Document:

<PAGE>
                                                                   EXHIBIT 10.8

                            LEASE AMENDING AGREEMENT

         THIS AGREEMENT is dated the 15th day of September, 1989.

BETWEEN:

                           GUARSEL PARTNERSHIP

                           (hereinafter called the "Landlord")

                                                              OF THE FIRST PART;
                           - and -

                           GEAC CANADA LIMITED

                           (hereinafter called the "Tenant")

                                                             OF THE SECOND PART.

     WHEREAS by a lease dated the 28th day of February, 1989 (the "Lease"), the
Landlord leased to the Tenant for and during a term (the "Term") of ten (10)
years commencing on the 1st day of May, 1989, certain premises, (the "Leased
Premises"), comprising a Rentable Area of twenty-five thousand two hundred and
eighty-six (25,286) square feet as more particularly described and delineated in
the Lease located in the building (the "Building") situate in Markham Corporate
Campus and municipally known as 11 Allstate Parkway, Markham, Ontario.

     AND WHEREAS the Landlord and the Tenant have agreed to amend the Lease in
accordance with the terms and conditions hereinafter set forth.

     NOW THEREFORE THIS AGREEMENT WITNESSETH that in consideration of the sum of
TWO DOLLARS ($2.00) now paid by each of the parties to the other (the receipt
and sufficiency of which are hereby acknowledged), and other mutual covenants
and agreements, the parties do hereby agree as follows:

1.  The parties hereby acknowledge, confirm and agree that the foregoing
recitals are true in substance and in fact.

2.  The Tenant desires to use certain basement level storage area in the
Building and in this respect the Lease is amended as of the 1st day of July,
1989 (the "Effective Date"), as follows:

     (a)  New Section 1.01A is added to the Lease in the following form:

          "SECTION 1.01A    STORAGE AREA

          The use and occupation by the Tenant of the Leased Premises includes
          the use of certain storage area (the "Storage Area") in the basement
          level of the Building in an area designated by the Landlord comprising
          approximately Three Hundred and
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                                      -2-

          Ninety-Three (393) square feet, for a period commencing on the 1st day
          of July, 1989, and expiring on the last day of the Term of this Lease
          including any renewals (the "Storage Term") in accordance with the
          provisions of Schedule "J" annexed to this lease and only for the
          purpose of storage of those items permitted under Schedule "J"."

     (b)  Schedule "J" attached to this Agreement is hereby attached to and
          forms part of the Lease as Schedule "J".

3.  It is understood and agreed that the Landlord's execution of this Agreement
is subject to the condition that any and all costs, including all legal and
administration costs, incurred by the Landlord with respect to this Agreement
shall be borne entirely by the Tenant and the Tenant hereby covenants to
promptly indemnify and save harmless the Landlord from and against any and all
costs so incurred.

4.  The parties confirm that in all other respects, the terms, covenants and
conditions of the Lease remain unchanged and in full force and effect, except as
modified by this Agreement. It is understood and agreed that all terms and
expressions when used in this Agreement, unless a contrary intention is
expressed herein, have the same meaning as they have in the Lease.

5.  This Agreement shall enure to the benefit of and be binding upon the Parties
hereto, the successors and assigns of the Landlord and the permitted successors
and permitted assigns of the Tenant.

     IN WITNESS WHEREOF the parties hereto have duly executed this Agreement as
of the day and year first above written, by affixing their respective corporate
seals under the hands of their proper signing officers duly authorized in that
behalf or by setting their respective hands and seals in their personal
capacity, as the case may be.

                               )   GUARSEL PARTNERSHIP
                               )                       (Landlord)
                               )
                               )   Per:          "GUARSEL PARTNERSHIP"
                               )       -----------------------------------------
                               )
                               )
                               )   Per:
                               )       -----------------------------------------
                               )
                               )
                               )
                               )   GEAC CANADA LIMITED
                               )                      (Tenant)
                               )
                               )   Per:            "LINDA LONG"
                               )       -----------------------------------------
                               )
                               )
                               )   Per:
                                       -----------------------------------------

<PAGE>

                                  SCHEDULE "J"

TENANT:        GEAC CANADA LIMITED

STORE NO:      SITE 220

DATE:          JULY 28, 1989

                                  STORAGE AREA

1.  The use and occupation by the Tenant of the Leased Premises includes (except
as qualified herein), a license to use certain storage area (the "Storage
Area"), for the period commencing on the lst day of July, 1989, and expiring on
the last day of the initial Term of this Lease including any renewals (the
"Storage Term"), containing approximately three hundred and ninety-three (393)
square feet in a location designated by the Landlord, solely for the purpose of
storage of those items permitted to be used in the Leased Premises pursuant to
this Lease. The Tenant covenants and agrees that the Storage Area is to be used
only for the purpose as aforesaid and in no event shall the Tenant suffer or
permit the storage of any perishable items or items that constitute a danger of
explosion, leakage or fire. The Landlord reserves the right to prohibit the
storage of any items at its sole discretion. It is understood and agreed that
the Storage Area does not form part of the Leased Premises, but the Storage Area
and the Tenant's use of the Storage Area are subject to such of the terms,
obligations and conditions contained in the Lease as the Landlord considers
applicable from time to time and without limitation, the provisions of the Lease
set out in Articles III, VI, VII, VIII, XI, XIII and XIV are applicable to the
Storage Area mutatis mutandis.

2.  Notwithstanding anything in Paragraph 1 hereof, the landlord has the right
on thirty (30) days' prior written notice to terminate the Tenant's right to the
use of the Storage Area if (i) the Lease is terminated, or (ii) the Tenant is in
default with respect to the provisions of this Schedule "J".

3.  The Tenant shall, throughout the Storage Term, pay to the Landlord from and
after July 1, 1989, at its head office or at such other place designated by the
Landlord, in Canadian funds, without demand and without deduction or set-off
whatsoever, for the use of the storage Area a fee of Two Thousand, Nine Hundred
and Forty-Seven Dollars and Fifty Cents ($2,947.50) per annum, payable in equal
consecutive monthly instalments of Two Hundred and Forty-Five Dollars and
Sixty-Two Cents ($245.62) each in advance on the first day of each calendar
month of each Rental Year, based upon an annual rate of Seven Dollars and Fifty
Cents ($7.50) per square foot, of the area of the Storage Area. The foregoing
fee will be prorated on a daily basis for any fractional month period at the
beginning or the end of the Storage Area Term.

4.  If the Landlord elects to have the area of the Storage Area measured or
calculated by the Architect, the Architect shall provide a certificate as to the
area of the Storage Area measured or calculated in accordance with Schedule "D"
of the Lease. Such certificate shall form part of the Lease and the area of the
Storage Area as so certified will pertain for all purposes instead of the area
indicated in Section 1.01A of the Lease and Paragraph 1 of this Schedule "J"
during and in respect of the period commencing on the first day of the month
following the date of the certificate and ending when the Tenant's right to use
the Storage Area terminates.<PAGE>

                                                                   EXHIBIT 10.9

                            LEASE AMENDING AGREEMENT

This agreement ("Agreement") dated as of and effective from November 1, 1990,

BETWEEN:

                  THE PRUDENTIAL ASSURANCE COMPANY LIMITED,

                  ("Landlord")

                                                                    FIRST PARTY,

                                     - and -

                  GEAC CANADA LIMITED,
                  a company incorporated under the laws of Canada,

                  ("Tenant")

                                                                   SECOND PARTY,

                                     - and -

                  GEAC COMPUTER CORPORATION LIMITED,
                  a company incorporated under the laws of Canada,

                  ("Indemnifier")

                                                                    THIRD PARTY.

RECITALS:

A.  By a lease dated February 28, 1989, the Landlord's predecessor-in-interest,
Guarsel Partnership, leased to the Tenant certain office premises (the "Leased
Premises") having a Rentable Area of 25,286 square feet and a Useable Area of
24,427 square feet (which Rentable Area and Useable Area have been certified by
the Architect in accordance with Schedule "D" of the lease, and which
Architect's Certificate is dated January 23, 1989, and is attached to the lease
as Appendix "B") as shown outlined in red in the approximate location on the
plan attached to the lease as Schedule "B", for and during a term (the "Term")
of ten (10) years, commencing on May I, 1989 (the "Commencement Date"), and
expiring on April 30, 1999, and which Leased Premises comprise the total third
floor of the building (the "Building") having the present municipal address of
11 Allstate Parkway, Markham, Ontario;

B.  By a lease amending agreement dated September 15, 1989, the Tenant was given
a licence to use certain storage area (the "Storage Area") in the basement level
of the Building in an area designated by the Landlord comprising approximately
393 square feet, for a period commencing July 1, 1989, and expiring on the last
day of the term of the lease, including any renewals, in accordance with the
provisions of Schedule "J" annexed to the lease amending agreement, solely for
the purpose of storage of those items permitted under Schedule "J";

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                                      -2-

C.  The lease and the lease amending agreement are, unless otherwise indicated
herein to the contrary, collectively referred to in this Agreement as the
"Lease"; and

D.  In connection with the use and occupation by the Tenant of the Leased
Premises, the Tenant has requested, and the Landlord has agreed to give the
Tenant, a licence to use certain additional basement storage area (the
"Additional Storage Area") containing an area of approximately Two Thousand Two
Hundred (2,200) square feet, in the approximate location shown crosshatched in
green on Schedule "Kl" attached to this Agreement, and the Parties have agreed
to amend the Term of the Lease.

NOW THEREFORE THIS AGREEMENT WITNESSES that in consideration of this Agreement,
the sum of One Dollar ($1.00), the receipt and sufficiency of which is hereby
acknowledged), and other good and valuable consideration, the Parties hereto do
hereby covenant and agree with each other as follows:

1.  The Parties hereby acknowledge, confirm and agree that the foregoing
recitals are true in substance and in fact, and form part of this Agreement.

2.  The Tenant desires to use certain additional basement level storage area in
the Building and in this respect the Lease is amended as of November 1, 1990, as
follows:

     (a) A new Section 1.01B is added to the Lease in the following form:

         "SECTION 1.01B            ADDITIONAL STORAGE AREA

         The use and occupation by the Tenant of the Leased Premises includes
         the use of certain additional storage area (the "Additional Storage
         Area") in the basement level of the Building, in the approximate
         location shown crosshatched in green on Schedule "K 1" attached
         hereto, comprising approximately Two Thousand Two Hundred (2,200)
         square feet, for a period commencing on November 1, 1990, and expiring
         on the last day of the Term of this Lease, including any renewals,
         (the "Additional Storage Area Term") in accordance with the provisions
         of Schedule "K" annexed to this Lease and only for the purpose of
         those items permitted under Schedule "K"."

     (b) Schedule "K" attached to this Agreement is hereby attached to and forms
         part of the Lease as Schedule "K".

3.  Retroactive to the Commencement Date, the word and figure "May 31" in lines
1 and 2 of Section 2.02(d) of the Lease are deleted and replaced with the word
and figure "April 30".

4.  The Parties confirm that in all other respects the terms, covenants and
conditions of the Lease remain unchanged and in full force and effect, except as
modified by this Agreement. It is understood and agreed that all terms and
expressions, when used in this Agreement, unless a contrary intention is
expressed herein, have the same meaning as they have in the Lease.

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                                      -3-

5.  This Agreement shall enure to the benefit of and be binding upon the Parties
hereto, the successors and assigns of the Landlord and the permitted successors
and permitted assigns of the Tenant.

6.  Continuing Indemnity - For greater certainty, and acknowledging the
consideration aforesaid, the Indemnifier agrees to the terms of this Agreement
and confirms its continuing agreement to indemnify the Landlord with respect to
all undertakings, terms, covenants, conditions and provisions to be observed by
the Tenant pursuant to the Lease and this Agreement.

IN WITNESS WHEREOF the Parties hereto have duly executed this Agreement as of
the day and year first above written, by affixing their respective corporate
seals under the hands of their proper signing officers duly authorized in that
behalf.

SIGNED, SEALED AND DELIVERED            THE PRUDENTIAL ASSURANCE COMPANY LIMITED
In the presence of                      COMPANY LIMITED               (Landlord)

                                        Per:  "Peter Andrews"
                                            ------------------------------------
                                            Authorized Signing Officer

                                        Per:  "Howard A. Lee"
                                            ------------------------------------
                                            Authorized Signing Officer

                                        GEAC CANADA LIMITED             (Tenant)

                                        Per:  "Shelley R. Isenberg"
                                            ------------------------------------
                                            Authorized Signing Officer

                                        Per:
                                            ------------------------------------
                                            Authorized Signing Officer

                                        GEAC COMPUTER CORPORATION  (Indemnifier)
                                        LIMITED

                                        Per:  "Shelley R. Isenberg"
                                            ------------------------------------
                                            Authorized Signing Officer

                                        Per:
                                            ------------------------------------
                                            Authorized Signing Officer

<PAGE>

                                      -4-

                                  SCHEDULE "K"

TENANT:     GEAC CANADA LIMITED

STORE NO.:  228

DATE:       AS OF AND EFFECTIVE FROM NOVEMBER 1, 1990

                             ADDITIONAL STORAGE AREA

1.  The use and occupation by the Tenant of the Leased Premises includes (except
as qualified herein), a licence to use certain additional storage area (the
"Additional Storage Area"), for the period commencing November 1, 1990, and
expiring on the last day of the initial Term of this Lease, including any
renewals (the `Additional Storage Area Term"), containing approximately Two
Thousand Two Hundred (2,200) square feet in the approximate location shown
crosshatched in green on Schedule "K1" attached hereto, solely for the purpose
of storage of those items permitted to be used in the Leased Premises pursuant
to this Lease. The Tenant covenants and agrees that the Additional Storage Area
is to be used only for the purpose as aforesaid and in no event shall the Tenant
suffer or permit in the Additional Storage Area the storage of any perishable
items or items that constitute a danger of explosion, leakage or fire. The
Landlord reserves the right to prohibit the storage of any items at its sole
discretion. It is understood and agreed that the Additional Storage Area does
not form part of the Leased Premises, but the Additional Storage Area and the
Tenant's use of the Additional Storage Area are subject to such of the terms,
obligations and conditions contained in this Lease as the Landlord considers
applicable from time to time, and without limitation, the provisions of this
Lease set out in Articles III, VI, VII, VIII, XI, XIII and XIV are applicable to
the Additional Storage Area mutatis mutandis.

2.  Notwithstanding anything in Paragraph 1 hereof, the Landlord has the right
on thirty (30) days' prior written notice to terminate the Tenant's right to the
use of the Additional Storage Area if (i) this Lease is terminated, or (ii) the
Tenant is in default with respect to the provisions of this Schedule "K".

3.  The Tenant shall, throughout the Additional Storage Area Term, pay to the
Landlord from and after November 1, 1990, at its head office or at such other
place designated by the Landlord, in Canadian funds, without demand and without
deduction or set-off whatsoever, for the use of the Additional Storage Area a
fee of Sixteen Thousand Five Hundred Dollars ($16,500.00) per annum, payable in
equal consecutive monthly instalments of One Thousand Three Hundred and
Seventy-Five Dollars ($1,375.00) each in advance on the first day of each
calendar month of each Rental Year, based upon an annual rate of Seven Dollars
and Fifty Cents ($7.50) per square foot, of the area of the Additional Storage
Area. The foregoing fee will be prorated on a daily basis for any fractional
month period at the beginning or the end of the Additional Storage Area Term.

<PAGE>

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