EXHIBIT 99.1
                                                                    ------------




[LOGO] Mercator. news release


              For Immediate Distribution
                 MERCATOR NARROWS FIRST QUARTER NET LOSS BY 30%


          RECENTLY TERMINATED PROXY BATTLE, WAR AND WEAK ECONOMY CAUSE
                     CUSTOMERS TO DEFER PURCHASING DECISIONS



                            WILTON, Conn.--April 29, 2002--Mercator Software,
                            Inc. (Nasdaq: MCTR), today reported results for the
CORPORATE HEADQUARTERS      first quarter ended March 31, 2003. The Company
Mercator Software, Inc.     stated that total revenues for the period were $23.0
45 Danbury Road             million, compared to $27.4 million in the first
Wilton, CT 06897-0840       quarter a year ago, including license revenue of
Voice: 203.761.8600         $7.0 million, which is down 27% compared to license
Fax: 203.762.9677           revenue of $9.5 million in the first quarter of
                            2002. The Company also noted that maintenance
www.mercator.com            revenue of $10.4 million in the first quarter was up
                            5%, compared to $9.9 million in the first
                            quarter of 2002.

                            First quarter 2003 total operating expenses and cost
                            of revenues were reduced by 17% to $27.5 million
                            compared to $33.1 million a year ago. This
                            represents the Company's lowest total expense in the
                            last 16 quarters.

                            The Company's first quarter net loss, calculated in
                            accordance with U.S. generally accepted accounting
                            principles (GAAP), was ($4.3) million, or ($0.12)
                            per share for the first quarter of 2003, and
                            narrowed by 30% from a net loss of ($6.1) million,
                            or ($0.18) per share a year ago. The net loss
                            included a $0.3 million charge relating to the
                            previously announced restructuring efforts
                            undertaken by the Company in the fourth quarter of
                            2002.

                            The Company stated that the recently terminated
                            Strategic Software Holdings (SSH) proxy contest and
                            unsolicited proposal to acquire the Company caused a
                            number of customers to defer their purchasing
                            decisions at the end of the first quarter. On March
                            14, SSH announced an alternate slate of directors
                            for Mercator's board. On March 31, SSH made an
                            unsolicited proposal to purchase Mercator's
                            outstanding shares. On April 21, Mercator and SSH
                            jointly announced a settlement whereby the proxy
                            contest was terminated and the proposal withdrawn.

                            The Company said it incurred $150,000 of expenses in
                            the first quarter in connection with the proxy
                            contest with SSH, and expects to record a charge of
                            approximately $550,000 in the second quarter, which
                            includes $300,000 paid to SSH in connection with the
                            previously announced settlement.

                            "Combined with a weak economy and the war in Iraq,
                            the proxy matter played a significant role in a
                            number of customers' decisions to defer their
                            purchases,"

                                                                [LOGO] Mercator.


                            said Roy C. King, Mercator Chairman and CEO. "Now
                            that the proxy matter is behind us, we are focused
                            exclusively on serving our customers and partners,
                            and executing our strategy to deliver value to all
                            Mercator stakeholders."

                            Total cash and cash equivalents declined by $4.5
                            million in the first quarter to $25.4 million at
                            March 31, 2003. This compares to total cash and cash
                            equivalents of $29.9 million at December 31, 2002,
                            and $28.1 million at March 31, 2002. Total cash used
                            for operating activities was $3.4 million in the
                            quarter.

                            "We continued to reduce total expenses while keeping
                            DSO's low, generating healthy maintenance revenue
                            from existing customers, and maintaining a large
                            deferred revenue balance," said Kenneth J. Hall,
                            Mercator's Executive Vice President, Chief Financial
                            Officer and Treasurer. "Although license sales
                            suffered from the distraction of the proxy contest,
                            as well as from the global economy, we remain
                            focused on our strategy for long-term growth by
                            combining our core technology and vertical solutions
                            with the offerings of systems integrator and
                            technology partners."

                            The Company said that Days Sales Outstanding (DSO)
                            were 63 days, up by 1 day compared to the fourth
                            quarter of 2002. Total deferred revenue was $24.2
                            million compared to $24.5 million in the fourth
                            quarter of 2002.

                            The Company reported that it expects to record a
                            charge in the second quarter of 2003 of
                            approximately $4.0 million relating to excess office
                            space in our international operations in connection
                            with previously announced restructurings.

                            BUSINESS HIGHLIGHTS

                            Notable Mercator customers in the quarter included
                            State of Arizona Healthcare; Bayer; Citistreet;
                            Credit du Nord; Daimler Chrysler; General Motors;
                            Hawaii Medical Services Association; Lilly Pulitzer;
                            M & G; Mitsui; Organon; Panasonic; Personix; and
                            World Insurance Corporation.

                            Among other highlights of the quarter, Mercator
                            announced the successful testing of its connectivity
                            solution for Omgeo Central Trade Manager, a virtual
                            transaction-matching utility that facilitates
                            straight through processing for financial services
                            customers. Mercator released several new products
                            and enhancements in the first quarter including
                            MERCATOR InsideHIPAA(TM) 3.0; MERCATOR InsideHL7(TM)
                            3.0; and MERCATOR InsideNCPDP(TM) 3.0; as well as
                            extensions to MERCATOR Inside Integrator(TM),
                            including MERCATOR Commerce Management 7.0 for
                            enhanced levels of B2B and EDI-based integration
                            support; and MERCATOR Business Process Management
                            2.0, offering state-of-the-art business process
                            modeling, automation, monitoring, management and Web
                            Services.

                            Additionally, Mercator announced a new partnership
                            agreement with Sweden-based SYNC, who specializes in
                            supply chain integration, to deliver MERCATOR
                            InsideGlobalOrderManagement(TM), an integration
                            solution for manufacturing, retail and distribution
                            customers, and a new partnership with IVANS, Inc., a

                                                                [LOGO] Mercator.


                            Connecticut-based provider of insurance industry
                            e-commerce solutions, to deliver an automated
                            property and casualty insurance solution for the
                            property and casualty industry.

                                      * * *

                            A conference call to discuss the first quarter
                            results will be hosted by Mercator Chairman and CEO
                            Roy C. King at 5:00 PM ET today. The domestic phone
                            number for the conference call is (888) 455-8716;
                            the international number is (712) 257-3674. The pass
                            code for the call is "Q1 Results." The
                            teleconference will be webcast simultaneously and
                            can be accessed by using the link on our Web site
                            www.mercator.com. An audio replay of the call will
                            be available after the call. The toll free domestic
                            phone number for the audio replay is (800) 925-1214;
                            the international number is (402) 530-8059. A replay
                            of the webcast will be accessible via
                            http://ir.mercator.com/. ABOUT MERCATOR SOFTWARE,
                            INC. Mercator delivers its customers and partners
                            The Advantage Inside Integration(TM), providiNG
                            Industry-Ready Integration Solutions(TM) that solve
                            critical business problems in real-time, while
                            leveraging current technology investments and
                            maximizing ROI. Mercator's core integration
                            technology, MERCATOR Inside Integrator(TM) 6.7,
                            features a Solutions-Oriented Architecture(TM),
                            which easily and seamlessly automates high-volume,
                            complex transactions. Over 1,100 enterprise
                            customers leverage the power, speed and flexibility
                            of Mercator's proven integration technology and
                            industry expertise to build better business value
                            and faster ROI. To hear why our customers and
                            partners believe Mercator is the advantage inside
                            integration, visit our Web site at WWW.MERCATOR.COM.

                            (C) 2003 MERCATOR SOFTWARE, INC. ALL RIGHTS
                            RESERVED. MERCATOR AND THE MERCATOR LOGO ARE
                            REGISTERED TRADEMARKS OF MERCATOR SOFTWARE, INC. ALL
                            OTHER MARKS APPEARING WITH A "TM" THEREAFTER ARE
                            INTELLECTUAL PROPERTY OF MERCATOR SOFTWARE, INC. ANY
                            OTHER PRODUCT OR COMPANY NAMES MENTIONED ARE USED
                            FOR IDENTIFICATION PURPOSES ONLY, AND MAY BE
                            TRADEMARKS OR SERVICE MARKS OF THEIR RESPECTIVE
                            OWNERS.

                            LEGAL NOTICE REGARDING FORWARD-LOOKING STATEMENTS
                            Statements in this press release that are not purely
                            historical are forward-looking statements, including
                            statements regarding Mercator's beliefs,
                            expectations, hopes or intentions regarding the
                            future. Forward-looking statements in this release
                            include, but are not limited to, statements
                            regarding the growth of the enterprise application
                            market; the demand for the Company's application
                            integration solutions; and the speed of deployment
                            of new products, including the Mercator Inside
                            Integrator suite of products and Industry-Ready
                            Integration Solutions; and sometimes contain words
                            such as "believe," "expect, " "intend, "
                            "anticipate," "plan," and "estimate" or similar
                            expressions. It is important to note that actual
                            outcomes and the Company's actual results could
                            differ materially from forward-looking statements.
                            Factors that could cause actual results to differ
                            materially include risks and uncertainties such as
                            changes in demand for application integration or
                            e-business integration software and, in particular,
                            the Company's Mercator Inside Integrator suite of
                            products and Industry-Ready Integration Solutions;
                            the ability of the Company to manage its global
                            operations; the ability of the Company to develop
                            and introduce new or enhanced products; the ability
                            of the Company to continue to add resellers and
                            other distribution channels; the success of third
                            parties in utilizing and marketing the Company's
                            products; the success of the vertical industries and
                            platforms we target; the Company's access to and
                            success of third party products in which we embed
                            our products or in which our products are embedded;
                            the Company's ability to raise financing; and
                            seasonality in operating results. Readers should
                            also refer to the risk disclosures outlined in the
                            Company's reports filed

                                                                [LOGO] Mercator.


                            with the Securities and Exchange Commission. All
                            forward-looking statements and reasons why results
                            might differ included in this release are made as of
                            the date hereof based on information available to
                            the Company as of the date hereof. The Company
                            assumes no obligation to update any such
                            forward-looking statement or reasons why results
                            might differ.

                            Contact:    Jonathan Cohen
                                        203-563-1214
                                        jcohen@mercator.com


                                                                [LOGO] Mercator.




                                                     MERCATOR SOFTWARE, INC.
                                              CONSOLIDATED CONDENSED BALANCE SHEETS
                                                         (IN THOUSANDS)

                                                                                   MARCH 31,         DECEMBER 31,        MARCH 31,
                                                                                     2003               2002               2002 *
                                                                                     ----               -----              ------
                                                                                  (UNAUDITED)                           (UNAUDITED)
                                 ASSETS
                                                                                                                 
Current assets:
    Cash and cash equivalents                                                       $25,376            $29,920            $28,120
    Accounts receivable, net                                                         16,125             22,223             19,268
    Prepaid expenses and other current assets                                         3,697              3,775              3,822
      Total current assets                                                           45,198             55,918             51,210

Furniture, fixtures and equipment, net                                                8,804              9,165              8,561
Goodwill, net                                                                        43,960             43,960             43,960
Intangible assets, net                                                                4,260              5,421              8,907
Restricted collateral deposits and other assets                                       1,392              1,265              3,395
      Total assets                                                                 $103,614           $115,729           $116,033


                  LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
    Accounts payable                                                                 $6,446             $5,783             $6,532
    Accrued expenses and other current liabilities                                   15,487             22,197             18,163
    Current portion of long-term debt                                                 2,867              3,268                429
    Current portion of deferred revenue                                              23,858             24,049             20,795
      Total current liabilities                                                      48,658             55,297             45,919

Deferred revenue, less current portion                                                  351                465                784
Deferred tax liability                                                                  945              1,233              2,083
Long-term debt, less current portion                                                  7,217              7,928                489
Other long-term liabilites                                                            8,202              8,805              3,490
      Total liabilities                                                              65,373             73,728             52,765

Stockholders' equity:
Convertible preferred stock                                                               -                  -                  -
Common stock                                                                            352                346                338
Additional paid-in capital                                                          250,982            250,300            249,580
Accumulated deficit                                                                (211,925)          (207,628)          (184,333)
Accumulated other comprehensive loss                                                 (1,168)            (1,017)            (2,317)
      Total stockholders' equity                                                     38,241             42,001             63,268

      Total liabilities and stockholders' equity                                   $103,614           $115,729           $116,033


*Certain reclassifications have been made to conform to the 2003 presentation.





                                          MERCATOR SOFTWARE, INC.
                              CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
                                   (IN THOUSANDS, EXCEPT PER SHARE DATA)
                                                (UNAUDITED)

                                                                        THREE MONTHS ENDED
                                                          MARCH 31,         DECEMBER 31,         MARCH 31,
                                                            2003               2002               2002 *
                                                                                          
Revenues:
    Software licensing                                      $6,972             $16,389             $9,549
    Services                                                 5,606               5,912              7,964
    Maintenance                                             10,431               9,981              9,899
        Total revenues                                      23,009              32,282             27,412

Cost of revenues:
    Software licensing                                          91                  97                124
    Services                                                 5,296               5,063              7,655
    Maintenance                                              1,659               1,647              2,016
    Stock option re-pricing benefit                              -                   -               (272)
    Amortization of intangibles                                961                 960                961
        Total cost of revenues                               8,007               7,767             10,484
        Gross profit                                        15,002              24,515             16,928

Operating expenses:
    Product development                                      5,034               5,536              4,509
    Selling and marketing                                    8,312              12,173             11,951
    General and administrative                               5,650               4,742              6,763
    Stock option re-pricing benefit                              -                   -               (639)
    Amortization of intangibles                                200                 201                305
    Restructuring charge/(benefit)                             267               7,875               (245)
        Total operating expenses                            19,463              30,527             22,644

        Operating loss                                      (4,461)             (6,012)            (5,716)
Foreign currency exchange gain/(loss), net                     101                (582)               (60)
Other expense, net                                            (221)                (65)               (67)
Loss before income taxes                                    (4,581)             (6,659)            (5,843)

(Benefit from)/provision for income taxes                     (284)                207                270
Net loss                                                   ($4,297)            ($6,866)           ($6,113)

Net loss per share
  Basic and fully diluted                                   ($0.12)             ($0.20)            ($0.18)

Weighted average shares outstanding
  Basic and fully diluted                                   34,935              34,529             33,575



* Certain reclassifications have been made to conform to the 2003 presentation.