      ADA with respect to public/common areas of the
building.

 

	29.  	
      Air
      Conditioning.
      Owner represents that the demised premises has a new air conditioning unit
      serving only the demised premises which can be controlled solely by the
      Tenant. Owner shall be responsible for the maintenance and repair of the
      air conditioning unit during the first year of the Lease term. Thereafter,
      Tenant shall obtain and maintain the service contract provided for in
      Article 68(b). Provided that Tenant obtains and maintains the air
      conditioning service contract referenced above, Owner will be responsible
      for any replacement of the air conditioning unit should such unit
      fail.

 

	30.  	
      Tenant
      Stipulation.
      Article 73(3) of the Lease shall be omitted. The notice provided for in
      Article 73(2) of the Lease shall be sent to the parties set forth in
      Paragraph 14 of this Additional Rider.

 

	31.  	
      Owner
      Insurance.
      Article 79 of the Lease shall be omitted.

 

	32.  	
      Access
      Cards.
      Owner shall provide Tenant with five (5) key access cards without
      charge.

 

	33.  	
      Right
      to Cancel.
      Article 82 is revised to provide that Tenant shall have the right to
      cancel the Lease at any time during the last two (2) years of the Lease
      term (i.e.: commencing May 1, 2008) upon ninety (90) days prior
      written notice by Tenant to Owner. The parties agree that the unamortized
      amount of free rent and leasing commissions if the Lease is terminated
      effective May 1, 2008 is $9,616.13; provided, however, that this amount
      shall reduce by the monthly amount of $400.67 for each and every month
      following May 1, 2008. To illustrate, in the event that the Lease is
      terminated effective May 1, 2009, the amount of unamortized free rent and
      leasing commissions payable to Owner shall be $4,808.07. In addition, in
      the event Tenant exercises its right to terminate the Lease pursuant to
      Article 82, Tenant agrees to forfeit its security deposit paid to Owner in
      the amount of $18,668.24.

 

	34.  	
      Asbestos.
      Owner represents and warrants to Tenant that the demised premises is free
      of asbestos. Within sixty (60) days of the date hereof, Owner will deliver
      to Tenant a Form ACP-5 confirming the
foregoing.

 

35TH STREET
ASSOCIATES

By:       

Name:      

Title:      

GURUNET
CORPORATION

By:        

Name:      

Title:

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