CE SOFTWARE HOLDINGS INC
PRE 14A, 2000-03-01
PREPACKAGED SOFTWARE
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<PAGE>

                                 SCHEDULE 14A

                                (Rule 14A-101)

                    INFORMATION REQUIRED IN PROXY STATEMENT
                           SCHEDULE 14A INFORMATION

          Proxy Statement Pursuant to Section 14(a) of the Securities
                             Exchange Act of 1934
                           (Amendment No.          )

Filed by the Registrant[X]

Filed by a Party other than the Registrant[_]

Check the appropriate box:

[X]Preliminary Proxy Statement[X]Confidential, for use of the Commission only
                                 (as permitted by Rule 14a-6(e)(2)).

[_]Definitive Proxy Statement

[_]Definitive Additional Materials

[_]Soliciting Material under Rule 14a-12.

                          CE Software Holdings, Inc.
               (Name of Registrant as Specified in its Charter)


   (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check appropriate box):

[_]No fee required.

[X]Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

  (1) Title of each class of securities to which transaction applies: common

  (2) Aggregate number of securities to which transaction applies: 1,044,429

  (3) Per unit price or other underlying value of transaction computed
      pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
      filing fee is calculated and state how it was determined): The average
      of the high and low prices reported on the Nasdaq SmCap market on
      February 15, 2000 was $9.00.

  (4) Proposed maximum aggregate value of transaction: $9,399,861 (1,044,429
      X $9.00)

  (5) Total fee paid: $1,880 (one fiftieth of one percent)

[_]Fee paid previously with preliminary materials.

[_]Check box if any part of the fee is offset as provided by Exchange Act Rule
   0-11(a)(2) and identify the filing for which the offsetting fee was paid
   previously. Identify the previous filing by registration statement number,
   or the Form or Schedule and the date of its filing.

  (1) Amount Previously Paid:

  (2) Form, Schedule or Registration Statement No.:

  (3) Filing Party:

  (4) Date Filed:
<PAGE>

                           CE SOFTWARE HOLDINGS, INC.

                          WEST DES MOINES, IOWA 50265

   You are cordially invited to attend the annual meeting of the stockholders
of CE Software Holdings, Inc. (CESH). CESH will hold the meeting
on             , 2000, at 1:30 p.m., local time, at the
                           ,               , Minnesota. The purpose of the
annual meeting is for you to consider and act upon the following: (1) to elect
five directors to hold office for the ensuing year or until their successors
are elected and qualified; (2) to approve the Amended and Restated Agreement
and Plan of Merger; (3) to approve the issuance of a maximum of 715,000 shares
of common stock in a private placement, at a per share price of not less than
$7.00, plus warrants to purchase an equal number of additional shares of common
stock at an exercise price not less than $9.00; (4) to amend certain existing
stock option plans; (5) to adopt the 2000 Stock Option Plan; and (6) to
transact such other business as may properly come before the meeting or any
adjournment.

   Completion of the merger is subject to a number of conditions, including
obtaining financing through the aforementioned private placement. Therefore,
even if you approve the merger, we cannot assure you that the merger will be
completed.

   The proposed merger is the result of extensive consideration of alternatives
to maximize stockholder value that began last June. In the course of your
board's consideration of alternatives, CESH's management contacted numerous
parties concerning the possibility of the sale or liquidation of the company or
its assets or the merger of the company.

   Following extensive consideration of potential alternatives, the directors
concluded that the merger with Atio Corporation USA, Inc. is in the best
interests of CESH and its stockholders. Holders of 35.8% of CESH's stock have
agreed to vote in favor of the merger.

   CESH's board of directors believe that the terms of the merger are fair to,
and in the best interest of, CESH and its stockholders. They unanimously
recommend that you approve the merger.

   Approval of the merger requires the affirmative vote of holders of a
majority of the outstanding shares of common stock.

   The enclosed proxy statement provides you with a summary of the proposed
merger and additional information. Please give this information your careful
attention.

   Your vote is very important. Whether or not you plan to attend the annual
meeting, please take the time to vote by completing, signing, dating and
mailing the enclosed proxy card.

   We look forward to having you join us at the meeting.

                                          Very truly yours,
                                          /s/
                                          Christian F. Gurney
                                          President
<PAGE>

                           CE SOFTWARE HOLDINGS, INC.
                             1801 Industrial Circle
                          West Des Moines, Iowa 50265

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                    TO BE HELD                       , 2000

   The annual meeting of the stockholders of CE Software Holdings, Inc. (the
"Company") will be held at                        on                       ,
2000 at 1:30 p.m. (Central Time) for the purpose of considering and acting upon
the following:

     1. To elect five directors to hold office for the ensuing year or until
  their successors are elected and qualified;

     2. To approve the Agreement and Plan of Merger, as amended and restated
  (the "Agreement and Plan of Merger," a copy of which is attached as
  Appendix A to the proxy statement), dated as of December 28, 1999 by which:

       (a) Atio Corporation USA, Inc. will merge with and into the Company;

       (b) The stock of the Company's subsidiary CE Software, Inc. will be
    distributed to the Company's stockholders;

       (c) Willem Ellis, Thomas Patin,        ,         and         will be
    designated as directors of the Company to replace and become successors
    to those persons serving as directors of the Company immediately prior
    to the effective time of the merger;

       (d) The Company's Certificate of Incorporation will be amended as
    described in Exhibit 1.1.4 to the Agreement and Plan of Merger;

     3. To authorize the issuance of a maximum of 715,000 shares of common
  stock in a private offering, at a per share price not less than $7.00, plus
  warrants to purchase an equal number of additional shares of common stock
  at an exercise price not less than $9.00;

     4. To amend the 1990 Stock Option Plan, 1992 Stock Option Plan, and
  Nonemployee Directors Stock Option Plan by:

       (a) increasing the number of shares reserved to be issued upon
    exercise of options granted under the 1990 Stock Option Plan to
    130,000;

       (b) prohibiting the granting of any further options under any of
    these plans; and

       (c) providing that all options granted under any of these plans to
    persons who were directors or employees of either CESH or CE Software
    immediately prior to the effective time of the merger, other than
    persons who will continue as employees of CESH, will be exercisable as
    of the effective time of the merger and for a period of three months
    thereafter;

     5. To adopt the 2000 Stock Option Plan; and

     6. To transact such other business as may properly come before the
  meeting or any adjournment.

   The Company's Annual Report to Stockholders on Form 10-KSB for the fiscal
year ending September 30, 1999, the proxy statement, and the proxy card are all
included with this notice. The stock transfer books of the Company will not be
closed, but only stockholders of record at the close of business on March 10,
2000 will be entitled to notice of and to vote at the meeting. A list of
stockholders entitled to vote at the annual meeting will be available for
examination at the Company's principal offices at 1801 Industrial Circle, West
Des Moines, Iowa 50265 during ordinary business hours for two weeks prior to
the meeting and at One Corporate Center, 7301 Ohms Lane, Suite 600, Edina,
Minnesota 55439, at lease one hour before and during the meeting. You have the
right to dissent from the proposed merger, and upon compliance with the
procedural requirements of Delaware law, to receive the "fair value" of your
shares if the merger is completed.
<PAGE>

   You are cordially invited to come early so that you may meet informally with
management and the board of director nominees. Please contact Mary McDonnell of
CE Software Holdings, Inc. at (515) 221-1801 for directions and a map. The
meeting area will be open from 1:00 p.m. until the meeting time of 1:30 p.m.
Refreshments will be served before the meeting.

   Whether or not you expect to attend the meeting, please sign, date and mail
the enclosed proxy in the envelope provided, which requires no postage if
mailed in the United States. It is important the proxy be returned regardless
of the number of shares owned.

   By order of the Board of Directors.

John S. Kirk, Secretary
West Des Moines, Iowa
          , 2000

   THE SECURITIES AND EXCHANGE COMMISSION HAS NEITHER APPROVED OR DISAPPROVED
OF THIS TRANSACTION NOR PASSED UPON THE FAIRNESS OR MERITS OF THE PROPOSED
TRANSACTIONS OR UPON THE ACCURACY OR ADEQUACY OF THE INFORMATION CONTAINED IN
THIS DOCUMENT. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
<PAGE>

                      TABLE OF CONTENTS TO PROXY STATEMENT

<TABLE>
<S>                                                                         <C>
FORWARD-LOOKING STATEMENTS.................................................   2

WHERE YOU CAN FIND MORE INFORMATION........................................   2

QUESTIONS AND ANSWERS ABOUT THE MERGER AND DISTRIBUTION OF CE SOFTWARE
 STOCK.....................................................................   3

SUMMARY....................................................................   5
  SUMMARY SELECTED HISTORICAL FINANCIAL INFORMATION FOR CESH...............  11
  SUMMARY SELECTED HISTORICAL FINANCIAL INFORMATION FOR ATIO...............  11

PRO FORMA FINANCIAL INFORMATION............................................  12

PROPOSAL #1................................................................  15

TO ELECT FIVE DIRECTORS TO HOLD OFFICE FOR THE ENSUING YEAR OR UNTIL THEIR
 SUCCESSORS ARE ELECTED AND QUALIFIED......................................  15
  NOMINEES FOR ELECTION AS DIRECTORS UNTIL THE MERGER IS EFFECTIVE.........  15
  ATTENDANCE AT BOARD AND COMMITTEE MEETINGS...............................  16
  DIRECTORS' FEES..........................................................  16

PROPOSAL #2................................................................  17

TO APPROVE THE AGREEMENT AND PLAN OF MERGER DATED AS OF DECEMBER 28, 1999
 BY WHICH..................................................................  17
  PARTIES TO THE AGREEMENT AND PLAN OF MERGER..............................  17
    CESH...................................................................  18
    ATIO...................................................................  18
      Business of ATIO.....................................................  18
      Products.............................................................  18
      Intellectual Property................................................  19
      Target Market........................................................  20
      Market Opportunity...................................................  20
      Reseller Partners....................................................  22
      Professional Services................................................  22
      Research And Development.............................................  23
      History..............................................................  23
      Employees............................................................  23
      Property.............................................................  23
      Management's Discussion and Analysis of Financial Condition and
       Results of Operations for ATIO......................................  23
    Other Parties to the Agreement and Plan of Merger......................  25
  BACKGROUND OF THE MERGER TRANSACTIONS....................................  27
  INTERESTS OF DIRECTORS AND OFFICERS IN THE MERGER AND DISTRIBUTION OF CE
   SOFTWARE STOCK THAT ARE DIFFERENT FROM YOUR INTERESTS OR WHICH MAY
   PRESENT CONFLICTS OF INTEREST...........................................  29
  RISK FACTORS RELATED TO THE MERGER.......................................  30
  CE SOFTWARE AFTER THE SPIN-OFF...........................................  35
  DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS, AND CONTROL PERSONS............  36
</TABLE>
<PAGE>

<TABLE>
<S>                                                                          <C>
  MARKET PRICE AND DIVIDENDS ON CE SOFTWARE COMMON STOCK...................   36
  LEGAL PROCEEDINGS........................................................   37
  INDEMNIFICATION OF DIRECTORS AND OFFICERS OF CE SOFTWARE UNDER IOWA LAW..   37
  RISK FACTORS RELATED TO THE DISTRIBUTION OF CE SOFTWARE STOCK............   37
  DESCRIPTION OF CE SOFTWARE SECURITIES....................................   40
  TERMS OF THE AGREEMENT AND PLAN OF MERGER................................   40
  ACCOUNTING TREATMENT.....................................................   49
  CERTAIN MATERIAL FEDERAL INCOME TAX MATTERS..............................   49
  AMENDMENT TO CERTIFICATE OF INCORPORATION................................   51

PROPOSAL #3................................................................   52

TO AUTHORIZE THE ISSUANCE OF A MAXIMUM OF 715,000 SHARES OF COMMON STOCK IN
 A PRIVATE OFFERING, AT A PER SHARE PRICE NOT LESS THAN $7.00, PLUS
 WARRANTS TO PURCHASE AN EQUAL NUMBER OF ADDITIONAL SHARES OF COMMON STOCK
 AT AN EXERCISE PRICE NOT LESS THAN $9.00..................................   52

PROPOSAL #4................................................................   53

TO AMEND THE 1990 STOCK OPTION PLAN, 1992 STOCK OPTION PLAN, AND
 NONEMPLOYEE DIRECTORS STOCK OPTION PLAN BY................................   53

PROPOSAL #5................................................................   54

TO ADOPT THE 2000 STOCK OPTION PLAN........................................   54

VOTE REQUIRED; RECORD DATE.................................................   55

DISSENTERS' RIGHTS TO APPRAISAL............................................   56

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.............   58

EXECUTIVE COMPENSATION.....................................................   60

PRICE RANGE OF COMMON STOCK AND DIVIDENDS..................................   61

MANNER IN WHICH PROXIES WILL BE VOTED......................................   61

INDEPENDENT PUBLIC ACCOUNTANTS.............................................   61

OTHER MATTERS..............................................................   62

PROPOSALS OF STOCKHOLDERS..................................................   62

AVAILABLE INFORMATION......................................................   62

INCORPORATION BY REFERENCE.................................................   62

INDEX TO FINANCIAL STATEMENTS..............................................   64
</TABLE>

APPENDIX AAgreement and Plan of Merger
APPENDIX BDelaware Law Regarding Appraisal Rights
APPENDIX C2000 Stock Option Plan
APPENDIX D Financial Statements
<PAGE>

                           JOINT DISCLOSURE STATEMENT

                               CE SOFTWARE, INC.
                             1801 Industrial Circle
                          West Des Moines, Iowa 50265
                                   FORM 10SB

                           CE SOFTWARE HOLDINGS, INC.
                             1801 Industrial Circle
                          West Des Moines, Iowa 50265
                              PROXY STATEMENT FOR
                         ANNUAL MEETING OF STOCKHOLDERS

                                        , 2000
                             1:30 p.m. (local time)
                          Minneapolis, Minnesota

            The approximate mailing date of this Proxy Statement is
                                 March 17, 2000

               The Record Date for the Meeting is March 10, 2000

   The accompanying proxy is furnished by CE Software Holdings, Inc. (the
"Company" or "CESH") in connection with the solicitation by the Board of
Directors. You may revoke your proxy, after it has been given, at any time
before it is voted by giving written notice to the secretary of the Company or
by executing and delivering a proxy with a later date. The board will use the
proxies at the annual meeting of stockholders to be held on
                      , 2000 and at any adjournment of that meeting.

   At the meeting we will ask stockholders to consider and vote on the
following proposals:

     1. To elect five directors to hold office for the ensuing year or until
  their successors are elected and qualified;

     2. To approve the Agreement and Plan of Merger, as amended and restated
  (the "Agreement and Plan of Merger," a copy of which is attached as
  Appendix A to this disclosure statement), dated as of December 28, 1999 by
  which:

        (a) Atio Corporation USA, Inc. ("ATIO") will merge with and into
    the Company;

       (b) The stock of the Company's subsidiary, CE Software, Inc., ("CE
    Software") will be distributed to the Company's stockholders (sometimes
    referred to as the "spin-off");

       (c) Willem Ellis, Thomas Patin,        ,         and         will be
    designated as directors of the Company to replace and become successors
    to those persons serving as directors of the Company immediately prior
    to the effective time of the merger; and

       (d) The Company's Certificate of Incorporation will be amended as
    described in Exhibit 1.1.4 to the Agreement and Plan of Merger;

     3. To authorize the issuance of a maximum of 715,000 shares of common
  stock in a private offering, at a per share price not less than $7.00, plus
  warrants to purchase an equal number of additional shares of common stock
  at an exercise price not less than $9.00;

     4. To amend the 1990 Stock Option Plan, 1992 Stock Option Plan, and
  Nonemployee Directors Stock Option Plan by:

        (a) increasing the number of shares reserved to be issued upon
    exercise of options granted under the 1990 Stock Option Plan to
    130,000;

        (b) prohibiting the granting of any further options under any of
    these plans; and

                                       1
<PAGE>

        (c) providing that all options granted under any of these plans to
    persons who were directors or employees of either CESH or CE Software
    immediately prior to the effective time of the merger, other than
    persons who will continue as employees of CESH, will be exercisable as
    of the effective time of the merger and for a period of three months
    thereafter;

     5. To adopt the 2000 Stock Option Plan; and

     6. To transact such other business as may properly come before the
  meeting or any adjournment.

                          FORWARD-LOOKING STATEMENTS

   Certain statements in this disclosure statement constitute "forward-looking
statements" within the meaning of Section 27A of the Securities Act of 1933,
as amended, and Section 21E of the Securities Exchange Act of 1934, as
amended. The reasons for the merger discussed under the caption "Proposal #2,"
statements about the expected impact of the merger on the Company's business,
financial performance and condition, and statements about the accounting and
tax treatment of the Company related to the merger are forward-looking
statements. All statements that address expectations or projections about the
future, including statements about product development, market position,
expected expenditures and financial results, are forward-looking statements.

   Some of the forward-looking statements may be identified by words like
"expects," "anticipates," "plans," "intends," "projects," "indicates," and
similar expressions. Any statements contained herein that are not statements
of historical fact may be deemed to be forward-looking statements. These
statements are not guarantees of future performance and involve a number of
risks, uncertainties and assumptions. Many factors, including those discussed
more fully elsewhere in this disclosure statement and in the Company's filings
with the Securities and Exchange Commission ("SEC"), could cause results to
differ materially from those stated. These factors include, but are not
limited to, risks that the Agreement and Plan of Merger may not be approved by
shareholders or for other reasons may not close as planned; ATIO's products
may not receive the level of market acceptance anticipated; the anticipated
funding may prove to be unavailable; and general economic conditions, such as
the rate of employment, inflation, interest rates, and the condition of the
capital markets may change in a way that is not favorable to the Company. This
list of factors is not exclusive. The Company undertakes no obligation to
update any forward-looking statements. See also "Risk Factors Related to the
Merger," "Risk Factors Related to the Distribution of CE Software Stock" and
"Certan Material Federal Income Tax Matters."

                      WHERE YOU CAN FIND MORE INFORMATION

   The Company is subject to the informational requirements of the Securities
Exchange Act of 1934 and files annual, quarterly and special reports, proxy
statements and other information with the SEC. These reports and information
may be read and copied at the following SEC locations:

    Public Reference Room   New York Regional Office  Chicago Regional Office
    450 Fifth Street, N.W.  7 World Trade Center      Citicorp Center
    Room 1024               Suite 1300                Suite 1400
    Washington, D.C. 20549  New York, NY 10048        Chicago, IL 60661-2511

   Copies of the reports and information filed by the Company may also be
obtained by mail from the Public Reference Section of the SEC, 450 Fifth
Street, Room 1024, Washington, D.C. 20549, at prescribed rates. Further
information on the operation of the SEC's Public Reference Room may be
obtained by calling the SEC at 1-800-SEC-0330.

   The SEC also maintains a Web site that contains reports, proxy statements,
and other information about registrants, such as the Company, that file
electronically with the SEC. The address of that Web site is
http://www.sec.gov.

                                       2
<PAGE>

  QUESTIONS AND ANSWERS ABOUT THE MERGER AND DISTRIBUTION OF CE SOFTWARE STOCK

   The following questions and answers are for your convenience only, and
briefly address some commonly asked questions about the merger and the
distribution of CE Software stock. You should carefully read this disclosure
statement in its entirety, including the attached appendices.

Q. WHAT AM I BEING ASKED TO VOTE UPON?

A. You are being asked to elect directors for the Company who will serve only
until the effective time of the merger. You are being asked to approve an
Agreement and Plan of Merger which provides that ATIO will merge with and into
CESH. As part of that transaction, shares of the Company's operating company,
CE Software, will be distributed to shareholders. CESH will remain a public
company. Its shares of common stock will initially be traded on the Nasdaq
SmallCap Market under the symbol "CESH." We anticipate that the Company name
and trading symbol will be changed at some time after the merger has been
completed. The shares of CE Software will be registered under the Securities
Exchange Act of 1934 and traded on the OTC Bulletin Board. The shares will not
be listed on any exchange or traded under either the Nasdaq National Market or
the Nasdaq SmallCap Market.

   You are also being asked to authorize issuance of shares in a private
offering, to amend the Company's stock option plans, and to adopt a new stock
option plan.

Q. WHAT WILL I RECEIVE IF THE AGREEMENT AND PLAN OF MERGER IS APPROVED?

A. For each share of CESH you hold, you will receive one share of CE Software,
the value of which will be the fair market value at the time of the spin-off.
This will be a taxable event for you.

You will retain ownership of your CESH shares but your percentage of interest
in CESH will be decreased when shares are issued in the merger to holders of
ATIO shares.

Q. WHAT WILL HAPPEN TO PRESENT MEMBERS OF CESH'S MANAGEMENT?

A. Some members of CESH management hold a portion of CESH's shares and options
to buy CESH shares. They, like you, will also receive one share of CE Software
stock for each share of CESH stock they own as of the effective time of the
merger. Members of CESH management will not continue as officers and employees
of CESH after the merger. Some members of CESH management, however, will
continue as officers and employees of CE Software after the merger and
distribution of CE Software stock.

Q. WHY IS CESH PROPOSING THE MERGER?

A. We believe that the merger and the distribution of CE Software stock are in
your best interests, in light of the opportunity provided by the market for
ATIO's products and the shares of CE Software you will receive if the Agreement
and Plan of Merger is approved. We believe the merger and distribution of CE
Software stock represent the best opportunity to increase the long-term value
of the Company by allowing it to offer products and services in a growing
marketplace.

Q. WHAT WILL HAPPEN TO CE SOFTWARE AND ITS PRODUCTS?

A. CESH will distribute the shares of CE Software to its shareholders. This
distribution is sometimes referenced in this disclosure statement as the spin-
off. For each CESH share you own, you will receive one share of CE Software. We
expect the stock will trade on the OTC Bulletin Board. We believe the
development and sale of CE Software's current products will continue unabated.

                                       3
<PAGE>

Q. WHAT DO I NEED TO DO NOW?

A. After carefully reading and considering the information contained in this
disclosure statement, please fill out and sign your proxy card. Then mail your
completed, signed, and dated proxy card in the enclosed return envelope as soon
as possible so that your shares can be voted at the CESH annual meeting.

Q. IF MY SHARES ARE HELD IN "STREET NAME" BY MY BROKER, WILL MY BROKER VOTE MY
SHARES FOR ME?

A. Your broker will not be able to vote your shares without instructions from
you. You should follow the directions provided by your broker to vote your
shares.

Q. HOW DO I CHANGE MY VOTE AFTER I HAVE MAILED MY SIGNED PROXY CARD?

A. At any time before the CESH annual meeting, you may change your vote by
sending a written notice stating you would like to revoke your proxy or by
completing and submitting a new, later dated proxy card to the corporate
secretary of CESH. You may also attend the CESH annual meeting and vote in
person.

Q. WHEN DO YOU EXPECT THE MERGER TO BE COMPLETED?

A. We intend to complete the merger as soon as practicable after the annual
meeting, subject to satisfaction or waiver of the terms and conditions of the
Agreement and Plan of Merger. However, the Agreement and Plan of Merger is
subject to the following funding requirements, all of which must occur by
closing: (a) CESH must have, as of the date of closing, cash and short term
investments (including loans to ATIO) totaling approximately $5 million, (b) an
investment of approximately $965,000 must have been received from Minneapolis-
based Venturian Corp. (referenced below as "Venturian") (NASDQ: VENT); and (c)
a minimum of $1.5 million must have been received by CESH pursuant to a private
offering, the terms and conditions of which are yet to be determined. The
private offering by CESH will not be registered with the SEC. The securities
acquired through the private offering may not be sold or offered in the United
States, absent registration or an applicable exemption from registration.

Q. WHO CAN HELP ANSWER MY QUESTIONS?

A. After reading through this disclosure statement, if you have more questions
about the merger, you should contact:

    CE Software Holdings, Inc. 1801 Industrial Circle P.O. Box 65580 West
    Des Moines, Iowa 50265 Attention: Curtis W. Lack, Chief Financial
    Officer

                                       4
<PAGE>

                                    SUMMARY

   This summary highlights selected information from this disclosure statement
and may not contain all of the information that is important to you. For
additional information concerning the proposals being presented at the meeting
and the terms and conditions of the Agreement and Plan of Merger, you should
read this entire disclosure statement, including the appendices, and the other
documents referred to or incorporated by reference into this disclosure
statement. A copy of the Agreement and Plan of Merger is attached to this
disclosure statement as Appendix A.

The Proposals

   1. To elect five directors to hold office for the ensuing year or until
their successors are elected and qualified;

   2. To approve the Agreement and Plan of Merger, as amended and restated, (a
copy of which is attached as Appendix A to the proxy statement) dated as of
December 28, 1999 by which:

     (a) Atio Corporation USA, Inc. will merge with and into the Company;

     (b) The stock of the Company's subsidiary CE Software will be
  distributed to the Company's stockholders;

     (c) Willem Ellis, Thomas Patin,        ,         and         will be
  designated as directors of the Company to replace and become successors to
  those persons serving as directors of the Company immediately prior to the
  effective time of the merger;

     (d) The Company's Certificate of Incorporation will be amended as
  described in Exhibit 1.1.4 to the Agreement and Plan of Merger;

   3. To authorize the issuance of a maximum of 715,000 shares of common stock
in a private offering, at a per share price not less than $7.00, plus warrants
to purchase an equal number of additional shares of common stock at an exercise
price not less than $9.00;

   4. To amend the 1990 Stock Option Plan, 1992 Stock Option Plan, and
Nonemployee Directors Stock Option Plan by:

     (a) increasing the number of shares reserved to be issued upon exercise
  of options granted under the 1990 Stock Option Plan to 130,000;

     (b) prohibiting the granting of any further options under any of these
  plans; and

     (c) providing that all options granted under any of these plans to
  persons who were directors or employees of either CESH or CE Software
  immediately prior to the effective time of the merger, other than persons
  who will continue as employees of CESH, will be exercisable as of the
  effective time of the merger and for a period of three months thereafter;

   5. To adopt the 2000 Stock Option Plan; and

   6. To transact such other business as may properly come before the meeting
or any adjournment.

The Annual Meeting

 Date, Time, Place and Record Date (page 1)

   The annual meeting will be held at 1:30 p.m., Central Time, on
                      , 2000, at                       . The close of business
on March 10, 2000 is the record date for determining holders of shares of CESH
common stock entitled to vote at the annual meeting.

                                       5
<PAGE>


 Vote Required (page 55)

   Stockholders of record at the close of business on March 10, 2000, will be
entitled to vote at the meeting. At that date, the outstanding voting
securities of the Company consisted of                 shares of $.10 par value
common stock. If you are a holder of record of common stock at the close of
business on March 10, 2000, you will be entitled to one vote for each share
that you hold on each matter submitted to a vote of stockholders. Holders of
the common stock will vote together on all matters contained in this proxy
statement as one class. A majority of the outstanding shares will constitute a
quorum for the transaction of business at the annual meeting. We will count
abstentions and broker non-votes for purposes of determining the presence of a
quorum.

   We will count abstentions in tabulations of the votes cast on proposals
presented to the stockholders. Brokers and, in many cases, nominees will not
have discretionary power to vote on proposals to be presented at the annual
meeting. Therefore, if your shares are held of record by a broker or nominee,
you should instruct your broker or nominee as to how you would like to vote. We
will not count broker non-votes for purposes of determining whether a proposal
has been approved. Cumulative voting is not allowed.

   Directors will be elected under proposal #1 by a plurality of the votes cast
by the holders of shares entitled to vote at the meeting, provided a quorum is
present. According to Delaware law, the affirmative vote of the holders of a
majority of our outstanding shares entitled to vote at the meeting is required
to approve the Agreement and Plan of Merger. For this reason, your failure to
vote or your vote to abstain will have the same legal effect as a vote cast
against approval. All other matters will be determined by the majority of the
votes cast by the holders of shares entitled to vote at the meeting, provided a
quorum is present.

   Subject to your power to revoke, we will vote all shares represented by each
properly executed proxy according to the instructions indicated on the proxy.
If you do not include voting instructions on your proxy, we will vote your
proxy to approve the proposals. Directors, officers and one other person, all
of whom together hold approximately 35.8% of the outstanding shares, have
indicated their intention to vote in favor of the proposals.

Parties to the Agreement and Plan of Merger (pages 17-26)

   The Agreement and Plan of Merger was entered into as of December 28, 1999 by
and among CESH, ATIO and other parties described below.

   CESH. CESH is headquartered at 1801 Industrial Circle in West Des Moines,
Iowa 50265, phone number (515) 221-1801. It has, through its operating
subsidiary CE Software, developed automation utilities and e-mail software that
save time and effort for millions of Microsoft Windows 95/98, Windows NT and
Macintosh users. CESH will be the surviving corporation in the proposed merger.
CE Software maintains a Web site at http://www.cesoft.com.

   ATIO. ATIO is headquartered at One Corporate Center, 7301 Ohms Lane, Suite
600 in Edina, Minnesota 55439, phone number (612) 837-4000. ATIO provides all-
media customer service solutions for e-businesses. Its product CyberCall(R) has
won numerous awards including Editor's Choice awards, Judge's Pick, and
multiple Product of the Year awards from leading trade publications in the call
center and computer telephony arenas. CyberCall runs on Microsoft NT servers
and supports clients on Windows 95/98 and NT. Telephony functions are provided
via CT-Connect, CT Media, and hardware from Intel-Dialogic Corporation, an
Intel Company. ATIO maintains a Web site at http://www.atio.com.

   Other Parties. Other parties to the Merger include (i) CC Management, LLC, a
Delaware limited liability company ("Convergent"); (ii) Atio Corporation (Pty)
Ltd, a Republic of South Africa company, ("Atio (Pty)"); (iii) Atio
International, Inc., a Delaware corporation ("Atio International"); (iv)
Venturian Corp., a Minnesota

                                       6
<PAGE>

corporation ("Venturian"); (v) Ilan Sharon; (vi) Willem Ellis; (vii) Bouwe
Hamersma; and (viii) Mark Chodos. Venturian, Atio International and the four
individuals constitute all of the stockholders of ATIO and have each approved
the Agreement and Plan of Merger. Convergent, together with a number of
participants (the "Convergent Investors"), has loaned money to ATIO and owns
warrants to acquire stock of ATIO. Sheldon Fleck, a director of CESH, owns a
27.8% participation interest in Convergent. Ilan Sharon and Bouwe Hamersma are
employees of ATIO. Willem Ellis and Mark Chodos provide services to ATIO under
an agreement with Atio International.

The Proposed Transactions

 The Merger and the Distribution of CE Software stock (pages 40-49)

   The Agreement and Plan of Merger provides that ATIO will merge with and into
CESH. After the merger, ATIO will cease to exist as a separate entity and CESH
will continue as the surviving corporation. At the effective time of the
merger, we will issue stock, hereinafter referred to as the "merger
consideration" as follows: (i) each share of ATIO stock, approximately
13,345,000 shares, will convert into .06444777 share (subject to certain
adjustments) of our stock; (ii) warrants to purchase 930,000 ATIO shares owned
by the Convergent Investors will convert into 176,301 of our shares; and (iii)
certain other warrants to purchase 50,000 shares of ATIO stock will be
converted into 3,237 of our shares. Options to purchase 2,941,502 ATIO shares
granted under ATIO's stock option plans will be converted into options to
purchase approximately 190,000 of our shares (subject to certain adjustments).
In addition, 4,833 shares (subject to certain adjustments) will be issued to
Venturian to recognize a prior agreement by ATIO to issue 75,000 shares in
settlement of a dispute.

   Our obligation to complete the transactions contemplated by the Agreement
and Plan of Merger is subject to the fulfillment of certain conditions,
including funding of not less than $7.5 million to be received from the
following sources:

  . Venturian must have purchased 148,900 shares of CESH common stock for an
    aggregate amount of $964,872 ($6.48 per share), either by exchange of
    indebtedness, by cash payment or by a combination thereof;

  . Reasonable assurance that at the time of the merger, the Company will
    have cash and short term investments totaling approximately $5 million,
    including loans that we have made or may hereafter make to ATIO and
    anticipated proceeds from the exercise of CESH options and subject to
    certain adjustments;

  . Atio International and Atio (Pty) have provided funding to ATIO of
    $50,000-$60,000 per month from the date of the Agreement and Plan of
    Merger to the date of the merger;

  . A committed amount of net proceeds from investors, in a private offering
    of CESH securities of not less than $1,500,000.

   In addition to the above amounts, Atio International has the right and
obligation to purchase an additional 314,062 shares of CESH common stock for
$6.48 per share, for an aggregate purchase price of $2,035,122. This right will
be forfeited if the shares are not purchased and the purchase price paid on or
before May 31, 2000. The obligation to purchase the shares is secured by a
pledge of 314,062 of the shares that will be issued to Atio International as of
the date of the merger in exchange for its shares of ATIO common stock. Atio
International will forfeit the pledged shares to the extent it fails to
purchase and pay for the 314,062 new CESH shares on or before May 31, 2000.

   The Agreement and Plan of Merger provides that at the effective time of the
merger all options to purchase our shares granted under our old stock option
plans will vest except those granted to Thomas Patin. An amount equal to the
anticipated proceeds from the exercise of those options, which must be
exercised, if at all, within three months after the effective time of the
merger, will be placed in escrow and released to CE

                                       7
<PAGE>

Software as funds from the exercise of such options are received by us after
the merger. To the extent such options are not exercised, the escrowed funds
will be released to the Company three months after the effective time of the
merger. Options to purchase 74,000 shares granted to Thomas Patin in December
1999 are not affected by these provisions. Under the agreement with Mr. Patin,
his options will vest at the rate of 4,000 per month during the first 12 months
after the merger and the balance of the options will vest prorata monthly
during the second 12 months.

   The Agreement and Plan of Merger also provides that as of the effective time
of the merger, the Certificate of Incorporation of CESH will be amended to
increase the number of its authorized shares of common stock from 2,000,000 to
10,000,000, and to decrease the par value per share from $.10 to $.01.

   CESH will issue 1,044,429 shares of common stock to complete the merger and
Venturian will purchase 148,900 shares for $6.48 per share as provided for in
the Agreement and Plan of Merger. An additional 314,062 shares may be issued to
Atio International in exchange for payment of $6.48 per share under a right to
purchase contained in the Agreement and Plan of Merger. CESH will reserve
approximately 190,000 shares, approximately 88,000 of which will be exercisable
immediately after the merger, to be issued upon exercise of options held by
employees of ATIO. Prior to the merger, CESH will have also issued shares or,
other securities convertible into shares, in a private placement. In addition,
the operating company, CE Software will be distributed to shareholders in the
spin-off. You will receive one share of common stock of CE Software for each
share of CESH common stock you own as of the effective date of the merger.

 Background of the Agreement and Plan of Merger (pages 27-29)

   For a description of the events leading to the approval of the agreement by
the board, you should refer to "Background of the Agreement and Plan of
Merger".

 Board Position on the Agreement (page 17)

   The board has considered and approved the Agreement and Plan of Merger. The
board believes the terms of the Agreement and Plan of Merger are fair to and in
the best interests of CESH and its stockholders and, therefore, recommends you
vote "FOR" adoption and approval of the Agreement and Plan of Merger. The board
did not quantify or otherwise attempt to assign relative weights to specific
factors considered in making its determination. The board has not contracted
with a financial advisor of other consultant for the purpose of securing a
fairness opinion regarding the transactions contemplated in the Agreement and
Plan of Merger.

 Interests in the Merger and the Distribution of CE Software Stock that are
 Different from your Interests or Which May Present Conflicts of Interest
 (pages 29-30)

   In considering the board's recommendation that you vote in favor of the
Agreement and Plan of Merger, you should be aware that some of our directors
and officers have interests in the transactions that are different from your
interests as a shareholder, including the following:

  . Sheldon Fleck who is a director of the Company and has an interest in
    Convergent;

  . John S. Kirk who is the president of CE Software and has been designated,
    along with Richard A. Skeie and Donald M. Brown, to serve as members of
    the board of directors of CE Software after the distribution of CE
    Software stock.

 Required Funding (pages 47 and 52)

   Closing of the Agreement and Plan of Merger is conditional on the following
funding requirements, all of which must occur by closing: (a) CESH must have a
balance of approximately $5 million cash and short term investments (including
loans to ATIO); (b) Venturian must have invested $965,000 in exchange for
148,900 shares in the Company; and; (c) CESH must have obtained a minimum of
$1.5 million pursuant to a private

                                       8
<PAGE>

offering of a maximum 715,000 shares of its common stock at a minimum offering
price of $7.00 per share. Each share sold in the private offering will be
accompanied by a warrant to purchase one additional share at a minimum price of
$9.00. The exact terms of the private offering are yet to be determined.

 Other Conditions to the Merger; Termination (pages 47-49)

   In order for the parties to effect the merger and the spin-off, a number of
conditions must be met. For example, stockholders who hold a majority of our
outstanding common stock must approve the merger; the representations and
warranties of both parties must be true in all material respects at the
merger's effective time; and the financing for the merger must be completed.
Even if shareholders approve the Agreement and Plan of Merger, we cannot assure
you that it will be completed.

   At any time before the effective time of the merger, the boards of directors
of CESH and ATIO may mutually terminate the Agreement and Plan of Merger. We
may terminate the Agreement and Plan of Merger prior to the effective time if
the merger has not become effective on or before            , 2000, or in the
event of material misrepresentation or breach of warranties and representations
of ATIO (in the case of CESH) or CESH (in the case of ATIO) which has not been
cured within 30 days of notice.

 Expenses of the Agreement and Plan of Merger (page 43)

   CESH is obligated to have cash and short term investments of approximately
$5,000,000 as of the date of the merger. The following amounts may be credited
toward this obligation:

  . One-half (not to exceed $100,000) of the expenses of the merger;

  . All costs paid by CESH associated with obtaining subscriptions for the
    purchase of our shares from third party investors;

  . The salary and employee benefits paid to Thomas Patin; and

  . All loans CESH has made or may hereafter make to ATIO (currently totaling
    $1,741,000) and accrued interest.

   Otherwise, each of the parties will pay its own costs and expenses in
connection with the Agreement and Plan of Merger.

 Effective Time Of The Merger (page 40)

   The merger will become effective as of the later of the date we file a
Certificate of Merger with the Secretary of State of the State of Delaware and
the date we file Articles of Merger with the Secretary of State of the State of
Minnesota. We expect to file the Certificate of Merger and the Articles of
Merger as soon as practicable after the annual meeting, subject to approval of
the Agreement and Plan of Merger at the annual meeting and satisfaction or
waiver of the terms and conditions of the Agreement and Plan of Merger.

 Certain Effects of the Proposed Transactions (pages 35-36 and 41)

   If the shareholders vote to approve the Agreement and Plan of Merger and the
merger is completed, Willem Ellis, Thomas Patin,           ,            and
            will replace the existing members of the board as the directors of
CESH and will serve, until their respective successors shall have been duly
elected at the Company's annual stockholders' meeting in 2001, or appointed and
qualified, or until their earlier death, resignation, or removal. Therefore,
you should be aware that your vote in favor of the Agreement and Plan of Merger
is, in effect, a vote in favor of each of these persons as a nominee to the
board of directors to serve immediately after the effective time of the merger.

   The officers of ATIO holding office immediately prior to the effective time
will become the officers of the Company after the merger.

                                       9
<PAGE>


   If the Agreement and Plan of Merger is approved, the shares of CE Software
will be distributed to the stockholders of CESH of record immediately prior to
the effective time of the merger. You will receive one share of common stock of
CE Software for each share of CESH common stock that you own on that date.

   CESH will issue 1,044,429 shares (subject to adjustment) of common stock to
complete the merger and Venturian will purchase 148,900 shares for $6.48 per
share. In addition, we will issue an additional 314,062 shares to Atio
International if Atio International exercises its right to purchase that number
of additional shares for $6.48/share. The Company will reserve approximately
190,000 shares to be issued upon exercise of options held by employees of ATIO,
approximately 88,000 of which will be exercisable immediately after the merger.
As a result of this, your percentage of interest in CESH will be decreased.

 Accounting Treatment (page 49)

   The merger will be treated as a reverse acquisition of CESH (a "shell
company" as a result of the spin-off of its operating subsidiary, CE Software)
by ATIO under the purchase method of accounting. Under this accounting
treatment, ATIO will record the fair value of the tangible assets of CESH and
adjust ATIO's common stock and additional paid in capital to reflect the par
value of CESH's common stock, after giving effect to the number of shares
issued in the business combination. After the closing, financial statements of
the surviving corporation will reflect ATIO's financial condition, results of
operations and cash flows as the operating entity.

   CESH will treat the spin-off of CE Software as a distribution of property to
its shareholders. In doing so, CESH will contribute capital to CE Software
equivalent to the total of all sums currently owed by CE Software to CESH
(approximately $1,200,000).

 Certain Material Federal Income Tax Matters (pages 49-51)

   For Federal income tax purposes, we intend for the merger to qualify as a
reorganization within the meaning of Section 368(a)(1)(A) of the Internal
Revenue Code of 1986. As such, the merger will qualify as a tax-free exchange
with respect to the issuance of the CESH shares for all of the outstanding
shares of ATIO. CESH will be the surviving corporation and ATIO will go out of
existence.

   The Company believes that the distribution of CE Software stock to CESH
shareholders will be a taxable dividend equal to the fair market value of the
shares at the date of distribution. Furthermore, CESH will recognize gain, if
any, upon distribution of CE Software. However, the Company believes its basis
in CE Software will exceed the fair market value of CE Software at the time of
distribution and a loss will be realized by CESH, but not recognized for tax
purposes.

   You should consult your tax advisor regarding the U.S. Federal income tax
consequences of the merger and the spin-off, as well as any tax consequences
under state, local or foreign laws. Further discussion of tax matters are
presented below in this proxy statement.

 Dissenters' Right to Appraisal (pages 56-58)

   If you do not wish to vote to approve the Agreement and Plan of Merger, you
have the right under Delaware law to receive the fair value of your shares of
common stock, to be determined by a Delaware court. This appraisal right is
subject to a number of restrictions and technical requirements. Generally, if
you wish to exercise this right:

  .  you must not vote in favor of adopting and approving the merger; and

  .  you must make a written demand for appraisal before the vote on the
    merger.

   Merely voting against the Agreement and Plan of Merger will not perfect your
appraisal rights. Appendix B to this proxy statement contains the applicable
provisions of the Delaware General Corporation Law relating to appraisal
rights.

                                       10
<PAGE>


           SUMMARY SELECTED HISTORICAL FINANCIAL INFORMATION FOR CESH

   The following selected historical financial data for the three-month period
ended December 31, 1999 has been derived from the internal, unaudited
consolidated financial statements of CESH incorporated into this disclosure
statement. The following selected historical financial data for each of the
years ended September 30, 1999 and 1998 have been derived from the audited
consolidated financial statements of CESH incorporated into this disclosure
statement. This information is only a summary and should be read together with
the historical financial statements and related notes contained in this
disclosure statement and in the 10-KSB and other information that we have filed
with the SEC and incorporated by reference.

<TABLE>
<CAPTION>
                                                   Unaudited
                                                   3-months
                                                     ended        Years ended
                                                 December 31,    September 30,
                                                 --------------  --------------
                                                  1999    1998    1999    1998
                                                 ------  ------  ------  ------
                                                    (in thousands, except
                                                     per share amounts)
   <S>                                           <C>     <C>     <C>     <C>
   Income Statement Data:
   Net revenues................................. $  916     868   3,788   4,357
   Net (loss) earnings.......................... $  (74)    (24) (1,447)  3,691
   Basic earnings (loss) per share.............. $ (.07)   (.02)  (1.32)   3.37
   Shares used in per share calculation--basic..  1,110   1,096   1,098   1,096
   Diluted earnings (loss) per share............ $ (.07)   (.02)  (1.32)   3.32
   Shares used in per share calculation--
    diluted.....................................  1,110   1,096   1,098   1,113
   Balance Sheet Data:
   Total assets................................. $8,002  10,365   8,097  10,462
   Total liabilities............................ $  774   1,660     824   1,849
</TABLE>

           SUMMARY SELECTED HISTORICAL FINANCIAL INFORMATION FOR ATIO

   The following selected historical financial data for the nine-month period
ended September 30, 1999 has been derived from the internal, unaudited
financial statements of ATIO. The following selected historical financial data
for each of the years ended December 31, 1998 and 1997 have been derived from
the audited financial statements of ATIO. This information is only a summary
and should be read together with the historical financial statements contained
in this disclosure statement and related notes.

<TABLE>
<CAPTION>
                                                     Unaudited
                                                     9-months     Years ended
                                                       ended     December 31,
                                                   September 30, --------------
                                                       1999       1998    1997
                                                   ------------- ------  ------
                                                         (in thousands)
   <S>                                             <C>           <C>     <C>
   Income Statement Data:
   Net revenues...................................    $ 1,961       697     884
   Net loss.......................................    $(3,212)   (4,169) (3,272)
   Balance Sheet Data:
   Total assets...................................    $ 1,297       785     678
   Total liabilities..............................    $ 5,679     2,639     446
   Redeemable common stock........................    $   500       500     500
</TABLE>

                                       11
<PAGE>

                        PRO FORMA FINANCIAL INFORMATION

                  CE Software Holdings, Inc. and Subsidiaries

                   Unaudited Pro Forma Combined Balance Sheet
                               September 30, 1999

   The following unaudited pro forma combined balance sheet as of September 30,
1999 gives effect to: (1) the completion of the proposed merger with ATIO
(including the spin-off of CE Software) for aggregate consideration of
1,044,429 shares of CESH (which includes CESH shares issued due to the
conversion of approximately $1,991,000 of ATIO notes payable to affiliates into
ATIO common stock subsequent to September 30, 1999 as reflected in the
Agreement and Plan of Merger), (2) the private offering issuance of
approximately 218,750 shares of CESH at an estimated offering price of $8.00
per share, net of estimated offering costs of $250,000, for net proceeds of
$1,500,000 as required by the Agreement and Plan of Merger, (3) the purchase of
148,900 shares of CESH at $6.48 per share by Venturian as required by the
Agreement and Plan of Merger, and (4) the amendment by CESH of the par value of
its common stock from $.10 per share to $.01 per share as required by the
Agreement and Plan of Merger, as if each of (1) through (4) occurred on
September 30, 1999. As set forth in the Proposed Transactions--Accounting
Treatment, the proposed merger will be accounted for as a reverse acquisition
of CESH (a "shell company" as a result of the spin-off of its operating
subsidiary, CE Software) by ATIO.

   The following unaudited pro forma financial data may not be indicative of
what the financial condition of CESH would have been, had the transactions to
which such data gives effect been completed on the date assumed, nor are such
data necessarily indicative of the financial condition of CESH that may exist
in the future. The following unaudited pro forma information should be read in
conjunction with the notes thereto, the other pro forma financial statement and
notes thereto, and the historical financial statements and notes thereto of
CESH and ATIO included herein.

<TABLE>
<CAPTION>
                                                 CESH after
                                     CE Software CE Software               Pro Forma       Pro Forma
                             CESH     Spin-off    Spin-off      ATIO      Adjustments      Combined
                          ---------- ----------- ----------- -----------  -----------     -----------
<S>                       <C>        <C>         <C>         <C>          <C>             <C>
Cash and cash
 equivalents............  $4,126,637    405,238   3,721,399          300   1,500,000 (B)    6,186,571
                                                                             964,872 (C)
Short-term investments..   1,278,601        --    1,278,601          --          --         1,278,601
Accounts receivable.....     500,185    500,185         --       324,893         --           324,893
Due from affiliates.....         --         --          --       398,393         --           398,393
Inventory...............     250,208    250,208         --           --          --               --
Other current assets....     489,700    463,979      25,721      146,144         --           171,865
                          ----------  ---------   ---------  -----------  ----------      -----------
Total current assets....   6,645,331  1,619,610   5,025,721      869,730   2,464,872        8,360,323
                          ----------  ---------   ---------  -----------  ----------      -----------
Net property, plant, and
 equipment..............   1,410,460  1,410,460         --       426,838         --           426,838
Intangible assets.......      21,927     21,927         --           --          --               --
Other assets............      19,285     19,285         --           --          --               --
                          ----------  ---------   ---------  -----------  ----------      -----------
Total assets............  $8,097,003  3,071,282   5,025,721    1,296,568   2,464,872        8,787,161
                          ==========  =========   =========  ===========  ==========      ===========
Current portion of long-
 term debt..............  $  100,237    100,237         --     1,350,000         --         1,350,000
Trade accounts payable..     207,259    207,259         --     1,037,191         --         1,037,191
Due to affiliates.......         --         --          --        93,780         --            93,780
Other accrued expenses..     275,644    270,645       4,999    1,069,189         --         1,074,188
Notes payable to
 affiliates.............         --         --          --     2,128,537  (1,990,762)(A)      137,775
                          ----------  ---------   ---------  -----------  ----------      -----------
Total current
 liabilities............     583,140    578,141       4,999    5,678,697  (1,990,762)       3,692,934
Long-term debt, net of
 current portion........     240,859    240,859         --           --          --               --
                          ----------  ---------   ---------  -----------  ----------      -----------
Total liabilities.......     823,999    819,000       4,999    5,678,697  (1,990,762)       3,692,934
Redeemable common stock.         --         --          --       500,000    (500,000)(A)          --
Common stock............     110,567        --      110,567       76,000     (76,000)(A)       25,177
                                                                              10,444 (A)
                                                                               2,188 (B)
                                                                               1,489 (C)
                                                                             (99,511)(D)
Additional paid-in
 capital................   5,927,619  1,017,464   4,910,155    6,608,088   2,556,318 (A)   16,635,267
                                                                           1,497,812 (B)
                                                                             963,383 (C)
                                                                              99,511 (D)
Unearned compensation...                                         (26,687)                     (26,687)
Retained earnings
 (accumulated deficit)..   1,234,818  1,234,818         --   (11,539,530)        --       (11,539,530)
                          ----------  ---------   ---------  -----------  ----------      -----------
Total shareholders'
 equity.................   7,273,004  2,252,282   5,020,722   (4,882,129)  4,955,634        5,094,227
                          ----------  ---------   ---------  -----------  ----------      -----------
Total liabilities and
 shareholders' equity...  $8,097,003  3,071,282   5,025,721    1,296,568   2,464,872        8,787,161
                          ==========  =========   =========  ===========  ==========      ===========
</TABLE>

                                       12
<PAGE>

                  CE SOFTWARE HOLDINGS, INC. AND SUBSIDIARIES

               UNAUDITED PRO FORMA COMBINED SUMMARY OF OPERATIONS
                         Year Ended September 30, 1999

   The following unaudited pro forma combined summary of operations for the
year ended September 30, 1999 gives effect to the completion of the proposed
merger with ATIO (including the spin-off of CE Software) for 1,044,429 shares
of CESH (which includes CESH shares issued due to the conversion of
approximately $1,991,000 of ATIO notes payable to affiliates into ATIO common
stock subsequent to September 30, 1999 as reflected in the Agreement and Plan
of Merger) as if it occurred on October 1, 1998. As set forth in the Proposed
Transactions--Accounting Treatment, the proposed merger will be accounted for
as a reverse acquisition of CESH (a "shell company" as a result of the spin-off
of its operating subsidiary, CE Software) by ATIO.

   The following unaudited pro forma financial data may not be indicative of
what the results of operations of CESH would have been, had the transaction to
which such data gives effect been completed on the date assumed, nor are such
data necessarily indicative of the results of operations of CESH that may exist
in the future. The following unaudited pro forma information should be read in
conjunction with the notes thereto, the other pro forma financial statement and
notes thereto, and the historical financial statements and notes thereto of
CESH and ATIO included herein.

<TABLE>
<CAPTION>
                                                   CESH after
                                      CE Software  CE Software              Pro Forma    Pro Forma
                            CESH       Spin-off     Spin-off      ATIO     Adjustments    Combined
                         -----------  -----------  ----------- ----------  -----------   ----------
<S>                      <C>          <C>          <C>         <C>         <C>           <C>
Net revenue............. $ 3,787,868   3,787,868         --     2,312,907        --       2,312,907
Cost of revenues........     880,682     880,682                1,186,073                 1,186,073
                         -----------  ----------     -------   ----------    -------     ----------
Gross profit............   2,907,186   2,907,186         --     1,126,834        --       1,126,834
                         -----------  ----------     -------   ----------    -------     ----------
Sales and marketing.....   1,714,621   1,714,621         --     1,700,620        --       1,700,620
General and
 administrative.........   1,614,282   1,544,704      69,578    1,595,512     74,000 (G)  1,739,090
Research and
 development............   1,109,856   1,109,856                1,062,717                 1,062,717
                         -----------  ----------     -------   ----------    -------     ----------
Total operating
 expenses...............   4,438,759   4,369,181      69,578    4,358,849     74,000      4,502,427
                         -----------  ----------     -------   ----------    -------     ----------
Operating loss..........  (1,531,573) (1,461,995)    (69,578)  (3,232,015)   (74,000)    (3,375,593)
 Other income (expense):
 Interest income........     223,366       3,851     219,514          --                    219,514
 Interest expense.......     (33,706)    (33,706)        --      (652,434)   160,000 (F)   (492,434)
Loss on sale of
 investments and other,
 net....................    (578,078)   (578,078)
                         -----------  ----------     -------   ----------    -------     ----------
Total other income
 (expense)..............    (388,418)   (607,933)    219,514     (652,434)   160,000       (272,920)
                         -----------  ----------     -------   ----------    -------     ----------
Loss before income
 taxes..................  (1,919,991) (2,069,928)    149,936   (3,884,449)    86,000     (3,648,513)
Income tax benefit......    (472,935)   (472,935)        --           --         --             --
                         -----------  ----------     -------   ----------    -------     ----------
Net loss................ $(1,447,056) (1,596,993)    149,936   (3,884,449)    86,000     (3,648,513)
                         ===========  ==========     =======   ==========    =======     ==========
Average share common
 stock outstanding (E)..                                                                  2,510,474
                                                                                         ==========
Basic and diluted loss
 per share (E)..........                                                                 $    (1.45)
                                                                                         ==========
</TABLE>

                                       13
<PAGE>

                  CE SOFTWARE HOLDINGS, INC. AND SUBSIDIARIES

 NOTES TO UNAUDITED PRO FORMA COMBINED BALANCE SHEET AND SUMMARY OF OPERATIONS
                               September 30, 1999

(A) To record the proposed ATIO merger for 1,044,429 shares of CESH (which
    includes CESH shares issued due to the conversion of approximately
    $1,991,000 of ATIO notes payable to affiliates into ATIO common stock
    subsequent to September 30, 1999).

(B) To record the private offering issuance of 218,750 shares of CESH at an
    estimated offering price of $8.00 per share less estimated offering costs
    of approximately $250,000.

(C) To record the issuance of 148,900 shares of CESH to Venturian at $6.48 per
    share.

(D) To record the reclassification from common stock to additional paid in
    capital for the amendment of the par value of CESH common stock from $.10
    per share to $.01 per share for CESH shares outstanding at September 30,
    1999.

(E) For the purpose of determining pro forma basic and diluted loss per share,
    the proposed issuance of 1,044,429 shares for the ATIO merger, the proposed
    private offering issuance of 218,750 shares, and the proposed issuance of
    148,900 shares to Venturian were considered to have been outstanding from
    October 1, 1998.

(F) To record a reduction in interest expense, calculated at an average
    interest rate of 8.25%, resulting from the conversion of approximately
    $1,991,000 of ATIO notes payable to affiliates to ATIO shares.

(G) To record additional general and administrative expenses that, in the
    opinion of management, would have been necessary to operate CESH separately
    from CE Software from October 1, 1998.

                                       14
<PAGE>

                                  PROPOSAL #1

   TO ELECT FIVE DIRECTORS TO HOLD OFFICE FOR THE ENSUING YEAR OR UNTIL THEIR
                     SUCCESSORS ARE ELECTED AND QUALIFIED;

   THE BOARD OF DIRECTORS OF CESH RECOMMENDS THAT YOU VOTE FORPROPOSAL #1.

        NOMINEES FOR ELECTION AS DIRECTORS UNTIL THE MERGER IS EFFECTIVE

   All directors are elected for a one-year term and hold office until the next
annual meeting of the stockholders or the election and qualification of their
successors. The officers of the Company are elected at the Board's first
meeting following the annual meeting of the stockholders. Each officer holds
office until a successor is chosen and qualified or until death, resignation,
or removal. If the Agreement and Plan of Merger is consummated, these directors
will be replaced by those designated under the terms of the agreement.

   Subject to replacement under the terms of the Agreement and Plan of Merger,
the following persons have been nominated to serve as directors.

   Christian F. Gurney, 35, has been president and director of the Company, and
vice president of the Company's operating subsidiary, CE Software, since
October 1999, after serving as vice president and director of the Company, and
president and chief executive officer of CE Software since July 1997. From
November 1994 until his promotion in July 1997 he served as vice president of
product lines for CE Software . Mr. Gurney is responsible for strategic
direction and most notably the Company's recent move to make the QuicKeys
products more Windows centric. He joined CE Software in 1991 as manager of
technical support. He later served as director of technical services and then
as executive director of product lines. Prior to joining CE Software, Mr.
Gurney was the MIS manager for Catalog Media Corporation where he managed
multi-platform software development, as well as engineering, support and
training staff, programs, and strategies. Mr. Gurney also has held programming
positions at the University of Wisconsin and has done extensive consulting work
in the database-programming arena. Mr. Gurney holds a B.A. in Anthropology from
the University of Wisconsin.

   Richard A. Skeie, 46, has been vice president of the Company since October
1999 and a director since February 1990. He was president of the Company from
1990 to 1999 and president of its operating subsidiary from its formation
through April 1993 and from June 1996 through July 1997. His exposure to
computer programming at the University of Iowa and Drake University led him to
contract programming in the mid '70s in northern California where he viewed the
birth of the retail computer store concept. He returned to Iowa in April 1978,
and opened what is now Iowa's oldest computer store, Computer Emporium. Mr.
Skeie served as president of that company until 1985. CE Software began as the
programming arm of that computer store. In 1987, Mr. Skeie became president of
the newly independent CE Software. He has been a speaker at software industry
conferences and was the 1989 president of the Macintosh Special Interest Group
Council for the Software Publishers Association.

   John S. Kirk, 54, has been the president of the Company's operating
subsidiary, CE Software since October 1999 and has been secretary, treasurer
and a director of the Company since February 1990. He is a 1968 graduate of
Drake University, with a B.S. degree in Business Administration. He was
employed by Bendix Corporation until 1973 in its corporate offices and as a
plant controller, specializing in the establishment of computerized accounting
and cost control systems. He was employed as a CPA for Miller & Associates and
for KPMG LLP from 1973 to 1978 when he began his own accounting firm
specializing in small business taxation. He became involved in Computer
Emporium and CE Software in 1981. Mr. Kirk was a director of East Des Moines
National Bank, Des Moines, Iowa, until its sale in 1996. He is involved in
several family businesses.

   Sheldon T. Fleck, 49, has been actively engaged in venture capital
activities since 1988. He is currently and has been a director of CE Software
Holdings, Inc. since its founding in 1988 and was its president until the
merger with CE Software, in February 1990. Mr. Fleck was president and a
director of Gaming Corporation of

                                       15
<PAGE>

America from 1991 until its merger with Grand Casinos, Inc. in 1995. From its
inception until its acquisition by Grand Casinos, Inc., Mr. Fleck held various
positions with Grand Gaming Corp., the developer of Grand Casinos Tunica,
Mississippi, including being president and a member of the board of directors.
From 1990 to June 1992, Mr. Fleck served as president of Anubis II Corp., a
blind pool formed by him in 1990 which acquired Isle of Capri Casinos, Inc.,
in June 1992. Since June 1999 Mr. Fleck has been a director of iXmatch.com,
Inc. an internet-based consultant placement firm. Mr. Fleck has been actively
engaged in real estate and other business and corporate finance activities,
including restaurant development and, since 1979, as a general partner in York
Investments, LLP, a firm engaged in real estate syndication and management.
Mr. Fleck was a practicing attorney from 1977 to 1982. Mr. Fleck has passed
the certified public accountant examination and previously had been employed
by Ernst & Young, as an auditor, and by KPMG LLP, as a tax specialist. Mr.
Fleck received a B.B.A. degree from the University of Iowa with a major in
accounting in 1972, a law degree from Drake University School of Law in 1975
and a Master of Law degree specializing in taxation from the New York
University School of Law in 1977.

   David J. Lundquist, 57, has been a director of the Company since May 1993.
He has been managing partner of Lundquist, Schiltz and Associates since
January 1996. From 1991 to 1996, Mr. Lundquist was vice chairman and chief
financial officer of New Heritage Associates, a company engaged in the
acquisition and operation of cable television systems. Mr. Lundquist was
executive vice president--Finance of Heritage Communications, Inc., from 1980
to 1990. Prior to joining Heritage, Mr. Lundquist was the vice president--
Finance for a computer services company in Omaha. Mr. Lundquist is chairman of
the board of Da-Lite Screen Company, a manufacturer of movie screens and other
meeting-room products. He serves on the board of directors of Genesis Systems
Group, Ltd., a growth company in industrial robotics software and hardware
systems; Qtech, an early stage internet training company; Opticon Medical, a
medical device company; and MARKETLINK, a telemarketing company. Mr. Lundquist
attended Harvard University and graduated from the University of Minnesota
with a degree in economics in 1964. He received his M.B.A. degree from
Stanford University Graduate School of Business with a concentration in
finance in 1966.

ATTENDANCE AT BOARD AND COMMITTEE MEETINGS

   During the fiscal year ended September 30, 1999, the board of directors
held five meetings. All directors attended at least 75% of all meetings of the
board and of their respective committees.

   The stock option committee for the 1990 Stock Option Plan and the 1992
Stock Option Plan, currently consisting of Mr. Fleck and Mr. Lundquist, has
the authority to administer the plans for employees. This committee met three
times during fiscal 1999.

   The stock option committee for the Nonemployee Directors Plan, currently
consisting of Mr. Skeie and Mr. Kirk, has the authority to administer the Plan
for nonemployee Directors. This Committee met once during fiscal 1999.

   The audit committee, consisting of Mr. Kirk, Mr. Fleck and Mr. Lundquist,
monitors the Company's financial records, represents the Company in dealings
with the auditing firm and recommends to the board the selection of an
auditor. The audit committee met once during the fiscal year ended September
30, 1999.

   The compensation committee, consisting of Mr. Kirk, Mr. Fleck and Mr.
Lundquist, determines executive compensation. The compensation committee met
twice during the fiscal year ended September 30, 1999.

   The Company does not have a nominating committee.

DIRECTORS' FEES

   The Company pays a $1,500 per month fee to each of its outside directors,
Mr. Fleck and Mr. Lundquist.

                                      16
<PAGE>

                                  PROPOSAL #2

  TO APPROVE THE AGREEMENT AND PLAN OF MERGER DATED AS OF DECEMBER 28, 1999 BY
                                     WHICH:

(a) Atio Corporation USA, Inc. will merge with and into the Company;

(b) The stock of the Company's subsidiary CE Software will be distributed to
    the Company's stockholders;

(c) Willem Ellis, Thomas Patin,        ,         and         will be designated
    as directors of the Company to replace and become successors to those
    persons serving as directors immediately prior to the effective time of the
    merger; and

(d) The Company's Certificate of Incorporation will be amended as described in
    Exhibit 1.1.4 to the Agreement and Plan of Merger;

   THE BOARD OF DIRECTORS OF CESH RECOMMENDS THAT YOU VOTE FOR PROPOSAL #2.

   The board of directors has considered and approved the Agreement and Plan of
Merger. The board believes the terms of the Agreement and Plan of Merger are
fair to and in the best interests of CESH and its stockholders and, therefore,
recommends that you vote "FOR" adoption and approval of the Agreement and Plan
of Merger. The board based its recommendation on various factors, including the
following:

  . The terms and conditions of the Agreement and Plan of Merger;

  . The Company's assets, obligations, operations, and prospects and those of
    the industry in which it competes;

  . The Company's financial performance for the past five years;

  . Emerging trends in the e-commerce and e-business customer care solutions
    marketplace;

  . An analysis of the computer software industry generally;

  . The results of the board's efforts to determine whether there were other
    buyers for our business and/or assets;

  . A review of possible alternatives to the sale of our business and/or
    assets, including continuing the operations of CE Software as a wholly-
    owned subsidiary of the Company and/or liquidation of the Company's
    assets;

   In light of the variety of factors considered by the board, the board did
not quantify or otherwise attempt to assign relative weights to the specific
factors considered in making its determination. However, in the view of the
board, the potentially negative factors considered by them were not sufficient,
either individually or collectively, to outweigh the positive factors relating
to the merger. The board has not contracted with a financial advisor or other
consultant for the purpose of securing a fairness opinion regarding the
transactions contemplated in the Agreement and Plan of Merger.

   Some directors of CESH have an interest in the contemplated merger
transaction that may be different than yours. See "Interests of Directors and
Officers in the Merger and the Distribution of CE Software Stock that are
Different from Your Interests or which May Present Conflicts of Interest."

PARTIES TO THE AGREEMENT AND PLAN OF MERGER

   The Agreement and Plan of Merger was entered into as of December 28, 1999 by
and among CESH, ATIO, Convergent, Atio (Pty), Atio International, Venturian,
Ilan Sharon, Willem Ellis, Bouwe Hamersma and Mark Chodos. Atio International
and Venturian are stockholders of ATIO. Convergent, together with a number of
participants, has loaned money to ATIO and owns warrants that, at closing, will
be converted to shares of

                                       17
<PAGE>

CESH common stock. Ilan Sharon and Bouwe Hamersma are employees of ATIO. Willem
Ellis and Mark Chodos provide services to ATIO under an agreement with Atio
International. All ATIO shareholders have approved the Agreement and Plan of
Merger.

CESH.

   CESH is headquartered at 1801 Industrial Circle in West Des Moines, Iowa. It
has, through its operating subsidiary, CE Software, developed automation
utilities and e-mail software that save time and effort for millions of
Microsoft Windows 95/98, Windows NT and Macintosh users. CESH will be the
surviving corporation in the proposed merger. CE Software maintains a Web site
at http://www.cesoft.com. The business and operations of CESH are described in
the annual report on Form 10-KSB which has been sent to you along with this
disclosure statement.

ATIO.

   ATIO is headquartered at One Corporate Center, 7301 Ohms Lane, Suite 600 in
Edina, Minnesota 55439 and offers all-media customer service solutions for e-
businesses. CyberCall has won numerous awards, including Editor's Choice
awards, Judge's Pick, and multiple Product of the Year awards from leading
trade publications in the call center and computer telephony arenas. CyberCall
runs on Microsoft NT servers and supports clients on Windows 95/98 and NT.
Telephony functions are provided via CT-Connect, CT Media and hardware from
Intel-Dialogic Corporation, an Intel Company. ATIO maintains a Web site at
http://www.atio.com.

 Business of ATIO

   ATIO is a market leader in providing proactive e-business customer service
solutions to personalize the customer interaction experience and to build
customer loyalty. ATIO improves e-business customer loyalty by anticipating
customer needs and providing superior real time customer service response. It
implements unique solutions for a variety of companies that maintain a presence
on the Web for the purpose of marketing products or services or engaging in
person-to-person or business-to-business transactions. By using CyberCall,
these e-commerce companies or expanding brick and mortar businesses
(collectively referred to as "e-businesses") are able to deliver responsive,
personalized customer service via the customer-preferred communications medium,
including Web callback, chat, e-mail, Web collaboration, Voice over IP (VoIP),
fax and telephone. CyberCall's unique ability to enable customer service
anytime, anywhere, via a variety of media, gives e-businesses the competitive
edge in their marketplace. In addition, these e-businesses will experience:

  . Increased customer loyalty as a result of efficiently handled
    interactions;

  . Faster time to market because CyberCall easily integrates with legacy
    technologies; and

  . Greater operational effectiveness due to CyberCall's ability to
    prioritize interactions and route them to the customer-service
    representative (CSR) most qualified to handle them.

 Products

   CyberCall is an integrated, modular, and scalable all-media customer service
solution that can be tailored to meet specific e-business customer service
center requirements. The base of the CyberCall system is the Interaction
Gateway. This multimedia "traffic cop" interfaces with your e-business system
and handles the prioritization, routing and queuing of all types of
interactions independent of the media. Telephone calls, e-mails, faxes, Web
callback requests, Web chat and collaboration, interactive voice response (IVR)
and voice-over IP (VoIP) interactions are all handled in the same manner, based
on a company's particular business rules. CyberCall can be configured with one
or more of the media-access modules and interaction processing modules.

CyberCall Highlights:

  . All-media. CyberCall provides customers with a choice of media--
    telephone, e-mail, fax, Web callback, Web chat, Voice over IP (VoIP)--on
    one integrated platform.

                                       18
<PAGE>

  . Quick Deployment. CyberCall is an integrated solution that can be
    deployed quickly to allow a fast return on a customer's investment.

  . Modular. CyberCall can be configured to fit the needs for access media
    and interaction handling capabilities of most e-businesses.

  . Scalable. CyberCall scales from as few as ten and up to hundreds of CSRs
    per system. Multiple sites can be networked for support of decentralized
    customer service centers.

  . Reporting. CyberCall allows for real-time and historical reporting of all
    customer service center metrics for all media, thereby resulting in
    comprehensive and meaningful data.

  . Open Standards. CyberCall is built upon open standards for easy
    integration with e-commerce, data warehouse, back-office and business
    applications. Supported standards include OLE, DDE, ActiveX for data, and
    S.100 for voice processing resources.

  . Open Systems. CyberCall is built to operate on Microsoft Windows NT
    Server and SQL Server.

  . Switch independent. CyberCall integrates with most switches through a
    variety of interfaces.

   CyberCall is licensed to end customers on the basis of a once-off license
fee that takes into consideration the number of simultaneous users and modules
of CyberCall required by the end customer. Module prices for larger
configurations are significantly lower on a per-user basis. Additional charges
include services, maintenance, software upgrade, and third party components.

 Intellectual Property

   ATIO owns, in accordance with an agreement with Atio International, all
right title and interest in and to the CyberCall software (formerly known as
the AtioCall software) and claims copyright and trade secret rights therein.

   The Software was initially developed by Atio (Pty) and transferred to Atio
International in 1997. Development personnel at Atio (Pty) have continued to
provide development services and have enhanced the Software since that date.
Development personnel in the Republic of South Africa have a copy of the source
code, but the source code is delivered periodically to ATIO for assembly and
commercial release in object code form. All previous development work was
transferred to ATIO in accordance with a Technology Transfer Agreement.

   ATIO has endeavored to have each of its employees, and to the knowledge of
ATIO, Atio (Pty) has endeavored to have each of its employees, execute
nondisclosure and intellectual property assignment agreements.

   ATIO distributes the software in assembled (object code) form only, except
that ATIO did provide one copy of the source code to Siemens Business
Communications, Inc. pursuant to an OEM Agreement with Siemens dated March 2,
1998. In addition, Atio (Pty) deposited a copy of the source code with an
escrow agent pursuant to a source code escrow agreement with Nedcor Bank of
South Africa.

   All of ATIO's assets, including its intellectual property, are subject to
security interests held by Convergent, Venturian and CESH.

   ATIO currently holds a variety of trademarks, trademark applications, trade
names and registered copyrights but does not have exclusive rights to the use
of "ATIO" as a trade name or the stylized "A" used in the trade name and used
as a logo in various formats. Atio International has the right to use the trade
name and the mark and will retain these rights after the merger. ATIO has
agreed to transfer, effective as of the date of the merger, all of its rights
in the "ATIO" name to Atio International.

   ATIO filed a patent application with the U.S. Government Patent Office for
its "System with Multi-media Real Time Queque Monitor" on December 2, 1999.

                                       19
<PAGE>

   ATIO imbeds certain layer-two communication software licensed from Intel-
Dialogic Corporation into its software system for sale to end users. ATIO has
the right to sublicense such software, as imbedded into its products, to its
customers.

   ATIO also imbeds license monitoring software developed by Rainbow
Technologies in its software products to monitor license-use compliance under
individual license agreements that are established and resold with each
installation of the software. ATIO also embeds technology from DART
Communications under a similar "per occurrence" arrangement for e-mail related
software code used in its products.

 Target Market

   ATIO recognizes that its strongest market exists in the e-business arena
with customer service operations between ten and 200 CSRs. This market segment,
currently underserved by the industry, shows much greater growth potential than
the higher end of the market. For example, a fifty-seat customer service
facility could easily grow by 300% over an eighteen-month period. A center of
1,000 seats would not attain the same growth. The targeted e-businesses span
multiple vertical markets, including, but are not limited to, retail financial
services, healthcare, travel and retail apparel. In September of 1998, the All-
media version of CyberCall (CyberCall 3.0) was launched into the marketplace.

   A focused sales effort has been critical to the company's success. ATIO has
focused its efforts on several identified target sectors. These are:

  . Niche e-tailing

  . On-line brokerage

  . e-customer service providers

  . On-line entertainment i.e. cds, music, etc.

  . Niche on-line service providers.

   These sectors were identified because they have the following key attributes
that will provide the company with a substantial ability to be a recognized
leader.

  . Sector is "well funded" and has explosive growth.

  . Customer service is a strategic differentiator.

  . New entrants can compete with superior customer service.

  . Its focus is business to consumer.

  . Substantial market share can be obtained, but sector is not too large to
    get lost among competitors.

  . No competitor dominates the sector.

   As of August 1999, CyberCall 3.0 had been in full production as the all-
media customer service solution of seven innovative e-businesses: boo.com,
Stockwalk.com, babystyle.com, Invacare, Instant Impact, Gage Marketing and
State Capitol Credit Union. In addition United Health Care has deployed
CyberCall as an in-house demo for future company initiatives.

   CyberCall was developed by Atio (Pty) starting in 1993. In 1997, the
technology that comprises CyberCall and ATIO's management were combined with
Venturian Software Enterprises, Inc., a Minnesota corporation formed in October
1992. Venturian Software Enterprises, Inc. changed its name to Atio Corporation
USA, Inc. in November 1997.

 Market Opportunity

   ATIO is uniquely positioned to take advantage of the explosive growth in the
market space for e-businesses, whether new e-commerce companies or traditional
brick and mortars seeking Web-related expansion opportunities. CyberCall
addresses a large and growing demand for e-business customer service

                                       20
<PAGE>

solutions that deliver customer service via a variety of contact media. The e-
business world is extremely competitive. Because the Web has become such an
arena for instant gratification, e-shoppers recognize that a competitor's Web
site is only a mouse click away. Even customers who have historically been
loyal to a business could be lost following an unsatisfactory experience with
an e-business transaction. Only those companies delivering a high level of
customer service are going to be successful in building a loyal customer
following. Companies like boo.com, eStyle.com, Stockwalk.com, and other leaders
in their respective fields now recognize customer service as strategic to their
long-term growth and profitability.

  . According to the Patricia Seybold Group: "The lifetime value of your
    customers will increase in direct proportion to how easy you can make it
    for them to do business with you."

  . Gartner Group advises e-businesses to develop a customer communications
    strategy for all media types including the Web, for their customers and
    business partners.

  . ""Only 1/3 of the shoppers who place items in a shopping cart actually
    complete the purchase. In large part . . . this is due to the lack of
    real-time customer service help." Survey by Net Effect Systems--
    Inter@ctive Week, 8/99.

  . According to Ovum, the customer service center software market will grow
    from $580 million in 1998 to $3.1 billion in 2003.

  . A report by Frost & Sullivan forecasts growth of Web-enabled customer
    service center applications will rocket to $889.9 million in 2004 from
    $14.1 million in 1998. Including 1997's revenue of $4.9 million, the
    market's compounded annual growth rate is expected to total 110.4
    percent.

   In addition to the increasing need to rely on customer service for
competitive differentiation, ATIO believes technological change will be a key
driver in the growth of the e-business customer service market. ATIO believes
the CyberCall technology will provide e-businesses with the tools they need to
succeed in this arena.

CyberCall is designed to do this in the following ways when properly utilized:

   1. CyberCall increases customer loyalty. ATIO recognizes that behind every
e-transaction, there is a human being. In order to demonstrate the importance
of each customer, CyberCall has been developed to personalize the customer
service experience in the following ways:

     Customer Identification: CyberCall uniquely identifies each customer and
  allows self service or CSR-enabled contact. Any information submitted by
  the customer online is immediately sent to a CSR's screen. The CSR can even
  see the exact web page being viewed by the customer and can access
  historical data from the customer's account. The CSRs doesn't have to ask
  for a repeat of information and customers feel the human touch with every
  interaction.

     Differentiation: CyberCall differentiates one interaction from another
  and one customer type from another, based on pre-set value criteria.
  Interaction requests are analyzed by the CyberCall system to ensure that
  customers are routed to the CSR best able to meet their needs. If, for
  example, a Spanish-speaking customer requests a callback or other form of
  interaction, they can be assured that a Spanish-speaking CSR will be in
  touch with them.

     Interaction: With CyberCall, customers are able to interact on their own
  schedules, with their choice of media, always knowing they will receive
  superior customer service.

     Customization. Because each customer is identified right away, the
  CyberCall system can provide customized, personalized messages, banner ads,
  and information specific to that customer.

   Customers experiencing these personalized transactions will have the kinds
of positive experiences that will bring them back to the e-business time and
time again.

   2. CyberCall increases operational effectiveness. When a customer sends in
an interaction request via CyberCall through his or her contact medium of
choice, that request is automatically forwarded to the CSR with the best skill
set to handle it. Any information submitted online by the customer is matched
with historical

                                       21
<PAGE>

data about that customer and immediately appears on the CSR's screen, thus
personalizing the interaction and eliminating the need for the repeat of
information. The same personalization options are available for self-service
customers, through e-mail, interactive voice response (IVR), and fax on demand.
CyberCall's ease of integration between access media and back-end business
applications ensures that customer service center operators are able to provide
a more efficient contact experience to their customers. Interaction requests
are handled much more efficiently resulting in more calls being handled in a
shorter amount of time--and a notable increase in customer satisfaction.

   3. CyberCall ensures faster time to market. ATIO's implementation
methodology includes working closely with its customers to understand their
needs and goals prior to installing a CyberCall system. This initial time
investment, coupled with CyberCall's ability to interoperate with legacy
technologies, results in faster deployment and implementation time frames thus
enabling the e-business to readily begin interacting with its customers.
CyberCall is an attractive customer service solution for both "startup.com" and
"brick and mortar" type companies wishing to become viable e-businesses. Both
types of companies need to establish a rich All-media customer service
operation in order to be competitive. ATIO's strong market presence positions
the company as a leader that enables comprehensive, All-media customer service
for e-businesses.

 Reseller Partners

   ATIO's strategy is to establish customer reference sites through a direct
sales effort, while establishing strategic relationships with qualified
reseller partners. The goal is to eventually deliver 80 to 90% of revenues as a
result of sales through reseller partners. In this way, time to market will be
greatly compressed. The company continues to successfully implement its
reference customers, while building relationships with its committed
distribution partners.

   ATIO currently distributes CyberCall by means of direct sales and
relationships with strategically selected reseller partners. ATIO's primary
reseller partners are SE Technologies and Norstan Communications.

  . SE Technologies ("SET") is a premier Customer Relationship Management
    ("CRM") and Enterprise Resource Planning ("ERP") single-source provider
    focusing on the e-business industry sector. SET has chosen CyberCall as
    its exclusive All-media customer service solution for organizations with
    up to 200 CSRs. By integrating CyberCall with the Siebel Systems suite of
    front-end solutions, it is providing one of the most powerful e-CRM
    solutions for the e-business area. Recognizing the great market demand
    and its ability to meet it, SET has refocused its entire organization on
    providing e-business solutions. SET has made a strategic decision to
    position CyberCall as a key component of this initiative. SET has already
    seen tremendous market interest in the combination of these products.
    Current SET customers include Airborne Express, Pitney Bowes, Sealy and
    Bay Networks. SET is a privately held company with annual revenues of $60
    million.

  . Norstan, one of the world's largest Siemens Communications resellers,
    with annual revenues of $483 million, touts CyberCall as the All-media
    customer service solution offering for its customer service center
    clients. Norstan's strong corporate customer base in North America
    exceeds 20,000 accounts.

 Professional Services

   ATIO's professional services group partners with ATIO's direct sales force,
original equipment manufacturers ("OEMs") and value-added resellers ("VARs") to
provide turnkey solutions that include all hardware, software and training
required to create a successful solution. The implementation methodology
applied by this group includes pre-installation customer interaction assessment
and return on investment analysis, design, configuration of solutions, and
integration with third-party front office applications. Once there is a clear
understanding of customer needs and objectives, the professional services
organization manages the implementation, integration, training, maintenance and
follow-up support of the CyberCall system. Although each project varies
depending on the needs and existing infrastructure of the customer, ATIO
typically targets an implementation time frame from four to eight weeks. While
the company ultimately anticipates that

                                       22
<PAGE>

approximately 10%-15% of its revenues will come from professional services,
approximately 45% of its current revenues are from this area. This long-term
expectation is based on the partner delivery model.

 Research and Development

   ATIO's research and development efforts are focused on enhancing the e-
business-centric features of the product based on the Microsoft development
environment. To ensure that CyberCall systems easily integrate with the most
commonly used technologies today, technology partnerships have been formed and
interoperability testing has been done with products by IBM, Microsoft, and
Intel-Dialogic Corporation. ATIO manages strategic research and development
operations in the United States from its Minneapolis office. As a result of its
corporate history, ATIO maintains parts of its software development production
operations in the Republic of South Africa. ATIO plans to relocate this
function to the United States. ATIO started the immigration process with the
INS during the fourth quarter of 1999.

 History

   ATIO began development of CyberCall in late 1993, introduced the first
release of the product to a major cellular network operator in the first
quarter of 1994, presented the second generation of the product in the early
part of 1996, and launched CyberCall 3.0 in September 1998.

 Employees

   As of December 1999, ATIO has 45 full-time employees, with six employees in
executive management, seven in sales and marketing, 18 in product development
and engineering, 11 in professional services, two in finance, and one in
administration.

 Property

   ATIO is party to a sublease agreement among Zamba (sublessor), WHOCC Real
Estate, L.P. (lessor), and ATIO (sublessee). As a consequence, ATIO is the
beneficial tenant of suite 600 of an office building located at 7301 Ohms Lane,
Edina, Minnesota, 55439.

   ATIO shares office space in Singapore pursuant to an oral agreement. This is
a month-to-month arrangement.

 Management's Discussion and Analysis of Financial Condition and Results of
 Operations for ATIO

   RESULTS OF OPERATIONS

   The following discussion should be read in conjunction with the consolidated
financial statements and related notes included elsewhere herein. Historical
results and percentage relationships are not necessarily indicative of the
operating results for any future period. Within this discussion and analysis,
all dollar amounts have been rounded to the nearest thousand.

     REVENUES

   Nine Months Ended September 30, 1998 and 1999: Revenues increased from
$361,000 during the nine month period ended September 1998 (January 1, 1998
through September 30, 1998, referred to as "1998") to $1,961,000 during the
same period in 1999 (January 1, 1999 through September 30, 1999, referred to as
"1999"), an increase of 443%. Approximately 64% of ATIO's 1999 revenues were
from licenses, all of which were from ATIO's CyberCall product. Revenue from
software licenses increased by 539% compared to the prior period due to a
focused effort to market and sell the new version of CyberCall (version 3.0),
released in October 1998. Revenues from ATIO's services increased 329%, and
accounted for approximately 36% of revenues for 1999.

                                       23
<PAGE>

   Years Ended December 31, 1997 and 1998: Revenues decreased 21% from $884,000
in 1997 to $697,000 in 1998, primarily as a result of the Company phasing out
its reseller arrangements with non-CyberCall software product and service
customers that were not a strategic fit with the Company's new business model.
During the majority of 1998, the Company was strategically focused on further
development of the functionality of the product and preparing it for
implementation. Approximately 50% of ATIO's fiscal 1998 revenues were from
software license products, up from 21% in 1997. The difference in the
services/software mix between 1998 and 1999 is a demonstration of the growth in
ATIO's pure software sales. In 1998 non-CyberCall services were part of the
company's business until later in the year. In addition, a more significant
commitment to CyberCall related installment services was required to implement
the earliest versions of the product. The company's commitment to reducing the
technical effort required to install its software solutions has continually
resulted in a reduction in the services component of revenue.

   In 1998, revenue was generated from both CyberCall and the sale of products
developed by Magic Software, which was a third party vendor that ATIO (formerly
conducting business as Venturian Software Enterprises, Inc.) marketed as a
reseller. Since the first sale of CyberCall (version 2.5) occurred in January
1998, all of the revenues in 1997 were related to non-CyberCall products and
services that were either customized or project based, including some revenue
to Magic Software customers.

     COST OF REVENUES

   The Company's cost of revenues is composed primarily of: 1) the costs of
product materials such as manuals, diskettes, CD-ROMS, and packaging; 2) the
cost of servers and related peripheral equipment used by customers to run
CyberCall and warehouse data, and; 3) the labor required to install and
implement the CyberCall solution for customers.

   Nine Months Ended September 30, 1998 and 1999: Total cost of revenues, as a
percentage of revenues, decreased from 97% in 1998, to 52% in 1999. The higher
costs in 1998 were the consequence of disproportionately greater labor expense
required to install the earlier versions of the CyberCall product.

   Years Ended December 31, 1997 and 1998: Cost of revenues were 97% of
revenues in both 1997 and 1998. In 1998, services revenues declined by 50% and
yet the cost of service revenues remained high. This was the result of the
company retaining the technical staff and management required to support the
rapid increase in the number of services and implementations that were
anticipated by the end of 1998 and throughout 1999. The payroll expense related
to maintaining these professional services staff levels kept overall margins
low in 1998, which were further suppressed by the temporary reduction in
services revenue.

     SALES AND MARKETING

   Nine Months Ended September 30, 1998 and 1999: Sales and marketing expenses
increased 7% from $1,344,000 to $1,444,000 from 1998 to 1999, respectively.
Sales and marketing as a percentage of revenue decrease from 373% to 74%. This
improvement was due to gaining momentum in the market and due to cost
containment in the following expense categories: salaries and benefits, travel
and entertainment, and general marketing activities. Trade show and collateral
expenditures were reduced from 1998 to 1999 as the Company found more success
focusing its efforts primarily on direct sales efforts to a select e-business
customers.

   Years Ended December 31, 1997 and 1998: Sales and marketing expenses
increased $46,000 from 1997 to 1998 even though revenues declined. The Company
refocused its investments on hiring marketing professionals in the areas of
marketing communications, public relations, and telemarketing in 1998. This
resulted in higher sales and marketing costs as a percent of revenues, 176% and
230% in 1997 and 1998, respectively.

     GENERAL AND ADMINISTRATIVE

   General and administrative expenses are composed principally of salaries of
administrative and technical support personnel, fees for professional services,
amortization of other intangible assets, and facilities expenses.

                                       24
<PAGE>

   Nine Months Ended September 30, 1998 and 1999: General and administrative
expenses increased from $1,185,000 in 1998 to $1,372,000 in 1999. As a
percentage of revenues, general and administrative expenses actually declined
from 329% to 70%. This favorable trend as a percent of sales was primarily due
to managing overall expenses even while revenues increased. It was secondarily
due to lower occupancy costs in 1999 due to not having certain moving expenses
as in 1998.

   Years Ended December 31, 1997 and 1998: There were insignificant changes in
each of the expense categories of general and administrative expenses from 1997
to 1998. The expenses were $1,419,000 and $1,430,000, in 1997 and 1998,
respectively.

     RESEARCH AND DEVELOPMENT

   Nine Months Ended September 30, 1998 and 1999: Research and Development
expense decreased from $825,000 to $746,000 from 1998 to 1999. Limited
financial resources constrained the Company's expenditures in this area.

   Years Ended December 31, 1997 and 1998: Research and Development expense
increased from $267,000 to $1,105,000 from 1997 to 1998. The primary reason for
the increase was a significant effort on developing the Cyber Call product. The
biggest increase was due to salaries and benefits for the product development
team in South Africa.

     OTHER EXPENSE

   Other Expenses in all periods reflected interest expense with the exception
of 1999. The amount in this period included $480,000 for the recorded value of
warrants issued to ATIO's bridge lender.

  LIQUIDITY AND CAPITAL RESOURCES

   ATIO is currently dependent on short-term funding provided principally by
CESH in the form of secured notes due April 30, 2000. A plan has been put in
place to provide ample cash through this interim financing vehicle to fund the
growth of ATIO until the merger. At the closing of the merger, ATIO will
inherit a minimum amount of cash from CE and ATIO's current shareholders,
Venturian and Atio (Pty). It is anticipated that the aggregate amount of these
funds will approach approximately $8,000,000.

   In addition, CESH and ATIO are in the process of raising up to $5,000,000 of
capital through a private placement of common stock using an agent in a best-
efforts offering. The securities to be sold in this financing will also have
callable warrants attached for up to another $5,000,000 at a predetermined
strike price. The funds from all of these activities will be used for
marketing, sales, product development, professional services, and expansion of
infrastructure.

   In the longer term, beginning in 2001, the Company's ability to receive a
favorable market valuation will determine whether the warrants can be called.
Stock value will also have a material impact on ATIO's ability to successfully
complete a secondary offering or some other form of financing to fund the
business plan through fiscal 2001 and 2002. Market conditions will have a
substantial impact on each of these factors. ATIO's ability to maintain its
liquidity is heavily dependent on the success of each of these funding
activities.

Other Parties to the Agreement and Plan of Merger

   Convergent. Convergent is a Delaware limited liability company organized in
1998 and headquartered in Minneapolis, Minnesota. Convergent, together with the
Convergent Investors, has loaned $1,350,000 to ATIO. Sheldon Fleck, a director
of CESH, is a Convergent Investor and owns a 27.8% participation interest in
the Convergent loan. Trusts for the benefit of Mr. Fleck's children own
participation interests totaling 9.7% in the

                                       25
<PAGE>

same loan. The loan will be convertible, at the option of Convergent, into
168,750 shares of CESH stock after the merger, 63,281 of which would be issued
to Mr. Fleck and his children's trusts. As part of the consideration for the
loan, Convergent Investors received warrants to acquire 930,000 shares of
ATIO's common stock that will convert at the effective time of the merger into
176,301 shares of CESH common stock. Mr. Fleck will receive 28,984 of these
shares and his children's trusts will receive a total of 36,048 shares.

   Atio (Pty). Atio (Pty) is a private company organized under the laws of the
Republic of South Africa, and headquartered in Johannesburg, Republic of South
Africa. As of the date of execution of the Agreement and Plan of Merger, it was
the parent company of Atio International, one of the corporate stockholders of
ATIO. The technology of ATIO was originally developed by Atio (Pty).

   Atio International. Atio International currently owns 56.5% of the
outstanding shares of ATIO common stock. Atio International will receive
485,879 CESH shares in the merger. It has the right and obligation to purchase
an additional 314,062 shares of CESH common stock for an aggregate purchase
price of $2,035,122. This right will be forfeited if the shares are not
purchased and the purchase price paid on or before May 31, 2000. The obligation
to purchase the additional shares is secured by a pledge of 314,062 of the CESH
shares to be issued in the merger. These pledged shares will be forfeited to
the extent Atio International fails to purchase and pay for the 314,062
additional CESH shares on or before May 31, 2000. Together with the conversion
of its existing ATIO shares, Atio International will own 19.2% of the shares of
the Company immediately after the merger. This percentage could be increased to
28.2% if Atio International were to immediately purchase the additional 314,062
shares, and assuming that no other options, rights or warrants have been
exercised.

   Venturian. Venturian is a publicly traded (NASDAQ: VENT) Minnesota
corporation organized in 1983, headquartered in Hopkins, Minnesota. Venturian
currently owns 27.0% of the outstanding shares of ATIO common stock. Venturian
is obligated to purchase 148,900 shares of the Company's common stock for $6.48
per share on or before the effective time of the merger. Together with the
conversion of its existing ATIO shares, Venturian will own 15.3% of the shares
of the Company immediately after the merger.

   Ilan Sharon. Ilan Sharon is a resident of Minnesota, is an employee of ATIO,
and owns 400,000 shares of ATIO common stock that will be converted into 25,779
shares of the Company's common stock after the merger. Mr. Sharon holds options
that will be converted at the time of the merger into options to purchase 4,984
shares of CESH common stock, 1,246 of which will be exercisable immediately
after the merger. After the merger he will continue as an employee.

   Willem Ellis. Willem Ellis is a citizen of the Republic of South Africa now
living in Minnesota, is a director, officer and employee of ATIO, and owns
1,062,250 shares of ATIO common stock that will be converted into 68,459 shares
of the Company's common stock after the merger. Mr. Ellis holds options that
will be converted at the time of the merger into options to purchase 26,170
shares of CESH common stock, 6,543 of which will be exercisable immediately
after the merger. After the merger he will be a director, officer and will
continue to provide services.

   Bouwe Hamersma. Bouwe Hamersma is citizen of the Republic of South Africa
now living in Minnesota, is an employee of ATIO, and owns 292,250 shares of
ATIO common stock that will be converted into 18,834 shares of the Company's
common stock after the merger. Mr. Hamersma holds options that will be
converted at the time of the merger into options to purchase 16,112 shares of
CESH common stock, 4,028 of which will be exercisable immediately after the
merger. After the merger he will continue as an officer and employee.

   Mark Chodos. Mark Chodos is citizen of the Republic of South Africa now
living in Minnesota, is an employee of ATIO, and owns 451,500 shares of ATIO
common stock that will be converted into 29,098 shares of the Company's common
stock after the merger. Mr. Chodos holds options that will be converted at the
time of the merger into options to purchase 20,598 shares of CESH common stock,
5,149 of which will be exercisable immediately after the merger. After the
merger he will continue to provide services.

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<PAGE>

BACKGROUND OF THE AGREEMENT AND PLAN OF MERGER

   In June 1999, the board of directors of CESH held a meeting to discuss the
condition of CESH and the consolidated operating results of the Company. The
board members were concerned about the potential market value of the Company
and what steps they could take to increase shareholder value. The board
observed that the continuing losses of CESH, coupled with a shift in the market
for the products of its operating subsidiary CE Software and a poor outlook for
the appreciation of CESH stock based solely upon the subsidiary's operating
performance, dictated that new directions be examined.

   The board considered a number of potential actions that could be taken
individually or collectively to improve shareholder value in CESH. These
actions included new product and service initiatives, sale of the company, sale
of its operating subsidiary, sale of assets, liquidation of the Company, or a
merger. A wide range of alternatives within each of these initiatives was
discussed and analyzed.

   The board concluded that no new major internally funded or directed product
or service initiatives should be started. In making this decision, the board
considered that in recent years all such initiatives had failed to reach their
desired revenue and profit levels. For this reason, the board felt that a
Company investment in new products would be costly from both a time and
financial point of view and would carry an unacceptable level of risk. The
board decided that the interests of the Company could best be served if they,
along with other members of management, vigorously pursued sale of the
Company's assets, constructed and analyzed a liquidation scenario, and began to
search for merger candidates.

   Throughout the summer months of 1999, CESH pursued the sale of CE Software
assets, principally the software products QuicKeys and QuickMail. Dozens of
potential buyers in the software industry were contacted to gauge their
interest. In general, few expressed any serious interest and many indicated
they had no interest. A few verbal indications of interest were received, but
in all cases the proposed terms provided for a nominal payment at the time of
sale, with the remainder of the consideration to be paid as a royalty based
upon future sales as they occurred. The board was briefed on these discussions.
An agreement based on an immediate nominal cash payment followed by future
royalties was unacceptable to the board. Members of the board continued to
believe there was a way for CESH to preserve fair value for its products and to
transfer that value to CESH shareholders. On August 4, 1999, Mr. Gurney
reported to the board that the identified potential buyers had been contacted;
no acceptable interest had been expressed in purchasing the assets; and,
considering the conditions in the software market at that moment in time, none
should be expected in the near future.

   Management performed a liquidation analysis for CESH and its subsidiaries.
The major consolidated assets of CESH included approximately $5 million in cash
and short-term investments, a 21,000 sq. ft. office and warehouse structure in
West Des Moines, Iowa, purchased hardware and other physical assets and the
software products discussed above. The principal asset that emerged was the $5
million in cash and, to some extent, the publicly traded status of CESH. The
other assets were determined to be immaterial to a positive liquidation value.
As described above, the value of the software assets is directly linked to the
value a potential purchaser places upon them. Because the potential market
value of the software assets seemed low, a correspondingly low value was used
in the liquidation analysis.

   After concluding the value to be received by either selling our assets or
liquidation was inadequate, the board focused its efforts on locating and
evaluating merger candidates. Messrs. Gurney, Kirk, Lundquist, and Fleck formed
the evaluation team. Throughout the period of evaluation, approximately 100
individual companies and opportunities representing a wide range of industries,
business plans and stages of company maturity were considered. Through a
process of elimination, a core group of eligible companies and business plans
was selected. The areas of business concentration largely centered on utilizing
the Internet to provide either a product or service. The businesses ranged from
on-line music distribution, to financial services to on-line training to e-
commerce. In addition to these candidates, Mr. Fleck submitted ATIO for
consideration. By August, CESH had compiled a list of four attractive merger
candidates, of which ATIO was one.

   In August, Mr. Gurney visited ATIO and one other merger candidate, after the
board had determined that these two candidates seemed to represent appropriate
opportunities for increasing shareholder value. Mr. Gurney met with the ATIO
management team and received a briefing on the company, market space and

                                       27
<PAGE>

witnessed a demonstration of the CyberCall customer-care solution. After the
visit, informal discussions ensued within CESH that considered the four
candidates and eliminated two on the basis of a) the state of their respective
markets, and b), the stage of the business plan development. Further analysis
of ATIO and the other remaining candidate ensued, with particular emphasis on
comparing the respective potential market growth, competitive landscape,
comparable company valuations, stage of business, management team, technology,
percentage of ownership opportunity, risk profile and other factors. The board
then held a meeting on September 13, 1999, discussed the merits of merging with
either or none of the companies, and unanimously determined to open
negotiations leading to a merger with ATIO. Mr. Fleck, due to his interests in
ATIO, recused himself from the vote.

   ATIO became the leading merger candidate because the board saw several
attributes that provide the potential for it to be a successful company:

  . The board believes e-commerce/e-business infrastructure solutions
    companies have the potential to succeed in today's market.

  . The board thinks ATIO's specific market is well understood and therefore
    has good growth potential.

  . The customer care solution offered by ATIO appears to solve an obvious
    problem in the marketplace.

  . Based on financial statements provided to CESH, ATIO has experienced over
    400% revenue growth in the past year,

  . Public offerings from comparable companies had been well received by the
    investment sector.

  . The board is favorably impressed with the quality and completeness of the
    technical solution offered by ATIO.

  . The board believes the merger offers potential benefits to CESH
    shareholders.

   The board also considered factors about ATIO that detract from its chances
of success:

  . Small number of customers,

  . Under-capitalization,

  . Accumulated deficit from operations,

  . Accumulated debt,

  . A geographically dispersed workforce, and

  . Complex equity and debt capital structure.

   Beginning on September 16, 1999, a negotiation team consisting of Messrs.
Gurney and Kirk opened discussions with ATIO to lead to a nonbinding term
sheet. A wide range of discussions ensued with a resulting nonbinding term
sheet being signed on October 28, 1999. In the process of negotiating the
terms, the parties agreed to changes in the corporate legal structure,
restructuring of debt and other matters to address some the board's concerns
discussed above. Immediately after the execution of the nonbinding term sheet,
a due diligence team began its on-site and remote review of ATIO. At the same
time, negotiations for and drafting of an Agreement and Plan of Merger
commenced. The due diligence team consisted of Mr. Gurney and Curtis Lack (the
chief financial officer of CESH) and worked closely with legal counsel.

   Subsequent to signing the nonbinding term sheet, CESH and Venturian each
loaned $150,000 in working capital to ATIO, secured by ATIO's intellectual
property assets. Atio (Pty) continued to advance funds to the development team
for credit through Atio International. CESH loaned a total of $450,000 to ATIO
prior to the signing of the Agreement and Plan of Merger. These loans were
necessary to maintain ATIO's operations and to protect the value of the company
during the period of due diligence and negotiation of an Agreement and Plan of
Merger. As of the date of this disclosure statement, CESH has loaned a total of
$1,741,000 to ATIO. These loans are accounted for as part of the financing that
will be available to the post-merger company. It is anticipated that additional
sums will be loaned to ATIO before the merger.

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<PAGE>

   On October 6, 1999, CESH took action to reduce the operating expenses for CE
Software. At this time, it was not clear if the assets of CE Software would be
liquidated or if CE Software would be distributed to shareholders. In either
case, we thought it wise to take measures to reduce operating expenses. CE
Software was restructured and 12 jobs were eliminated. We recognized that the
merger would require experienced resources be dedicated to the deal. Mr. Gurney
was thus promoted to president of CESH and assigned to the ATIO merger deal.
Mr. Kirk was named president of CE Software and assumed the responsibilities
for the daily operations of the subsidiary.

   In determining whether the Agreement and Plan of Merger would be in the best
interests of the shareholders, the directors also considered what the future
could hold for CE Software without the support of CESH. The board of directors
recognized several elements of potential value in CE Software, including
products, customers and employees. Concerns about CE Software's continuing
losses and unfavorable developments in the market for it products were
considered. Mr. Kirk and key employees of CE Software, however, believed that
CE Software's operations could be made profitable and that new initiatives
could be developed without continued financing from CESH.

   During an October 14, 1999 meeting, the board discussed the progress of
negotiations, due diligence and the disposition of CE Software. The board
discussed the relative merits of liquidating CE Software versus distributing it
to CESH shareholders. The main discussion centered on the issue of how much
value would be transferred to shareholders. Mr. Kirk was supportive of
distributing ownership of CE Software to CESH shareholders. Because of his
support of a spin-off and his position as CE Software president, Mr. Kirk was
invited to prepare a proposal for the ongoing operations of CE Software. CESH
management was directed to prepare an analysis of the liquidation of CE
Software based upon asset values, contingent liabilities, customer and legal
liabilities.

   On November 17, 1999, Mr. Kirk made a presentation of the proposal to spin
off CE Software from CESH at the time of the merger with ATIO. He noted that CE
Software's workforce had been reduced by 27% in October. Mr. Kirk's proposal
included a draft budget for the fiscal year supporting his belief that, with a
reduced workforce and other cost-saving steps, CE Software could operate
profitably as an independent company. Management provided an analysis of the
liquidation value of CE Software. The general findings of the board were that
it would be in the best interests of protecting shareholder value for CE
Software to be spun off from CESH. The board discussed the need to provide
adequate initial capitalization of CE Software. The board voted and unanimously
approved the proposed distribution of CE Software stock. Mr. Kirk did not
participate in the voting with regard to the proposed distribution of CE
Software stock.

   On December 28, 1999, the Agreement and Plan of Merger was signed and
announced to the public.

INTERESTS OF DIRECTORS AND OFFICERS IN THE MERGER AND DISTRIBUTION OF CE
SOFTWARE STOCK THAT ARE DIFFERENT FROM YOUR INTERESTS OR WHICH MAY PRESENT
CONFLICTS OF INTEREST

   In considering the recommendation of the board with respect to the proposal
to approve the Agreement, shareholders should be aware that certain members of
the board have interests which may present them with conflicts of interest in
connection with the merger. The board was aware of those interests and
considered them, among other matters, in approving the Agreement and Plan of
Merger. The board's recognition of those interests was a factor in its
determination to call the annual meeting and submit to CESH shareholders the
proposal to approve the Agreement and Plan of Merger.

   We also believe you should recognize that Christian Gurney, president and a
director of CESH; Curtis W. Lack, chief financial officer; Sheldon Fleck, a
director of CESH; John S. Kirk, secretary, treasurer, and a director of CESH;
Richard A. Skeie, vice president and a director of CESH; and David Lundquist, a
director of CESH, will resign from their officer and director positions of CESH
effective with the merger. None of them will be involved with the post-merger
CESH as employees, directors or officers. Mr. Kirk, however, has been

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<PAGE>

designated president of CE Software and will continue in that position after
the spin-off. Mr. Kirk, Mr. Skeie and Mr. Brown will be the members of the
board of directors of CE Software after the distribution of CE Software stock
in the spin-off.

   John S. Kirk has an indirect interest of 100% in Prairie Group, Inc., which
employs Donald M. Brown. Mr. Kirk is the President of Prairie Group, Inc.
Prairie Group, Inc. owns approximately 15% of PrairieSoft, Inc. PrairieSoft,
Inc. has a variety of business relationships with CE Software, the most
significant of which are summarized below:

     (i) made royalty payments to CE Software for the purchase of
  CalendarMaker and QuickConference in the aggregate amounts of $29,230 in
  1999 and $53,357 in 1998,

     (ii) paid commissions to CE Software for the resale of CalendarMaker in
  the amounts of $3,078 in 1998 and $3,904 in 1999, and

     (iii) received payments from CE Software in the amounts of $143,849 in
  1998 and $66,477 in 1999 for packages of CalendarMaker and QuickConference
  distributed through CE Software.

   We also believe you should recognize that Sheldon Fleck, a director of CESH,
has interests which present him with conflicts of interest in approving and
recommending the merger. Mr. Fleck owns a 27.8% participation interest in a
$1,350,000 loan to ATIO as a participant in financing offered by Convergent.
Trusts for the benefit of Mr. Fleck's children have participation interests
totaling 9.7% in the same loan. The loan was funded at various times between
March and June 1999. The loan is convertible into shares of CESH stock, at the
option of Convergent, at the rate of $8.00 per share. If converted, Mr. Fleck
would receive 46,875 shares of CESH stock and his children's trusts would
receive a total of 16,406 shares of CESH stock. In connection with Mr. Fleck's
participation interest in the Convergent financing, he received a warrant to
purchase shares of ATIO stock which will convert into 28,984 shares of CESH
stock at the effective time of the merger. Trusts for the benefit of Mr.
Fleck's children received warrants to purchase shares of ATIO stock which will
convert into a total of 36,048 shares of CESH stock at the effective time of
the merger. Mr. Fleck disclaims any beneficial ownership in the loan
participation interests and warrants owned by the trusts for the benefit of his
children because he exercises no control over these trusts.

   Mr. Fleck has expressed an interest in participating in the private offering
of securities the Company must close prior to the effective time of the merger.
The total amount of the private offering will be no less than $1.5 million. The
terms of the offering and the extent of Mr. Fleck's participation, if any, have
not yet been determined.

                       RISK FACTORS RELATED TO THE MERGER

ATIO has never generated profitable operations and it is uncertain whether it
ever will be profitable.

   ATIO has never generated a profit. ATIO had accumulated losses of $8.3
million through December 31, 1998. For the nine-month period ending September
30, 1999, ATIO recorded unaudited revenue of $1,961,000 for a loss of
$3,212,000. A number of factors have influenced ATIO's profitability, including
the lack of financing, the inability to invest in growth of reseller
partnerships, limited marketing investment, the substantial competition in the
call center software market, the lack of significant customer experience with
CyberCall in the United States, and the rapidly changing nature of computer
telephony technology. We cannot be certain that these factors will not continue
to negatively influence our profitability.

ATIO is dependent on the services of its technical staff and of Willem Ellis,
its CEO and founder, and would be severely effected if Mr. Ellis and such staff
were no longer available.

   The success of ATIO is dependent in large part upon its ability to attract
and retain key management and operating personnel, as well as technical staff.
Such individuals are in high demand and are often subject to

                                       30
<PAGE>

competing offers. In the future, ATIO will need to hire additional skilled
personnel in such areas as general management, research and development, sales,
marketing and manufacturing. There can be no assurance that ATIO will be able
to attract and retain the qualified personnel needed for its business or that
such personnel will be available locally.

   In addition, ATIO's future success will depend on its ability to retain the
services of its officers and directors, especially Willem Ellis, its founder,
director, President and Chief Executive Officer. The loss by ATIO of the
services of Mr. Ellis would have a material adverse effect on ATIO.

Several important members of ATIO's technical staff and management are neither
citizens nor residents of the United States of America.

   A large number of ATIO's technical staff and a majority of its current
management are not citizens of the United States of America. Obtaining the
necessary approvals and visas for these personnel to both work in the United
States and to immigrate if necessary is a complicated and lengthy process which
is outside ATIO's control. Delay in or refusal to grant appropriate visas to
these personnel, may cause the future development of the products or the
operations of the Company to be adversely affected. Currently, fifteen of
ATIO's development staff reside in the Republic of South Africa and the Company
plans to arrange for the majority of these people to relocate to the United
States within the next six months, or as soon as governmental approvals can be
obtained. ATIO started the immigration process with the INS in the fourth
quarter of 1999.

There are a number of other companies developing products for the multiple
media call-center market.

   Although ATIO believes it has a technologically advanced product, there are
a number of other companies that are developing products to allow
communications in multiple media to be handled by call-center personnel. In
addition, a number of companies offer products that perform some of the same
functions as ATIO's software products. Some of ATIO's existing competitors, as
well as a number of potential competitors, have larger technical staffs, more
established and larger marketing and sales organizations, and significantly
greater financial resources than ATIO. There can be no assurance that such
competitors will not develop products that are superior to ATIO's products or
that achieve greater market acceptance. ATIO's future success will depend
significantly upon its ability to increase its share of its target markets and
to license additional products and product enhancements to existing customers.
There can be no assurance that ATIO will be able to compete with companies that
have significantly greater resources and contacts within the industry, or that
competition will not have a material adverse effect on ATIO's results of
operations.

The computer software market is changing rapidly and access to service bureaus
and other distributed computing techniques over the Internet and other wide-
area networks could affect ATIO.

   The computer industry is characterized by rapid technological advances,
changes in customer requirements, and frequent new product introductions and
enhancements. ATIO's future success will depend upon its ability to enhance its
current products and to develop and introduce new products that keep pace with
technological developments, respond to evolving customer requirements, and
achieve market acceptance. In particular, although ATIO believes its products
are well suited to support e-commerce, ATIO believes it must continue to
respond quickly to user needs and use of expanding Internet capabilities. Any
failure by ATIO to anticipate or respond adequately to technological
developments and customer requirements, or any significant delays in product
development or introduction, could result in a loss of competitiveness and
revenues. There can be no assurance, however, that the Company will be
successful in developing and marketing new products or product enhancements on
a timely basis or that the Company will not experience significant delays in
the future which could have a material adverse effect on its results of
operations. In addition, there can be no assurance that new products or product
enhancements developed by ATIO will achieve market acceptance.

ATIO will rely primarily on trade-secret protection, and we cannot assure you
that a competitor would not copy its software.

   The Company's success after the merger may depend in part on ATIO's ability
to preserve its trade secrets and to operate without infringing the proprietary
rights of third parties. Although ATIO currently holds

                                       31
<PAGE>

trademarks related to its product offerings, and distributes its software only
in object code, there can be no assurances that such measures would present a
substantial barrier to entry by a competitor. The Company may lack the
financial and legal resources effectively to pursue infringers of its
intellectual property rights. Moreover, ATIO cannot be certain that its
products do not infringe upon proprietary rights held by others, and in the
event there are patent infringement suits by other companies, any litigation
could result in substantial cost to, and diversion of effort by, ATIO.

Additional licenses may be required.

   ATIO has one client access license with Microsoft under the assumption that
only one client access license is needed per server. This is because only the
CyberCall software, and not multiple agents, actually needs to access the
database. There is potential that the rules could be interpreted that each
agent must have a client access license.

ATIO's quarterly operating results have varied significantly.

   ATIO's operating results have varied significantly from quarter to quarter
and may continue to do so in the future. As a result, we believe that period-
to-period comparisons of ATIO's operating results are not necessarily
meaningful, and you should not rely on them as an indication of the company's
future performance. Fluctuations in operating results in the future could also
cause the price of CESH common stock to fluctuate.

   The fluctuations in ATIO's operating results have been caused by a number of
factors, including many that are beyond the company's control. For example,
ATIO does not know when its potential end-user customers will place orders and
finalize contracts. Revenue is generally recognized in the same quarter that an
order producing that revenue is received. As a result, quarterly revenues and
operating results for ATIO depend primarily on the size, quantity and timing of
orders received for its products during each quarter. If a large number of
orders or several large orders do not occur or are deferred or delayed,
revenues in a quarter can be substantially reduced.

   Although ATIO revenues have fluctuated, rent, salaries and many other fixed
expenses have not. As a result, ATIO's business, financial condition and
results of operation have been adversely affected in times of lowered revenues.

   ATIO's limited number of products, changes in pricing policies and the
timing of the development, announcement and sale of new or upgraded versions of
its products and a lengthy sales cycle are additional factors that could cause
revenues and operating results of CESH as the surviving corporation to vary
significantly from quarter to quarter in the future.

ATIO has a lengthy product sales cycle.

   The risk of revenue fluctuation is heightened by ATIO's historically lengthy
sales cycle. ATIO's product sale cycle has averaged approximately six to nine
months. This lengthy cycle is partly a result of the unique characteristics of
its products. A decision to license the products often is made only after
executive level decision making. We believe that many companies currently are
not aware of the benefits of ATIO's software products and capabilities. To
respond to this lack of familiarity, ATIO has provided considerable amounts of
education to prospective end-user customers about the benefits of its products.
The combined processes of education and executive decision-making can take many
months. As a result, sales cycles for end-user customer orders vary
substantially from customer to customer. Excessive delay in product sales could
materially adversely affect the surviving company's business, financial
condition and results of operations.

   The length of the sales cycle for end-user customer orders depends on a
number of other factors over which we will have little or no control,
including:

  . an end-user customer's budgetary constraints;

                                       32
<PAGE>

  . the timing of an end-user customer's budget cycles;

  . impact on multiple areas of the customer organization;

  . concerns by end-user customers about the introduction of new mission
    critical products by ATIO or its competitors; and

  . potential downturns in general economic conditions, including reductions
    in demand for customer service centers.

The surviving company could be unable to successfully manage its growth or its
increasingly complex third party relationships.

   ATIO has grown revenues from $697,000 in calendar year 1998 to $1,961,000 in
the first nine months of 1999. CESH, as the surviving corporation, intends to
continue to grow business operations significantly in the future. ATIO's
existing management, operational, financial and human resources and management
information systems and controls may be inadequate to support future
operations. In addition, as the complexity of product technology and reseller
and other third-party relationships have increased, the management of those
relationships and the negotiation of contractual terms sufficient to protect
the company's rights and limit its potential liabilities has become more
complicated. We expect this trend to continue in the future. As a result, our
inability to successfully manage these relationships or negotiate sufficient
contractual terms could have a material adverse effect on CESH as the surviving
corporation.

ATIO may not be able to grow the business as planned if it does not maintain
successful relationships with its reseller partners and continue to recruit and
train additional resellers.

   Our ability to achieve revenue growth in the future will depend in part on
our success in maintaining successful relationships with ATIO's existing
resellers and in recruiting, training and retaining additional resellers. ATIO
relies primarily on resellers to market and support its products. ATIO is still
developing and refining its reseller distribution network. We may be unable to
attract additional resellers with the expertise that will be able to market our
products effectively and that will be qualified to provide timely and cost-
effective customer support and service. The loss of specific larger resellers
or a significant number of resellers could materially adversely affect our
business, financial condition or results of operations.

A decline in market acceptance for Microsoft corporation technologies on which
ATIO's products rely could have a material adverse effect on the surviving
corporation.

   CyberCall currently runs only on Microsoft Windows NT servers. ATIO's
products use other Microsoft technologies, including Microsoft SQL Server. A
decline in market acceptance for Microsoft technologies or the increased
acceptance of other server technologies could cause us to incur significant
development costs and could have a material adverse effect on our ability to
market ATIO's current products. Although we believe that Microsoft technologies
will continue to be widely used by businesses, we cannot assure you that
businesses will adopt these technologies as anticipated or will not in the
future migrate to other computing technologies that ATIO does not currently
support. In addition, our products and technologies must continue to be
compatible with new developments in Microsoft technologies.

Our future business prospects depend in part on our ability to maintain and
improve ATIO's current products and develop new products.

   We believe that our future business prospects depend in large part on our
ability to maintain and improve ATIO's current products and to develop new
products on a timely basis. Our products will have to achieve market
acceptance, maintain technological competitiveness and meet an expanding range
of end-user customer requirements. As a result of the complexities inherent in
ATIO's products, major new products and product enhancements require long
development and testing periods. We may not be successful in developing and

                                       33
<PAGE>

marketing, on a timely and cost effective basis, product enhancements or new
products that respond to technological change, evolving industry standards or
end-user customer requirements. We may also experience difficulties that could
delay or prevent the successful development, introduction or marketing of
product enhancements, and our new products and product enhancements may not
achieve market acceptance. Significant delays in the general availability of
new releases of products or significant problems in the installation or
implementation of new releases of products could have a material adverse effect
on our business, financial condition or results of operations.

Dialogic Corporation may become unwilling or unable to continue to manufacture
and supply us with voice processing boards, requiring us to introduce a
substitute supplier which could prove difficult or costly.

   Dialogic Corporation is currently ATIO's only supplier of the voice
processing boards that are necessary for the operation of CyberCall. If
Dialogic Corporation becomes unable or unwilling to continue to manufacture and
supply these voice processing boards in the volume, price and technical
specifications we require, then we would have to adapt our products to a
substitute supplier. Introducing a new supplier of voice processing boards
could result in unforeseen additional product development or customization
costs and could also introduce hardware and software operating or compatibility
problems. These problems could affect product shipments, be costly to correct
or damage our reputation in the markets in which we operate, and could have a
material adverse affect on our business, financial condition or results of
operations.

   Intel Corporation recently acquired Dialogic Corporation. While Intel
Corporation does not currently offer a product that competes with CyberCall,
Intel Corporation could potentially develop a competitive or superior product
or attempt to affect our current relationship with Intel-Dialogic Corporation.

   Intel-Dialogic Corporation's CT Media could incorporate into future releases
some of the functionality that CyberCall provides and consequently could make
it easier for competitors or potential competitors to provide products
competitive with ours. If CT Media does not earn wide spread market acceptance
as an industry standard, the CyberCall architecture may face significant
rework.

ATIO may pursue acquisitions that by their nature present risks and that may
not be successful.

   In the future we may pursue acquisitions to diversify our product offerings
and customer base or for other strategic purposes. ATIO has no prior history of
making acquisitions and we cannot assure you that any future acquisitions will
be successful. The following are some of the risks associated with acquisitions
that could have a material adverse effect on our business, financial condition
or results of operations:

  . We cannot ensure that any acquired businesses will achieve anticipated
    revenues, earnings or cash flow.

  . We may be unable to integrate acquired businesses successfully and
    realize anticipated economic, operational and other benefits in a timely
    manner. If we are unable to integrate acquired businesses successfully,
    we could incur substantial costs and delays or other operational,
    technical or financial problems.

  . Acquisitions could disrupt our ongoing business, distract management,
    divert resources and make it difficult to maintain our current business
    standards, controls and procedures.

  . We may finance future acquisitions by issuing common stock for some or
    all of the purchase price. This could dilute the ownership interests of
    our stockholders. We may also incur additional debt or be required to
    recognize amortization expense related to goodwill and other intangible
    assets purchased in future acquisitions.

  . We would be competing with other firms, many of which have greater
    financial and other resources, to acquire attractive companies. We
    believe this competition will increase, making it more difficult to
    acquire suitable companies on acceptable terms.

                                       34
<PAGE>

ATIO's products could have defects for which we are potentially liable and
which could result in loss of revenue, increased costs or loss of our
credibility or delay in acceptance of our products in the market.

   ATIO's products as well as new products developed after the merger,
including components supplied by others, may contain errors or defects,
especially when first introduced or when new versions are released. Errors in
new products or releases could be found after commencement of commercial
shipments, and this could result in additional development costs, diversion of
technical and other resources from our other development efforts, or the loss
of credibility with current or future end-user customers. This could result in
a loss of revenue or delay in market acceptance of the products, which could
have a material adverse effect upon our business, financial condition or
results of operations.

   ATIO's license agreements with our end-user customers typically contain
provisions designed to limit its exposure to potential product liability and
some contract claims. However, not all of these agreements contain these types
of provisions and, where present, these provisions vary as to their terms and
may not be effective under the laws of some jurisdictions. A product liability,
warranty, or other claim brought against us could have a material adverse
effect on our business, financial condition and results of operations.

We may not be able to obtain adequate financing.

   Successful implementation of our growth strategy after the merger will
likely require continued access to capital. If the Company does not generate
sufficient cash from operations, growth could be limited unless we are able to
obtain capital through additional debt or equity financings. We cannot assure
you that debt or equity financings will be available as required for
acquisitions or other needs. Even if financing is available, it may not be on
terms that are favorable to the Company or sufficient for its needs. If we are
unable to obtain sufficient financing, we may be unable to fully implement our
growth strategy after the merger.

All liabilities of ATIO will become liabilities of the Company after the
merger.

   After the merger, ATIO will cease to exist as a separate entity. All assets
and liabilities of ATIO will become assets and liabilities of CESH. To the
extent there are undisclosed liabilities, or to the extent we have
underestimated the extent of the liabilities of ATIO, the Company's ability to
be successful after the merger would be impaired.

Your percentage of ownership in CESH will be decreased.

   Assuming the exercise of all options that will be vested within 60 days of
the date of the merger, 218,750 shares are sold in the private placement, and
Atio International has purchased an additional 314,062 shares, there will be
3,057,049 shares outstanding after the merger. Of this number, all CESH shares
and options issued or granted prior to the merger will account for
approximately 40.7%. This percentage will decrease as additional shares are
issued upon the exercise of options and other purchase rights.

                         CE SOFTWARE AFTER THE SPIN-OFF

   As part of the Agreement and Plan of Merger, the shares of CE Software will
be distributed by CESH to its shareholders in a transaction we are calling the
"spin-off." From and after the effective time of the merger, you will become a
shareholder of CE Software. For each share of CESH common stock owned by you on
that date, you will receive one share of common stock of CE Software.

   There is no public market for the CE Software common stock. You should be
aware that shares of CE Software will not be listed on any share exchange or on
either the Nasdaq SmallCap Market or the Nasdaq National Market. We anticipate
that after the merger shares of CE Software will be traded on the OTC Bulletin
Board. There will be no established market for the shares and we cannot make
any representation to you regarding the possible value of the shares. There
have been no recent sales of unregistered securities of CE Software.

                                       35
<PAGE>

   In its capacity as sole shareholder, CESH, through action of its board of
directors, has amended the Articles of Incorporation of CE Software to provide
for indemnification of directors and to increase the authorized number of
shares to an amount in excess of that necessary to complete the distribution of
CE Software stock.

   CESH will treat the spin-off of CE Software as a distribution of property to
its shareholders. In doing so, CESH will contribute capital equivalent to the
total of all sums currently owed by CE Software to CESH (approximately
$1,200,000). CE Software will retain all of its property, including the 21,000
square foot office and warehouse structure in West Des Moines, Iowa, purchased
hardware and other physical assets, and all of its software products and other
intellectual property.

   The Company's Annual Report to Stockholders on Form 10-KSB for the fiscal
year ending September 30, 1999 is included with this disclosure statement. All
information therein (as well as information in the Company's quarterly report
on Form 10-QSB for the fiscal quarter ended December 31, 1999) is incorporated
in this disclosure statement by reference. You should carefully review this
report for further information about the business of CE Software and its
historical operations. You should also review carefully the pro forma financial
information contained in the disclosure statement for further information
regarding the effect of the spin-off on the business of CE Software and its
ability to continue operations as a separate company.

   Since the date of the annual report, CE Software has experienced a minor
problem with one of its products relating to year 2000 function. A certain date
stamping option produced a current date of February 20, 1939. A free patch that
addressed the problem was made available for download from the Company Web
site. The Company is not aware of any damage caused to any customer by the
problem.

   All expenses of the spin-off will be borne by CESH.

         DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS, AND CONTROL PERSONS

   CESH is the sole shareholder of CE Software. In its capacity as sole
shareholder, it has elected John S. Kirk, Richard A. Skeie and Donald M. Brown
to serve as members of the board of directors of CE Software to take office at
the time of the spin-off and to serve until the next annual meeting of CE
Software stockholders to be held in 2001. These board members were selected at
the CESH board meeting of January 10, 2000. John S. Kirk also serves as
president of CE Software, having been appointed to the position at the October
6, 1999, CESH board meeting. Brief biographies for Mr. Skeie and Mr. Kirk can
be found under the section title "Nominees for Election as Directors" within
this disclosure statement. A brief biography of Mr. Brown follows:

   Donald M. Brown, 40, was a director of CE Software until 1993. He was a
programmer and employee of CE Software from its inception until March 1998. He
is currently a programmer with Prairie Group, Inc., a company indirectly owned
by John S. Kirk. Mr. Brown has been known as an early creator of adventure
games for the Apple II, including the classic "Wonderful World of Eamon" while
he was still in college at Drake University. After joining CE Software, he
enhanced the game and it became a seven-part adventure series known as
"SwordThrust." Mr. Brown has been programming the Macintosh since its release
in 1984. He has written a wide variety of utilities and applications, including
CalendarMaker, the original version of QuicKeys and portions of the original
QuickMail. His most current program is QuickConference for Windows and
Macintosh.

             MARKET PRICE AND DIVIDENDS ON CE SOFTWARE COMMON STOCK

   There is no established market for CE Software securities.

   CE Software has not declared any dividends since its incorporation in 1987.
There are no dividend restrictions that limit the Company's ability to pay
dividends on its common stock in its Articles of Incorporation or Bylaws. CE
Software's governing statute, Chapter 490 of the Iowa Code, does provide

                                       36
<PAGE>

limitations on CE Software's ability to declare dividends. Section 490.640.3 of
the Iowa Code prohibits CE Software from declaring dividends where, after
giving effect to the distribution, either of the following would result:

     a. The corporation would not be able to pay its debts as they become due
  in the usual course of business.

     b. The corporation's total assets would be less than the sum of its
  total liabilities plus, unless the articles of incorporation permit
  otherwise, the amount that would be needed, if the corporation were to be
  dissolved at the time of the distribution, to satisfy the preferential
  rights upon dissolution of shareholders whose preferential rights are
  superior to those receiving the distribution.

                               LEGAL PROCEEDINGS

   There are no legal proceedings pending or threatened against CE Software or
CESH.

            INDEMNIFICATION OF DIRECTORS AND OFFICERS OF CE SOFTWARE
                                 UNDER IOWA LAW

   Officers, directors, employees, and agents of CE Software may be indemnified
as provided under Sections 490.851-490.858 of the Iowa Business Corporations
Act. Under the Iowa Act, a corporation may generally indemnify an individual
made a party to a proceeding because the individual is or was an officer,
director, employee or agent against liability incurred in the proceeding if:

     a. The individual acted in good faith;

     b. The individual reasonably believed:

       (1) In the case of conduct in the individual's official capacity
    with the corporation, that the individual's conduct was in the
    corporation's best interests;

       (2) In all other cases, that the individual's conduct was at least
    not opposed to the corporation's best interests; and

     c. In the case of any criminal proceeding, the individual had no
  reasonable cause to believe the individual's conduct was unlawful.

   A corporation may not indemnify an officer, director, employee or agent
under the Iowa Act in connection with a proceeding in which the officer,
director, employee or agent was adjudged liable to the corporation or in
connection with a proceeding in which he or she was adjudged liable to the
corporation on the basis of improper receipt of personal benefit.

   Unless limited by its articles of incorporation, a corporation must
indemnify an officer or director who was wholly successful in the defense of
any proceeding to which the officer or director was a party because of his or
her status as an officer or director of the corporation against reasonable
expenses incurred in connection with the proceeding.

   A corporation may pay for or reimburse the reasonable expenses incurred by
an officer, director, employee or agent who is a party to a proceeding in
advance of final disposition of the proceeding if such person furnishes the
corporation a written affirmation of good faith belief that he or she has met
the standard of conduct described in the Iowa Act and furnishes the corporation
a written undertaking to repay the advance if it is ultimately determined that
the officer, director, employee or agent did not meet that standard of conduct
and the facts then known would not preclude indemnification.

         RISK FACTORS RELATED TO THE DISTRIBUTION OF CE SOFTWARE STOCK

Absence of History as an Independent Company.

   CE Software does not have an operating history as an independent company.
Accordingly, the historical financial information included herein may not
necessarily reflect the results of operations and financial position

                                       37
<PAGE>

had CE Software been operated independently of CESH during the periods
presented. In addition, the financial information does not reflect changes that
may occur in the operations of CE Software as a result of the distribution of
CE Software stock.

Absence of CESH or Other Sources of Financial Support.

   From time to time, the capital requirements of CE Software in excess of its
internally generated funds have been provided by CESH. For the year ended
September 30, 1999, exclusive of non-recurring gains, CESH provided cash to CE
Software in the amount of $1,127,370. For the year ended September 30, 1998, CE
Software paid CESH a total of $94,995 from operating activities in addition to
funds paid to CESH from certain non-recurring gains. Financial support from
CESH will no longer be available following the distribution of CE Software
stock. CE Software will be responsible for obtaining its own financing and may
experience a higher cost of capital or be unable to obtain the capital
necessary to conduct its operation.

   Successful implementation of any growth strategy after the distribution of
CE Software stock will likely require continued access to capital. If the
company does not generate sufficient cash from operations, growth could be
limited unless it is able to obtain capital through additional debt or equity
financings. We cannot assure you that debt or equity financings will be
available as required for acquisitions or other needs. Even if financing is
available, it may not be on terms that are favorable to CE Software or
sufficient for its needs. If CE Software is unable to obtain sufficient
financing, it may be unable to fully implement its growth strategy after the
distribution of CE Software stock.

Absence of Prior Trading Market for Common Stock.

   We anticipate that, after the merger and the spin-off, shares of CE Software
will be traded on the OTC Bulletin Board. There is no established public market
for the trading of the CE Software common stock. There can be no assurance as
to the prices at which the common stock will trade. Until an orderly market
develops, the prices at which shares trade may fluctuate significantly. Prices
for the shares of common stock will be determined in the marketplace and may be
influenced by many factors, including the ability of CE Software to
successfully conduct business operations as an independent company, the depth
and liquidity of the market for the shares, investor perception of the company
and the industry in which the company participates, and general economic and
market conditions.

Tax Consequences.

   Shareholders will experience a taxable event upon the receipt of CE Software
shares in the spin-off. The value of a share of CE Software common stock will
be the fair market value at the time of the spin-off. See "Certain Material
Federal Income Tax Matters" for further discussion on this point.

History of Operating Losses.

   CE Software has generated operating losses for the past six years (exclusive
of non-recurring gains). There can be no such assurances that such losses will
not continue after the spin-off or that CE Software will ever generate a profit
after the spin-off. A number of factors have affected CE Software's operating
losses, including changes in the markets for its products. We have no reason to
believe that the company will become profitable without some change in its
product line.

CE Software is dependent on the services of its technical staff and of John S.
Kirk, its CEO, and would be adversely affected if Mr. Kirk and such staff were
no longer available.

   The success of CE Software as an independent company will be dependent in
part upon its ability to attract and retain key management and technical staff.
Such individuals are in high demand and are often subject to competing offers.
There can be no assurance that CE Software will be able to attract and retain
the qualified personnel needed for its business or that such personnel will be
available locally.

                                       38
<PAGE>

   In addition, CE Software's future success will depend on its ability to
retain the services of John S. Kirk, Richard A. Skeie and Donald M. Brown, its
founders and elected directors. The loss by CE Software of the services of
these individuals would have a material adverse effect on CE Software.

The market for the products of CE Software is changing rapidly.

   The computer industry is characterized by rapid technological advances,
changes in customer requirements, and frequent new product introductions and
enhancements. The success of CE Software's products in the market has been
dramatically affected by the emergence of free e-mail from a variety of
sources. The company's future success will depend upon its ability to adapt and
enhance its current products and to develop and introduce new products that
keep pace with technological developments, respond to evolving customer
requirements, and achieve market acceptance. The failure by CE Software to
anticipate or respond adequately to technological developments and customer
requirements, or any significant delays in product development or introduction,
could result in continued operating losses. There can be no assurance that the
company will be successful in developing and marketing new products or product
enhancements on a timely basis or that the company will not experience
significant delays in the future which could have a material adverse effect on
its results of operations. In addition, there can be no assurance that new
products or product enhancements developed by CE Software will achieve market
acceptance.

CE Software will rely primarily on trade-secret, trademark and copyright
protection, and we cannot assure you that a competitor would not copy its
software.

   CE Software's success after the spin-off may depend in part on its ability
to preserve its trade secrets, trademarks and copyrights and to operate without
infringing the proprietary rights of third parties. The company may lack the
financial and legal resources to effectively pursue infringers of its
intellectual property rights. Moreover, CE Software cannot be certain that its
products will not infringe upon proprietary rights held by others, and in the
event there are patent infringement suits by other companies, any litigation
could result in substantial cost to, and diversion of effort by, CE Software.

CE Software's markets are characterized by rapid technological change which may
cause us to incur significant development costs and prevent it from attracting
new customers.

   The market for any software product is characterized by rapid technological
change, frequent new product introductions and enhancements, uncertain product
life cycles and changing end-user customer demands. The introduction of
products embodying new technologies, the introduction of new operating systems,
and the emergence of new industry standards could render any new product
developed by CE Software obsolete or unmarketable and cause the company to
incur significant development costs.

CE Software's future business prospects depend in part on its ability to
maintain and improve CE Software's current products and develop new products.

   We believe that CE Software's future business prospects will depend in large
part on its ability to maintain and improve CE Software's current products and
to develop new products on a timely basis. New products will have to achieve
market acceptance, maintain technological competitiveness and meet an expanding
range of customer requirements. As a result of the complexities inherent in
software products, major new products and product enhancements may require long
development and testing periods. CE Software may not be successful in
developing and marketing, on a timely and cost effective basis, product
enhancements or new products that respond to technological change, evolving
industry standards or customer requirements. The company may also experience
difficulties that could delay or prevent the successful development,
introduction or marketing of product enhancements, and new products and product
enhancements may not achieve market acceptance. Significant delays in the
general availability of new releases of products or significant problems in the
installation or implementation of new releases of products could have a
material adverse effect on CE Software's business, financial condition or
results of operations.

                                       39
<PAGE>

CE Software's products could have defects for which it could be liable and
which could result in loss of revenue, increased costs or loss of its
credibility or delay in acceptance of its products in the market.

     CE Software's products as well as new products developed after the spin-
  off, including components supplied by others, may contain errors or
  defects, especially when first introduced or when new versions are
  released. Errors in new products or releases could be found after
  commencement of commercial shipments, and this could result in additional
  development costs, diversion of technical and other resources from
  development efforts, or the loss of credibility with current or future
  customers. This could result in a loss of revenue or delay in market
  acceptance of the products, which could have a material adverse effect upon
  CE Software's business, financial condition or results of operations.

Incorporation by Reference.

     Information in the CESH Annual Report to Stockholders on Form 10-KSB for
  the fiscal year ending September 30, 1999 and its Quarterly Report on Form
  10-QSB for the quarter ended December 31, 1999 relate to the operations and
  risks associated with the operations of CE Software. All such information
  is incorporated in this discussion by reference. We urge you to carefully
  review these reports for further information about the risks associated
  with the business and operations of CE Software.

                     DESCRIPTION OF CE SOFTWARE SECURITIES

   CE Software's authorized capital consists of 10,000,000 common shares par
value $.10, of which 1,000 are issued and outstanding as of March 1, 2000. All
outstanding shares of common stock of CE Software are currently held by CESH.
Holders of common stock have the right to cast one vote for each share held of
record on all matters submitted to a vote of holders of common stock, including
the election of directors. There is no right to cumulate votes for the election
of directors. Stockholders holding a majority of the voting power of the
capital stock issued and outstanding and entitled to vote, represented in
person or by proxy, are necessary to constitute a quorum at any meeting of CE
Software's stockholders, and the vote by the holders of a majority of such
outstanding shares is required to effect certain fundamental corporate changes
such as liquidation, merger or amendment of CE Software's Articles of
Incorporation. Holders of common stock are entitled to receive dividends pro
rata based on the number of shares held, when, as and if declared by the board
of directors, from funds legally available therefor, subject to the rights of
holders of any outstanding preferred stock. In the event of the liquidation,
dissolution or winding up of the affairs of CE Software, all assets and funds
of CE Software remaining after the payment of all debts and other liabilities
shall be distributed, pro rata, among the holders of the common stock. Holders
of common stock are not entitled to pre-emptive or subscription or conversion
rights, and there are no redemption or sinking fund provisions applicable to
the common stock. CE Software does not have any outstanding options or warrants
to purchase the securities of CE Software. CE Software may in the future
establish an incentive stock option plan for its directors, officers, employees
and consultants.

                   TERMS OF THE AGREEMENT AND PLAN OF MERGER

   The terms and conditions of the proposed merger and distribution of CE
Software stock are contained in the Agreement and Plan of Merger, which is
included as Appendix A to this disclosure statement. The following is a summary
of the material terms of the merger. You should read the actual provisions of
the Agreement and Plan of Merger by referring to Appendix A.

General

   At the time of the merger ATIO will merge with and into the Company, the
separate existence of ATIO will cease and the Company will continue as the
surviving corporation. The Certificate of Incorporation and bylaws of the
Company in effect at the time of the merger shall be the Certificate of
Incorporation and bylaws of the surviving corporation. The merger will become
effective as of the later of the date of the filing of a

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<PAGE>

Certificate of Merger with the Secretary of State of the State of Delaware and
the date of the filing of the Articles of Merger with the Secretary of State of
the State of Minnesota. The Certificate of Merger and the Articles of Merger
are expected to be filed as soon as practicable after the annual meeting,
subject to approval of the Agreement and Plan of Merger at the annual meeting
and satisfaction or waiver of the terms and conditions of the Agreement and
Plan of Merger.

Directors of the Company after the Merger

   If the shareholders vote to approve the Agreement and Plan of Merger, the
members of our board of directors will be replaced by individuals nominated by
the parties to the agreement and approved by the CESH board of directors. You
should consider carefully the following persons as directors of CESH to serve
following the effective time of the merger.

   Willem Ellis, 40, has been the chief executive officer of ATIO since its
inception. Mr. Ellis established Atio (Pty) in 1986 as a systems engineering
consulting company focused on corporate networks. The company grew from the
early consulting base to become a full-scale telecommunications systems
integrator, with established world-class technology partners. In the early
nineties, Mr. Ellis was responsible for changing the focus of the company to
value added communications products and in 1993, the first software packages
for customer service centers and network management were introduced. Mr. Ellis
established ATIO operations in the U.S. in December 1997. He received a
Bachelors in Engineering from the University of Pretoria, Republic of South
Africa in 1981. Mr. Ellis is a citizen of the Republic of South Africa and is
in the process of obtaining an H-1b visa. Until such a visa is achieved, his
services to ATIO are rendered pursuant to a services agreement between ATIO and
Atio International.

   Thomas Patin, 54, has been a director and a member of the board of Destron
Fearing, Inc. (NASDAQ: DFCO), since September 1998 and executive vice
president/general counsel since December 1999. Mr. Patin is also a consultant
and private investor. Mr. Patin has served as the president and a director of
privately held TR Restaurants of Bloomington, Inc. from 1988 to present. Mr.
Patin also served as general counsel for Gaming Corporation of America from
August 1992 to December 1995. He was formerly a partner in the Minneapolis,
Minnesota law firm of Gray, Plant, Mooty, Mooty & Bennett. In 1977, Mr. Patin
received a JD from William Mitchell College of Law in St. Paul, Minnesota, a
MBA from the University of Michigan in 1971 and a BBA from the University of
Michigan in 1968. Mr. Patin was hired by CESH on December 20, 1999 to serve as
general counsel and is employed on a part-time basis.

   [three others to be named].

Consideration

   At the effective time of the merger, shares of CESH common stock will be
issued to holders of ATIO securities and reserved to be issued upon the
exercise of ATIO warrants and options. CESH will issue 1,044,429 shares of
common stock to complete the merger and Venturian will purchase 148,900 shares
for $6.48 per share. In addition, up to 314,062 additional shares will be
issued to Atio International under its right to purchase additional shares as
described below. CESH will reserve approximately 190,000 shares to be issued
upon exercise of options held by employees of ATIO. The consideration issuable
in the merger will be as follows:

     (a) ATIO Shares. At the time of the merger, each ATIO share will be
  converted into .06444777 share of the Company's common stock. This
  conversion will result in the issuance of approximately 860,000 CESH
  shares. The number of shares of CESH common stock issuable in exchange for
  ATIO shares may be increased pursuant to a formula set forth in the
  Agreement and Plan of Merger if cash and short term investments of the
  Company at the time of the merger total less than $5,000,000, less certain
  adjustments defined in the Agreement and Plan of Merger.

     (b) ATIO Warrants. At the effective time of the merger warrants to
  purchase ATIO shares held by various participants with Convergent will be
  converted into 176,301 shares of the Company's common stock. Certain
  warrants to purchase ATIO shares held by U.S. Bancorp Piper Jaffray, Inc.
  will be converted

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<PAGE>

  into 3,237 shares of the Company's common stock. The number of shares of
  Company common stock issuable in exchange for these warrants is not subject
  to adjustment.

     (c) ATIO Options. Each option to purchase ATIO shares issued pursuant to
  the ATIO stock option plans (not to exceed options to purchase 2,941,502
  ATIO shares in the aggregate) will be assumed by the Company and converted
  into an option to purchase that number of shares of Company common stock
  (approximately 190,000), determined by multiplying the number of ATIO
  shares that are subject to each such option by .06444777, at an exercise
  price per share of Company common stock equal to the exercise price per
  ATIO share that was in effect for such option divided by .06444777. The
  terms, exercisability, vesting schedule, status as an "incentive stock
  option" under Section 422 of the Code (if applicable) or as a nonqualified
  stock option, and all other terms and conditions of each ATIO option that
  is converted into an option to purchase the Company's common stock will, to
  the extent permitted by law, be unchanged and continue in effect after the
  merger. ATIO may allow some individual holders of ATIO options the
  opportunity to reprice the ATIO options prior to the merger if the holder
  waives any accelerated vesting which would otherwise occur upon the merger
  and the holder agrees to a new vesting schedule of 25% every six months
  after the merger.

     (d) Fractional Shares. We will not issue fractional shares of our common
  stock in connection with the merger. The holder of any ATIO shares, options
  or warrants or who would otherwise be entitled to receive a fraction of a
  share will receive cash equal to such fraction multiplied by $6.48.

   Treatment of Stock Options. Certain employees, directors, and executive
officers of CESH and CE Software hold options to purchase our common stock. At
the effective time of the merger, all options granted to such persons under
CESH's 1990 Stock Option Plan, the 1992 Stock Option Plan, and the Nonemployee
Directors Stock Option Plan, except options to purchase 74,000 shares granted
to Thomas Patin in December 1999, will vest and will then be exercisable for a
period of three months after the merger.

   Disposition of our Subsidiaries. In connection with the merger, we will
distribute the stock of CE Software to our stockholders of record immediately
prior to the merger. We will also liquidate our wholly owned subsidiary, CE
Distributing, Inc., which has no material assets or operations.

   ATIO's Representations, Warranties and Covenants. ATIO has made
representations and warranties in the Agreement and Plan of Merger regarding,
among other things:

  . Its organization and good standing;

  . Its capitalization;

  . Its authority to enter into the transaction;

  .Its financial statements;

  . The status of its leases, personal property, tax matters, contracts,
    accounts receivable and accounts payable, related party transactions,
    employees, employee benefits, year 2K compliance, and environmental
    matters;

  . The absence of certain changes in its business since September 30, 1999;

  . Its intellectual property rights;

  . Absence of litigation;

  . Compliance with all applicable laws; and

  . Insurance coverages, warranty, and other claims.

   ATIO has agreed in the Agreement and Plan of Merger that, between the date
of the Agreement and Plan of Merger and the date of the merger, among other
matters, it will:

  . File all required tax returns and pay all required taxes;

  . Not have debt as of the effective time of the merger other than accounts
    payable, accrued expenses and deferred revenue, indebtedness of
    $1,350,000 to Convergent, indebtedness in prescribed amounts to

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<PAGE>

   Venturian and CESH and indebtedness to Atio International and/or Atio
   (Pty) for development team costs for periods after July 31, 1999, and that
   all other debt owed to ATIO stockholders or affiliates of ATIO
   stockholders shall have been converted into ATIO shares; and

  . Use all reasonable efforts to preserve intact its present business
    organization and preserve its regular services to, and maintain its
    significant business relationships with customers, suppliers, and all
    others having business dealings with it in an effort to protect its
    goodwill and ongoing business from being impaired in any material
    respect.

   Our Representations, Warranties and Covenants. We have made representations
and warranties in the Agreement and Plan of Merger regarding, among other
things:

  . Our organization and good standing;

  . Our authority to enter into the transaction;

  . Our capitalization;

  . The accuracy of our public information;

  . The absence of litigation;

  . The absence of certain changes since September 30, 1999; and

  . Our compliance with applicable laws.

   In addition, we have agreed that at the time of the merger, we will have
cash and short term investments totaling $5.0 million, less the sum of the
following deductions:

  (i) One-half (not to exceed $100,000) of the expenses of the merger;

  (ii) All costs paid by us associated with obtaining additional equity;

  (iii) The salary and employee benefits paid by us after the date of the
        Agreement and Plan of Merger to Thomas Patin who has been employed by
        us on a part-time basis since December 20, 1999; and

  (iv) The amount of funds loaned by us to ATIO (currently $1,741,000) plus
       accrued interest thereon.

   At the time of the merger our only liabilities of a character that would be
required to be shown on our balance sheet under generally accepted accounting
principles will be (i) current liabilities pertaining to our normal operation
as a holding company with no business operations except the operations of CE
Software and no employees except Thomas Patin and (ii) the current liabilities
relating to the merger expenses and our efforts to obtain additional
investment.

   If at the time of the merger the amount of our cash and short-term
investments plus the amount of the deductions identified total less than the
$4,000,000, either we or ATIO may terminate the Agreement and Plan of Merger.
If at the time of merger our cash and short term investments plus the amount of
such deductions total less than $5,000,000, there will be an equitable increase
of the number of shares of our common stock issuable to the ATIO stockholders
in the merger and with respect to shares issuable pursuant to ATIO options (but
not with respect to the ATIO warrants) calculated pursuant to the terms of the
agreement. If at the time of the merger the amount of our cash and short term
investments plus such deductions exceeds $5,000,000 we will distribute the
excess to CE Software prior to the distribution of the CE Software shares to
our stockholders.

   At the time of the merger all options under our existing stock option plans,
other than those granted to Mr. Patin, will vest and may be exercised within
three months after the merger. At the time of the merger we will deposit cash
in an amount equal to the maximum amount payable to the Company pursuant to the
exercise of all these fully vested stock options (excluding options with an
exercise price of $20.00 per share or more), to be held in escrow pursuant to
the terms of an escrow agreement. As options are exercised and the Company
receives payment therefor, equivalent funds will be released from escrow to CE
Software. After the expiration of the time for exercise of options, any
remaining funds will be returned to the Company.

   The Agreement and Plan of Merger requires us to use all reasonable efforts
to obtain the resignations of all of or our officers and directors at the time
of the merger and to terminate the employment of all of CESH employees except
Thomas Patin. Employees of CE Software will not be affected by this agreement.

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<PAGE>

   The options for Curtis W. Lack to purchase 5,000 shares and the options for
Thomas Patin to issue 74,000 shares were granted prior to execution of the
Agreement and Plan of Merger. The Agreement and Plan of Merger requires that
we not issue any additional options, warrants, convertible securities or other
rights to purchase or acquire our equity securities except pursuant to our
efforts to raise additional capital in a private placement.

   We have agreed to submit for your approval at the meeting a proposal to
adopt the new Stock Option Plan.

   The Agreement and Plan of Merger provides that we will not initiate,
solicit, knowingly encourage or otherwise knowingly facilitate the making of
any offer from any person other than ATIO (a "Third Party") to acquire us or
all or a material portion of our assets. This restriction applies to any
merger, consolidation, conversion, reorganization or other method of business
combination, sale of assets, or similar transaction, structured to permit a
Third Party to acquire CESH or a material portion of our assets taken as a
whole, or the making of any offer to any Third Party to acquire all or any
material portion of our assets of such Third Party, or to merge or consolidate
with, or reorganize, combine or sell assets to or purchase assets from, or
similar transaction with a Third Party. CESH or its board of directors may,
however, (1) provide information in response to a request therefor by a person
who has made an unsolicited bona fide written acquisition proposal; (2) engage
in any negotiations or discussions with any person who has made an unsolicited
bona fide written acquisition proposal; and (3) recommend such an acquisition
proposal to our shareholders, if our board of directors shall have determined
in good faith that (y) the failure to take such action is reasonably likely to
result in a breach of the board's fiduciary duties under, or otherwise
violate, applicable law, and (z) that such acquisition proposal may be one
which, if accepted by us, is reasonably capable of being consummated, taking
into account all legal, financial, and regulatory aspects of the proposal and
the person making the proposal and which, if consummated, would be reasonably
likely, in the view of our board of directors, to result in a more favorable
transaction than the transaction contemplated by the Agreement and Plan of
Merger, taking into account the long-term prospects and interests of CESH and
its shareholders. We have also agreed to cease and cause to be terminated any
existing activities, discussions or negotiations with any parties conducted
heretofore with respect to any acquisition proposal.

   We have agreed that, for a period of two years after the date of the
Agreement and Plan of Merger, the Company will not, without the prior written
consent of CE Software, solicit the employment of, negotiate employment with,
or hire any of CE Software's employees except in response to a general
advertisement. We will cause CE Software to agree that for a period of two
years after the date of the Agreement and Plan of Merger, it will not, without
the Company's prior written consent, solicit the employment of, negotiate
employment with, or hire any of the Company's employees except in response to
a general advertisement.

   In the Agreement and Plan of Merger we have agreed that we will distribute
the stock of CE Software in a spin-off to our stockholders immediately prior
to the merger and liquidate our wholly owned but inactive subsidiary, CE
Distributing, Inc.

   The Agreement and Plan of Merger requires that we take all action necessary
to convene the meeting of our stockholders to consider and vote upon:

  . The approval and adoption of the Agreement and Plan of Merger, including
    the distribution of CE Software stock of CE Software and the designation
    of new directors for CESH to serve after the merger;

  . The approval of the New Stock Option Plan, and

  . Any other matters required to be approved by our stockholders for
    consummation of the merger.

   The Agreement and Plan of Merger requires that our board of directors
recommend such approval, and that we take all reasonable lawful action to
solicit such approval by our stockholders.

   Our Indemnification Obligation. The Agreement and Plan of Merger provides
that, after the merger, the Company must indemnify, defend and hold harmless
the present and former officers and directors of ATIO

                                      44
<PAGE>

against all losses, expenses, (including reasonable attorney fees) claims,
damages, liabilities, costs, judgments, amounts that are paid in settlement
with our approval and arising out of actions or omissions occurring at or prior
to the merger (including, without limitation, the transactions contemplated by
the Agreement and Plan of Merger) to the full extent permitted or required by
ATIO's Articles of Incorporation and bylaws. The Company must also advance
expenses incurred to the fullest extent permitted under ATIO's Articles of
Incorporation and bylaws, provided that the person to whom expenses are
advanced provides the undertaking to repay such advances if and as contemplated
by applicable law or such articles of incorporation and bylaws.

   Pre-Merger Restructuring. The Agreement and Plan of Merger contains a number
of requirements relating to the restructuring of ATIO prior to the merger,
including those described below.

   An agreement among ATIO, Venturian, ATIO (Pty), ATIO International and Ilan
Sharon is to be terminated. The agreement may be replaced with an agreement
that, in our sole discretion, will not have an adverse effect on the operations
of ATIO or the surviving corporation.

   All agreements to which ATIO and any stockholder of ATIO or any affiliate of
any stockholder (including ATIO (Pty)) are parties are to be modified as
required by us or terminated. A services agreement between ATIO International
and ATIO is to be modified to eliminate all cancellation or termination
payments or similar obligations of ATIO, ATIO International, or Willem Ellis.

   Convergent and ATIO are required by the Agreement and Plan of Merger to
enter into an agreement, satisfactory in all respects to us, modifying the
terms of a loan agreement between them, pursuant to which Convergent loaned
$1,350,000 to ATIO, as follows:

  . Extend the maturity date of the loan to June 30, 2001, or if at least
    $2,500,000 of new cash funds have not been obtained by CESH from
    Venturian and/or ATIO by May 31, 2000 to extend the maturity date of the
    loan to January 1, 2002;

  . Reduce the interest rate to 9% per annum, payable monthly;

  . Allow conversion of the debt to registered common stock of the Company at
    $8.00 per share through the maturity date of the loan;

  . Continue the existing security agreement pursuant to which Convergent has
    a first security interest in the intellectual property of ATIO, on a pari
    passu basis with the loans made to ATIO by CESH and by Venturian; and

  . Convert the existing warrants to purchase ATIO common stock into 176,301
    shares of CESH common stock.

   Adoption of New Stock Option Plan. The Agreement and Plan of Merger requires
that we adopt a new employee and director stock option plan ("New Stock Option
Plan") covering no more than 750,000 shares of common stock of the Company as
the surviving corporation. The New Stock Option Plan has been approved by our
Board of Directors and is being submitted to you for approval at the meeting.
The New Stock Option Plan:

  . Provides for administration by a committee of at least two non-management
    directors;

  . Limits the total number of options grantable by the surviving corporation
    to 25% of the outstanding and issued stock of the surviving corporation;

  . Provides incentives to both current and future management and key
    employees of the surviving corporation; and

  . Encourages long-term employment, with rewards tied to the success of the
    surviving corporation as measured by the trading price of its shares.
    These requirements terminate one year after the merger.

  . The 25% limit does not include any options previously granted by us and
    not exercised prior to the merger but does include ATIO options granted
    under ATIO's stock option plans.

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<PAGE>

   New Investment by Venturian. At the time of the merger Venturian is required
to purchase 148,900 shares of our common stock at a price of $6.48 per share.
Venturian may choose to pay for the shares either in cash or in exchange for
indebtedness, including accrued interest, of ATIO to Venturian. As collateral
for this obligation, Venturian has entered into a pledge agreement with CESH.
In the pledge agreement Venturian has pledged 2,300,000 shares of common stock
of ATIO. If Venturian fails to purchase our common stock, our sole remedy will
be to withhold shares of our common stock that would otherwise have been issued
to Venturian as part of the merger.

   New Investment by ATIO International. At the time of the merger ATIO
International is required to purchase 314,062 newly issued shares of CESH
common stock at a price of $6.48 per share for an aggregate purchase price of
$2,035,122. ATIO International may satisfy its obligation to purchase such
common stock as follows:

  . Payment in cash;

  . Exchange for indebtedness (including accrued interest) of ATIO to ATIO
    International;

  . Delivery of an irrevocable letter of credit acceptable to us, providing
    for payment no later than May 31, 2000; or

  . Forfeiture of shares of CESH common stock to be pledged as security for
    payment of this obligation.

   The number of shares of our common stock to be so pledged would be
determined by dividing the difference between the amount provided by ATIO
International to us at the time of the merger and $2,035,122 by $6.48. If the
Company has not received the full $2,035,122 on or before May 31, 2000, the
pledged shares will be forfeited and returned to the surviving corporation and
canceled. We would then have no other recourse against ATIO International.

   Loans to ATIO. In anticipation of the execution of the Agreement and Plan of
Merger Atio (Pty) and Atio International loaned ATIO funds for continued
development work since July 31, 1999, at a rate of approximately $50,000 to
$60,000 per month. ATIO is indebted to Atio International for these amounts.
They will continue to extend loans at the same rate for development work on the
CyberCall products until the merger. Venturian has made loans to ATIO in the
principal amounts of $100,000 and $50,000 under the terms of a loan agreement
dated October 28, 1999, and may make additional loans to ATIO before the
merger. We have made loans to ATIO in the total principal amount of $1,741,000
under the terms of a loan agreement and notes and security agreements. We
anticipate making additional loans to ATIO before the merger. The loans by Atio
(Pty) and Atio International are to be credited against the commitment of Atio
International to purchase 314,062 shares. The principal and accrued interest of
such loans are to be exchanged for our common stock immediately after the
merger. All Venturian loans are to be credited against Venturian's commitment
to make the additional investment as described above. The principal and accrued
interest of such Venturian loans are to be exchanged for our common stock
immediately after the merger. All loans made by us to ATIO and accrued interest
on such loans are to be credited against our $5,000,000 targeted amount of cash
and short term investments at the time of the merger. If the merger is not
completed for any reason, ATIO will be obligated to repay the loans in
accordance with their terms.

   Restrictions on ATIO Solicitation of other Transactions. ATIO has agreed it
will not initiate, solicit, knowingly encourage, or otherwise knowingly
facilitate the making of any offer, from any person other than us to:

  . Purchase its stock, or loan funds to ATIO, or

  . Acquire ATIO or all or a material portion of the assets of ATIO or its
    subsidiaries by a merger, consolidation, conversion, reorganization, or
    other method of business combination, sale or similar transaction.

  . This agreement includes any single or multi-step transaction or series of
    related transactions, which is structured to permit a third party to
    acquire ATIO or the assets of ATIO and its subsidiaries. ATIO has

                                       46
<PAGE>

   also agreed that it will not engage in any negotiations concerning, or
   provide any confidential information or data to, or have any discussions
   with, any person relating to such a proposal, or otherwise knowingly
   facilitate any attempt to make or implement such a Proposal.

   Solicitation of Private Investment. After conferring with ATIO, we may at
any time before the merger solicit and receive subscriptions for investments in
our securities. Such securities would be issued as soon as possible after the
merger. The securities may include, without limitation, common stock, warrants
to purchase common stock, preferred stock (issuable only upon amendment of our
certificate of incorporation to authorize preferred stock) or convertible debt,
with or without warrants. The total of these subscriptions may not exceed
$5,000,000 (exclusive of the exercise of any related warrants).

   Other Agreements. Before the merger, ATIO must:

  . Develop a plan for the immigration of key personnel and its development
    team from the Republic of South Africa to the United States;

  . Establish its exclusive title to all proprietary rights used or useable
    in its business;

  . Change its name;

  . Attempt to obtain "lockup" agreements relating to the stock issued to
    certain key personnel pursuant to the merger;

  . Attempt to obtain employment agreements assuring that William Ellis, Mark
    Chodos, Bouwe Hamersma and John Webb will continue to work for CESH as
    the surviving corporation; and

  . Assure the prompt availability of the most current and correct source
    code relating to its intellectual property.

   Conditions to Our Obligation to Merge. Our obligation to complete the
transactions contemplated by the Agreement and Plan of Merger is subject to the
fulfillment of certain conditions, including the following:

  . Approval by our stockholders;

  . The accuracy of the representations and warranties of ATIO and the ATIO
    stockholders;

  . The performance by ATIO, Atio (Pty), Convergent and the ATIO stockholders
    of all of the covenants and agreements to be performed and satisfied by
    it or them;

  . The absence of any material adverse change in the financial condition,
    prospects, properties, assets, liabilities, business or operations of
    ATIO since the date of the Agreement and Plan of Merger;

  . The delivery to us of certain certificates and legal opinions;

  . The absence of certain litigation;

  . The receipt of necessary governmental and other consents;

  . Reasonable assurance that at the time of the merger, we will have or
    shall have received $5,000,000 (including all amounts loaned to ATIO),
    subject to certain adjustments, plus

     .  $964,872 from Venturian; plus

     .  $50,000 to $60,000 per month from Atio International and Atio (Pty)
        in funding of certain expenses as described above; plus

     .  A minimum of $1.5 million from a private offering of our
        securities;

     .  All in the aggregate amount of not less than $7,500,000.

   Conditions to ATIO's Obligation to Merge. ATIO's obligation to consummate
the merger and the transactions contemplated by the Agreement and Plan of
Merger is subject to the fulfillment of certain conditions, including the
following:

  . Approval by our stockholders;

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<PAGE>

  . The accuracy of our representations and warranties;

  . Our performance of all covenants and agreements to be performed by us
    prior to the merger;

  . The receipt of certain certificates and legal opinions; and

  . The execution by us of an escrow agreement as described in the Agreement
    and Plan of Merger with respect to certain funds relating to the exercise
    of our options.

Indemnification by ATIO and ATIO stockholders. All material representations and
warranties in the Agreement and Plan of Merger are to survive for one year
after the merger. ATIO before the merger, and each stockholder of ATIO after
the merger, severally and not jointly, are obligated to indemnify and hold CESH
harmless from and against all losses and expenses of attorneys, accountants and
consultants of any kind or nature based upon certain breaches of representation
or warranty set forth in the Agreement and Plan of Merger. No stockholder will
have any obligation to indemnify with respect to a loss to the extent the loss
shall have been caused by a breach by any other stockholder.

   We will not be entitled to indemnification unless the cumulative amount of
all losses exceeds $75,000. Subject to certain exceptions, no ATIO stockholder
will be obligated to indemnify us more than the value of all shares of our
common stock received in the merger. With respect to any individual
stockholders, our sole recourse will be to proceed against our common stock
acquired by such individual stockholder in the merger. For such purposes, each
share of our common stock will be deemed to have a value of $6.48.

   Subject to certain exceptions, we cannot make a claim for indemnification
unless we have given written notice of it before the 12-month anniversary of
the merger.

   The foregoing limitations do not apply with respect to losses caused by
fraud or intentional misrepresentation on the part of a party, or the breach by
ATIO of any representation regarding the number of shares of ATIO stock
outstanding or subject to any right to purchase, or to losses caused by fraud
or intentional misrepresentation on the part of a specific stockholder or the
breach by a specific stockholder of such stockholder's representations
regarding title to the ATIO shares, investment intent, and other specified
matters. Recourse for stockholder misrepresentation may only be against the
stockholder responsible for the loss.

   Our Obligation to Indemnify. We have agreed to indemnify and hold harmless
ATIO stockholders from and against losses incurred by them arising out of or
based upon any breach or inaccuracy of any representation or warranty made by
us, provided, however that no indemnification shall be required hereunder
except to the extent the cumulative amount of all stockholder losses exceeds
$75,000.

   Indemnification of Directors and Officers. The Company as the surviving
corporation is obligated to indemnify, defend, and hold harmless each person
who is, has been, or becomes before the merger, an officer or director of the
Company or the surviving corporation against all losses relating to the
Agreement and Plan of Merger. This obligation includes reasonable attorney's
fees and expenses and amounts paid in settlement. Any such loss must have
arisen out of actions or omissions occurring at or before the merger and must
be based on the fact that such person is or was a director or officer.

   Maintenance of Director and Officer Liability Insurance. For a period of six
years after the merger, the Company is required to maintain in effect the
policies of directors' and officers' liability insurance maintained by us;
provided, that the surviving corporation may substitute therefor policies of at
least the same coverage containing terms that are no less advantageous with
respect to matters occurring prior to the merger to the extent such liability
insurance can be maintained annually at a cost to the surviving corporation not
greater than

                                       48
<PAGE>

200% of the current annual premiums for such directors' and officers' liability
insurance. If such insurance cannot be maintained or obtained at such cost, the
Company must maintain as much of such insurance as can be so maintained at a
cost equal to 200% of the current annual premiums of we pay for its directors'
and officers' liability insurance.

   Termination of the Agreement and Plan of Merger. The Agreement and Plan of
Merger may be terminated any time prior to the merger as follows:

  . With the mutual consent of CESH and ATIO;

  . By us, if the merger has not occurred on or before           , 2000;

  . By us if there has been a material misrepresentation or breach of
    warranty or a material breach of covenants on the part of ATIO that has
    not been cured within 30 days after notice thereof;

  . By ATIO if there has been a material misrepresentation or breach of
    warranty in our representations and warranties or a material breach of
    covenants on our part that has not been cured within 30 days after notice
    thereof;

  . By ATIO if CESH has less than $4.25 million in cash and short term
    investments on the closing date; or

  . By either us or ATIO if CESH has less than $4 million in cash and short
    term investments on the closing date.

   Anything in the Agreement and Plan of Merger to the contrary
notwithstanding, if any of the conditions to our obligation to merge have not
been satisfied, we have the right to proceed with the transactions contemplated
by the Agreement and Plan of Merger without waiving any of our rights
thereunder, and if any of the conditions to ATIO's obligation to merge have not
been satisfied, ATIO has the right to proceed with the transactions
contemplated hereby without waiving any of its rights thereunder.

Voting

   Donald M. Brown, holder of record of 110,270 shares, or 9.9% of our common
stock and all current officers and directors of CESH, who hold of record
288,716 shares or 25.9% of our common stock, have agreed in writing not to
exercise their appraisal rights under Delaware Law. All stockholders of ATIO
have waived rights to dissent or appraisal that may otherwise be available to
them under Minnesota Law.

                              ACCOUNTING TREATMENT

   The merger will be treated as a reverse acquisition of CESH (a "shell
company" as a result of the spin-off of its operating subsidiary, CE Software)
by ATIO under the purchase method of accounting. Under this accounting
treatment, ATIO will record the fair value of the tangible assets of CESH and
adjust ATIO's common stock and additional paid in capital to reflect the par
value of CESH's common stock, after giving effect to the number of shares
issued in the business combination. After the closing, financial statements of
the surviving corporation will reflect ATIO's financial condition, results of
operations and cash flows as the operating entity.

   CESH will treat the spin-off of CE Software as a distribution of property to
its shareholders. In doing so, CESH will contribute capital to CE Software
equivalent to the total of all sums currently owed by CE Software to CESH
(approximately $1,200,000).

                  CERTAIN MATERIAL FEDERAL INCOME TAX MATTERS

   The following is a general summary of the material anticipated U.S. Federal
income tax consequences to CESH, ATIO and shareholders of CESH of the merger of
ATIO into and with CESH and the distribution of the stock of CE Software to the
CESH shareholders in the spin-off. The summary is based on current provisions
of

                                       49
<PAGE>

the Internal Revenue Code of 1986, as amended, regulations of the Treasury
Department, administrative rulings and pronouncements of the Internal Revenue
Service, and judicial decisions currently in effect, all of which are subject
to change, possibly with retroactive effect. This summary is based on the
assumption that shares of CESH stock are held as capital assets, as defined in
Code Section 1221, on the date of the merger and distribution. This summary is
not a complete description of all of the tax consequences of the merger and
distribution and does not address all aspects of U.S. Federal income taxation
that might be relevant to a shareholder in light of his, her or its status or
personal investment circumstances. This discussion does not address the U.S.
Federal income tax consequences of the merger to ATIO shareholders or the
merger and distribution to CESH shareholders that are subject to special
treatment under the Federal income tax laws (for example, foreign persons,
financial institutions, dealers in securities, regulated investment companies,
pass through entities, insurance companies, tax-exempt organizations,
individual retirement accounts, holders who acquired their CESH shares pursuant
to the exercise of an employee stock option or right or otherwise as
compensation, or holders who hold CESH stock as part of a "hedge," "straddle"
or "conversion transaction" or who have a "functional currency" other than the
U.S. dollar). In addition, this discussion does not consider the effect of any
foreign, state or local tax laws that may be applicable to the merger and
distribution, or the effects of the alternative minimum tax. No ruling or
opinion has been or will be sought from the IRS or legal or tax counsel
concerning the tax issues addressed herein, and such issues may be subject to
uncertainty resulting from the lack of definitive judicial or administrative
authority and interpretations applicable thereto as well as the highly factual
nature of the issues addressed herein. THEREFORE, ALL CESH SHAREHOLDERS ARE
URGED TO CONSULT WITH THEIR TAX ADVISORS REGARDING THE SPECIFIC TAX
CONSEQUENCES TO THEM OF THE TRANSACTIONS.

Treatment of the Merger

   It is anticipated that (i) the merger should qualify as a tax-free
reorganization pursuant to Code Section 368(a)(1)(A), (ii) CESH and ATIO should
be a party to the reorganization within the meaning of Code Section 368(b) and
(iii) no gain or loss should be recognized by CESH or ATIO as a result of the
merger.

Effect on CESH of the Distribution of CE Software Stock

   CESH believes that the distribution of the stock of CE Software to the
shareholders of CESH in the spin-off will be treated as a taxable transaction.
Accordingly, CESH will be required to recognize gain, if any, equal to the
aggregate fair market value of the shares of CE Software minus the adjusted tax
basis of CESH in such shares. However, CESH anticipates that its adjusted tax
basis in the shares of CE Software will actually exceed the fair market value,
and, therefore, CESH will realize a loss, but such loss will not be recognized
for Federal income tax purposes. The distribution may also trigger the
recognition by CESH of deferred gains and losses pursuant to the intercompany
transaction rules of the consolidated return Treasury Regulations.

Effect on CESH Shareholders of the Distribution of CE Software Stock

 Taxable Dividend Treatment

   CESH believes that the receipt of the stock of CE Software by CESH
shareholders in the spin-off will be treated as a taxable dividend to the CESH
shareholders. Generally, a distribution of property by CESH will be treated as
a taxable dividend to the extent that the fair market value of the distributed
property is from its accumulated earnings and profits or from its earnings and
profits of the taxable year of the distribution. CESH currently anticipates
that it will have sufficient earnings and profits to cause the entire
distribution of CE Software stock to be treated as a taxable dividend.
Accordingly, it is anticipated that each CESH shareholder will be required to
recognize ordinary income (subject to a maximum Federal tax rate of 39.6%)
equal to the fair market value of CE Software stock received in the
distribution. However, CESH shareholders who are corporations taxable under
Subchapter C of the Code may be eligible for the dividends received deduction
of Code Section 243. The aggregate tax basis of the CE Software stock in the
hands of a CESH shareholder should be equal to the aggregate fair market value
of such stock, and the holding period should begin on the day that the CE
Software stock is distributed to the CESH shareholder.

                                       50
<PAGE>

   If sufficient earnings and profits did not exist at the time of the
distribution, the amount of the taxable dividend would be equal to each CESH
stockholder's ratable share of the earnings and profits of CESH. The excess of
the aggregate fair market value of the shares of CE Software received by a
shareholder minus the amount of the distribution treated as a taxable dividend
above would then be treated first as a tax-free return of capital to the extent
of the aggregate tax basis of the shareholder's CESH stock, and any remainder
would be treated as gain from the sale or exchange of the stock. If any amount
of the distribution is treated as a tax-free return of capital, such amount
will be applied against and reduce the shareholder's tax basis of CESH stock.

 Information Reporting and Backup Withholding

   Subject to certain exceptions, CESH anticipates that the distribution of CE
Software stock should be subject to information reporting to the IRS and may be
subject to a 31% backup withholding tax. Backup withholding should not apply,
however, if you have already furnished your taxpayer identification number to
CESH or your brokerage company or otherwise have completed, signed and filed
with CESH or your brokerage company a Form W-9. Any amounts withheld under the
backup withholding rules are not an additional tax and may be refunded or
credited against the holder's Federal income tax liability, provided, that the
holder furnishes the required information to the IRS.

   THIS TAX DISCUSSION IS INCLUDED FOR GENERAL INFORMATION ONLY AND IS BASED
UPON CURRENT LAW. YOU SHOULD CONSULT YOUR OWN TAX ADVISOR AS TO THE SPECIFIC
TAX CONSEQUENCE OF THE AGREEMENT AND PLAN OF MERGER TO YOU, INCLUDING THE
APPLICATION AND EFFECT OF FEDERAL, STATE, LOCAL AND OTHER TAX LAWS AND THE
POSSIBLE EFFECT OF CHANGES IN SUCH TAX LAWS.

AMENDMENT TO CERTIFICATE OF INCORPORATION

   If you vote to approve the Agreement and Plan of Merger, you will also be
voting to approve amendments to the CESH Certificate of Incorporation as
described herein.

   The board has adopted and recommends the following resolution amending the
Certificate of Incorporation. This resolution increases the number of
authorized shares of common stock and reduces the par value of each share. The
principal purpose of this amendment is to authorize a sufficient number of
shares of common stock to complete the merger transactions. The officers will
need to execute such documents as required to effectuate the resolution.

   RESOLVED, that section 4.1 of Article 4 of the Restated Certificate of
Incorporation of the corporation shall be amended to read as follows:

   "ARTICLE 4--CAPITAL STOCK

  4.1 The aggregate number of shares of stock the corporation has authority
  to issue shall be Ten Million (10,000,000) shares, all of which shall be
  classified as Common Stock with a par value of ($.01) per share."

   RESOLVED FURTHER, that the officers of the Corporation are empowered and
authorized to perform any and all acts and execute any and all notices or
documents necessary to effectuate the above resolution.

REGULATORY APPROVALS

   We are not aware of any license, regulatory permit or lease which is
material to our business and which is likely to be adversely affected by the
merger transactions or of any approval or other action by any state, federal or
foreign government or governmental agency that would be required prior to
effecting the merger transactions.

                                       51
<PAGE>

                                  PROPOSAL #3

   TO AUTHORIZE THE ISSUANCE OF A MAXIMUM OF 715,000 SHARES OF COMMON STOCK IN
A PRIVATE OFFERING, AT A PER SHARE PRICE NOT LESS THAN $7.00, PLUS WARRANTS TO
PURCHASE AN EQUAL NUMBER OF ADDITIONAL SHARES OF COMMON STOCK AT AN EXERCISE
PRICE NOT LESS THAN $9.00.

   THE BOARD OF DIRECTORS OF CESH RECOMMENDS THAT YOU VOTE FOR PROPOSAL #3.

   Under the terms of the Agreement and Plan of Merger, the Company is expected
to have the following assets at the effective time of the merger:

  . $5,000,000 in cash or liquid assets, less certain expenses and less the
    aggregate amount of principal and unpaid, accrued interest for all loans
    made by CESH to ATIO prior to the merger;

  . funds from Venturian for the purchase of 148,900 shares of the Company's
    common stock at a price of $6.48 per share, payable, at Venturian's
    option, either in cash or in exchange for indebtedness;

  . $50,000 to $60,000 per month from Atio International; plus

  . a committed amount of net proceeds from a private offering sufficient for
    all of the above to total no less than $7,500,000.

   The board of directors has approved the private offering of a maximum of
715,000 shares of the Company's common stock at a minimum offering price of
$7.00. Each purchaser of shares of common stock sold in the private offering
would receive one warrant for each share purchased. The warrants will be
exercisable for a period of three years for the purchase of one additional
share of the Company's common stock at a minimum exercise price of $9.00 per
share.

   The Company intends to retain a brokerage firm or other financial advisor to
act as its agent in the private offering. We expect that the Company will
compensate such an agent an amount equal to approximately 8% of all funds
received in the private offering. The Company will also be required to pay the
expense of the private offering. We are negotiating with John G. Kinnard &
Company, Inc. to act as the Company's agent in the private offering. The
offering will be limited to persons who are accredited investors as that term
is defined in the Securities Act of 1933. An accredited investor, may include
investors like those listed below:

  . an individual whose net worth, or joint net worth with his or her spouse,
    is $1,000,000;

  . an individual with an annual income over $200,000, or joint income with
    that person's spouse in excess of $300,000;

  . a bank;

  . an insurance company;

  . a pension fund;

  . a corporation, partnership, limited liability company, trust or other
    entity not formed for the purpose of making the investment with assets of
    at least $5 million; or

  . a director or executive officer of the Company.

   You are being asked to approve the issuance of shares and warrants in this
private offering. Within the minimum requirements described above, the terms
and conditions of the private offering will be determined by the board of
directors.


                                       52
<PAGE>

                                  PROPOSAL #4

   TO AMEND THE 1990 STOCK OPTION PLAN, 1992 STOCK OPTION PLAN, AND NONEMPLOYEE
DIRECTORS STOCK OPTION PLAN BY:

      (a) increasing the number of shares reserved to be issued upon exercise
  of options granted under the 1990 Stock Option Plan to 130,000;

      (b) prohibiting the granting of any further options under any of these
  plans; and

      (c) providing that all options granted under any of these plans to
  persons who were directors or employees of either CESH or CE Software
  immediately prior to the effective time of the merger, other than persons
  who will continue as employees of CESH, will be exercisable as of the
  effective time of the merger and for a period of three months thereafter;

   THE BOARD OF DIRECTORS OF CESH RECOMMENDS THAT YOU VOTE FOR PROPOSAL #4.

   The Company has three stock option plans in place as described below. If you
vote in favor of Proposal #4, all options granted under these old stock option
plans, except those held by Thomas Patin, will vest and may be exercised any
time within three months after the merger and no further options could be
granted under any of the plans. Under Proposal #4 you are also being asked to
vote to increase the number of shares reserved to be issued under the 1990
Stock Option Plan to 130,000. This increase is necessary to authorize shares to
be issued upon exercise of options granted to Mr. Patin.

1990 Stock Option Plan

   Under the Company's 1990 Stock Option Plan, options to acquire shares of
common stock have been granted to employees and employee directors.

   The exercise price of the options is 100% of fair market value of the shares
on the date of the grant (110% for incentive stock options granted to a person
holding more than 10% of the voting power of the Company's stock). Upon
exercise, the exercise price may be paid in cash or in common stock of the
Company.

1992 Stock Option Plan

   Under the Company's 1992 Stock Option Plan, options to acquire shares of
common stock have been granted in the form of nonqualified stock options to
employees, including officers and directors who are employees.

   The purchase price per share under any option is 100% of the fair market
value of a share of Company stock on the date of grant. Options may be
exercised by payment of the purchase price in cash, in previously acquired
shares of Company stock, or in some combination thereof.

Nonemployee Directors Stock Option Plan

   Under the Nonemployee Directors Plan, options to acquire up to 20,000 shares
of common stock may be granted in the form of nonqualified stock options to
outside directors. The Nonemployee Directors Plan provides for the automatic
grant of nonqualified stock options to outside directors each year on the date
of the annual meeting of stockholders. Any nonemployee director initially
elected to the board by the stockholders has on that date received options to
purchase 2,400 shares of common stock. Any nonemployee director reelected to
the Board by the Stockholders has that date received options to purchase 500
shares of common stock.

   The purchase price per share under any option is 100% of the fair market
value of a share of Company stock on the date of grant. Options may be
exercised by payment of the purchase price in cash, in previously acquired
shares of Company stock, or in some combination thereof.

                                       53
<PAGE>

Immediate Vesting of Options Previously Granted Under the Plans

   In order to protect all of the participants' rights, all options granted
under the plans, except those granted to Thomas Patin, will become fully
exercisable at the effective time of the merger.

   At December 31, 1999, options to purchase an aggregate of 196,995 shares
were held by 40 persons, at exercise prices of from $2.31 to $46.25 per share.
For further information about the CESH stock option plans, please see our
Annual Report on Form 10-KSB for the fiscal year ended September 30, 1999.

   During 1999, options to purchase 6,200 shares were granted to John S. Kirk.
No options to purchase the Company's common stock were granted during the
fiscal year ended September 30, 1999 to any other person named in the Summary
Compensation Table.

   However, options to purchase 5,000 shares were granted to Curtis W. Lack in
November 1999 and options to purchase 74,000 shares were granted to Thomas
Patin in December 1999. Under the agreement with Mr. Patin, these options will
vest at the rate of 4,000 per month during the first 12 months after the merger
and the balance of the options will vest prorata monthly during the second 12
months.

   The following table provides certain information concerning exercises of
options to purchase the Company's common stock in the fiscal year ended
September 30, 1999, and unexercised options held as of September 30, 1999, by
the persons named in the Summary Compensation Table:

      Aggregate Option Exercises In Fiscal Year Ending September 30, 1999
                       and Fiscal Year-End Option Values

<TABLE>
<CAPTION>
                                                          Number of
                                                         Unexercised     Value of
                                                         Securities     Unexercised
                                                         Underlying    In-The-Money
                                                        Options/SARs   Options/SARs
                                                          at FY-End    at FY-End ($)
                         Shares Acquired Value Realized Exercisable/   Exercisable/
          Name             On Exercise        ($)       Unexercisable  Unexercisable
          ----           --------------- -------------- ------------- ---------------
<S>                      <C>             <C>            <C>           <C>
Christian F. Gurney*....      5,000         $15,313     27,332/7,668  $80,290/$27,460
John S. Kirk............       -0-            -0-        3,166/6,834   $5,540/$16,220
Curtis W. Lack..........       -0-            -0-            -0-            -0-
</TABLE>
- --------
*  Christian F. Gurney exercised options to purchase 5,000 shares in 1999. The
   amount realized represents the cashless exercise of options to purchase
   5,000 shares with an exercise price of $2.4375 per share and a market value
   on the date of exercise of $5.50 per share.

                                  PROPOSAL #5

                      TO ADOPT THE 2000 STOCK OPTION PLAN

   THE BOARD OF DIRECTORS OF CESH RECOMMENDS THAT YOU VOTE FOR PROPOSAL #5.

   Prior to the effective time of the merger, CESH, subject to the approval of
ATIO of the terms thereof, is obligated to adopt a new employee and director
stock option plan covering no more than 750,000 shares of common stock, not
including conversion of any existing ATIO employee stock options. A copy of the
new plan is attached to this disclosure statement as Appendix C. The new stock
option plans are being submitted to you for approval at the meeting. The new
stock option plans:

  . Provide for administration by a committee of at least two non-management
    directors;

                                       54
<PAGE>

  . Limit the total number of options that may be granted to twenty-five per
    cent (25%) of the outstanding and issued stock of CESH after the merger
    (this limit does not include options previously granted by CESH under its
    old options plans but does include options previously granted by ATIO);

  . Provide incentives to management and key employees of CESH after the
    merger; and

  . Encourage long-term employment, with rewards tied to the success of CESH
    as measured by the trading price of CESH's shares.

                           VOTE REQUIRED; RECORD DATE

   A majority of the outstanding shares of our common stock entitled to vote,
represented in person or by proxy, is required for there to be a quorum at the
annual meeting. A quorum is the minimum number of stockholders required to
transact business or take a vote. Under the terms of the Agreement and Plan of
Merger, the affirmative vote of holders of a majority of the outstanding shares
of our common stock entitled to vote at the annual meeting is required to
approve the Agreement and Plan of Merger. The holders of 35.8% of our common
stock, including members of the management group who will continue to own an
equity interest in CESH after the merger, have agreed to vote their shares in
favor of the merger and for adoption of the Agreement and Plan of Merger, and
in favor of any other matter necessary to complete the transactions
contemplated by the Agreement and Plan of Merger. See "Interests of Directors
and Officers in the Merger and Distribution of CE Software Stock that are
Different from Your Interests or Which May Present Conflicts of Interest."

   Except for the recommendation of the board contained in this proxy
statement, to our knowledge after reasonable inquiry, none of our executive
officers, directors or affiliates has made a recommendation in support of or
opposed to the merger, the distribution of CE Software stock or other proposals
presented in this disclosure document.

   Our board of directors has fixed March 10, 2000 as the record date for
determining the CESH stockholders entitled to notice of and to vote at the
annual meeting. Therefore, only stockholders of record at the close of business
on the record date will receive notice of and be able to vote at the annual
meeting. At the close of business on the record date, there were
shares of our common stock outstanding held by       record holders. A majority
of these shares must be present at the annual meeting, either in person or by
proxy, in order to transact business at the meeting. Each share of outstanding
common stock entitles its holder to one vote.

   Stockholders of CESH common stock present in person at the annual meeting
but not voting, and shares for which we have received proxies but with respect
to which holders of these shares have abstained, will be counted as present at
the annual meeting for the purpose of determining whether or not a quorum
exists. Brokers who hold shares in nominee or "street" name for customers who
are the beneficial owners of the shares may not give a proxy to vote shares
held for these customers on the matters to be voted at the annual meeting
without specific instructions from the beneficial owners.

   Broker non-votes will be counted for purposes of determining whether a
quorum exists. In all proposals, except the election of directors and approval
of the Agreement and Plan of Merger, the affirmative vote of the majority of
shares present in person or by proxy will be the act of stockholders.
Abstentions and broker non-votes will have the same effect as a vote against
approval of those proposals. Directors will be elected by a plurality of the
votes of the shares present in person or by proxy. Therefore, we urge you to
complete, date, and sign the accompanying proxy and return it promptly in the
enclosed postage-paid envelope.

   As contemplated by the Agreement and Plan of Merger, you may be entitled to
appraisal rights. See "Appraisal Rights." A copy of the text of Section 262 of
the Delaware General Corporation Law, which governs appraisal rights, is
attached to this disclosure statement as Appendix B.

                                       55
<PAGE>

                        DISSENTERS' RIGHTS TO APPRAISAL

   Under the Delaware General Corporation Law (the "Delaware Law"), if any
holder of record of CESH common stock does not vote in favor of the merger,
such holder has the right to seek an appraisal of, and to be paid the fair
value (exclusive of any element of value arising from the accomplishment or
expectation of the merger) for his, her, or its shares of CESH common stock;
provided that the stockholder complies with the provisions of section 262 of
the Delaware Law.

   Holders of record of shares of CESH common stock who do not vote in favor of
the Agreement and Plan of Merger and who otherwise comply with the applicable
statutory procedures summarized herein will be entitled to appraisal rights
under section 262 of the Delaware Law. A person having a beneficial interest in
shares of CESH common stock held of record in the name of another person, such
as a broker or nominee, must act promptly to cause the record holder to
properly and timely follow the steps summarized below if such person wishes to
perfect appraisal rights. Donald M. Brown and all officers and directors of
CESH have agreed in writing not to exercise appraisal rights.

   THE FOLLOWING DISCUSSION IS NOT A COMPLETE STATEMENT OF THE LAW PERTAINING
TO APPRAISAL RIGHTS UNDER THE DELAWARE LAW AND IS QUALIFIED IN ITS ENTIRETY BY
THE FULL TEXT OF SECTION 262 OF THE DELAWARE LAW WHICH IS REPRINTED IN ITS
ENTIRETY AS APPENDIX B. ALL REFERENCE IN SECTION 262 OF THE DELAWARE LAW AND IN
THIS SUMMARY TO A "STOCKHOLDER" OR "HOLDER" ARE TO THE RECORD HOLDER OF THE
SHARES OF CESH COMMON STOCK AS TO WHICH APPRAISAL RIGHTS ARE ASSERTED.

   Under section 262 of the Delaware Law, a holder of shares of CESH common
stock who follows the procedures set forth in section 262 of the Delaware Law
will be entitled to have its shares of common stock appraised by the Delaware
Court of Chancery and to receive payment in cash of the "fair value" of such
shares of common stock, exclusive of any element of value arising from the
accomplishment or expectation of the merger, together with a fair rate of
interest, if any, as determined by such court.

   This disclosure statement is your notice that appraisal rights are available
to you under section 262 of the Delaware Law. The text of section 262 of the
Delaware Law is attached to this disclosure statement as Appendix B. If you
wish to exercise your appraisal rights or to preserve your right to do so, you
should review the following description and Appendix B carefully. Failure to
timely, properly and strictly comply with the required procedures will result
in the loss of appraisal rights under Section 262 of the Delaware Law.

   If you wish to exercise your appraisal rights you (a) must not vote in favor
of the adoption of Agreement and Plan of Merger and (b) must deliver to CESH
prior to the vote on the Agreement and Plan of Merger at the CESH annual
meeting, a written demand for appraisal of your shares of common stock. Your
written demand for appraisal must be in addition to and separate from any proxy
or vote abstaining from or against the merger. Your demand must reasonably
inform CESH of your identity and your intent to demand appraisal of your shares
of CESH common stock. In order to exercise appraisal rights you must be the
record holder of shares of common stock on the date your written demand for
appraisal is made and you must continue to hold such shares of common stock
until the consummation of the merger. Accordingly, if you are the record holder
of shares of common stock on the date the written demand for appraisal is made,
but you thereafter transfer such shares of common stock prior to consummation
of the merger, you will lose any right to appraisal in respect of such shares
of common stock.

   Only a holder of record of shares of common stock is entitled to assert
appraisal rights for the shares of common stock registered in that holder's
name. A demand for appraisal should be executed by or on behalf of the holder
of record, fully and correctly, as such holder's name appears on such holder's
stock certificates. If the shares of common stock are owned of record in a
fiduciary capacity, such as by a trustee, guardian or custodian, execution of
the demand should be made in that capacity, and if the shares of common stock
are owned of record by more than one owner as in a joint tenancy or tenancy in
common, the demand should be

                                       56
<PAGE>

executed by or on behalf of all joint owners. An authorized agent, including
one or more joint owners, may execute a demand for appraisal on behalf of a
holder of record; however, the agent must identify the record owner or owners
and expressly disclose the fact that, in executing the demand, the agent is
agent for such owner or owners. A record holder such as a broker who holds
shares of common stock as nominee for several beneficial owners may exercise
appraisal rights with respect to the shares of common stock held for one or
more beneficial owners while not exercising such rights with respect to the
shares of common stock held for other beneficial owners; in such case, the
written demand should set forth the number of shares of common stock as to
which appraisal is sought. When no number of shares of common stock is
expressly mentioned, the demand will be presumed to cover all shares of common
stock in brokerage accounts or other nominee forms and those who wish to
exercise appraisal rights under section 262 of the Delaware Law are urged to
consult with their brokers to determine the appropriate procedures for the
making of a demand for appraisal by such a nominee.

   ALL WRITTEN DEMANDS FOR APPRAISAL SHOULD BE DELIVERED TO WILLEM ELLIS, 7031
OHMS LANE, SUITE 600, EDINA, MINNESOTA 55439.

   Within ten days after the effective time of the merger, the Company as the
surviving corporation in the merger, will notify each stockholder who has
properly demanded appraisal rights under section 262 of the Delaware Law and
has not voted in favor of the Agreement and Plan of Merger of the date that the
merger has become effective.

   Within 120 days after the effective time of the merger, but not thereafter,
CESH, or any stockholder who has complied with the requirements of section 262
of the Delaware Law and is otherwise entitled to appraisal rights, may file a
petition in the Delaware Court of Chancery demanding a determination of the
fair value of the shares of common stock. CESH is under no obligation to and
has no present intention to file a petition with respect to the appraisal of
the fair value of the shares of common stock. Accordingly, it will be your
obligation, if you wish to assert appraisal rights, to initiate all necessary
action to perfect their appraisal rights within the time prescribed in section
262 of the Delaware Law.

   If you have complied with the requirements for exercise of appraisal rights,
you will be entitled, within 120 days after the effective time of the merger
and upon written request, to receive from CESH a statement setting forth the
aggregate number of shares not voted in favor of the merger and with respect to
which demands for appraisal have been received and the aggregate number of
holders of such shares. Such written statement will be mailed to you within ten
days after your written request is received by CESH or within ten days after
expiration of the period for delivery of demands for appraisal, whichever is
later.

   If a petition for an appraisal is filed timely, after a hearing on such
petition, the Delaware Court of Chancery will determine the stockholders
entitled to appraisal rights and will appraise the "fair value" of their shares
of common stock, exclusive of any element of value arising from the
accomplishment or expectation of the merger, together with a fair rate of
interest, if any, to be paid upon the amount determined to be the fair value.
You should be aware that the fair value of your shares of common stock as
determined under section 262 of the Delaware Law could be more than, the same
as or less than the value of the consideration you would receive pursuant to
the Agreement and Plan of Merger if you did not seek appraisal.

   The costs of the action may be determined by the Delaware Court of Chancery
and taxed upon the parties as the Delaware Court of Chancery deems equitable in
the circumstances. Upon application of a stockholder, the Delaware Court of
Chancery may order that all or a portion of the expenses incurred by any
stockholder in connection with an appraisal, including, without limitation,
reasonable attorneys' fees and the fees and expenses of experts utilized in the
appraisal proceeding, be charged pro rata against the value of all of the
shares of common stock entitled to appraisal.

   If you have demanded an appraisal in compliance with section 262 of the
Delaware Law, you will not, after the effective time of the merger, be entitled
to vote the shares of common stock subject to such demand for any purpose or be
entitled to the payment of dividends or other distributions on those shares
(except dividends or other distributions payable to stockholders of record as
of a record date prior to the effective time of the merger).

                                       57
<PAGE>

   If you demand appraisal of your shares of common stock under Section 262 of
the Delaware Law but fail to perfect, or effectively withdraws or loses, your
right to appraisal, as provided in section 262 of the Delaware Law, your shares
of common stock will be converted into the right to receive the consideration
receivable with respect to such shares in accordance with the Agreement and
Plan of Merger (without interest). A stockholder will fail to perfect, or
effectively lose or withdraw, the right to appraisal if, among other things, no
petition for appraisal is filed within 120 days after the effective time of the
merger, or if the stockholder delivers to CESH a written withdrawal of his, her
or its demand for appraisal. Any such attempt to withdraw an appraisal demand
more than 60 days after the consummation of the merger will require the written
approval of CESH and, once a petition for appraisal is filed, the appraisal
proceeding may not be dismissed as to any holder absent court approval.

   FAILURE TO FOLLOW THE STEPS REQUIRED BY SECTION 262 OF THE DELAWARE LAW FOR
PERFECTING AND PURSUING APPRAISAL RIGHTS MAY RESULT IN THE LOSS OF SUCH RIGHTS
(IN WHICH EVENT A STOCKHOLDER WILL BE ENTITLED TO RECEIVE THE CONSIDERATION
RECEIVABLE IN ACCORDANCE WITH THE AGREEMENT AND PLAN OF MERGER).

         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

   The following table sets forth, as of December 31, 1999, the number and
percentages of outstanding shares of the Company's common stock beneficially
owned by each current director (all of whom are nominated for re-election to
serve until the effective time of the merger) and by all directors and current
officers as a group. The table also shows the anticipated beneficial ownership
for those who will be officers, directors and 5% shareholders of the Company
following the merger. The Company is aware of no stockholder, other than
Richard A. Skeie, Donald M. Brown, John S. Kirk and Sheldon T. Fleck currently
claiming to hold more than five percent of the Company's outstanding stock:

<TABLE>
<CAPTION>
                          No. of Shares
                          Beneficially  No. of Shares
                           Owned Prior  Beneficially     Percent of     Percent of
                             to the      Owned After   Class Prior to Class After the
Name of Beneficial Owner    Merger(5)   the Merger(6)    the Merger       Merger
- ------------------------  ------------- -------------  -------------- ---------------
<S>                       <C>           <C>            <C>            <C>
Richard A. Skeie(1)(7)..     110,528       110,656           9.9%           4.4%
Donald M. Brown(2)......     110,270       110,270           9.9%           4.4%
John S. Kirk(1)(8)......      76,214        82,520           6.8%           3.3%
Sheldon T. Fleck(3)(9)..     108,599       184,959           9.7%           7.2%
David J.
 Lundquist(4)(10).......      13,399        13,900           1.2%             *
Christian F.
 Gurney(1)(11)..........      54,308        57,420           4.7%           2.2%
Curtis W. Lack(1).......          20         5,020(15)         *              *
Thomas Patin(1).........         n/a         8,000(13)       n/a              *
Venturian...............         n/a       385,742           n/a           15.3%
Atio International......         n/a       799,941(14)       n/a           28.2%
Willem Ellis............         n/a        75,002(17)       n/a            3.0%
Bouwe Hamersma..........         n/a        22,862(17)       n/a              *
Private Offering
 Investors..............         n/a       218,750(16)       n/a            8.7%
Total Pre-Merger
 Officers and Directors
 as a Group(12).........     339,068       430,475          29.2%          16.3%
</TABLE>
- --------
*less than 1%
(1) The address of Mr. Skeie, Mr. Kirk, Mr. Gurney, Mr. Lack and Mr. Patin is
    c/o CE Software Holdings, Inc., P.O. Box 65580, West Des Moines, IA 50265.
(2) The address of Mr. Brown is 1650 Fuller Road, West Des Moines, Iowa 50265.
(3) The address of Mr. Fleck is York Investments, 5720 Smetana Drive, Suite
    300, Minnetonka, MN 55343.

                                       58
<PAGE>

(4) The address of Mr. Lundquist is 2600 Grand Avenue, Suite 216, Des Moines,
    IA 50312.
(5) Includes shares actually owned and shares represented by stock options that
    are exercisable within sixty days of the date of this table (December 31,
    1999).
(6) Includes shares actually owned and shares represented by stock options that
    are exercisable immediately after the merger. Also included are 218,750
    shares the Company expects to issue in the private offering. The terms of
    the private offering have not yet been finalized.
(7) Includes 106,056 shares and 4,472 vested stock options prior to the merger
    and 4,600 vested stock options after the merger.
(8) Includes 72,520 shares currently owned by Mr. Kirk and 3,692 vested stock
    options prior to the merger and 10,000 vested stock options after the
    merger.
(9) Includes 78,700 shares and 5,899 vested stock options prior to the merger.
    Also included are options to purchase a total of 24,000 shares under
    separate agreements between Mr. Fleck and Messrs. Kirk, Skeie and Brown.
    The post-merger figure includes 28,984 shares to be issued at the effective
    time of the merger and 46,875 shares that may be issued upon conversion of
    the Convergent loan and 6,400 vested stock options. These figures do not
    include 36,048 shares to be issued to trusts for the benefit of his
    children at the effective time of the merger and 16,406 shares that may be
    issued to trusts for the benefit of Mr. Fleck's children upon conversion of
    the Convergent loan. Mr. Fleck disclaims beneficial interest in any shares
    issued to such trusts. Mr. Fleck may participate in the private offering in
    an undetermined amount. No shares that may be issued to Mr. Fleck in the
    private offering have been included.
(10) Includes 9,000 shares and 4,399 vested stock options prior to the merger
     and 4,900 vested stock options after the merger.
(11) Includes 22,420 shares and 31,888 vested stock options prior to the merger
     and 35,000 vested stock options after the merger.
(12) This figure included only amounts owned after the merger by individuals
     who were officers and directors of CESH before the merger.
(13) Includes 8,000 stock options exercisable within two months of the
     effective date of the merger.
(14) Includes 485,879 shares that will be issued in exchange for ATIO shares
     owned by Atio International and 314,062 shares that will be issued to Atio
     International if it exercises its right to purchase additional shares.
(15) Includes 20 shares and 5,000 stock options that will be vested after the
     merger.
(16) This figure assumes an issuance of 218,750 shares in connection with the
     private offering that is to be complete on or before closing of the
     merger. This number assumes that in order to raise the minimum $1.5
     million required by the Agreement and Plan and Merger, subscriptions for
     securities valued at $1,750,000 would have to be raised in order to meet
     expenses of the private offering in the estimated amount of $250,000.
(17) Includes shares to be issued upon conversion of ATIO shares and options
     exercisable within 60 days of the effective time of the merger.

Directors, Executive Officers, Promoters, and Control Persons

   Richard A. Skeie, John S. Kirk, Christian F. Gurney, Sheldon T. Fleck, and
David J. Lundquist are all current directors and each has been nominated for
re-election to serve subject to replacement by the persons designated under the
Agreement and Plan of Merger. As nominees, each has a brief biography,
describing any officer positions held, under the section titled "Nominees for
Election as Directors" within this disclosure statement. Other executive
officers and significant employees not previously disclosed include:

   Curtis W. Lack, 48, is the chief financial officer of the Company and its
operating subsidiary, CE Software. Mr. Lack was chief financial officer from
1993 to 1997 and rejoined the Company on October 18, 1999. Prior work
experiences include senior manager with KPMG LLP, chief financial officer
positions for

                                       59
<PAGE>

Meredith/Burda Corporation and Delavan, Inc., and chief operating officer for
Color Converting Industries, Inc. Mr. Lack received a bachelor's degree from
Iowa State University in 1973 and his certified public accountant certificate
in 1975. He currently serves on the West Des Moines Board of Education and the
board of directors of Iowa Limestone Company. He is a member of the Polk-Des
Moines Taxpayers Association, Financial Executives Institute, the American
Institute of CPAs and is active in other civic organizations.

                             EXECUTIVE COMPENSATION

   The following table sets forth information concerning the compensation of
the chief executive officer of the Company and the other executive of the
Company whose total salary and bonus for the year ended September 30, 1999,
exceeded $100,000, for services in all capacities to the Company and its
subsidiaries during such fiscal year.

                           SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
                                                             Long-
                                 Fiscal                       Term
                                  Year                      Compen-   All Other
Name and                         Ended                       sation    Compen-
Principal Position              Sept 30,  Salary  Bonus(1) Options(2) sation(3)
- ------------------              -------- -------- -------- ---------- ---------
<S>                             <C>      <C>      <C>      <C>        <C>
Christian F. Gurney(6).........   1999   $150,000  $    0         0    $4,845
 President and CEO                1998   $150,000  $1,000         0    $4,845
 and Director                     1997   $108,720  $  144    40,000    $3,396

Curtis W. Lack(4)(6)...........   1999   $      0  $    0    $    0    $    0
 CFO                              1998   $      0  $    0    $    0    $    0
                                  1997   $104,850  $  144     5,000    $3,276

John S. Kirk(5)(6).............   1999   $ 33,000  $    0    $    0    $1,045
 President and CEO and            1998   $ 24,000  $1,000     6,200    $  720
 Director of CE Software          1997   $ 24,000  $  144     3,800    $  720
</TABLE>
- --------
(1) On September 30, 1998, the Company awarded each of its employees a $1,000
    bonus. In fiscal year 1997, the Company awarded each of its employees 20
    shares of the Company's Common Stock as a bonus (the amount was the value
    of stock at the time of the gift).
(2) These amounts represent the shares of stock underlying options granted to
    each named employee in the year indicated. Mr. Gurney exercised options to
    purchased 5,000 shares in 1999 by a cashless exercise through his broker.
    The options had an exercise price of $2.4375 per share and a market price
    of $5.50 the date of the cashless exercise.
(3) The Company has in effect a 401(k) profit sharing plan and life insurance
    plan that covers substantially all of its employees, including executive
    officers. The profit sharing component of the plan is funded by employer
    contributions at a uniform percentage of salary as set annually by the
    Board of Directors. No profit sharing contributions were made during the
    three-year period ended September 30, 1999. The 401(k) component of the
    plan allows qualified employees to contribute between 1% and 12% of their
    compensation. The plan calls for employer matching of contributions as
    determined by the Board of Directors. Contributions under the plan vest 33
    1/3 percent for each year of credited service. The Company also provides
    life insurance coverage at one times the employee's annual base salary.
(4) Mr. Lack was chief financial officer for the Company from May 1993 through
    September 1997. He joined the Company again in October of 1999 and is being
    paid a monthly salary of $10,000.
(5) Mr. Kirk was an employee, secretary and treasurer of CESH during 1997, 1998
    and 1999. He was appointed President and CEO of CE Software on October 6,
    1999, a position he will continue to hold after the merger and the
    distribution of CE Software stock. Mr. Kirk's annual salary is currently
    $60,000.
(6) Messrs. Gurney, Kirk and Lack will resign from their positions with CESH at
    the effective time of the merger.

                                       60
<PAGE>

                   PRICE RANGE OF COMMON STOCK AND DIVIDENDS

   The Company's common stock was initially offered to the public and was
available on the over-the-counter market under the symbol "CESH" on October 12,
1990. It was traded on the Nasdaq National Market under the symbol "CESH" from
September 3, 1991 through June 30, 1997. Since June 30, 1997, the stock has
been trading on the Nasdaq SmallCap Market under the symbol "CESH."

   The following table sets forth the range of high and low sales prices per
share of common stock for the last two fiscal years as provided by Nasdaq.

<TABLE>
<CAPTION>
                                                                   Common stock
                                                                   -------------
                                                                    Low    High
                                                                   ------ ------
      <S>                                                          <C>    <C>
      Quarter ended:
      September 30, 1999.......................................... $4.188 $8.000
      June 30, 1999...............................................  3.125  7.000
      March 31, 1999..............................................  3.250  5.000
      December 31, 1998...........................................  3.625  5.500
      September 30, 1998..........................................  2.250  5.250
      June 30, 1998...............................................  2.000  4.000
      March 31, 1998..............................................  1.625  3.250
      December 31, 1997...........................................  1.625  3.969
</TABLE>

   On December 27, 1999, the last full trading day prior to the date of the
public announcement of the Merger, CESH's common stock closed at $12.00 per
share. On November 30, 1999, the closing price for CESH's common stock was
$10.00 per share and CESH had 174 stockholders of record.

   There are no restrictions on the Company's ability to pay dividends;
however, it is currently the intention of the CESH board of directors to retain
any and all earnings for use in the Company's business and the Company does not
anticipate paying cash dividends in the foreseeable future. Any future
determination as to the payment of dividends will depend, among other factors,
upon the earnings, capital requirements, operating results and financial
condition of the Company. The CESH Board has not declared and the Company did
not pay cash dividends in fiscal 1999 or fiscal 1998.

                     MANNER IN WHICH PROXIES WILL BE VOTED

   The Company proposes to vote the proxies for the election of each of the
above named five nominees to the board, each to hold office until the next
annual meeting and until his successor is elected and has qualified. In the
event any nominee is not available to serve as a director at the time of the
election (which the Company has no reason to anticipate), proxies may be voted
for such substitute nominees as the Company may propose. The Company proposes
to vote the proxies in favor of Proposals #2-5. The proxies may be voted to
transact any other business that may come before the meeting.

                         INDEPENDENT PUBLIC ACCOUNTANTS

   The audit of the Company's financial statements for the year ended September
30, 1999, was conducted by KPMG LLP. A representative from such firm is
expected to be present at the meeting to answer appropriate questions, but does
not intend to make a statement. We anticipate that KPMG LLP will be selected as
the independent auditor for CE Software after the spin-off.

   The audit of ATIO's financial statements for the year ended December 31,
1998, was conducted by PricewaterhouseCoopers LLP. Officers of ATIO have
informed us they intend to retain PricewaterhouseCoopers LLP as the Company's
independent auditors after the effective date of the merger, subject to
ratification by the board of directors.

   The audit of ATIO's financial statements for the year ended December 31,
1997, was conducted by Grant Thornton LLP.

                                       61
<PAGE>

                                 OTHER MATTERS

   The Board knows of no other matter to be presented at the meeting. However,
if any other matter properly comes before the meeting, the persons named in the
proxy form enclosed will vote in accordance with their judgment upon such
matters. Stockholders who do not expect to attend in person are urged to
execute and return the enclosed proxy card promptly.

                           PROPOSALS OF STOCKHOLDERS

   The Company's next annual meeting is expected to be held during the second
quarter (January, February, March) of fiscal year 2001, at a time and date to
be determined by the board of directors. Any stockholder who intends to submit
a proposal for inclusion in our proxy materials for that annual meeting must
deliver the proposal to the corporate secretary at our principal office not
later than September 30, 2000. If such proposal is in compliance with all of
the requirements of Rule 14a-8 under the Securities Exchange Act of 1934 it
will be included in the proxy statement and set forth on the appointment form
of proxy issued for such annual meeting of shareholders. Nothing in this
section shall be deemed to require the Company to include in its proxy
statement and proxy relating to that meeting any shareholder proposal which
does not meet all of the requirements for inclusion established by the SEC in
effect at the time such proposal is received.

   If we receive notice of a shareholder proposal which is not intended for
inclusion in our proxy statement on or before January 1, 2001, so long as we
include in the proxy statement for that meeting our advice on the proposed
matter and how the named proxy holders intend to vote the shares for which they
have received discretionary authority, such proxy holders may exercise
discretionary authority with respect to such proposal, except to the extent
limited by the SEC's rules governing shareholder proposals.

                             AVAILABLE INFORMATION

   No person is authorized to give any information or to make any
representations, other than as contained in this disclosure statement, in
connection with the merger and the distribution of CE Software stock, and if
given or made, such information or representations may not be relied upon as
having been authorized by CESH or by CE Software. The delivery of this
disclosure statement shall not, under any circumstances, create any implication
that there has been no change in the information set forth herein or in the
affairs of CESH, CE Software or ATIO since the date hereof.

                           INCORPORATION BY REFERENCE

   The SEC allows us to "incorporate by reference" information into this
disclosure statement. This means that we can disclose important information to
you be referring you to another document filed separately with the SEC. The
information incorporated by reference is considered to be part of this
disclosure statement, and later information filed with the SEC will update and
supersede the information in this disclosure statement.

   We incorporate by reference each document we file pursuant to Sections
13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this disclosure
statement and prior to the annual meeting. We also incorporate by reference in
to this disclosure statement the following documents that we filed with the SEC
under the Exchange Act:

  . our Annual Report on Form 10-KSB for the year ended September 30, 1999;

  . our Quarterly Reports on Form 10-QSB for the quarters ended December 31,
    1998, March 31, 1999, June 30, 1999 and December 31, 1999.

                                       62
<PAGE>

   All subsequent documents filed by us with the SEC pursuant to Sections
13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this disclosure
statement and prior to the annual meeting will be deemed to be incorporated by
reference into this disclosure statement and to be a part of the disclosure
statement from the date of filing of those documents.

   You should rely only on the information contained in (or incorporated by
reference into) this disclosure statement. We have not authorized anyone to
give any information different from the information contained in (or
incorporated by reference into) this disclosure statement. This disclosure
statement is dated                   . You should not assume that the
information contained in this proxy statement is accurate as of any later date,
and the mailing of this disclosure statement to you shall not create any
implication to the contrary.

   Documents incorporated by reference are available from us without charge,
excluding all exhibits (unless we have specifically incorporated by reference
an exhibit into this disclosure statement). You may obtain documents
incorporated by reference by requesting them in writing or by telephone as
follows:

     CE Software Holdings, Inc.
     1801 Industrial Circle
     West Des Moines, Iowa 50265
     (515) 221-1801, ext. 2110

   If you would like to request documents from us, please do so by
                  in order to ensure timely receipt before the special meeting.

     John S. Kirk
     Secretary
     West Des Moines, Iowa
     January 27, 2000

                                       63
<PAGE>

                         INDEX TO FINANCIAL STATEMENTS

<TABLE>
<S>                                                                         <C>
Independent Auditors' Report..............................................   D1

Consolidated Balance Sheets of CE Software Holdings, Inc., and
 Subsidiaries September 30, 1999 and 1998.................................   D2

Consolidated Statements of Operations of CE Software Holdings, Inc., and
 Subsidiaries for years ended September 30, 1999, 1998, and 1997..........   D3

Consolidated Statements of Stockholders' Equity of CE Software Holdings,
 Inc. and Subsidiaries for years ended September 30, 1999, 1998, and 1997.   D4

Consolidated Statements of Cash Flows of CE Software Holdings, Inc., and
 Subsidiaries for years ended September 30, 1999, 1998, and 1997..........   D5

Notes to Consolidated Financial Statements of CE Software Holdings, Inc.,
 and Subsidiaries for years ended September 30, 1999, 1998, and 1997......   D6

Report of Independent Accountants.........................................  D15

Report of Independent Certified Public Accountants........................  D16

Balance Sheets of ATIO Corporation USA, Inc. as of December 31, 1997 and
 1998 and September 30, 1999 (unaudited)..................................  D17

Statements of Operations of ATIO Corporation USA, Inc. for years ended
 December 31, 1997 and 1998 and for nine months ended September 30, 1999
 (unaudited)..............................................................  D18

Statements of Changes in Shareholders' Deficit of ATIO Corporation USA,
 Inc. for years ended December 31, 1997 and 1998 and for nine months ended
 September 30, 1999 (unaudited)...........................................  D19

Statements of Cash Flows of ATIO Corporation USA, Inc. for years ended
 December 31, 1997 and 1998 and for nine months ended September 30, 1999
 (unaudited)..............................................................  D20

Notes to Financial Statements of ATIO Corporation USA, Inc. for years
 ended December 31, 1997 and 1998 and for nine months ended September 30,
 1999 (unaudited).........................................................  D21
</TABLE>

                                       64
<PAGE>

                                   APPENDIX A

                              AMENDED AND RESTATED
                          AGREEMENT AND PLAN OF MERGER

                                  BY AND AMONG

                          CE SOFTWARE HOLDINGS, INC.,

                           ATIO CORPORATION USA, INC.

                 THE STOCKHOLDERS OF ATIO CORPORATION USA, INC.

                               CC MANAGEMENT, LLC

                                      AND

                           ATIO CORPORATION (PTY) LTD

                         Dated as of December 28, 1999


<PAGE>

                          AGREEMENT AND PLAN OF MERGER

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
ARTICLE I--THE MERGER......................................................   1
   1.1  The Merger.........................................................   1
      1.1.1 The Merger.....................................................   1
      1.1.2 Effect of the Merger...........................................   1
      1.1.3 Consummation of the Merger.....................................   2
      1.1.4 Certificate of Incorporation...................................   2
      1.1.5 By-Laws........................................................   2
      1.1.6 Directors and Officers.........................................   2
      1.1.7 Merger Consideration...........................................   2
   1.2  Exchange Procedures................................................   4
   1.3  Fractional Shares..................................................   5
   1.4  Effect of Stockholder Approval.....................................   5
   1.5  Closing............................................................   5

ARTICLE II--REPRESENTATIONS AND WARRANTIES OF ATIO.........................   5
   2.1  Organization and Qualifications of ATIO............................   5
   2.2  Subsidiaries.......................................................   5
   2.3  Capital Stock; Beneficial Ownership................................   5
   2.4  Authority of ATIO..................................................   6
   2.5  Real and Personal Property.........................................   6
   2.6  Financial Statements...............................................   7
   2.7  Taxes..............................................................   7
   2.8  Accounts Receivable; Accounts Payable..............................   8
   2.9  Absence of Certain Changes.........................................   8
   2.10 Ordinary Course....................................................   9
   2.11 Banking Relations..................................................   9
   2.12 Intellectual Property..............................................   9
   2.13 Contracts..........................................................  11
   2.14 Litigation.........................................................  12
   2.15 Compliance with Laws...............................................  12
   2.16 Insurance..........................................................  12
   2.17 Warranty or Other Claims...........................................  12
   2.18 Powers of Attorney.................................................  12
   2.19 Finder's Fee.......................................................  12
   2.20 Corporate Records; Copies of Documents.............................  12
   2.21 Employees; Labor Relations.........................................  12
   2.22 Employee Benefit Programs..........................................  13
   2.23 Hazardous Waste, Etc...............................................  14
   2.24 Year 2000 Compliance...............................................  15
   2.25 List of Certain Employees; Customers, Suppliers and Vendors........  15
   2.26 Transactions with Affiliates.......................................  15
   2.27 Disclosure.........................................................  16

ARTICLE III--REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDERS              16

ARTICLE IV--COVENANTS OF ATIO..............................................  16
   4.1  Tax Returns........................................................  16
   4.2  Financial Position of ATIO at Closing..............................  16
</TABLE>

                                      B-i
<PAGE>

<TABLE>
<CAPTION>
                            Page
                            ----
<S>                         <C>
   4.3  Cooperation of
   ATIO...................   16
   4.4  No Option Grants
   or Stock Sales.........   16
   4.5  Preservation of
   Business...............   16

ARTICLE V--REPRESENTATIONS
 AND WARRANTIES OF BUYER..   17
   5.1  Organization......   17
   5.2  Authority.........   17
   5.3  Capitalization....   17
   5.4  Financial Position
   of Buyer at Closing....   17
   5.5  Litigation........   18
   5.6  Finder's Fee......   18
   5.7  Buyer's Public
   Information............   18
   5.8  Buyer Common
   Stock..................   19
   5.9  Absence of Certain
   Changes................   19
   5.10 Compliance with
   Laws...................   19
   5.11 Disclosure........   19

ARTICLE VI--COVENANTS OF
 BUYER....................   19
   6.1  Resignation of
   Officers; Termination
   of Employees of Buyer..   19
   6.2  No Issuance of
   Additional
   Shares/Options.........   19
   6.3  Exclusivity.......   20
   6.4  Employee
   Solicitation
   Prohibited.............   21
   6.5  Corporate Changes.   21
   6.6  Insurance.........   21
   6.7  Disposition of
   Buyer Sub and
   Liquidation of CE
   Distributing, Inc......   21
   6.8  Stockholder
   Approvals..............   21
   6.9  Directors' and
   Officers'
   Indemnification........   21

ARTICLE VII--SPECIAL PRE-
 MERGER RESTRUCTURING
 COVENANTS................   22
   7.1  Venturian/Atio Pty
   Joint Venture
   Agreement..............   22
   7.2  ATIO Stockholder
   Agreements.............   22
   7.3  Convergent Bridge
   Loan Agreement.........   22
   7.4  Relocation of Key
   ATIO Personnel and the
   Development Team.......   22
   7.5  Title to
   Proprietary Rights.....   22
   7.6  Change of Name of
   ATIO...................   22
   7.7  Surviving
   Corporation Stock
   Option Plans...........   23
   7.8  Lockup Agreements.   23
   7.9  Employment
   Agreements.............   23
   7.10 Additional
   Investment by
   Venturian..............   23
   7.11 Additional
   Investment by Atio
   International..........   23
   7.12 Buyer, Atio
   International and
   Venturian Loans to
   ATIO...................   24
   7.13 Termination of
   Alternative Financing
   Solicitation...........   24
   7.14 Buyer Solicitation
   of Permitted New
   Investment.............   24
   7.15 Source Code.......   25
   7.16 Venturian/Smaby
   Litigation.............   25
   7.17 Disclaimer of Atio
   (Pty) Proprietary
   Rights.................   25

ARTICLE VIII--CONDITIONS..   25
   8.1  Conditions to the
   Obligations of Buyer...   25
   8.2  Conditions to the
   Obligations of ATIO....   26
</TABLE>


                                      B-ii
<PAGE>

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
ARTICLE IX--SURVIVAL; INDEMNIFICATION......................................  26
   9.1  Survival of Representations, Warranties, Etc.......................  26
   9.2  Indemnification by the Stockholders................................  27
   9.3  Limitations on Indemnification.....................................  27
      9.3.1 General Threshold..............................................  27
      9.3.2 General Maximum Indemnification................................  27
      9.3.3 Time Limits for Claims.........................................  27
      9.3.4 Dollar-for-Dollar and Fraud Claims.............................  27
      9.3.5 Contribution...................................................  28
   9.4  Indemnification by Buyer...........................................  28
   9.5  Notice; Defense of Claims..........................................  28
   9.6  Remedies...........................................................  29
   9.7  Directors' and Officers' Indemnification...........................  29

ARTICLE X--TERMINATION OF AGREEMENT........................................  30
  10.1  Termination........................................................  30
  10.2  Effect of Termination..............................................  30
  10.3  Right to Proceed...................................................  30

ARTICLE XI--MISCELLANEOUS..................................................  30
  11.1  Fees and Expenses..................................................  30
  11.2  Governing Law......................................................  31
  11.3  Notices............................................................  31
  11.4  Entire Agreement...................................................  32
  11.5  Assignability; Binding Effect......................................  32
  11.6  Captions and Gender................................................  32
  11.7  Execution in Counterparts..........................................  32
  11.8  Amendments.........................................................  32
  11.9  Publicity and Disclosures..........................................  32
  11.10 Definition of "Knowledge"..........................................  33
</TABLE>


                                     B-iii
<PAGE>

                         LIST OF EXHIBITS AND SCHEDULES

<TABLE>
 <C>                  <C> <S>
 SCHEDULES
    Schedule 1.1.7(d)  -- ATIO Options
    Schedule 2.3       -- Capital Stock; Beneficial Ownership
    Schedule 2.4       -- Required Consents
    Schedule 2.5(b)    -- Leased Real Property
    Schedule 2 5(c)    -- Personal Property
    Schedule 2.6       -- Financial Statements
    Schedule 2.7       -- Taxes
    Schedule 2.8       -- Accounts Receivable; Accounts Payable
    Schedule 2.9       -- Absence of Certain Changes
    Schedule 2.11      -- Banking Relations
    Schedule 2.12      -- Intellectual Property
    Schedule 2.13      -- Contracts
    Schedule 2.16      -- Insurance
    Schedule 2.21      -- Employees; Labor Relations
    Schedule 2.22      -- Employee Benefit Plans
    Schedule 2.24      -- Year 2000 Compliance
    Schedule 2.25      -- List of Certain Employees, Customers, Suppliers and
                          Vendors
    Schedule 2.26      -- Transactions with Affiliates
    Schedule 5.3       -- Capital Structure of Buyer
    Schedule 5.4       -- Equitable Increase Adjustment Calculation
    Schedule 5.9       -- Absence of Certain Changes
    Schedule 7.8       -- Parties to Lockup Agreements

 EXHIBITS
    Exhibit 1.1.4      -- Form of Certificate of Amendment
    Exhibit 1.2        -- Form of Letter of Transmittal and Shareholder
                          Indemnification Agreement
    Exhibit 5.4        -- Form of Escrow Agreement
    Exhibit 7.3        -- CC Management LLC ("Convergent") Matters
    Exhibit 7.8        -- Form of Lockup Agreement
    Exhibit 7.10       -- Form of Venturian Pledge Agreement
    Exhibit 7.11       -- Form of Atio International Pledge Agreement
    Exhibit 8.1(e)     -- Form of Opinion of Dorsey & Whitney LLP
    Exhibit 8.1(h)     -- Form of Transferor's Certificate of Non-Foreign
                          Status
    Exhibit 8.2(c)     -- Form of Opinion of Davis, Brown, Koehn, Shors &
                          Roberts, P.C.
</TABLE>

                                      B-iv
<PAGE>

                              AMENDED AND RESTATED
                          AGREEMENT AND PLAN OF MERGER

   THIS AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER (this "Agreement") is
executed on February 15, 2000. This Agreement is a restatement of the Agreement
and Plan of Merger entered into as of December 28, 1999 by and among (a) CE
Software Holdings, Inc., a Delaware corporation ("Buyer"), (b) Atio Corporation
USA, Inc., a Minnesota corporation ("ATIO"), (c) CC Management, LLC, a Delaware
limited liability company ("Convergent"), (d) Atio Corporation (Pty) Ltd, a
South African company ("Atio (Pty)"), and (e) Atio International, Inc., a
Delaware corporation ("Atio International"), Venturian Corp., a Minnesota
corporation ("Venturian"), Ilan Sharon, Willem Ellis, Bouwe Hamersma and Mark
Chodos (such individuals being hereinafter referred to as the "Individual
Stockholders" and the Individual Stockholders, together with Atio International
and Venturian being hereinafter referred to as the "Stockholders"). This
Agreement incorporates modifications to the Agreement and Plan of Merger agreed
by the parties as if those modifications had been made on December 28, 1999. No
modifications have been made to reflect factual changes occasioned by the
passage of time.

                              W I T N E S S E T H

   WHEREAS, Buyer and ATIO desire to effect a combination of their respective
businesses through a merger of ATIO with and into Buyer in accordance with
applicable laws; and

   WHEREAS, the Boards of Directors of Buyer and ATIO and the Stockholders of
ATIO each have determined that it is in their best interests to merge with and
into Buyer upon the terms in and subject to the conditions of this Agreement;
and

   WHEREAS, this Agreement and the transactions contemplated by this Agreement
are subject to the approval of Buyer's stockholders at a meeting of
stockholders to be held as soon as practicable after the date of this Agreement
(the "Meeting"); and

   WHEREAS, for federal income tax purposes, it is intended that the Merger (as
defined in Section 1.1) shall qualify as a reorganization within the meaning of
Section 368(a) of the Internal Revenue Code of 1986, as amended (the "Code"):

   NOW, THEREFORE, based upon the above premises and in consideration of the
mutual representations, warranties, covenants and agreements set forth herein,
the parties hereby agree as follows:

                         ARTICLE I--THE PLAN OF MERGER

   1.1 The Merger.

   1.1.1 The Merger. On the terms and subject to the conditions set forth in
this Agreement, at the Effective Time (as defined in Section 1.1.3 hereof), in
accordance with this Agreement, Chapter 302A, Minnesota Statutes (the
"Minnesota Law") and the Delaware General Corporation Law (the "Delaware Law"),
ATIO shall merge with and into Buyer (the "Merger"), the separate existence of
ATIO shall cease and Buyer shall continue, as the surviving corporation under a
corporate name to be selected by ATIO and Buyer. Buyer, in its capacity as the
corporation surviving the Merger, is sometimes referred to herein as the
"Surviving Corporation".

   1.1.2 Effect of the Merger. At and after the Effective Time (as defined in
Section 1.1.3 hereof), on the Closing Date (as defined in Section 1.5 hereof)
the Merger shall have the effects set forth in Sections 259 and 261 of the
Delaware Law, Sections 302A.601 through 302A.651 of the Minnesota Law, and all
other applicable laws.

                                      A-1
<PAGE>

   1.1.3 Consummation of the Merger. On the Closing Date (as defined in Section
1.5 hereof), the parties hereto shall cause a Certificate of Merger to be
signed by Buyer and filed with the Secretary of State of Delaware, in such form
as required by, and executed in accordance with, Sections 251 and 252 of the
Delaware Law, and Articles of Merger to be signed by the Buyer and ATIO and
filed with the Secretary of State of Minnesota, in such form as required by,
and executed in accordance with, Sections 302A.615 and 302A.651 of the
Minnesota Law. The Merger shall be effective as of the later of the date of
such filing of such Certificate of Merger or such Articles of Merger at the
time specified therein, or, if no time is specified therein, at the time
prescribed by law (the "Effective Time").

   1.1.4 Certificate of Incorporation. From and after the Effective Time, the
Certificate of Incorporation of Buyer as heretofore amended (the "Buyer
Certificate of Incorporation"), and as hereafter amended prior to the Effective
Time in substantially the form of the certificate of amendment (the
"Certificate of Amendment") set forth in Exhibit 1.1.4 hereto shall be and
become the Certificate of Incorporation of the Surviving Corporation, and shall
thereafter continue in effect until amended as provided therein and in
accordance with the Delaware Law.

   1.1.5 By-Laws. The By-Laws of Buyer, as in effect immediately prior to the
Effective Time, shall be the By-Laws of the Surviving Corporation, and shall
thereafter continue in effect until amended as provided therein and in
accordance with the Delaware Law.

   1.1.6 Directors and Officers. Prior to the Effective Time the Stockholders
will elect, as the sole directors of ATIO: Willem Ellis and such additional
persons as are acceptable to Buyer who shall be the directors of ATIO
immediately prior to the Effective Time and who shall, from and after the
Effective Time, be the initial directors of the Surviving Corporation, until
their respective successors shall have been duly elected at the Surviving
Corporation's annual stockholders' meeting in 2001, or appointed and qualified,
or until their earlier death, resignation or removal in accordance with the
Surviving Corporation's Certificate of Incorporation and By-Laws. The officers
of ATIO holding office immediately prior to the Effective Time shall, from and
after the Effective Time, be the initial officers of the Surviving Corporation.

   1.1.7 Merger Consideration. The manner of converting or canceling shares,
options and warrants of ATIO in the Merger shall be as follows:

     (a) ATIO Shares. At the Effective Time, each ATIO Share (not to exceed
  13,400,000 Shares) that is issued and outstanding immediately prior to the
  Effective Time will, by virtue of the Merger, and without the need for any
  further action on the part of the holder thereof, be converted into
  .06444777 (the "Stock Conversion Number") shares of Buyer's common stock,
  par value $.01 per share ("Buyer Common Stock"), subject to the provisions
  of Section 1.3 regarding the elimination of fractional shares.

     (b) Convergent Warrants. At the Effective Time, the warrants to purchase
  ATIO shares held by the various participants (the "Convergent Investors")
  with Convergent (each a "Convergent Warrant") that are outstanding
  immediately prior to the Effective Time will, by virtue of the Merger and
  at the Effective Time and without the need for any further action on the
  part of any holder thereof, be converted into 176,301 shares of Buyer
  Common Stock, subject to the provisions of Section 1.3 regarding the
  elimination of fractional shares.

     (c) Piper Jaffray Warrants. At the Effective Time, the warrants to
  purchase ATIO Shares held by U.S. Bancorp Piper Jaffray, Inc. (each a
  "Piper Jaffray Warrant") that are outstanding immediately prior to the
  Effective Time will, by virtue of the Merger and at the Effective Time and
  without the need for any further action on the part of any holder thereof,
  be converted into 3,237 shares of Buyer Common Stock, subject to the
  provisions of Section 1.3 regarding the elimination of fractional shares.

     (d) ATIO Employee, Director and Other Options. At the Effective Time,
  each option to purchase ATIO Shares (each, an "ATIO Option") issued
  pursuant to the ATIO stock option plans (the "ATIO Stock Option Plans") as
  set forth on Schedule 1.1.7(d) that is outstanding immediately prior to the
  Effective Time (not to exceed options to purchase 2,941,502 ATIO Shares in
  the aggregate) will, by virtue of the

                                      A-2
<PAGE>

  Merger and at the Effective Time and without the need for any further
  action on the part of any holder thereof, be assumed by Buyer and converted
  into an option (a "Substitute Buyer Option") to purchase that number of
  shares of Buyer Common Stock determined by multiplying the number of ATIO
  Shares that are subject to such Option immediately prior to the Effective
  Time by the Stock Conversion Number, at an exercise price per share of
  Buyer Common Stock equal to the exercise price per ATIO Share that was in
  effect for such Option immediately prior to the Effective Time divided by
  the Stock Conversion Number; provided, however, that if the foregoing
  calculation would result in an assumed and converted ATIO Option being
  converted into a Substitute Buyer Option that, after aggregating all of the
  shares of Buyer Common Stock issuable upon the exercise of such Substitute
  Buyer Option, would be exercisable for a fraction of a share of Buyer
  Common Stock, then the number of shares of Buyer Common Stock subject to
  such Substitute Buyer Option will be rounded down to the nearest whole
  number of shares of Buyer Common Stock. The terms, exercisability, vesting
  schedule, status as an "incentive stock option" under Section 422 of the
  Code (if applicable) or as a non-qualified stock option, and all other
  terms and conditions of each ATIO Option (including without limitation the
  provisions of the ATIO Stock Option Plan that forms part of the terms and
  conditions of such ATIO Option), that is converted into a Substitute Buyer
  Option in the Merger will (except as otherwise provided in the terms of
  such Options), to the extent permitted by law, be unchanged and continue in
  effect after the Effective Time of the Merger. The pre-Merger employment by
  ATIO (or other service of the holder to ATIO which is considered to be
  service to ATIO under the ATIO Stock Option Plan) of each holder of an ATIO
  Option shall be credited to such holder for purposes of applying any
  vesting schedule based on the duration of such holder's employment or other
  service contained in the Substitute Buyer Option issued to such holder upon
  the conversion of such ATIO Option in the Merger in order to determine the
  number of shares of Buyer Common Stock that are exercisable under such
  Substitute Buyer Option at any point in time. This Section 1.1.7(d) is
  intended to meet the requirements of Section 424(a) of the Code and shall
  be interpreted consistent with such intent. It is understood that ATIO may
  allow individual holders of ATIO Options the opportunity to re-price the
  ATIO Options prior to the Effective Time if the holder waives any
  accelerated vesting which would otherwise occur upon the Merger, and each
  holder (except the holders of approximately 411,000 options issued to
  employees of ATIO as a "salary sacrifice" as listed on Schedule 1.1.7(d)
  agrees to a new vesting schedule of 25% every 6 months after the Effective
  Time.

     (e) Registration on Form S-8. Buyer shall take all corporate action
  necessary to reserve for issuance a sufficient number of shares of Buyer
  Common Stock for delivery upon exercise of the Options assumed in
  accordance with Section 1.1.7(d). As soon as practicable after the
  Effective Time, but in no event later than 40 days after the Effective
  Time, the Surviving Corporation will cause the shares of Buyer Common Stock
  that are subject to issuance upon exercise of the Substitute Buyer Options
  and that are issued upon the conversion of ATIO Options under Section
  1.1.7(d) and the shares of Buyer Common Stock that are subject to issuance
  upon exercise of options granted under the New Stock Option Plans (as
  defined in Section 7.7 hereof) to be registered on a registration statement
  (or to be issued pursuant to a then-effective registration statement) on
  Form S-8 (or successor form) promulgated by the Securities and Exchange
  Commission ("SEC") under the Securities Act of 1933 (the "1933 Act"), and
  will use its best efforts to maintain the effectiveness of such Form S-8
  registration statement or registration statements for so long as such
  Substitute Buyer Options remain outstanding and Buyer Common Stock is
  registered under the Securities Exchange Act of 1934, as amended (the "1934
  Act"). Notwithstanding the foregoing, Buyer shall not be obligated to
  register or maintain the registration under the 1933 Act of the issuance of
  any shares of Buyer Common Stock that are subject to a Substitute Buyer
  Option held by a person who is ineligible to have such person's securities
  registered on Form S-8 (or any successor form).

     (f) No ATIO Dissenting Shares. The Stockholders each hereby waive all
  rights to dissent or appraisal otherwise available to the Stockholders
  under the Minnesota Law.

     (g) Buyer Dissenting Shares. Holders of Buyer Common Stock, (except
  Donald M. Brown and all officers and directors of Buyer, all of whom have
  agreed in writing not to exercise appraisal rights), will have the right to
  exercise appraisal rights under Delaware Law.

                                      A-3
<PAGE>

     (h) Adjustments for Capital Changes. Notwithstanding the provisions of
  this Section 1.1.7, if at any time after the date this Agreement is duly
  executed by all parties and prior to the Effective Time, Buyer
  recapitalizes, either through a subdivision (or stock split) of any of its
  outstanding shares of Buyer Common Stock into a greater number of such
  shares, or a combination (or reverse stock split) of any of its outstanding
  shares of Buyer Common Stock into a lesser number of such shares, or
  reorganizes, reclassifies or otherwise changes its outstanding shares of
  Buyer Common Stock into the same or a different number of shares of other
  classes (other than through a subdivision or combination of shares provided
  for in the preceding clause), or declares a dividend on its outstanding
  shares payable in shares of Buyer Common Stock or in shares or securities
  convertible into shares of Buyer Common Stock (each, a "Capital Change"),
  or declares a dividend on its outstanding shares other than as permitted by
  Section 5.4 hereof or other than a dividend of the stock of CE Software,
  Inc., ("Buyer Sub") an Iowa corporation and a wholly owned subsidiary of
  Buyer, then the Stock Conversion Number will be proportionally and
  equitably adjusted.

     (i) Disposition of Buyer's Subsidiaries. At or immediately prior to the
  Effective Time, Buyer shall distribute the stock of Buyer Sub to the
  stockholders of Buyer. At or prior to the Effective Time, Buyer will
  liquidate its wholly owned subsidiary, CE Distributing, Inc., an Iowa
  corporation ("CE Distributing").

     (j) Vesting of Buyer Options. At the Effective Time all outstanding
  options granted under Buyer's stock option plans ("Buyer's Old Stock Option
  Plans") to persons who were directors of Buyer immediately prior to the
  Effective Time or were employees of Buyer or of Buyer Sub immediately prior
  to the Effective Time, other than persons who will continue as employees of
  the Surviving Corporation, shall vest.

     (k) Venturian Shares. Pursuant to a prior understanding, ATIO is
  obligated to issue shares of its common stock to Venturian. In recognition
  and fulfillment of this obligation, at the Effective Time Buyer shall issue
  to Venturian 4,833 shares of Buyer Common Stock.

   1.2 Exchange Procedures. (a) At or as soon as practicable after the
Effective Time, Buyer shall make available, and each Stockholder will be
entitled to receive, upon surrender to Buyer of one or more certificates
representing any ATIO Shares ("ATIO Certificates"), Convergent Warrants, or
Piper Jaffray Warrants for cancellation with a Letter of Transmittal and
Stockholder Indemnification Agreement (the "Letter of Transmittal") in the form
attached hereto as Exhibit 1.2, certificates representing the number of shares
of Buyer Common Stock ("Buyer Certificates") that such Stockholder or
warrantholder is entitled to receive pursuant to Section 1.1.7 hereof. The
shares of Buyer Common Stock and any cash paid in lieu of a fractional share of
Buyer Common Stock (the "Merger Consideration") that each Stockholder or
warrantholder shall be entitled to receive pursuant to the Merger shall be
deemed to have been issued at the Effective Time. No interest shall accrue on
the Merger Consideration. If the Merger Consideration (or any portion thereof)
is to be delivered to any person other than the person in whose name the ATIO
Certificates surrendered in exchange therefor is registered, it shall be a
condition to such exchange that the person requesting such exchange shall pay
to Buyer any transfer or other taxes required by reason of the payment of the
Merger Consideration to a person other than the registered holder of the ATIO
Certificate(s) so surrendered, or shall establish to the satisfaction of Buyer
that such tax has been paid or is not applicable. Notwithstanding the
foregoing, neither Buyer nor any other party hereto shall be liable to a holder
of ATIO Shares, Convergent Warrants, or Piper Jaffray Warrants, for any Merger
Consideration delivered to a public official pursuant to applicable abandoned
property, escheat and similar laws. Any holder of ATIO Shares, Convergent
Warrants, or Piper Jaffray Warrants, whose ATIO Certificate(s) have been lost
or stolen shall comply with the instructions set forth in the letter of
transmittal in order to receive the Merger Consideration.

   (b) After the Effective Time, there shall be no transfers of any ATIO
Shares, Convergent Warrants, or Piper Jaffray Warrants, on the stock transfer
books of the Surviving Corporation. If, after the Effective Time, ATIO
Certificates are presented to the Surviving Corporation, they shall be canceled
and exchanged in accordance with Sections 1.1.7 and 1.2 hereof.

                                      A-4
<PAGE>

   1.3 Fractional Shares. No fractional shares of Buyer Common Stock will be
issued in connection with the Merger, but in lieu thereof, the holder of any
ATIO Shares, Convergent Warrants, or Piper Jaffray Warrants, who would
otherwise be entitled to receive a fraction of a share of Buyer Common Stock
(after aggregating all shares of Buyer Common Stock being issued to such holder
in the Merger) shall receive from Buyer promptly after the Effective Time, an
amount of cash equal to such fraction multiplied by $6.48.

   1.4 Effect of Stockholder Approval. By execution of this Agreement, all
Stockholders are conclusively deemed to have made the Stockholder
representations set forth in Exhibit 1.2.

   1.5 Closing. The transactions contemplated by this Agreement shall be
consummated at the closing (the "Closing") which will take place at the offices
of Dorsey and Whitney in Minneapolis, Minnesota on February 29, 2000 (the
"Closing Deadline") or at such other place or earlier or later date or time as
may be fixed by mutual agreement of Buyer and ATIO (the "Closing Date").

               ARTICLE II--REPRESENTATIONS AND WARRANTIES OF ATIO

   ATIO hereby represents and warrants to Buyer, and each Stockholder
represents and warrants to the Buyer that, to the knowledge of such Stockholder
(except for those representations contained in Section 2.1, Section 2.2, the
first two sentences and last sentence of Section 2.3, the first two sentences
of Section 2.4, and all provisions of Section 2.5 which are not qualified to
the knowledge of any such Stockholder) except as set forth in the Schedules
attached hereto:

   2.1 Organization and Qualifications of ATIO. ATIO is a corporation duly
organized, validly existing and in good standing under the laws of the state of
Minnesota with full corporate power and authority to own or lease its
properties and to conduct its business in the manner and in the places where
such properties are owned or leased or such business is currently conducted or
currently proposed to be conducted. The copies of the Articles of Incorporation
of ATIO as amended to date, certified by the appropriate governmental officer,
and By-laws, as amended to date, certified by the Secretary of ATIO, and
heretofore delivered to Buyer's counsel, are complete and correct, and no
amendments thereto are pending. ATIO is not in violation, in any material
respect, of any provision of its Articles of Incorporation or By-laws. ATIO has
not qualified to do business as a foreign corporation in any other
jurisdiction.

   2.2 Subsidiaries. ATIO has no subsidiaries and does not own any securities
issued by any other business organization or governmental authority. ATIO does
not own and does not have any direct or indirect interest in or control over
any corporation, partnership, joint venture or entity of any kind.

   2.3 Capital Stock; Beneficial Ownership. The authorized capital stock of
ATIO consists of 50,000,000 shares, including 35,000,000 shares of common stock
with a par value of one cent ($.01) per share (the "ATIO Common Stock"), of
which 13,345,220 shares are duly and validly issued, outstanding, fully paid
and non-assessable and of which 21,654,780 shares are authorized but unissued,
and 15,000,000 shares of preferred stock, none of which has been issued. Except
as set forth on Schedule 2.3 hereto, there are no outstanding shares of capital
stock of ATIO or options, warrants, rights, commitments, preemptive rights or
agreements of any kind for the issuance or sale of, or outstanding securities
convertible into, any additional shares of capital stock of any class of ATIO.
None of the capital stock of ATIO has been issued in violation of any federal
or state securities law. None of the capital stock of ATIO has been issued in
violation of any foreign law, including, without limitation, the Companies Act
61 of 1973. There are no voting agreements, trusts, proxies or other
agreements, instruments or undertakings with respect to the voting of the
capital stock of ATIO to which ATIO is a party or of which ATIO has knowledge.
The Stockholders own of record all of the outstanding ATIO Shares, which
consist solely of the ATIO Shares set forth on Schedule 2.3 hereto (together
with any shares required to be issued by ATIO pursuant to the exercise of
Convergent Warrants, Piper Jaffray Warrants, or ATIO Options prior to the
Effective Time).


                                      A-5
<PAGE>

   2.4 Authority of ATIO. ATIO has full right, authority and power to enter
into this Agreement and each agreement, document and instrument to be executed
and delivered by ATIO pursuant to this Agreement and to carry out the
transactions contemplated hereby. The execution, delivery and performance by
ATIO of this Agreement and of each such other agreement, document and
instrument have been duly authorized by the Board of Directors and Stockholders
of ATIO and no other action on the part of ATIO or its Stockholders or
otherwise will be required in connection therewith. This Agreement and each
agreement, document and instrument executed and delivered by ATIO pursuant to
this Agreement constitutes, or when executed and delivered will constitute,
valid and binding obligations of ATIO enforceable in accordance with their
terms except (i) as to the effect, if any, of applicable bankruptcy and other
similar laws affecting the rights of creditors generally and (ii) the remedy of
specific performance and injunctive relief may be subject to equitable defenses
and to the discretion of the court before which such proceeding therefor may be
brought; provided, however, that the Merger will not be effective until the
Articles of Merger are filed with the Minnesota Secretary of State and the
Certificate of Merger is filed with Delaware Secretary of State. The execution,
delivery and performance by ATIO of this Agreement and of each such agreement,
document and instrument:

     (i) do not and will not violate any provision of the Articles of
  Incorporation or By-laws of ATIO except for any such violations that are
  not, individually or in the aggregate reasonably likely to have a material
  adverse effect;

     (ii) do not and will not violate any laws of the United States, or any
  state or other jurisdiction (domestic or foreign) applicable to ATIO or
  require ATIO to obtain any approval, consent or waiver of, or make any
  filing with, any person or entity (governmental or otherwise) that has not
  been obtained or made except for the filing of the Articles of Merger with
  the Minnesota Secretary of State and the Certificate of Merger with the
  Delaware Secretary of State, and the filing of appropriate documents with
  the relevant authorities of all states and foreign jurisdictions in which
  ATIO is qualified to do business, if any; and

     (iii) except as described on Schedule 2.4 hereto, do not and will not
  result in a breach of, constitute a default under, accelerate any
  obligation under, or give rise to a right of termination of any indenture
  or loan or credit agreement or any other agreement, contract, instrument,
  mortgage, lien, lease, permit, authorization, order, writ, judgment,
  injunction, decree, determination or arbitration award to which ATIO is a
  party or by which the property of ATIO is bound or affected, or result in
  the creation or imposition of any mortgage, pledge, lien, security interest
  or other charge or encumbrance on any of the assets or property of ATIO or
  on the ATIO Shares and which is material to the business or financial
  condition of ATIO.

   2.5 Real and Personal Property. (a) Owned Real Property. ATIO does not own
any real property.

   (b) Leased Real Property. All of the real property leased by ATIO, as tenant
or lessee, is identified on Schedule 2.5(b) hereto (collectively referred to
herein as the "Leased Real Property"). ATIO hereby makes the following
representations and warranties with respect to the Leased Real Property:

     (i) ATIO holds a good, valid and enforceable leasehold interest in the
  Leased Real Property;

     (ii) There are no material defects in the physical condition of any
  improvements constituting a part of the Leased Real Property, including,
  without limitation, structural elements, mechanical systems, roofs or
  parking and loading areas, and all of such improvements are in good
  operating condition and repair (other than normal wear and tear);

     (iii) The copies of the leases (the "Leases") for the Leased Real
  Property delivered by ATIO to Buyer are complete, accurate, true and
  correct;

     (iv) The Leases are in full force and effect and have not been modified,
  amended, or altered, in writing or otherwise;

     (v) All material obligations of the landlord or lessor under the Leases
  which have accrued have been performed, and to the knowledge of ATIO and
  the Stockholders, no landlord or lessor is in default under any Lease; and


                                      A-6
<PAGE>

     (vi) All material obligations of ATIO under the Leases which have
  accrued have been performed, and ATIO is not in default under the Leases,
  and no circumstance presently exists which, with notice or the passage of
  time, or both, would give rise to a default by ATIO.

   (c) Personal Property. A list of ATIO's fixtures, machinery, equipment and
other tangible personal property as of August 31, 1999 (other than personal
property individually valued at less than $1,000) is contained on Schedule
2.5(c) hereto. Except as described on Schedule 2.5(c) ATIO has good and
marketable title to all of its personal property. Except as disclosed on
Schedule 2.5(c), none of such personal property or assets is subject to any
mortgage, pledge, lien, conditional sale agreement, security agreement,
encumbrance or other charge. All material leasehold improvements, furnishings,
machinery, equipment and other tangible personal property of ATIO are in good
repair (normal wear and tear excepted), and substantially comply with all
applicable laws, ordinances and regulations, and such machinery and equipment
and other tangible personal property is in good working order (normal wear and
tear excepted).

   2.6 Financial Statements. (a) ATIO has delivered to Buyer the following
financial statements, copies of which are attached hereto as Schedule 2.6:

     (i) Balance sheets of ATIO at December 31, 1998 (the "Base Balance
  Sheet") and December 31, 1997 and statements of operations and cash flows
  for the years then ended, audited by Pricewaterhouse Coopers and Grant
  Thornton, respectively.

     (ii) An unaudited balance sheet of ATIO at September 30, 1999 and
  statements of operations and cash flows for the nine-month period then
  ended, certified by the President of ATIO.

Except as set forth on Schedule 2.6 hereto, said financial statements have been
prepared in accordance with generally accepted accounting principles applied
consistently during the periods covered thereby, are complete and correct in
all material respects, and present fairly in all material respects the
financial condition of ATIO at the dates of said statements and the results of
its operations and its cash flows for the periods covered thereby.

   (b) Except as reflected on the Base Balance Sheet or Schedule 2.6 hereto, as
of the date of the Base Balance Sheet, ATIO had no material liabilities of any
nature, whether accrued, absolute, contingent or otherwise, required by
generally accepted accounting principles to be reflected thereon or in the
notes thereto (including, without limitation, liabilities as guarantor or
otherwise with respect to obligations of others, or potential liabilities for
taxes due or then accrued or to become due or contingent or liabilities
relating to activities of ATIO or the conduct of its business prior to the date
of the Base Balance Sheet regardless of whether claims in respect thereof had
been asserted as of such date).

   (c) Except as reflected on the Base Balance Sheet, the unaudited balance
sheet at September 30, 1999, or Schedule 2.6 hereto, as of the date hereof and
as of the Closing, ATIO does not and will not have material liabilities of any
nature, whether accrued, absolute, contingent or otherwise, which would be
required by generally accepted accounting principles to be reflected thereon
(including, without limitation, liabilities as guarantor or otherwise with
respect to obligations or others, or liabilities for taxes due or then accrued
or to become due or contingent potential liabilities relating to activities of
ATIO or the conduct of its business prior to the date hereof or the Closing,
regardless of whether claims in respect thereof had been asserted as of such
date).

   2.7 Taxes. (a) Except as disclosed on Schedule 2.7 hereto, ATIO has paid or
caused to be paid all federal, state, local, foreign and other taxes,
including, without limitation, income taxes, estimated taxes, alternative
minimum taxes, excise taxes, value-added taxes, gross receipts taxes, franchise
taxes, capital stock taxes, employment and payroll-related taxes, withholding
taxes, stamp taxes, transfer taxes, windfall profit taxes, environmental taxes
and property taxes, whether or not measured in whole or in part by net income,
and all deficiencies, or other additions to tax, interest, fines and penalties
owed by it (collectively, "Taxes"), required to be paid by ATIO through the
date hereof whether disputed or not.


                                      A-7
<PAGE>

   (b) ATIO has in accordance with applicable law filed all federal, state,
local and foreign tax returns required to be filed by it through the date
hereof, and all such returns correctly and accurately, in all material
respects, set forth the amount of any Taxes relating to the applicable period.
A list of all federal, state, local and foreign income tax returns filed with
respect to ATIO for its most recent three completed fiscal years are set forth
on Schedule 2.7 hereto, and said Schedule indicates those returns that have
been audited or currently are the subject of an audit. ATIO has delivered to
Buyer correct and complete copies of all federal, state, local and foreign
income tax returns listed on said Schedule, and of all examination reports and
statements of deficiencies assessed against or agreed to by ATIO with respect
to said returns. ATIO is not required to file a foreign tax return, or to pay
any Stockholders' foreign taxes, in connection with the business conducted by
ATIO.

   (c) Neither the Internal Revenue Service nor any other governmental
authority is now asserting or, to the knowledge of ATIO and the Stockholders,
threatening to assert against ATIO any deficiency or claim for additional
Taxes. No claim has ever been made by an authority in a jurisdiction where ATIO
does not file reports and returns that ATIO is or may be subject to taxation by
that jurisdiction. There are no security interests on any of the assets of ATIO
that arose in connection with any failure (or alleged failure) to pay any
Taxes. ATIO has not entered into a closing agreement pursuant to Section 7121
of the Code.

   (d) There has not been any audit of any tax return filed by ATIO for any tax
period, no audit of any tax return of ATIO is in progress, and ATIO has not
been notified by any tax authority that any such audit is contemplated or
pending. No extension of time with respect to any date on which a tax return
was or is to be filed by ATIO is in force, and no waiver or agreement by ATIO
is in force for the extension of time for the assessment or payment of any
Taxes.

   (e) ATIO has no liability for unpaid Taxes because it once was a member of
an "affiliated group" (as defined in Section 1504(a) of the Code). ATIO does
not own, nor has it ever owned, a direct or indirect interest in any trust,
partnership, corporation or other entity, nor is any such interest necessary to
conduct the business of ATIO.

   (f) ATIO is not a "foreign person" within the meaning of Section 1445 of the
Code and Treasury Regulations Section 1.1445-2.

   (g) ATIO is not a party to any contract, agreement, plan or arrangement
that, individually or collectively, could give rise to any payment that would
not be deductible by reason of Section 162 or 280G of the Code.

   (h) For purposes of this Agreement, all references to Sections of the Code
shall include any predecessor provisions to such Sections.

   2.8 Accounts Receivable; Accounts Payable. Except as set forth on Schedule
2.8 hereto all of the accounts receivable of ATIO are valid and enforceable
claims, are subject to no set-off or counterclaim, and, to the knowledge of
ATIO, are fully collectable in the normal course of business, after deducting
the allowance for doubtful accounts stated in the Base Balance Sheet in
accordance with generally accepted accounting principles. Except as set forth
on Schedule 2.8 hereto, all accounts payable and notes payable of ATIO arose in
bona fide arms' length transactions in the ordinary course of business and no
such account payable or note payable is delinquent by more than sixty (60) days
in its payment.

   2.9 Absence of Certain Changes. Except as set forth on Schedule 2.9 hereto
(since September 30, 1999, there has been):

     (i) except for matters relating to the extension by Buyer and Venturian
  of loans in the aggregate amount of $600,000, no change in the condition,
  financial or otherwise, of ATIO or in the assets, liabilities, properties,
  business or prospects of ATIO which change by itself or in conjunction with
  all other such changes, whether or not arising in the ordinary course of
  business, has had or is reasonably likely to have a material adverse effect
  on ATIO;

     (ii) except for liens granted to Buyer and Venturian in connection with
  the loans described in Section 2.9(i) in the aggregate amount of $600,000,
  the lien granted to Convergent, and the lien for State of Minnesota taxes
  previously disclosed to Buyer, no mortgage, encumbrance or lien placed on
  any of the properties of ATIO;

                                      A-8
<PAGE>

     (iii) no declaration, setting aside or payment of any dividend or other
  distribution with respect to, or any direct or indirect redemption or
  acquisition of, any shares of any capital stock of any class of ATIO or any
  options, warrants or other rights to acquire, or securities convertible
  into or exchangeable for, any such capital stock;

     (iv) no waiver of any valuable right of, or cancellation of any material
  debt or claim held by, ATIO;

     (v) no incurrence or modification of any material contingent liability
  with respect to the obligations of others, and no incurrence or
  modification of any other material contingent or fixed obligations or
  liabilities except in the ordinary course of business consistent with past
  practice;

     (vi) no material increase, direct or indirect, in the compensation paid
  or payable to any officer, director, employee, agent or stockholder other
  than salary increases in the ordinary course of business consistent with
  past practice of ATIO;

     (vii) no material loss, destruction or damage to any property of ATIO,
  whether or not insured;

     (viii) no notice of any claim of unfair labor practices or labor dispute
  or work stoppage involving ATIO and no change in senior personnel of ATIO;

     (ix) no acquisition or disposition of any material assets (or any
  contract or arrangement therefor) nor any other transaction by ATIO other
  than in the ordinary course of business;

     (x) no payment or discharge of a material lien or liability of ATIO
  which is not recorded in the latest balance sheet included on Schedule 2.6
  hereto;

     (xi) no employment agreements entered into by ATIO and no obligation or
  liability incurred by ATIO to any of its officers, directors, stockholder
  or employees, or any loans or advances made by ATIO to any of its officers,
  directors, stockholders or employees, except normal compensation and
  expense allowances payable to officers or employees;

     (xii) no material change in accounting methods or practices, credit
  practices or collection policies used by ATIO; and

     (xiii) no agreement or understanding whether in writing or otherwise,
  that would result in any of the transactions or events or require ATIO to
  take any of the actions specified in Sections (i) through (xii) above.

   2.10 Ordinary Course. Since the date of the Base Balance Sheet, ATIO has, in
all material respects, conducted its business and operations only in the
ordinary course and consistently with its prior practices, except that ATIO has
been without adequate funding for an extended period of time and, as a result,
has had to negotiate with creditors and obligors to establish modified and
extended terms on a regular and ongoing basis.

   2.11 Banking Relations. All of the arrangements which ATIO has with any
banking institution are completely and accurately described on Schedule 2.11
hereto, indicating with respect to each of such arrangements the type of
arrangement maintained (such as checking account, borrowing arrangements, safe
deposit box, etc.) and the person or persons authorized in respect thereof.

   2.12 Intellectual Property. (a) Except as set forth on Schedule 2.12 hereto
or as described in Section 7.5 hereof, and except for such business operations
software and software development tools licensed by ATIO under commodity
license agreements and used in ATIO's day to day business operations ("Business
Software"), ATIO owns the exclusive right, title and interest in and to all
patents, copyrights, technology, software, software tools, know-how, processes,
trade secrets, trademarks, service marks, trade names and other proprietary
rights used in the conduct of ATIO's business as conducted to the date hereof
or necessary for the conduct of its business as contemplated, free and clear of
all liens, claims and encumbrances (including without limitation distribution
rights) (all of which are referred to as "Proprietary Rights"). The foregoing
representation as it relates to Third Party Technology (as hereinafter defined)
is limited to ATIO's interest pursuant to the Third Party Licenses (as
hereinafter defined), all of which are valid and enforceable and in full force
and effect and which grant ATIO such right to Third Party Technology as are
employed in or necessary to the business of ATIO as conducted or currently
proposed to be conducted prior to the Closing Date.

                                      A-9
<PAGE>

   (b) Schedule 2.12 hereto contains an accurate and complete description of
(i) all patents, trademarks (with separate listings of registered and
unregistered trademarks), trade names, and registered copyrights in or related
to products owned by ATIO (the "ATIO Products"), all applications and
registration statements therefor, and a list of all licenses and other
agreements relating thereto, and (ii) a list of all licenses and other
agreements currently in effect with third parties (the "Third Party Licenses")
relating to any software, technology, know-how, or processes that ATIO is
licensed or otherwise authorized by such third parties to use, market,
distribute or incorporate into its products or processes (such software,
technology, know-how and processes are collectively referred to as the "Third
Party Technology"). All of ATIO's trademark or trade name registrations related
to the ATIO Products and all of ATIO's copyrights in any of the ATIO Products
are valid and in full force and effect; and consummation of the transactions
contemplate hereby will not alter or impair any such rights. There is no
material default by any party to any Third Party License and all of ATIO's
rights thereunder are freely assignable. To the knowledge of ATIO and the
Stockholders, the licensors under such Third Party Licenses have and had all
requisite power and authority to grant the rights purported to be conferred
thereby. True and complete copies of such Third Party Licenses, and any
amendments thereto, have been provided to Buyer.

   (c) No claims have been asserted against ATIO or any of the Stockholders
(and neither ATIO nor any of the Stockholders is aware of any claims which are
likely to be asserted against ATIO) by any person challenging the use or
distribution by ATIO of any patents, trademarks, trade names, copyrights, trade
secrets, software, technology, know-how or processes utilized by it (including,
without limitation, the Third Party Technology) or challenging or questioning
the validity or effectiveness of any license or agreement relating thereto
(including, without limitation, the Third Party Licenses). To the knowledge of
ATIO and the Stockholders, there is no valid basis for any claim of the type
specified in the immediately preceding sentence which could in any way relate
to or interfere with the continued enhancement and exploitation by ATIO of any
of the ATIO Products. To the knowledge of ATIO, none of the ATIO Products nor
the use of any patents, trademarks, trade names, copyrights, software,
technology, know-how or processes by ATIO in its current business infringes on
the rights of, constitutes misappropriation of, or in any way involves unfair
competition with respect to, any proprietary information or intangible property
right of any third person or entity, including without limitation any trade
secret, copyright, trademark or trade name or patent.

   (d) All licenses or other agreements currently in effect pursuant to which
ATIO has granted rights to others in Proprietary Rights owned or licensed by
ATIO are listed on Schedule 2.12 hereto. All of such licenses or agreements are
in full force and effect, there is no default by any party thereto and the
transaction contemplated hereby will not constitute a violation by ATIO of such
licenses and agreements. Representative copies of all such licenses or other
agreements, and any amendments thereto, have been provided to Buyer. Except as
set forth on Schedule 2.12 hereto, ATIO has not granted any third party any
right to manufacture, reproduce, distribute, market or exploit any of the ATIO
Products or any adaptations, translations or derivative works based on the ATIO
Products or any portion thereof. Except with respect to the rights of third
parties to the Third Party Technology, no third party has any right to
manufacture, reproduce, distribute, market or exploit any underlying works or
materials of which any of the ATIO Products are a "derivative work" as that
term is defined in the United States Copyright Act, Title 17, U.S.C. Section
101.

   (e) Except as set forth on Schedule 2.12 hereto, to the knowledge of ATIO,
the Stockholders, and Atio (Pty) no designs, drawings, specifications, source
code, object code, documentation, flow charts or diagrams incorporating,
embodying or reflecting any of the ATIO Products at any stage of their
development (the "ATIO Components") were written, developed, created or
discovered in whole or in part by any employee of ATIO with the assistance of
any third party or entity or were created by third parties (including, without
limitation, each of the Stockholders) who have not assigned ownership of their
rights to ATIO. ATIO has at all times used commercially reasonable efforts to
treat the ATIO Products and the ATIO Components as containing trade secrets and
have not disclosed or otherwise dealt with such items in such a manner as to
cause the loss of such trade secrets by release into the public domain.


                                      A-10
<PAGE>

   (f) To the knowledge of ATIO and the Stockholders, no employee of ATIO is in
violation of any term of any employment contract, patent disclosure agreement
or any other contract or agreement relating to the relationship of any such
employee with ATIO or, to the knowledge of ATIO and the Stockholders, any other
party, including, without limitation, any previous employer, because of the
nature of the business conducted by ATIO or proposed to be conducted by ATIO.

   (g) Each person presently or previously employed by ATIO (including
independent contractors, if any) in a research and development or other
technical position has executed a confidentiality and non-disclosure agreement
previously provided to Buyer or its representatives. Such confidentiality and
non-disclosure agreements constitute valid and binding obligations of ATIO and
such person, enforceable in accordance with their respective terms. To the
knowledge of ATIO and the Stockholders, neither the execution or delivery of
such agreements, nor the carrying on of ATIO's business by such persons as
employees, nor the conduct of ATIO's business as currently anticipated, will
conflict with or result in a breach of the terms, conditions or provisions of
or constitute a default under any contract, covenant or instrument currently in
effect under which any of such persons is obligated. ATIO is not knowingly
making unauthorized use of any confidential information or trade secrets of any
person, including, without limitation, any former employer or any past or
present employee of ATIO. Neither ATIO nor, to the knowledge of ATIO and the
Stockholders, any of ATIO's employees have any agreements or arrangements with
any persons other than ATIO related to confidential information or trade
secrets of such persons or restricting any such employee's ability to engage in
business activities of any nature.

   (h) No product liability or warranty claims which individually or in the
aggregate could exceed Five Thousand Dollars ($5,000) have been communicated to
or threatened against ATIO nor, to the knowledge of ATIO and the Stockholders,
is there any specific situation, set of facts or occurrence that provides a
basis for such claim.

   2.13 Contracts. Except for contracts, commitments, plans, agreements and
licenses (true and complete copies of which have been delivered to Buyer)
described on Schedule 2.13 hereto, ATIO is not a party to or subject to:

     (i) any plan or contract providing for bonuses, pensions, options, stock
  purchases, deferred compensation, retirement payments, profit sharing,
  collective bargaining or the like, or any contract or agreement with any
  labor union;

     (ii) any employment contract or contract for personal services;

     (iii) any contract or agreement relating to capital expenditures in
  excess of $10,000 per annum;

     (iv) any other contracts or agreements creating any obligations of ATIO
  of $25,000 or more per annum with respect to any such contract or agreement
  not specifically disclosed elsewhere in this Agreement;

     (v) any contract or agreement which by its terms does not terminate or
  is not terminable without penalty by such entity or any successor or
  assignee on 30 days written notice within six months after the Closing
  Date;

     (vi) any material contract not made in the ordinary course of business;

     (vii) any contract currently in effect containing covenants limiting the
  freedom of ATIO to compete in any line of business or with any person or
  entity;

     (viii) any material license agreement (as licensor or licensee);

     (ix) any material indenture, lien, mortgage, promissory note, loan
  agreement, guaranty or other agreement or commitment for the borrowing of
  money; or

     (x) any contract or agreement with any officer, employee, director or
  stockholder of ATIO or with any persons or organizations controlled by or
  affiliated with any of them.

ATIO is not in default in any material respect under any such contracts,
commitments, plans, agreements or licenses described in said Schedule, and ATIO
has no knowledge of conditions or facts which with notice or passage of time,
or both, would constitute a default.

                                      A-11
<PAGE>

   2.14 Litigation. There is no litigation or governmental or administrative
proceeding or investigation pending or, to the knowledge of ATIO and the
Stockholders, threatened against ATIO or any affiliate of ATIO which may have a
material adverse effect on ATIO's properties, assets, financial condition or
business or which would prevent or hinder the consummation of the transactions
contemplated by this Agreement.

   2.15 Compliance with Laws. To the knowledge of ATIO and the Stockholders,
ATIO is in compliance with all applicable statutes, ordinances, orders,
judgments, decrees and rules and regulations promulgated by any federal, state,
municipal or other governmental authority which apply to ATIO or to the conduct
of its business except where the failure of ATIO to so comply would not have a
material adverse effect on ATIO, and ATIO has not received notice of a
violation or alleged violation of any such statue, ordinance, order, rule or
regulation.

   2.16 Insurance. The only insurance policies maintained by ATIO are disclosed
on Schedule 2.16 hereto, and such insurance policies are in full force and
effect, all premiums with respect thereto (with existing premium costs as
disclosed on Schedule 2.16) are currently paid, and ATIO is in compliance in
all material respects with the terms thereof. Said insurance is adequate for
the business engaged in by ATIO and is sufficient for compliance by ATIO with
all requirements of law and all agreements and leases to which ATIO is a party.

   2.17 Warranty or Other Claims. Except as described on Schedule 2.12(h),
there are no existing or, to the knowledge of ATIO, threatened product
liability, warranty or other similar claims, or any facts upon which a material
claim of such nature could be based, against ATIO for products or services
which are defective or fail to meet any product or service warranties. No claim
has been asserted against ATIO for renegotiation or price redetermination of
any business transaction, and, to the knowledge of ATIO and the Stockholders,
there are no facts upon which any such claim could reasonably be based.

   2.18 Powers of Attorney. ATIO has not granted powers of attorney which are
presently outstanding.

   2.19 Finder's Fee. ATIO has not incurred or become liable for any broker's
commission or finder's fee relating to or in connection with the transactions
contemplated by this Agreement.

   2.20 Corporate Records; Copies of Documents. The corporate record books of
ATIO accurately record, in all material respects, all corporate action taken by
its stockholders and board of directors. The copies of the corporate records of
ATIO, as delivered to Buyer or Buyer's counsel pursuant to this Agreement, are
true and complete copies of the originals of such documents. ATIO has made
available for inspection and copying by Buyer and its counsel complete and
correct copies of all documents referred to in this Section or in the Schedules
delivered to Buyer pursuant to this Agreement.

   2.21 Employees; Labor Relations. As of the date hereof, ATIO employs the
number of full-time and part-time employees as are indicated on Schedule 2.21
hereto. Except as indicated on Schedule 2.21, ATIO is not delinquent in
payments to any of its employees or agents for any wages, salaries,
commissions, bonuses or other direct compensation for any services performed
for it to the date hereof or amounts required to be reimbursed to such
employees. There are no charges of employment discrimination or unfair labor
practices or strikes, slowdowns, stoppages of work, or any other concerted
interference with normal operations existing, pending or, to the knowledge of
ATIO and the Stockholders, threatened against or involving ATIO, or facts known
which may reasonably be expected to result in any such action. No question
concerning representation exists respecting any group of employees of ATIO.
Except as set forth on Schedule 2.21 hereto, there are no claims or charges
relating to or alleging violations of any federal, state or local employment
laws, including without limitation laws relating to discrimination, harassment,
family leave or wage payments, existing, pending or, to the knowledge of ATIO,
threatened against ATIO nor, to the knowledge of ATIO, has there occurred any
event or does there exist any condition on the basis of which any such claim is
reasonably likely to be asserted. ATIO is, and at all times since its inception
has been, in compliance in all material respects with the requirements of the
Immigration Reform Control Act of 1986 except as indicated on Schedule 2.21.
There

                                      A-12
<PAGE>

are no changes (including, without limitation, resignations) pending or, to the
knowledge of ATIO, threatened with respect to the senior management or key
supervisory personnel of ATIO nor has ATIO received any notice or information
concerning any prospective change with respect to the senior management or key
supervisory personnel of ATIO.

   2.22 Employee Benefit Programs. (a) Schedule 2.22 hereto sets forth a list
of every Employee Program (as defined below) that has been maintained (as such
term is further defined below) by ATIO at any time during the three-year period
ending on the date hereof.

   (b) Each Employee Program which has been maintained by ATIO and which has at
any time been intended to qualify under Section 401(a) or 501(c)(9) of the
Code, has received a favorable determination or approval letter from the
Internal Revenue Service ("IRS") regarding its qualification under such section
and has, in fact, been qualified under the applicable section of the Code from
the effective date of such Employee Program through and including the Closing
(or, if earlier, the date that all of such Employee Program's assets were
distributed). Except for amendments made to the Code for which the remedial
amendment period has not expired, no event or omission has occurred which would
cause any such Employee Program to lose its qualification under the applicable
Code section.

   (c) Except as set forth on Schedule 2.22, to the knowledge of ATIO and the
Stockholders, there has not been any failure of any party to comply with any
laws applicable with respect to the Employee Programs that have been maintained
by ATIO which is reasonably likely to have a material adverse effect on ATIO.
With respect to any Employee Program now or heretofore maintained by ATIO,
there has occurred no "prohibited transaction," as defined in Section 406 of
the Employee Retirement Income Security Act of 1974, as amended ("ERISA"), or
Section 4975 of the Code, or breach of any duty under ERISA or other applicable
law (including, without limitation, any health care continuation requirements
or any other tax law requirements, or conditions to favorable tax treatment,
applicable to such plan), which could result, directly or indirectly (including
without limitation through any obligation of indemnification or contribution),
in any taxes, penalties or other liability to ATIO or any Affiliate (as defined
below) which is reasonably likely to have a material adverse effect on ATIO. No
litigation, arbitration, or governmental administrative proceeding (or
investigation) or other proceeding (other than those relating to routine claims
for benefits) is pending or, to the knowledge of ATIO, threatened with respect
to any such Employee Program which is reasonably likely to have a material
adverse effect on ATIO.

   (d) ATIO has not incurred any liability under Title IV of ERISA which will
not be paid in full prior to the Closing. There has been no "accumulated
funding deficiency" (whether or not waived) with respect to any Employee
Program ever maintained by ATIO and subject to Code Section 412 or ERISA
Section 302. With respect to any Employee Program maintained by ATIO and
subject to Title IV of ERISA, there has been no (nor will be any as a result of
the transaction contemplated by this Agreement) (i) "reportable event," within
the meaning of ERISA Section 4043, or the regulations thereunder (for which
notice the notice requirement is not waived under 29 C.F.R. Part 2615) and (ii)
event or condition which presents a material risk of plan termination or any
other event that may cause ATIO to incur liability or have a lien imposed on
its assets under Title IV of ERISA. All payments and/or contributions required
to have been made (under the provisions of any agreements or other governing
documents or applicable law) with respect to all Employee Programs heretofore
maintained by ATIO, for all periods prior to the Closing, either have been made
or have been accrued (and all such unpaid but accrued amounts are described on
Schedule 2.22 hereto). Except as described on Schedule 2.22 hereto, no Employee
Program maintained by ATIO and subject to Title IV of ERISA (other than a
Multiemployer Plan) has any "unfunded benefit liabilities" within the meaning
of ERISA Section 4001(a)(18), as of the Closing Date. ATIO has never maintained
a Multiemployer Plan. Except as described on Schedule 2.22 hereto, none of the
Employee Programs ever maintained by ATIO has ever provided health care or any
other non-pension benefits to any employees after their employment was
terminated (other than as required by part 6 of subtitle B of title I of ERISA
or the Minnesota Extension of Coverage law, as applicable) or has ever promised
to provide such post-termination benefits.


                                      A-13
<PAGE>

   (e) With respect to each Employee Program maintained by ATIO within the
three years preceding the date hereof, complete and correct copies of the
following documents (if applicable to such Employee Program) have previously
been delivered to Buyer: (i) all documents embodying or governing such Employee
Program, and any funding medium for the Employee Program (including, without
limitation, trust agreements) as they may have been amended to the date hereof;
(ii) the most recent IRS determination or approval letter with respect to such
Employee Program under Code Section 401 or 501(c)(9), and any applications for
determination or approval subsequently filed with the IRS; (iii) the three most
recently filed IRS Forms 5500, with all applicable schedules attached thereto;
(iv) the summary plan description for such Employee Program (or other
descriptions of such Employee Program provided to employees) and all
modifications thereto; (v) any insurance policy (including any fiduciary
liability insurance policy) related to such Employee Program; (vi) any
documents evidencing any loan to an Employee Program that is a leveraged
employee stock ownership plan; and (vii) with respect to any Multiemployer
Plan, any participation or adoption agreement relating to ATIO's participation
in or contributions under such plan;

   (f) For purposes of this Section 2.22:

     (i) "Employee Program" means (A) all employee benefit plans within the
  meaning of ERISA Section 3(3), including, but not limited to, multiple
  employer welfare arrangements (within the meaning of ERISA Section 3(40)),
  plans to which more than one unaffiliated employer contributes and employee
  benefit plans (such as foreign or excess benefit plans) which are not
  subject to ERISA; and (B) all stock option plans, bonus or incentive award
  plans, severance pay policies or agreements, deferred compensation
  agreements, supplemental income arrangements, vacation plans, and all other
  employee benefit plans, agreements and arrangements not described in (A)
  above. In the case of an Employee Program funded through an organization
  described in Code Section 501(c)(9), each reference to such Employee
  Program shall include a reference to such organization;

     (ii) an entity "maintains" an Employee Program if such entity sponsors,
  contributes to or provides (or has promised to provide) benefits under such
  Employee Program, or has any obligation (by agreement or under applicable
  law) to contribute to or provide benefits under such Employee Program, or
  if such Employee Program provides benefits to or otherwise covers employees
  of such entity (or their spouses, dependents or beneficiaries);

     (iii) An entity is an "Affiliate" of ATIO for purposes of Section 2.23
  if it would have ever been considered a single employer with ATIO under
  ERISA Section 4001(b) or part of the same "controlled group" as ATIO for
  purposes of ERISA Section 302(d)(8)(C); and

     (iv) "Multiemployer Plan" means a (pension or non-pension) employee
  benefit plan to which more than one employer contributes and which is
  maintained pursuant to one or more collective bargaining agreements.

   2.23 Hazardous Waste, Etc. (a) To the knowledge of ATIO, (i) ATIO has never
generated, transported, used, stored, treated, disposed of, or managed any
Hazardous Waste (as defined below); (ii) to the knowledge of ATIO, no Hazardous
Material (as defined below) has ever been or is threatened to be spilled,
released, or disposed of at any site presently or formerly operated, leased, or
used by ATIO, or has ever come to be located in the soil or groundwater at any
such site as a result of ATIO's operations; (iii) no Hazardous Material has
ever been transported from any site presently or formerly operated, leased, or
used by for treatment, storage, or disposal at any other place; (iv) ATIO does
not presently own, operate, lease, or use, and has not previously operated,
leased, or used any site on which underground storage tanks are or were
located; and (v) no lien has ever been imposed by any governmental agency on
any property, facility, machinery, or equipment owned, operated, leased, or
used by ATIO in connection with the presence of any Hazardous Material.

   (To the knowledge of ATIO and the Stockholders, (i) ATIO does not have any
liability under, nor has ATIO violated in any material respect, any
Environmental Law (as defined below), which liability or violation is
reasonably likely to have a material adverse effect on ATIO; (ii) ATIO, any
property owned, operated, leased, or used by it, and any facilities and
operations thereon are presently in compliance in all material respects with
all applicable Environmental Laws; and (iii) ATIO has not entered into or been
subject to any judgment,

                                      A-14
<PAGE>

consent decree, compliance order, or administrative order with respect to any
environmental or health and safety matter or received any request for
information, notice, demand letter, administrative inquiry, or formal or
informal complaint or claim with respect to any environmental or health and
safety matter or the enforcement of any Environmental Law.

   (c) To the knowledge of ATIO and the Stockholders, no site owned, operated,
leased or used by ATIO contains any asbestos or asbestos-containing material,
any polychlorinated biphenyls (PCBs) or equipment containing PCBs, or any urea
formaldehyde foam insulation.

   (d) ATIO has provided to Buyer copies of all documents, records, and
information known and available to it concerning any environmental or health
and safety matter relevant to ATIO, whether generated by ATIO or others,
including, without limitation, environmental audits, environmental risk
assessments, site assessments, documentation regarding off-site disposal of
Hazardous Materials, spill control plans, and reports, correspondence, permits,
licenses, approvals, consents and other authorizations related to environmental
or health and safety matters issued by any governmental agency.

   (e) For purposes of this Section 2.23, (i) "Hazardous Material" shall mean
and include any hazardous waste, hazardous material, hazardous substance,
petroleum product, oil, toxic substance, pollutant, or contaminant, as defined
or regulated under any Environmental Law, or any other substance which may pose
a threat to the environment or to human health or safety; (ii) "Hazardous
Waste" shall mean and include any hazardous waste as defined or regulated under
any Environmental Law (including, without limitation, medical waste); (iii)
"Environmental Law" shall mean any environmental or health and safety-related
law, regulation, rule, ordinance, or by law at the federal, state, or local
level, whether existing as of the date hereof, previously enforced, or
subsequently enacted; and (iv) "ATIO" shall mean and include ATIO, any
predecessor and all other entities for whose conduct ATIO is or may be held
responsible under any Environmental Law.

   2.24 Year 2000 Compliance. Except as disclosed in Schedule 2.24 hereto, all
computer software products, which are critical in regards to business
operations, that are owned by ATIO, exclusively licensed to ATIO, licensed,
sold or otherwise distributed to others by ATIO when operated properly
("Software") are Year 2000 Compliant. As used herein, "Year 2000 Compliant"
shall mean with respect to any such Software, the ability of such Software to
perform the following date-related functions: (i) consistently handle date
information before, during and after January 1, 2000, including, but not
limited to, accepting date input, providing date output and performing
calculations on dates or portions of dates; (ii) function accurately in
accordance with the documentation relating to the applicable software and
without interruption before, during and after January 1, 2000, without any
change in operations associated with the transition to a new century and the
presence of a leap-year; (iii) respond to two-digit date input in a way that
resolves any ambiguity as to the century; and (iv) store and provide output of
date information in ways that are unambiguous as to century.

   2.25 List of Certain Employees; Customers, Suppliers and Vendors. Schedule
2.25 hereto contains a list of all officers, managers, employees, consultants,
independent contractors, brokers and sales persons of ATIO who, individually,
have received compensation for the fiscal year ended December 31, 1998, or for
the nine month period ended September 30, 1999 in excess of $40,000, including
the current job title and aggregate annual compensation of each such
individual. Schedule 2.25 hereto sets forth a list of all customers, suppliers
and vendors of ATIO with whom during the fiscal year ended December 31, 1998,
or during the nine month period ended September 30, 1999, ATIO received or made
payments aggregating $25,000 or more, showing, with respect to each, the name,
address and dollar volume involved. Except as set forth on Schedule 2.25
hereto, since December 31, 1998, no material customer, supplier or vendor has
canceled or otherwise terminated or reduced its business with ATIO or
materially and adversely modified its relationship with ATIO nor, to the
knowledge of ATIO or the Stockholders, does any such customer, supplier or
vendor have any plan or intention to do so.

   2.26 Transactions with Affiliates. Except as set forth on Schedule 2.26
hereto, there are no material loans, leases or other continuing transactions
between ATIO and any present or former stockholder, director or officer of
ATIO, or, to the knowledge of ATIO and the Stockholders, any member of such
officer's, director's or

                                      A-15
<PAGE>

stockholder's immediate family, or any person controlled by such officer,
director or stockholder or his or her immediate family. Except as set forth on
Schedule 2.26 hereto, no stockholder, director or officer of ATIO nor, to the
knowledge of ATIO or the Stockholders, any of their respective spouses or
family members, owns directly or indirectly on an individual or joint basis any
material interest in, or serves as an officer or director or in another similar
capacity of, any competitor or supplier of ATIO, or any organization which has
a material contract or arrangement with ATIO.

   2.27 Disclosure. The representations, warranties and statements contained in
this Agreement and in the certificates, exhibits and schedules delivered to
Buyer when taken together do not contain any untrue statement of a material
fact, and, do not omit to state a material fact required to be stated therein
or necessary in order to make such representations, warranties or statements
not misleading in light of the circumstances under which they were made.

        ARTICLE III--REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDERS

   Each Stockholder hereby represents and warrants to the Buyer that the
representations and warranties set forth in the Letter of Transmittal in the
form of Exhibit 1.2 hereto are true and correct with respect to the
Stockholder, and, as a condition to the issuance of the Buyer Certificates to
such Stockholder, each Stockholder covenants to sign and deliver to Buyer a
Letter of Transmittal in the form of Exhibit 1.2 and to restate to Buyer the
representations set forth therein at the time thereof.

                         ARTICLE IV--COVENANTS OF ATIO

   From and after the date hereof until the Closing Date:

   4.1 Tax Returns. ATIO, with the approval of Buyer and in accordance with
applicable law, shall (i) promptly prepare and file on or before the due date
or any extension thereof all federal, state, local and foreign tax returns
required to be filed by ATIO with respect to taxable periods of ATIO that
include any period ending on or before the Closing Date and (ii) pay all Taxes
of ATIO attributable to periods ending on or before the Closing Date.

   4.2 Financial Position of ATIO at Closing. ATIO shall not have debt as of
the Closing Date (exclusive of accounts payable, accrued expenses and deferred
revenue, as determined in accordance with generally accepted accounting
principles), other than indebtedness of $1,350,000 to Convergent, indebtedness
to Venturian and to Buyer as described in Section 7.12, and indebtedness to
Atio International and/or Atio (Pty) for development team costs for periods
after July 31, 1999 as described in Section 7.12. All other ATIO debt owed to
Stockholders or affiliates of Stockholders shall have been converted to ATIO
Shares.

   4.3 Cooperation of ATIO. ATIO shall cooperate with all reasonable requests
of Buyer and the Buyer's counsel in connection with the consummation of the
transactions contemplated hereby.

   4.4 No Option Grants or Stock Sales. ATIO shall not grant any options or
warrants to purchase stock of ATIO, or any rights to convert debt into stock of
ATIO without Buyer's consent, or issue or agree to issue any preferred stock,
or issue or agree to issue any common stock except pursuant to warrants,
options or other conversion rights described in this Agreement or in the
Schedules hereto.

   4.5 Preservation of Business. From the date hereof through the Closing Date
ATIO shall use all reasonable efforts to preserve intact its present business
organization and preserve its regular services to, and maintain its significant
business relationships with customers, suppliers and all others having business
dealings with it in an effort to protect its goodwill and ongoing business from
being impaired in any material respect.

                                      A-16
<PAGE>

               ARTICLE V--REPRESENTATIONS AND WARRANTIES OF BUYER

   Buyer hereby represents and warrants to all other parties to the Agreement:

   5.1 Organization. Buyer is a corporation duly organized, validly existing
and in good standing under the laws of the State of Delaware with full
corporate power and authority to own or lease its properties and to conduct its
business in the manner and in the places where such properties are owned or
leased or such business is conducted by it. The copies of the Certificate of
Incorporation of Buyer as amended to date, certified by the appropriate
governmental officer, and the By-laws, as amended to date, certified by the
Secretary of Buyer, and heretofore delivered to ATIO's counsel, are complete
and correct, and no amendments (except the Certificate of Amendment) thereto
are pending. Buyer is not in violation, in any material respect, of any
provision of its Certificate of Incorporation or By-laws. Buyer is qualified to
do business in Iowa and is not required to be licensed or qualified to transact
business in any other jurisdiction.

   5.2 Authority. Buyer has full right, authority and power to enter into this
Agreement and each agreement, document and instrument to be executed and
delivered by Buyer pursuant to this Agreement and to carry out the transactions
contemplated hereby. The execution, delivery and performance by Buyer of this
Agreement and each such other agreement, document and instrument have been duly
authorized by all necessary corporate action of Buyer and no other action on
the part of Buyer is required in connection therewith except the approval of
Buyer's stockholders. This Agreement and each other agreement, document and
instrument executed and delivered by Buyer pursuant to this Agreement
constitute, or when executed and delivered will constitute, valid and binding
obligations of Buyer enforceable in accordance with their terms. The execution,
delivery and performance by Buyer of this Agreement and each such agreement,
document and instrument:

     (i) does not and will not violate any provision of the Certificate of
  Incorporation or By-Laws of Buyer;

     (ii) does not and will not violate any laws of the United States or of
  any state or any other jurisdiction applicable to Buyer or, assuming no
  breach in the representations set forth in Section 2 of Exhibit 1.2 hereof,
  require Buyer to obtain any approval, consent or waiver of, or make any
  filing with, any person or entity (governmental or otherwise) which has not
  been obtained or made other than (A) the filing of a proxy statement with
  the SEC with respect to the Meeting of stockholders of Buyer to be called
  for the purpose of approving this Agreement, the Certificate of Amendment
  and certain other matters related thereto and the receipt of the approval
  of this Agreement by Buyer's stockholders; (B) the filing of an application
  for the listing of the Buyer Common Stock on NASDAQ, and (C) the filing of
  the Certificate of Merger with the Delaware Secretary of State and the
  Articles of Merger with the Minnesota Secretary of State; and

     (iii) does not and will not result in a breach of, constitute a default
  under, accelerate any obligation under, or give rise to a right of
  termination of any indenture, loan or credit agreement, or any other
  agreement, mortgage, lease, permit, order, judgment, decree or arbitration
  award or to which Buyer is a party and which is material to the business or
  financial condition of Buyer.

   5.3 Capitalization. The authorized capital stock of Buyer consists of
2,000,000 shares of Common Stock with a par value of ten cents ($.10) per
share, of which 1,112,555 shares are duly and validly issued, outstanding,
fully paid and nonassessable as of December 15, 1999; and Buyer has granted
options to employees and directors of Buyer pursuant to Buyer's Old Stock
Option Plans as described on Schedule 5.3 hereto (the "Capital Structure of
Buyer"). Upon the filing of the Certificate of Amendment with the Delaware
Secretary of State prior to the Effective Time the authorized capital stock of
Buyer will consist of 10,000,000 shares of Common Stock with a par value of one
cent ($.01) per share.

   5.4 Financial Position of Buyer at the Closing. At the Closing, Buyer shall
have cash and short term investments ("Liquid Assets") of Five Million Dollars
($5,000,000), less the sum of the following: (i) one-half (not to exceed
$100,000) of the expenses of the Merger; (ii) all costs paid by Buyer
associated with the Permitted New Investment; and (iii) the salary and employee
benefits paid by Buyer after the date of this

                                      A-17
<PAGE>

agreement to Tom Patin (all, in the aggregate, the "Deducted Expenses") (which
resulting net amount is hereinafter referred to as the "Buyer Targeted Cash
Balance"). The amount of the Liquid Assets adjusted by adding back the Deducted
Expenses is hereinafter referred to as the "Adjusted Liquid Assets". Any costs
incurred by Buyer which could reasonably be allocated either to the cost of
obtaining the Permitted New Investment or to the Merger, shall be considered
one-half an expense of the Merger and one-half a cost associated with the
Permitted New Investment. At the Closing, the only liabilities of Buyer of a
character that would be required to be shown on the balance sheet of Buyer
under generally accepted accounting principles shall be current debt pertaining
to the normal operation of Buyer as a holding company with no business
operations except the operations of Buyer Sub and no employees except Tom
Patin, and the current portion of expenses relating to the Merger and the
Permitted New Investment. Buyer shall, at the Closing, deposit cash in an
amount equal to the maximum amount payable to Buyer pursuant to the exercise of
all then outstanding stock options of Buyer (excluding options with an exercise
price of $20.00 or more) which may be exercised within three months after the
Closing Date, to be held in escrow pursuant to the terms of the escrow
agreement (the "Escrow Agreement") substantially in the form of Exhibit 5.4
hereto. If at the time of the Closing the Adjusted Liquid Assets are less than
the $4,000,000, this Agreement shall, at the option of either Buyer or ATIO,
terminate and no party shall have any further obligation hereunder (except with
respect to any loans made prior to such termination), provided, however, the
parties shall have such rights as are set forth in any loan documents to which
they are a party. If at the time of the Closing the Adjusted Liquid Assets are
less than $4,250,000, ATIO may elect to terminate this Agreement and no party
shall have any further obligation hereunder. If at the time of Closing the
Adjusted Liquid Assets are less than $5,000,000 there shall be an equitable
increase (the "Equitable Increase Adjustment") of the number of shares of Buyer
Common Stock issuable to the Stockholders in the Merger with respect to the
ATIO Shares identified on Schedule 5.4 hereto under the captions "Shares
Outstanding" and "Shares to be issued at the Effective Time", and with respect
to shares issuable pursuant to ATIO Options identified on Schedule 5.4 hereto
under the caption "Options Outstanding", calculated in the manner prescribed by
Schedule 5.4 hereto. If at the time of the Closing the Adjusted Liquid Assets
exceed $5,000,000 Buyer will distribute the excess to Buyer Sub.

   5.5 Litigation. There is no litigation or governmental or administrative
proceeding or investigation pending or, to its knowledge, threatened against
Buyer which would prevent or hinder the consummation of the transactions
contemplated by this Agreement or have a material adverse effect on Buyer.

   5.6 Finder's Fee. Buyer has not incurred or become liable for any broker's
commission or finder's fee relating to or in connection with the transactions
contemplated by this Agreement, except with respect to the Permitted New
Investment.

   5.7 Buyer's Public Information. Buyer has heretofore furnished to the
Stockholders information regarding Buyer, including its Annual Report on Form
10-KSB for the fiscal years ended September 30, 1997 and September 30, 1998,
its Proxy Statement with respect to the 1998 Annual Meeting of Stockholders and
its Quarterly Reports on Form 10-QSB for the quarters ended December 31, 1997
and 1998, March 31, 1998 and 1999, and June 30, 1998 and 1999, each as filed
with the Securities and Exchange Commission ("SEC") (as any such documents have
been amended since their original filing, the "Buyer SEC Documents") and will
distribute to the Stockholders its Annual Report on Form 10-KSB for its fiscal
year ending September 30, 1999 and the Proxy Statement related to the Meeting
(the "Prospective Filings"). As of their respective filing dates, the Buyer SEC
Documents did not contain, and the Prospective Filings will not contain, any
untrue statements of material facts or omit to state material facts required to
be stated therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading; except, however, any
information regarding ATIO included in any Prospective Filing which shall have
been furnished by ATIO. The balance sheet of Buyer at September 30, 1998 (the
"Buyer Base Balance Sheet") and statement of operations and cash flows for the
year then ended, audited by KPMG LLP, and the unaudited balance sheet of Buyer
at June 30, 1999 and statements of operations and cash flows for the nine-month
period then ended, all as contained in the Buyer SEC Documents, have been
prepared (and the balance sheet of Buyer at September 30, 1999 (the
"Prospective Balance Sheet") and statements of operations and cash flows for
the year then ended, audited by KPMG, LLP, will be prepared) in accordance with
generally accepted accounting principles applied

                                      A-18
<PAGE>

consistently during the periods covered thereby, are and will be complete and
correct in all material respects, and present or will present fairly in all
material respects the financial condition of Buyer at the dates of said
statements and the results of its operations and its cash flows for the periods
covered thereby. Except as reflected on the Base Balance Sheet, as of the date
of the Base Balance Sheet Buyer had no material liabilities of any nature,
whether accrued, absolute, contingent or otherwise, regardless of whether
claims in respect thereof had been asserted as of such date. Except as
reflected on the Base Balance Sheet or the unaudited balance sheet at June 30,
1999, as of the date hereof and as of the Closing, Buyer does not and will not
have material liabilities of any nature, whether accrued, absolute, contingent
or otherwise.

   5.8 Buyer Common Stock. Buyer does not have a sufficient number of
authorized but unissued shares of Buyer Common Stock available for issuance to
the Stockholders and the holders of the Convergent Warrants, the Piper Jaffray
Warrants, and the Options to be assumed and/or converted in the Merger, upon
exercise thereof, in accordance with the provisions of this Agreement. Upon the
filing of the Certificate of Amendment with the Delaware Secretary of State,
the Buyer will have a sufficient number of authorized but unissued shares of
Buyer Common Stock available for issuance to the Stockholders and the holders
of such warrants and options to be assumed and/or converted in the Merger, upon
exercise thereof, in accordance with the provisions of this Agreement. The
Buyer Common Stock to be issued pursuant to this Agreement will, when so
delivered (upon the receipt of any exercise price therefore, if applicable), be
duly and validly issued, fully paid and nonassessable. Buyer has entered into a
"piggyback" registration rights agreement with Christian Gurney in the form
previously furnished to ATIO.

   5.9 Absence of Certain Changes. Except as set forth on Schedule 5.9 hereto,
since the date of the Base Balance Sheet, there has been no change in the
condition, financial or otherwise, of Buyer or in the assets, liabilities,
properties, business or prospects of Buyer which change by itself or in
conjunction with all other such changes, whether or not arising in the ordinary
course of business, has had or is reasonably likely to have a material adverse
effect on Buyer.

   5.10 Compliance with Laws. Buyer is in compliance with all applicable
statutes, ordinances, orders, judgments, decrees and rules and regulations
promulgated by any federal, state, municipal or other governmental authority
which apply to Buyer or to the conduct of its business except where the failure
of Buyer to so comply would not have a material adverse effect on Buyer, and
Buyer has not received notice of a violation or alleged violation of any such
statute, ordinance, order, rule or regulation.

   5.11 Disclosure. The representations, warranties and statements contained in
this Agreement and in the certificates, exhibits and schedules delivered to
ATIO when taken together do not contain any untrue statement of a material
fact, and do not omit to state a material fact required to be stated therein or
necessary in order to make such representations, warranties or statements not
misleading in light of the circumstances under which they were made.

                         ARTICLE VI--COVENANTS OF BUYER

   6.1 Resignation of Officers; Termination of Employees of Buyer. Buyer shall
use all reasonable efforts to obtain the resignations of all of its officers
and directors at the Effective Time. Buyer shall terminate the employment of
all of its employees except Tom Patin (excluding employees of Buyer Sub) at or
prior to the Effective Time.

   6.2 No Issuance of Additional Shares/Options. (a) ATIO and the Buyer each
approve a grant to Tom Patin of options to purchase 74,000 shares of CESH stock
under the CESH 1990 Stock Option Plan, subject to approval by the shareholders
of CESH to increase the number of shares reserved to be issued under the 1990
Stock Option Plan to 130,000. These options will vest at the rate of 4,000 per
month during the first 12 months following the Effective Time and the balance
of the options will vest pro rata monthly during the second 12 months following
the Effective Time. The options granted to Mr. Patin are to be considered
separately from other provisions of this Agreement and shall be excluded from
all limitations on, or provisions relating to,

                                      A-19
<PAGE>

options contain elsewhere in this Agreement. By way of illustration and not by
way of limitation, the options granted to Mr. Patin shall be excluded from
other provisions in this Agreement: (i) relating to vesting or time limits for
exercise of options granted under the Buyer's Old Stock Option Plans; (ii)
prohibiting the grant of further options under the Buyer's Old Stock Option
Plans; (iii) describing the capital structure of the Buyer; or (iv) requiring
the escrow of certain funds relating the exercise of previously granted
options.

   (b) Schedule 5.3 lists all options to purchase Common Stock of Buyer
outstanding at the date of this Agreement, other than those granted to Mr.
Patin as described in Section 6.2(a) (the "Old Buyer Options"). Except as set
forth in Section 6.2(a) above or pursuant to the Permitted New Investment,
Buyer shall not issue any additional options, warrants, convertible securities
or other rights to purchase or acquire its equity securities, of any kind prior
to the Effective Time. Except for Common Stock issued pursuant to any exercises
of Old Buyer Options prior to the Effective Time and for Permitted New
Investment as defined in Section 7.14 hereof, Buyer will not issue or sell any
additional shares of Common Stock or other equity securities before the
Effective Time. Buyer will submit, for approval of Buyer Stockholders at the
Meeting, a proposal to adopt the New Stock Option Plans (pursuant to Section
7.7). At the Effective Time, the Buyer's Old Stock Option Plans shall be
amended and all outstanding Old Buyer Options held by persons who were
directors of Buyer immediately prior to the Effective Time or were employees of
Buyer or of Buyer Sub immediately prior to the Effective Time, other than
persons who will continue as employees of the Surviving Corporation, shall vest
and may be exercised within three months after the Effective Time.

   6.3 Exclusivity. Prior to the Closing Date or termination of this Agreement,
Buyer will not, and will not permit or cause any of its officers or directors
to, and shall direct its representatives not to, directly or indirectly,
initiate, solicit, knowingly encourage or otherwise knowingly facilitate (i)
the making of any offer, whether in writing or otherwise, from any person other
than ATIO (a "Third Party") to acquire Buyer or all or a material portion of
the assets of Buyer (not including, however, Buyer Sub or Buyers other
subsidiaries) taken as a whole, pursuant to a Merger, consolidation,
conversion, reorganization or other method of business combination, sale of
assets or similar transaction with respect to Buyer or its subsidiaries,
including any single or multi-step transaction or series of related
transactions, which is structured to permit such Third Party to acquire Buyer
or a material portion of the assets of Buyer taken as a whole, or (ii) the
making of any offer, whether in writing or otherwise, to any Third Party to
acquire all or any material portion of the assets of such Third Party, or to
merge or consolidate with, or reorganize, combine or sell assets to or purchase
assets from, or similar transaction with a Third party, including through any
single or multi-step transaction or series of related transactions, which is
structured to permit Buyer to acquire such Third party or material portion of
the assets of such third Party (either being hereafter referred to as an
"Acquisition Proposal"). Except as set forth in the following sentences of this
Section 6.3, Buyer will not, and will not permit or cause any of its officers
and directors to and shall direct its employees, agents and representatives not
to, directly or indirectly, engage in any negotiations concerning, or provide
any confidential information or data to, or have any discussions with, any
person relating to an Acquisition Proposal, whether made before or after the
date of this Agreement, or otherwise knowingly facilitate any effort or attempt
to make or implement an Acquisition Proposal. Notwithstanding the preceding
provisions of this Section 6.3, and subject to the conditions of the following
sentence, Buyer or its Board of Directors may (1) provide information in
response to a request therefor by a person who has made an unsolicited bona
fide written Acquisition Proposal; (2) engage in any negotiations or
discussions with any person who has made an unsolicited bona fide written
Acquisition Proposal; and (3) recommend such an Acquisition Proposal to the
shareholders of Buyer, if the Board of Directors of Buyer shall have determined
in good faith that (y) the failure to take such action is reasonably likely to
result in a breach of such Board's fiduciary duties under, or otherwise
violate, applicable law, and (z) that such Acquisition Proposal may be one
which, if accepted by Buyer, is reasonably capable of being consummated, taking
into account all legal, financial and regulatory aspects of the proposal and
the person making the proposal and which, if consummated would be reasonably
likely, in the view of the Buyer Board of Directors, to result in a more
favorable transaction than the transaction contemplated by this Agreement,
taking into account the long-term prospects and interests of Buyer and its
shareholders (a "Superior Proposal"). Buyer will immediately cease and cause to
be terminated any existing activities, discussions or negotiations with any
parties conducted

                                      A-20
<PAGE>

heretofore with respect to any Acquisition Proposal. Buyer agrees that it will
take the necessary steps to promptly inform the individuals or entities
referred to in the first sentence of this Section 6.3 of the obligations
undertaken in this Section 6.3.

   6.4 Employee Solicitation Prohibited. For a period of two years after the
date of this Agreement, the Surviving Corporation shall not, directly or
indirectly, without the prior written consent of Buyer Sub, solicit the
employment of, negotiate employment with, or hire any of Buyer Sub's employees
except in response to a general advertisement. Buyer shall cause Buyer Sub to
agree, that for a period of two years after the date of this Agreement, Buyer
Sub shall not, directly or indirectly, without the prior written consent of the
Surviving Corporation, solicit the employment of, negotiate employment with, or
hire any of the Surviving Corporation's employees except in response to a
general advertisement.

   6.5 Corporate Changes. Except as contemplated or permitted by this
Agreement, Buyer shall not, prior to the Effective Time, (i) amend its
certificate of incorporation or By-Laws in a manner which would be inconsistent
with the consummation of the transactions contemplated hereby, (ii) agree to
any merger, sale of all or substantially all of its assets or any other similar
reorganization, arrangement or business combination or (iii) enter into or
modify any contract in a manner that will or is reasonably likely to materially
and adversely affect the consummation of the transactions contemplated hereby.

   6.6 Insurance. Prior to Closing Buyer shall maintain uninterrupted its
existing insurance coverage of all types in effect or procure substantially
similar substitute insurance policies with financially sound and reputable
insurance companies in at least such amounts and against such risks as are
currently covered by such policies if such insurance coverage is available,
except for insurance coverage the failure to so keep in effect would not have a
material adverse effect. Directors' and Officers' liability insurance shall be
maintained in accord with the provisions of Section 9.7(b) hereof. At the
Effective Time Buyer's insurance coverages (except Directors' and Officers'
liability insurance) will terminate, and new coverages as determined by ATIO
shall be initiated.

   6.7 Disposition of Buyer Sub and Liquidation of CE Distributing, Inc.
Immediately prior to the Effective Time, Buyer shall distribute the stock of
Buyer Sub to Buyer's stockholders ("Buyer Sub Distribution Transaction") and,
at any time prior to the Effective Time, shall liquidate its wholly owned
subsidiary, CE Distributing, Inc., an Iowa corporation ("CE Distributing").

   6.8 Stockholder Approvals. Buyer shall take, in accordance with applicable
law, applicable Nasdaq rules and its certificate of incorporation and By-Laws,
all action necessary to convene, as soon as practicable after the date of this
Agreement, the Meeting of the stockholders of Buyer to consider and vote upon
(A) the approval and adoption of this Agreement and the Merger, including the
issuance of the shares of Buyer Common Stock to be issued in the Merger
pursuant to this Agreement and all other transactions contemplated by this
Agreement, including, without limitation ) the Certificate of Amendment; (B)
the approval of the New Stock Option Plan in accordance with Section 7.7, and
(C) any other matters required to be approved by Buyer stockholders for
consummation of the Merger. The board of directors of Buyer shall recommend
such approval, and Buyer shall take all reasonable lawful action to solicit
such approval by its stockholders. Buyer and ATIO shall cooperate in the
preparation of a proxy statement (the "Proxy Statement") which shall be filed
by Buyer with the SEC as soon as practicable after the execution of this
Agreement. Buyer shall provide ATIO with copies of all filings made pursuant to
this Section 6.8 and shall consult with ATIO on any responses to comments made
by the staff of the SEC with respect thereto. All information furnished by ATIO
to Buyer for use in the Proxy Statement shall be true and correct in all
respects. Buyer and ATIO will use reasonable efforts to cause the Proxy
Statement to be mailed to Buyer's stockholders as promptly as practicable after
the SEC has indicated that it has no further comments on, or appropriate time
periods have elapsed since the filing of, the Proxy Statement.

   6.9 Directors' and Officers' Indemnification. From and after the Effective
Time, Buyer shall indemnify, defend and hold harmless the present and former
officers and directors of ATIO and persons who become officers or directors
prior to the Effective Time (collectively, the "Indemnitees") against all
losses, expenses, (including reasonable attorney's fees) claims, damages,
liabilities, costs or judgments or amounts that are paid

                                      A-21
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in settlement with the approval of Buyer (which approval shall not be
unreasonably withheld) arising out of actions or omissions occurring at or
prior to the Effective Time (including, without limitation, the transactions
contemplated by this Agreement) to the full extent permitted or required as of
the date hereof by ATIO's articles of incorporation and bylaws (and shall also
advance expenses as incurred to the fullest extent permitted under ATIO's
articles of incorporation and bylaws, provided that the person to whom expenses
are advanced provides the undertaking to repay such advances if and as
contemplated by applicable law or such certificate of incorporation and
bylaws).

   6.10 Tax Basis in Buyer Sub. Buyer represents that it believes, based on its
book basis in Buyer Sub, that its tax basis in the stock of Buyer Sub currently
is $36,000 and that, after forgiveness of an intercompany receivable from Buyer
Sub by contribution of such receivable to the capital of Buyer Sub (which will
be completed before the Effective Time), such tax basis will exceed $1.1
million.

            ARTICLE VII--SPECIAL PRE-MERGER RESTRUCTURING COVENANTS

   7.1 Venturian/Atio Pty Joint Venture Agreement. At or before the Effective
Time, the joint venture agreement effective October 1, 1997 among ATIO,
Venturian, Atio (Pty), Atio International and Ilan Sharon shall be terminated;
provided, however, that it may be replaced with an agreement that, in the sole
discretion of Buyer, does not and will not have an adverse effect the ongoing
operations of ATIO or the Surviving Corporation.

   7.2 ATIO Stockholder Agreements. At or before the Effective Time, all
agreements to which ATIO and any Stockholder or any affiliate of any
Stockholder (including Atio (Pty)), including, without limitation, the
Shareholders' Agreement, the Technology and License Agreement, the Technology
Development and Support Agreement, the Distribution Agreement, the Services
Agreement and any agreement providing for preemptive rights, registration
rights, voting rights or other approval rights with respect to ATIO
("Stockholder Agreements") shall be modified as required by Buyer or
terminated. The Services Agreement between Atio International and ATIO shall
have been modified to eliminate all cancellation or termination payments or
similar obligations of ATIO, Atio International or Willem Ellis.]

   7.3 Convergent Bridge Loan Agreement. At or before the Effective Time,
Convergent and ATIO shall have entered into an agreement, satisfactory in all
respects to Buyer, modifying the terms of the Loan Agreement dated as of March
12, 1999, as amended by the Loan Restructure Agreement dated as of June 16,
1999 (the "Bridge Loan Agreement") between them, substantially as described in
Exhibit 7.3 hereto, the Convergent Bridge Loan Modification.

   7.4 Relocation of Key ATIO Personnel and the Development Team. At or before
the Effective Time, ATIO shall prepare a plan, satisfactory to Buyer, for
appropriate immigration of certain key personnel and the ATIO development team
currently located in South Africa to the United States, and the timely
implementation of such plan and the relocation to the United States of those
members of the development team desiring to come to the United States.

   7.5 Title to Proprietary Rights. At or prior to the Effective Time, ATIO
shall have received exclusive title to all Proprietary Rights used or usable in
its business, including, without limitation, source code, patent, copyrights,
trademarks, etc., pertaining to products marketed or sold by ATIO or planned to
be marketed or sold by ATIO. Any rights retained by or licensed to Atio (Pty)
must be restricted so as to not compete with ATIO, except that Atio (Pty) will
have the exclusive right to distribute CyberCall in South Africa, Botswana,
Kenya, Namibia, Zimbabwe, Zambia, and other countries in Africa mutually agreed
upon from time to time after the Effective Time between the Surviving
Corporation and Atio (Pty).

   7.6 Change of Name of ATIO. At or prior to the Effective Time, ATIO shall
amend its articles of incorporation to change its name to such other name as
may be agreed upon by ATIO and Buyer, which shall not contain the term, "CE" or
"CE Software" or any confusingly similar adaptation thereof.

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<PAGE>

   7.7 Surviving Corporation Stock Option Plans. Prior to the Effective Time,
the Buyer, subject to the approval of ATIO of the unspecified terms thereof,
shall adopt a new employee stock option plan and director stock option plan
(which may be combined in one plan or contained in two separate plans) ("New
Stock Option Plans") covering no more than 750,000 shares of common stock of
the Surviving Corporation, which limit shall not include conversion of any
existing ATIO employee stock options. The New Stock Option Plans shall be
submitted to the stockholders of the Buyer for approval at the Meeting. The New
Stock Option Plans shall: (i) provide for administration by a committee of at
least two non-management directors; (ii) limit the total number of options
grantable by the Surviving Corporation (exclusive of any Old Buyer Options
granted by Buyer and not exercised prior to the Effective Time and inclusive of
ATIO options granted under the ATIO Plans) to twenty-five per cent (25%) of the
outstanding and issued stock of the Surviving Corporation; (iii) provide
incentives to both current and future management and key employees of the
Surviving Corporation; and (iv) encourage long-term employment, with rewards
tied to the success of the Surviving Corporation as measured by the trading
price of the Surviving Corporation's shares. The requirement of (ii) of this
Section 7.7 shall terminate one year after the Effective Time. The restrictions
contained in this Section 7.7 may be amended at any time prior to such
termination by the vote of stockholders holding a majority of the outstanding
shares of common stock of the Buyer or of the Surviving Corporation (as the
case may be).

   7.8 Lockup Agreements. ATIO shall use reasonable efforts to obtain prior to
the Closing an executed Lockup Agreement in substantially the form attached
hereto as Exhibit 7.8 (a "Lockup Agreement") from each person named in Schedule
7.8, covering shares of Common Stock of the Surviving Corporation issued in the
Merger in exchange for ATIO Shares, or issued subsequent to the Merger pursuant
to the exercise of warrants or options, whether the options or warrants were
granted before or after the Effective Time.

   7.9 Employment Agreements. ATIO shall exercise reasonable efforts to obtain,
prior to the Closing, employment agreements assuring that William Ellis, Mark
Chodos, Bouwe Hamersma and John Webb will continue to work for the Surviving
Corporation.

   7.10 Additional Investment by Venturian. At the Closing, Venturian shall
purchase 148,900 newly issued shares of Buyer Common Stock at a price of $6.48
per share, payable, at Venturian's option, either in cash or in exchange for
indebtedness, including accrued interest, of ATIO to Venturian incurred as
described in Section 7.12 below, or after the date hereof. Immediately
following the Closing the Surviving Corporation shall issue upon receipt of
payment therefore as hereinabove provided, to Venturian a certificate
representing such shares. As collateral for the obligation of Venturian set
forth in this Section 7.10, Venturian shall enter into a pledge agreement (the
"Venturian Pledge Agreement") with Buyer at the time of signing this Agreement
in the form of Exhibit 7.10 hereto.

   7.11 Additional Investment by Atio International. At the Closing, Atio
International shall purchase 314,062 shares of Buyer Common Stock at a price of
$6.48 per share, payable, at Atio International's option, either in cash, or in
exchange for indebtedness (including accrued interest) of ATIO to Atio
International incurred as described in Section 7.12 below or after the date
hereof, or if Atio International fails to purchase and pay for such shares,
Atio International shall, at the Closing, deliver to Buyer an irrevocable
letter of credit ("Atio Letter of Credit") issued by a United States Bank
acceptable to Buyer, providing for payment to be made to Buyer no later than
May 31, 2000. If Atio International fails to provide cash, exchange of
indebtedness, and/or the Letter of Credit in the aggregate amount of $2,035,122
at or before the Closing, the difference between the amount provided and
$2,035,122 shall be collateralized by the pledge by Atio International of the
shares of Buyer Common Stock to be issued to Atio International pursuant to the
Merger, pursuant to the form of the pledge agreement (the "Atio International
Pledge Agreement") in the form of Exhibit 7.11 hereto. The number of shares of
Buyer Common Stock to be so pledged shall be the number determined by dividing
(i) the difference between the amount provided by Atio International to Buyer
at the Closing pursuant to this Section 7.11 and the amount required to be so
provided by (ii) 6.48. If the Surviving Corporation shall not have received the
full purchase price of $2,035,122 pursuant to this Section 7.11 on or before
May 31, 2000, the pledged shares shall be forfeited and returned to the
Surviving Corporation and canceled.

                                      A-23
<PAGE>

   Buyer, Atio International and Venturian Loans to ATIO. In anticipation of
the execution of this Agreement (i) Atio (Pty) and Atio International have
funded continued development work for ATIO from and after July 31, 1999 for
which ATIO is indebted to Atio International in an aggregate amount of
approximately $50,000 to $60,000 per month, and will continue to fund at the
same rate the development work on the CyberCall products on and after the date
hereof and prior to the Closing Date, as documented at Closing (collectively,
the "Pty/International Loan Amounts"); (ii) Venturian made loans to ATIO in the
principal amounts of $100,000 and $50,000 pursuant to the terms of a loan
agreement dated October 28, 1999 and related Intercreditor Sharing Agreement
and Promissory Notes and may make additional loans to ATIO prior to Closing
(collectively, the "Venturian Loan Amounts"); and (iii) Buyer has made loans to
ATIO in the principal amount of $100,000, $50,000, $250,000 and $50,000
pursuant to the terms of the loan agreement dated October 28, 1999 and related
promissory notes and Intercreditor Sharing Agreement and security agreements,
and may, prior to Closing, make additional loans to ATIO as described herein
(the "Buyer Loan Amounts"). Any and all additional loans advanced by Buyer to
ATIO from and after December 28, 1999 shall be considered to be Buyer Loan
Amounts pursuant to this Section 7.12 and pursuant to the related security and
other loan documents applicable to loans heretofore made to ATIO by Buyer. All
Pty/International Loan Amounts pursuant to this Section 7.12 shall be credited
against the commitment to make additional investment of Atio International
contained in Section 7.11 and the principal, and accrued interest, of such
Pty/International Loan Amounts shall be exchanged for Buyer Common Stock
immediately after Closing in accordance with Section 7.11. All Venturian Loan
Amounts pursuant to this Section 7.12 shall be credited against the commitment
to make additional investment of Venturian contained in Section 7.10 and the
principal, and accrued interest, of such Venturian Loan Amounts shall be
exchanged for Buyer Common Stock immediately after Closing in accordance with
Section 7.10. All Buyer Loan Amounts pursuant to this Section 7.12, and accrued
interest on Buyer Loan Amounts, shall be credited against the Minimum Liquid
Asset Balance and Buyer Targeted Cash Balance amount set forth in Section 5.4
hereof at the Effective Time or, if the Merger is not completed for any reason,
shall be repaid in accordance with the terms of such loans. All security
interests of Buyer, Venturian and Atio International shall terminate at the
Effective Time.

   7.13 Termination of Alternative Financing Solicitation. ATIO will not, and
will not permit or cause any of its officers or directors to, and shall direct
its representatives not to, directly or indirectly, initiate, solicit,
knowingly encourage or otherwise knowingly facilitate the making of any offer,
whether in writing or otherwise, from any person other than Buyer (a "Third
Party") to (i) purchase stock of ATIO, or loan funds to ATIO, or (ii) acquire
ATIO or all or a material portion of the assets of ATIO or its subsidiaries,
taken as a whole, pursuant to a merger, consolidation, conversion,
reorganization or other method of business combination, sale of assets or
similar transaction with respect to ATIO or its subsidiaries, including any
single or multi-step transaction or series of related transactions, which is
structured to permit such Third Party to acquire ATIO or a material portion of
the assets of ATIO and its subsidiaries, taken as a whole (an "ATIO Acquisition
Proposal"). ATIO will not, and will not permit or cause any of its officers and
directors to and shall direct its employees, agents and representatives not to,
directly or indirectly, engage in any negotiations concerning, or provide any
confidential information or data to, or have any discussions with, any person
relating to an Acquisition Proposal, whether made before or after the date of
this Agreement, or otherwise knowingly facilitate any effort or attempt to make
or implement an Acquisition Proposal. ATIO agrees that it will take the
necessary steps to promptly inform the individuals or entities referred to in
the first sentence of this Section 7.13 of the obligations undertaken in this
Section 7.13.

   7.14 Buyer Solicitation of Permitted New Investment. Notwithstanding any
other provision of this Agreement, but only after conferring with ATIO, Buyer
may at any time prior to the Effective Time solicit and receive subscriptions
for investments in its securities, for issuance as soon as possible after the
Effective Time, including, without limitation, its Common Stock, warrants to
purchase Common Stock, preferred stock (issuable only upon amendment of Buyer's
Certificate of Incorporation authorizing preferred stock) or convertible debt,
with or without warrants) (the "Permitted New Investment") in an amount not to
exceed $5,000,000 (exclusive of the exercise of any related warrants). Any
costs incurred by Buyer in connection with any such new investment which could
be allocated between new investment costs and general costs of the Merger shall
be allocated equally for the purposes of Section 5.4 of this agreement.

                                      A-24
<PAGE>

   7.15 Source Code. To assure that ATIO has the most current and correct
source code at all times, from the date of this Agreement through the time that
the development team is relocated to the United States, Atio (Pty) shall send
to ATIO no less frequently than monthly all source code relating to
intellectual property owned by ATIO and any necessary development tools and
environment. In addition, ATIO shall compile such source code and verify that
(i) it is the object code to the most current version of its products; (ii) it
is of suitable completeness and quality to be commercially saleable; and (iii)
it is suitable for installation in customers' production environments.

   7.16 Venturian/Smaby Litigation. In consideration of Buyer's agreement to
issue 4,833 shares of Buyer Common Stock as described in Section 1.1.7(k)
above, Venturian represents and warrants that ATIO has no liability for any
amount payable to one Smaby, and agrees to hold ATIO and Buyer harmless from
any liability or costs, including attorney's fees, relating thereto.

   7.17 Atio (Pty) Disclaimer of Proprietary Rights. Atio (Pty) represents and
warrants that its only right with respect to the ATIO Proprietary Rights,
including, without limitation, the product generally referred to as
"CyberCall", is and shall after the Closing Date be, only the rights under a
reseller agreement (the "Reseller Agreement") the form and substance of which
shall be subject to Buyer's approval prior to Closing, for the sale of
CyberCall in the same countries as are designated in or pursuant to Section
7.5.

                            ARTICLE VIII--CONDITIONS

   8.1 Conditions to the Obligations of Buyer. The obligation of Buyer to
consummate this Agreement and the transactions contemplated hereby are subject
to the fulfillment, prior to or at the Closing, of the following conditions
precedent:

     (a) Buyer Stockholders' Approval. This Agreement, the Buyer Certificate
  of Amendment, the vesting of the Old Buyer Options, the termination of the
  Buyer's Old Stock Option Plan, and all other transactions contemplated by
  this Agreement, including the approval of the New Stock Option Plans, shall
  have been legally approved and adopted by the requisite votes of the
  Buyer's stockholders pursuant to a definitive proxy statement filed with
  the SEC.

     (b) Representations; Warranties; Covenants. Each of the representations
  and warranties of ATIO and the Stockholders contained in Article II, shall
  be true and correct, as though made on and as of the Closing Date; and
  ATIO, Atio (Pty), Convergent and the Stockholders shall, on or before the
  Closing Date, have performed all of the covenants and agreements hereunder
  which by the terms hereof are to be performed and satisfied by it or them
  or any of them on or before the Closing Date, including, without
  limitation, all of the covenants and agreements set forth in Article VII.

     (c) No Material Change. Except as contemplated or permitted by this
  Agreement, there shall have been no material adverse change in the
  financial condition, prospects, properties, assets, liabilities, business
  or operations of ATIO since the date hereof.

     (d) Certificate from Officers. ATIO shall have delivered to Buyer a
  certificate of the Chief Executive Officer of ATIO dated as of the Closing
  Date to the effect that the statements set forth in Sections (b) and (c)
  above in this Section 8.1 are true and correct.

     (e) Opinion of Counsel. At the Closing, Buyer shall have received from
  Dorsey & Whitney, counsel for ATIO, an opinion as of said date,
  substantially in the form attached hereto as Exhibit 8.1(e).

     (f) No Litigation. There shall have been no determination by Buyer,
  acting in good faith, that the consummation of the transactions
  contemplated by this Agreement has become inadvisable or impracticable by
  reason of the institution or realistic threat by any person or any federal,
  state, foreign or other governmental authority of litigation, proceedings
  or other action against Buyer, ATIO, Atio (Pty), Convergent or any
  Stockholder.

     (g) Consents. ATIO shall have made all filings with and notifications of
  governmental authorities, regulatory agencies and other entities required
  to be made by such entity in connection with the execution and delivery of
  this Agreement, and the performance of the transactions contemplated
  hereby; and ATIO

                                      A-25
<PAGE>

  shall have received all authorizations, waivers, consents and permits, in
  form and substance reasonably satisfactory to Buyer, from all third
  parties, including, without limitation, applicable governmental
  authorities, regulatory agencies, lessors, lenders and contract parties
  required to permit the continuation of the business of ATIO by Buyer and
  the consummation of the transactions contemplated by this Agreement.

     (h) FIRPTA Withholding. At or prior to the Closing, Buyer shall have
  received from ATIO, a "transferor's certificate of non-foreign status" as
  provided in the Treasury Regulations under Section 1445 of the Code
  substantially in the form attached hereto as Exhibit 8.1(h).

     (i) Minimum Cash Requirement. Buyer shall have reasonable assurance that
  at the Effective Time, the Surviving Corporation will have or shall have
  received (i) $5,000,000, as provided in Section 5.4 and as adjusted as set
  forth in Section 5.4, plus (ii) funds from Venturian, as described in
  Section 7.10; plus (iii) $50,000 to $60,000 per month from Atio
  International, as described in Section 7.11; plus (iv) a committed amount
  of net proceeds from Permitted New Investment as provided in Section 7.14,
  in the aggregate amount of not less than $7,500,000.

     (j) Proceedings Satisfactory to Buyer. All proceedings to be taken by
  ATIO in connection with the consummation of the Closing and the other
  transactions contemplated hereby and all certificates, opinions,
  instruments and other documents required to effect the transaction
  contemplated hereby reasonably requested by Buyer shall be reasonably
  satisfactory in form and substance to Buyer and its counsel.

     (k) Stockholder Representations Received. Each of the Stockholders shall
  have executed and delivered to Buyer the Stockholder representations set
  forth in the Letter of Transmittal in the form of Exhibit 1.2.

   8.2 Conditions to the Obligations of ATIO. ATIO's obligation to consummate
this Agreement and the transactions contemplated hereby is subject to the
fulfillment, prior to or at the Closing, of the following conditions precedent:

     (a) Buyer Stockholders' Approval. This Agreement, the Buyer Certificate
  of Amendment, the vesting of the Old Buyer Options, the termination of the
  Buyer's Old Stock Option Plan, and all other transactions contemplated by
  this Agreement, including the approval of the New Stock Option Plans, shall
  have been legally approved and adopted by the requisite votes of the
  Buyer's stockholders.

     (b) Representations; Warranties; Covenants. Each of the representations
  and warranties of Buyer contained in Article V shall be true and correct as
  though made on and as of the Closing Date in all material respects; Buyer
  shall, on or before the Closing, have performed all of its covenants and
  agreements hereunder which by the terms hereof are to be performed on or
  before the Closing; and Buyer shall have delivered to ATIO a certificate of
  the Chief Financial Officer of Buyer dated as of the Closing Date to such
  effect.

     (c) Opinion of Counsel. At the Closing, ATIO shall have received from
  Davis, Brown, Koehn, Shors & Roberts, P.C., counsel for Buyer, an opinion
  as of said date, in substantially the form attached hereto as Exhibit
  8.2(c).

     (d) Filings. The Buyer shall have made all filings with and
  notifications of governmental authorities, regulatory agencies and other
  entities required to be made by such entities in connection with the
  execution and delivery of this Agreement and, the performance of the
  transactions contemplated hereby.

     (e) Escrow Agreement. The Buyer and the Escrow Agent shall have executed
  and delivered the Escrow Agreement in substantially the form of Exhibit 5.4
  attached hereto.

                     ARTICLE IX--SURVIVAL; INDEMNIFICATION

   9.1 Survival of Representations, Warranties, Etc. All material
representations, warranties, agreements, covenants and obligations herein or in
any schedule or certificate delivered by any party incident to the transactions
contemplated hereby may be relied upon by the party receiving the same and
shall survive for one year after the Closing regardless of any investigation by
such party and shall not merge into the performance of any obligation by any
party hereto, subject to the provisions of this Article IX.

                                      A-26
<PAGE>

   9.2 Indemnification by the Stockholders. ATIO, prior to the Closing Date and
each Stockholder (ATIO and such Stockholders each being hereafter referred to
as an "ATIO Indemnifying Party"), subsequent to the Closing Date, severally,
and not jointly, shall indemnify and hold harmless the Buyer its officers,
directors and employees (the "Buyer Indemnified Party") from and against and in
respect of all losses, liabilities, obligations, damages, deficiencies,
actions, suits, proceedings, demands, assessments, orders, judgments, fines,
penalties, costs and expenses (including the reasonable fees, disbursements and
expenses of attorneys, accountants and consultants) of any kind or nature
whatsoever (whether or not arising out of third-party claims and including all
amounts paid in investigation, defense or settlement of the foregoing) (a
"Loss" or "Losses") sustained, suffered or incurred by or made against the
Buyer Indemnified Party, arising out of or based upon: (a) any breach of any
representation or warranty made by such ATIO Indemnifying party pursuant to
Section 2 of this Agreement or any schedule hereto; or (b) any breach of any
covenant or agreement made by such ATIO Indemnifying Party in this Agreement or
any Schedule hereto (such claims under clauses (a) and (b) hereinafter
collectively referred to as "Buyer Indemnifiable Losses"). No Stockholder shall
have any obligation to indemnify with respect to a Loss to the extent the Loss
shall have been caused by a breach by any other Stockholder.

   9.3 Limitations on Indemnification.

   9.3.1 General Threshold. Subject to Section 9.3.4, the Buyer Indemnified
Party shall not be entitled to indemnification in respect of Buyer
Indemnifiable Losses except to the extent the cumulative amount of all Buyer
Indemnifiable Losses exceeds $75,000 (the "Buyer Deductible"), which excess
cumulative amount shall be recoverable in accordance with the terms hereof.

   9.3.2 General Maximum Indemnification. Subject to the exceptions set forth
in Section 9.3.4 and the limitations set forth in Section 9.3.1, no Stockholder
shall be obligated under any circumstance to indemnify Buyer Indemnified
Parties in respect of Buyer Indemnifiable Losses to the extent the cumulative
amount of all Buyer Indemnifiable Losses exceeds 6.48 multiplied by the number
of shares of Buyer Common Stock received by Buyer Indemnified Parties as a
result of the Merger. With respect to the Individual Stockholders, the sole
recourse of a Buyer Indemnified Party against any such Individual Stockholder
for indemnity shall be to proceed against the Buyer Common Stock acquired by
such Individual Stockholder in the Merger, and no Individual Stockholder shall
have any monetary liability with respect to such Buyer Indemnified Party on
such Buyer Indemnified Losses. For such purposes, each share of Buyer Common
Stock shall be deemed to have a value of $6.48.

   9.3.3 Time Limits for Claims. Subject to the exceptions set forth in Section
9.3, no claim for indemnification may be made by any Buyer Indemnified Party in
respect of Buyer Indemnifiable Losses unless the written notice required by
Section 9.5 with respect to such Losses shall have been received by the
Stockholders on a date prior to the twelve month anniversary of the Closing
Date; provided, however, that if prior to the applicable date of expiration a
specific state of facts shall have become known which may constitute or give
rise to any Buyer Indemnifiable Loss as to which indemnity may be payable and
the Buyer Indemnified Party shall have given notice of such facts to the
Stockholders, made a claim for indemnification and, except with respect to
third party claims, pursued such claim within twelve months thereafter, then
the right to indemnification with respect thereto shall remain in effect until
such matter shall have been finally determined and disposed of, and any
indemnification due in respect thereof shall have been paid.

   9.3.4 Dollar-for-Dollar and Fraud Claims. The limitations contained in
Sections 9.3.1 and 9.3.2 hereof shall not apply with respect to Losses caused
by fraud or intentional misrepresentation on the part of an ATIO Indemnifying
Party with respect to this Agreement, or the breach by ATIO of any
representation contained in Section 2.4 of this Agreement or to Losses caused
by fraud or intentional misrepresentation on the part of a specific Stockholder
or the breach by a specific Stockholder of such Stockholder's representations
set forth in Section 2 of Exhibit 1.2, in which event, however, recourse may
only be against the Stockholder responsible for the Loss.

                                      A-27
<PAGE>

   9.3.5 Contribution. Each ATIO Indemnifying Party that is liable for a Buyer
Indemnified Loss pursuant to Section 9.2 above shall contribute to any Buyer
Indemnified Loss in the same proportion that the number of shares of Buyer
Common Stock received by such ATIO Indemnifying Party on the Closing Date bears
to the total number of shares of Buyer Common Stock issued on the Closing Date
to all ATIO Indemnifying Parties liable for such Buyer Indemnified Loss. To the
extent any ATIO Indemnifying Party contributes in excess of such amount, such
ATIO Indemnifying Party shall have a right of contribution from each other ATIO
Indemnifying Party. No Stockholder, as such, shall have any right of indemnity
or contribution from ATIO after the Closing Date with respect to the breach of
any representation or warranty under this Agreement. No ATIO Indemnifying Party
shall be obligated to contribute to any other ATIO Indemnifying Party with
respect to a Loss to the extent such Loss shall have been caused by a breach by
such other Indemnifying Party.

   9.4 Indemnification by Buyer. Buyer agrees, in all cases subject to the
limitations set forth in this Article IX subsequent to the Closing Date to
indemnify and hold harmless the Stockholders ("Stockholder Indemnified
Parties") from and against and in respect of all Losses sustained, suffered or
incurred by or made against any of them arising out of or based upon (a) any
breach by inaccuracy of any representation or warranty made by Buyer in this
Agreement or in any Schedule hereto or in any certificate delivered pursuant to
Section 8.2 in connection with the Closing; and (b) any breach of any covenant
or agreement made by Buyer in this Agreement or in any Schedule hereto (such
claims under clauses (a) and (b) being hereinafter collectively referred to as
"Stockholder Indemnifiable Losses"); provided, however that no indemnification
shall be required hereunder except to the extent the cumulative amount of all
Stockholder Indemnifiable Losses exceeds $75,000 (the "Stockholder
Deductible"), which excess amount shall be recoverable in accordance with the
terms hereof

   9.5 Notice; Defense of Claims. Promptly after receipt by an indemnified
party of notice of any claim, liability or expense to which the indemnification
obligations hereunder would apply, the indemnified party shall give notice
thereof in writing to the indemnifying party, but the omission to so notify the
indemnifying party promptly will not relieve the indemnifying party from any
liability except to the extent that the indemnifying party shall have been
prejudiced as a result of the failure or delay in giving such notice. Such
notice shall state the information then available regarding the amount and
nature of such claim, liability or expense and shall specify the provision or
provisions of this Agreement under which the liability or obligation is
asserted. If within 30 days after receiving such notice the indemnifying party
gives written notice to the indemnified party stating that (i) it would be
liable under the provisions hereof for indemnity in the amount of such claim,
liability or expense if such claim were successful and (ii) that it disputes
and intends to defend against such claim, liability or expense at its own cost
and expense, then counsel for the defense shall be selected by the indemnifying
party (subject to the consent of the indemnified party which consent shall not
be unreasonably withheld) and the indemnified party shall not be required to
make any payment with respect to such claim, liability or expense as long as
the indemnifying party is conducting a good faith and diligent defense at its
own expense; provided, however, that the assumption of defense of any such
matters by the indemnifying party shall relate solely to the claim, liability
or expense that is subject or potentially subject to indemnification. The
indemnifying party shall have the right, with the consent of the indemnified
party, which consent shall not be unreasonably withheld, to settle all
indemnifiable matters related to claims by third parties which are susceptible
to being settled provided its obligation to indemnify the indemnifying party
therefor will be fully satisfied. The indemnifying party shall keep the
indemnified party apprised of the status of the claim, liability or expense and
any resulting suit, proceeding or enforcement action, shall furnish the
indemnified party with all documents and information that the indemnified party
shall reasonably request and shall consult with the indemnified party prior to
acting on major matters, including settlement discussions. Notwithstanding
anything herein stated to the contrary, the indemnified party shall at all
times have the right to fully participate in such defense at its own expense
directly or through counsel; provided, however, if the named parties to the
action or proceeding include both the indemnifying party and the indemnified
party and representation of both parties by the same counsel would be
inappropriate under applicable standards of professional conduct, the
indemnified party shall be entitled to retain separate counsel, the expense of
which shall be paid by the indemnifying party provided that such counsel is
selected by the indemnifying party and such counsel is reasonably acceptable to
the indemnified party. If no such notice of intent to dispute and defend is
given by the indemnifying party, or if

                                      A-28
<PAGE>

such defense is not being or ceases to be conducted, the indemnified party
shall, at the reasonable expense of the indemnifying party, undertake the
defense of (with counsel selected by the indemnified party), and shall have the
right to compromise or settle (exercising reasonable business judgment), such
claim, liability or expense. If such claim, liability or expense is one that by
its nature cannot be defended solely by the indemnifying party, then the
indemnified party shall make available all information and assistance that the
indemnifying party may reasonably request and shall cooperate with the
indemnifying party in such defense.

   9.6 Remedies. The indemnification provisions of this Article IX are the sole
and exclusive remedy from and after the Effective Time of any party to this
Agreement for a breach of any representation, warranty or covenant contained
herein. Notwithstanding the preceding sentence, each of the parties
acknowledges and agrees that the other parties hereto would be damaged
irreparably in the event any of the provisions of this Agreement are not
performed in accordance with their specific terms or otherwise are breached.
Accordingly, each of the parties hereto agrees the other parties hereto shall
be entitled to an injunction to prevent breaches of the provisions of this
Agreement and to enforce specifically this Agreement and the terms and
provisions hereof (including the indemnification provisions hereof) in any
competent court having jurisdiction over the parties, in addition to any other
remedy to which they may be entitled at law or in equity.

   9.7 Directors' and Officers' Indemnification. (a) Indemnification. From and
after the Effective Time, the Surviving Corporation shall, to the fullest
extent not prohibited by applicable law, indemnify, defend and hold harmless
each person who is now, or has been at any time prior to the date hereof, or
who becomes prior to the Effective Time, an officer or director of Buyer or the
Surviving Corporation (each an "Indemnified Party" and collectively, the
"Indemnified Parties") against all losses, expenses (including reasonable
attorney's fees and expenses), claims, damages or liabilities or, subject to
the proviso of the next succeeding sentence, amounts paid in settlement,
arising out of actions or omissions occurring at or prior to the Effective Time
that are, in whole or in part, based on or arising out of the fact that such
person is or was a director or officer of such party arising out of or
pertaining to the transactions contemplated by this Agreement (the "Indemnified
Liabilities"). In the event of any such loss, expense, claim, damage or
liability (whether or not arising prior to the Effective Time), (i) the
Surviving Corporation shall pay the reasonable fees and expenses of counsel for
the Indemnified Parties selected by Buyer, which counsel may also serve as
counsel to the Surviving Corporation and which counsel shall be reasonably
satisfactory to the Indemnified Parties (which consent shall not be
unreasonably withheld), promptly after statements therefor are received and
otherwise advance to such Indemnified Party upon request reimbursement of
documented expenses reasonably incurred, in either case to the extent not
prohibited by the Delaware Law, (ii) Buyer will cooperate in the defense of any
such matter and (iii) any determination required to be made with respect to
whether an Indemnified Party's conduct complies with the standards set forth
under the Delaware Law and the certificate of incorporation or By-Laws of the
Surviving Corporation shall be made by independent counsel mutually acceptable
to Buyer and the Indemnified Party (the "Independent Counsel"); provided,
however, that Buyer shall not be liable for any settlement effected without its
written consent (which consent shall not be unreasonably withheld). The
Indemnified Parties as a group may retain only one law firm with respect to
each related matter except to the extent there is, in the written opinion of
the Independent Counsel, under applicable standards of professional conduct, a
conflict on any significant issue between positions of such Indemnified Party
and any other Indemnified Party or Indemnified Parties.

   (b) Insurance. For a period of six years after the Effective Time, the
Surviving Corporation shall cause to be maintained in effect the policies of
directors' and officers' liability insurance maintained by Buyer; provided,
that the Surviving Corporation may substitute therefor policies of at least the
same coverage containing terms that are no less advantageous with respect to
matters occurring prior to the Effective Time to the extent such liability
insurance can be maintained annually at a cost to the Surviving Corporation not
greater than 200 percent of the current annual premiums for such directors' and
officers' liability insurance; provided, further, that if such insurance cannot
be so maintained or obtained at such cost, Buyer shall maintain or obtain as
much of such insurance as can be so maintained or obtained at a cost equal to
200 percent of the current annual premiums of Buyer for its directors' and
officers' liability insurance.

                                      A-29
<PAGE>

   (c) Successors. In the event Buyer or any of its successors or assigns (i)
consolidates with or merges into any other person or entity and shall not be
the continuing or surviving corporation or entity of such consolidation or
merger or (ii) transfers all or substantially all of its properties and assets
to any person or entity, then and in either such case, proper provisions shall
be made so that the successors and assigns of Buyer shall assume the
obligations set forth in this Section 9.7.

   (d) Survival of Indemnification. To the fullest extent not prohibited by
law, from and after the Effective Time, all rights to indemnification as of the
date hereof in favor of the employees, agents, directors and officers of Buyer
with respect to their activities as such prior to the Effective Time, as
provided in its certificate of incorporation and By-Laws of Buyer in effect on
the date thereof, shall survive the Merger and shall continue in full force and
effect for a period of not less than six years from the Effective Time.

                      ARTICLE X--TERMINATION OF AGREEMENT

   10.1 Termination. This Agreement may be terminated any time prior to the
Closing Date as follows:

     (i) With the mutual consent of Buyer and ATIO;

     (ii) By Buyer, if the Closing has not occurred on or the Closing
  Deadline;

     (iii) By Buyer, if there has been a material misrepresentation or breach
  of warranty on the part of ATIO in the representations and warranties
  contained herein or a material breach of covenants on the part of ATIO and
  the same has not been cured within 30 days after notice thereof. In the
  event of any termination pursuant to this Section 10.1(c), written notice
  setting forth the reasons therefor shall forthwith be given by Buyer to
  ATIO.

     (iv) By ATIO if there has been a material misrepresentation or breach of
  warranty on the part of Buyer in the representations and warranties
  contained herein or a material breach of covenants on the part of Buyer and
  the same has not been cured within 30 days after notice thereof. In the
  event of any termination pursuant to this Section 10.1(d), written notice
  setting forth the reasons therefor shall forthwith be given by ATIO.

   Notwithstanding anything herein to the contrary, the right to terminate this
Agreement under Section 10.1 shall not be available to any party to the extent
the failure of such party, respectively, to fulfill any of its obligations
under this Agreement has been the cause of, or resulted in, the failure of the
Closing to occur on or before such date (as a result, for example, of an action
or failure to act causing a failure of a condition precedent).

   10.2 Effect of Termination. All obligations of the parties hereunder shall
cease upon any termination pursuant to Section 10.1, provided, however, that
(i) the provisions of this Article X hereof shall survive any termination of
this Agreement in any event; (ii) nothing herein shall relieve any party from
any liability for a material error or omission in any of its representations or
warranties contained herein or a material failure to comply with any of its
covenants, conditions or agreements contained herein, provided, further, that
no party shall have any liability for any such material error or omission or
failure to comply other than for willful errors or omissions or failures to
comply; and (iii) any party may proceed as further set forth in Section 10.3
below.

   10.3 Right to Proceed. Anything in this Agreement to the contrary
notwithstanding, if any of the conditions specified in Section 8.1 hereof have
not been satisfied, Buyer shall have the right to proceed with the transactions
contemplated hereby without waiving any of its rights hereunder, and if any of
the conditions specified in Section 8.2 hereof have not been satisfied, ATIO
shall have the right to proceed with the transactions contemplated hereby
without waiving any of ATIO's rights hereunder.

                           ARTICLE XI--MISCELLANEOUS

   11.1 Fees and Expenses. Except as set forth herein, each of the parties will
bear its own expenses in connection with the negotiation and the consummation
of the transactions contemplated by this Agreement.

                                      A-30
<PAGE>

   11.2 Governing Law. This Agreement shall be construed under and governed by
the internal laws of the State of Iowa without regard to its conflict of laws
provisions. The parties hereto hereby irrevocably and unconditionally consent
to the exclusive jurisdiction of the courts of the States of Iowa and the
United States District Courts for Iowa for any action, suit or proceeding
arising out of or relating to this Agreement and the transaction contemplated
hereby, and agree not to commence any such action, suit or proceeding except in
such courts. The parties hereto further hereby irrevocably and unconditionally
waive any objection to the laying of venue of any action, suit or proceeding
arising out of or relating to this Agreement and the transaction contemplated
hereby in courts referenced in this Section 11.2 under the applicable
circumstances, and hereby further irrevocably and unconditionally waive and
agree not to plead or claim in any such court that any such action, suit or
proceeding brought in any such court has been brought in an inconvenient forum.
Each of the parties hereto further agrees that service of any process, summons,
notice or document by U.S. registered mail to its address set forth herein
shall be effective service of process for any action, suit or proceeding
brought against it in any such court.

   11.3 Notices. Any notice, request, demand or other communication required or
permitted hereunder shall be in writing and shall be deemed to have been given
if delivered or sent by facsimile transmission, upon receipt, if sent by
overnight courier, upon the day following the day sent, or if sent by
registered or certified mail, upon the sooner of the date on which receipt is
acknowledged or the expiration of three days after deposit in United States
Post Office facilities properly addressed with postage prepaid. All notices to
a party will be sent to the addresses set forth below or to such other address
or person as such party may designate by notice to each other party hereunder:

    To Buyer:

      CE Software Holdings, Inc.
      1801 Industrial Circle, P.O. Box 65580
      West Des Moines, IA 50265
      Attn: Christian Gurney, President
      Facsimile: 515-224-0141

    With a copy to:

      Davis, Brown, Koehn, Shors and Roberts,
      P.C.
      2500 Financial Center
      Des Moines, IA 50309
      Attn: Donald J. Brown
      Facsimile: 515-243-0654

    To ATIO and Stockholders:

      7031 Ohms Lane, Suite 600
      Minneapolis, MN 55439

    With a copy to:

      Dorsey & Whitney LLP
      Pillsbury Center South
      220 South Sixth Street
      Minneapolis, Minnesota 55402-1498
      Attn: Thomas Martin
      Facsimile: 612-340-8738

    To Venturian:

      11111 Excelsior Blvd.
      Hopkins, MN 55343
      Attn: Gary B. Rappaport
      Facsimile: 970-920-1950

                                      A-31
<PAGE>

    To Atio Corporation (Pty) Ltd:

      P.O. Box 4467
      Rivibua 2128
      Johannesburg, South Africa
      Attn: Eric Bauser and Gary Craul
      Facsimile: 001-27-11-807-3568

    To CC Management, LLC:

      5353 Wayzata Boulevard
      Suite 205
      Minneapolis, MN 55416
      Attn: John Mason
      Facsimile: 612-344-069

    With a copy to:

      Charles P. Brink, Esq.
      4700 Norwest Center
      90 South Seventh Street
      Minneapolis, MN 55402-4118
      Facsimile: 612-344-0699

Any notice given hereunder may be given on behalf of any party by his counsel
or other authorized representatives.

   11.4 Entire Agreement. This Agreement, including the Schedules and Exhibits
referred to herein and the other writings specifically identified herein or
contemplated hereby, is complete, reflects the entire agreement of the parties
with respect to its subject matter, and supersedes all previous written or oral
negotiations, commitments and writings; provided, however, that that certain
Agreement Regarding Confidential Information entered into on August 25, 1999
between Buyer and ATIO shall remain in full force and effect notwithstanding
the execution of this Agreement. No promises, representations, understandings,
warranties and agreements have been made by any of the parties hereto except as
referred to herein or in such Schedules and Exhibits or in such other writings;
and all inducements to the making of this Agreement relied upon by either party
hereto have been expressed herein or in such Schedules or Exhibits or in such
other writings.

   11.5 Assignability; Binding Effect. This Agreement shall not be assignable
by any party without the consent of all other parties. This Agreement shall be
binding upon and enforceable by, and shall inure to the benefit of, the parties
hereto and their respective successors and permitted assigns.

   11.6 Captions and Gender. The captions in this Agreement are for convenience
only and shall not affect the construction or interpretation of any term or
provision hereof. The use in this Agreement of the masculine pronoun in
reference to a party hereto shall be deemed to include the feminine or neuter,
as the context may require.

   11.7 Execution in Counterparts. For the convenience of the parties and to
facilitate execution, this Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which shall
constitute one and the same document.

   11.8 Amendments. This Agreement may not be amended or modified, nor may
compliance with any condition or covenant set forth herein be waived, except by
a writing duly and validly executed by each party hereto, or in the case of a
waiver, the party waiving compliance.

   11.9 Publicity and Disclosures. No press releases or public disclosure,
either written or oral, of the transactions contemplated by this Agreement,
shall be made by a party to this Agreement without the prior knowledge and
written consent of Buyer. Buyer shall confer with ATIO prior to the issuance of
any such releases or public disclosures.

                                      A-32
<PAGE>

   11.10 Definition of "Knowledge". The terms "knowledge" and "knowingly" as
used in this Agreement with respect to Venturian, shall mean actual knowledge
of Gary Rappaport or Stephen Schmidt, without any obligation to investigate.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                      A-33
<PAGE>

   IN WITNESS WHEREOF the parties hereto have caused this Agreement to be
executed as of the date set forth above by their duly authorized
representatives.

BUYER: CE SOFTWARE HOLDINGS, INC.

                                          By: _________________________________
                                          Name:
                                          Title:

ATIO: ATIO CORPORATION USA, INC.

                                          By: _________________________________
                                          Name:
                                          Title:

Atio International: ATIO INTERNATIONAL, INC.

                                          By: _________________________________
                                          Name:
                                          Title:

Atio (Pty): ATIO CORPORATION (PTY) LTD

                                          By: _________________________________
                                          Name:
                                          Title:

Venturian: VENTURIAN CORP.

                                          By: _________________________________
                                          Name:
                                          Title:

                                      A-34
<PAGE>

Convergent: CC MANAGEMENT, LLC

                                          By: _________________________________
                                          Name:
                                          Title:

                                          -------------------------------------
                                          Ilan Sharon

                                          -------------------------------------
                                          Willem Ellis

                                          -------------------------------------
                                          Bouwe Hamersma

                                          -------------------------------------
                                          Mark Chodos

                                      A-35
<PAGE>

                                 EXHIBIT 1.1.4

                                                                     Page 1 of 1

                      FORM OF CERTIFICATE OF AMENDMENT OF
                    RESTATED CERTIFICATE OF INCORPORATION OF
                           CE SOFTWARE HOLDINGS, INC.

   CE Software Holdings, Inc., a corporation organized and existing under and
by virtue of the General Corporation Law of the State of Delaware, does hereby
certify:

   FIRST: That Article I of the Restated Certificate of Incorporation of the
Corporation shall be amended to read as follows:

                                "ARTICLE I--NAME

   The name of the Corporation is                    ."

   SECOND: That Section 4.1 of Article 4 of the Restated Certificate of
Incorporation of the Corporation shall be amended to read as follows:

                           "ARTICLE 4--CAPITAL STOCK

   4.1 The aggregate number of shares the corporation has authority to issue
shall be 10,000,000 shares of the par value of $.01 shall be designated as
Common Stock."

   THIRD: That the aforesaid amendments were duly adopted in accordance with
Section 242(b)(1) of the General Corporation Law of the State of Delaware at
the special meeting of the stockholders held on            , 2000.

   FOURTH: That the aforesaid amendment shall be effective upon filing with the
Delaware Secretary of State.

   CE Software Holdings, Inc. has caused this Certificate to be signed on this
     day of        , 2000 by its Secretary and authorized officer,
            , who acknowledges that his signature is the act and deed of the
corporation and that the facts stated herein are true.

                                          CE Software Holdings, Inc.

                                          By___________________________________
                                                                  , Secretary

                                      A-36
<PAGE>

                                  EXHIBIT 1.2

                         FORM OF LETTER OF TRANSMITTAL
                                      AND
                     STOCKHOLDER INDEMNIFICATION AGREEMENT

   THIS LETTER OF TRANSMITTAL AND STOCKHOLDER INDEMNIFICATION AGREEMENT (this
"Agreement") is entered into as of        ,    , by and among CE Software
Holdings, Inc., a Delaware corporation (the "Company"), and the undersigned
stockholder (the "Stockholder") of Atio Corporation USA, Inc., a Minnesota
corporation ("Atio").

   WHEREAS, on       ,    , the Company and Atio entered into an Agreement and
Plan of Merger (the "Merger Agreement"), pursuant to which Atio is merging with
and into the Company and the Stockholder is receiving shares of the Company's
Common Stock in exchange for the Stockholder's shares of the capital stock of
Atio or warrants or other rights to acquire capital stock of Atio; and

   WHEREAS, it is a condition precedent to the Closing (as defined in the
Merger Agreement) and a material inducement to the Company entering into the
transactions contemplated by the Merger Agreement that the Stockholder enter
into this Agreement with the Company.

   NOW, THEREFORE, in consideration of the foregoing, the covenants herein
contained, and other valuable consideration, the receipt and adequacy of which
are hereby acknowledged, the parties hereto do hereby agree as follows:

   1. Definitions. Capitalized terms used herein and not otherwise defined
shall have the meanings ascribed to such terms in the Merger Agreement.

   2. Representations and Warranties of the Stockholder. The Stockholder hereby
makes to the Company each of the representations and warranties set forth in
this Section 2.

     (a) Atio Shares. The Stockholder owns of record and beneficially the
  number of the Atio Shares or warrants set forth on Schedule 2.3 of the
  Merger Agreement either under the caption, "Shares Outstanding", or under
  the caption, "Shares to be issued upon closing". Such Atio Shares are free
  and clear of any and all liens, encumbrances, charges or claims (except as
  may be created by the Stockholder's approval of the Merger).

     (b) Authority. The Stockholder has full right, authority, power and
  capacity to enter into this Agreement and each agreement, document and
  instrument to be executed and delivered by or on behalf of the Stockholder
  in connection with the Merger and to carry out the transactions
  contemplated by the Merger Agreement. This Agreement and each agreement,
  document and instrument executed and delivered by the Stockholder in
  connection with the Merger constitutes a valid and binding obligation of
  the Stockholder, enforceable in accordance with their respective terms. The
  execution, delivery and performance of this Agreement by the Stockholder
  and each such agreement, document and instrument to be executed by the
  Stockholder:

       (i) does not and will not violate any laws of the United States or
    any state or other jurisdiction applicable to the Stockholder, or
    require the Stockholder to obtain any approval, consent or waiver from,
    or make any filing with, any person or entity (governmental or
    otherwise) that has not been obtained or made; or

       (ii) result in the creation or imposition of any mortgage, pledge,
    lien, security interest or other charge or encumbrance on the Atio
    Shares owned by the Stockholder.

     (c) Finder's Fee. The Stockholder has not incurred or become liable for
  any broker's commission or finder's fee relating to or in connection with
  the transactions contemplated by the Merger Agreement.

                                      A-37
<PAGE>

     (d) Agreements. Except as set forth on a Schedule to the Merger
  Agreement, the Stockholder is not a party to any non-competition, trade
  secret or confidentiality agreement affecting or relating to the business
  conducted by Atio with any party other than Atio. There are no agreements
  or arrangements not contained herein or disclosed on a Schedule to the
  Merger Agreement, to which the Stockholder is a party relating to the
  business of Atio or to the Stockholder's rights and obligations as a
  stockholder, director or officer of Atio. If the Stockholder is or has been
  a party to any agreement providing preemptive rights or other special
  rights to purchase stock of Atio, the Stockholder agrees and acknowledges
  that it has either exercised or waived all such rights and consents to the
  termination of all such preemptive or other rights. Except as set forth on
  the signature page hereto or a schedule to the Merger Agreement, the
  Stockholder does not own, directly or indirectly, to such Stockholder's
  knowledge, on an individual or joint basis, any material interest in, or
  serve as an officer or director of, any material customer, competitor or
  supplier of Atio, or any organization which has a contract with Atio. The
  Stockholder has not at any time transferred any of the stock of Atio held
  by or for such holder to any employee of Atio, which transfer constituted
  or could be viewed as compensation for services rendered to Atio by said
  employee. The execution, delivery and performance of this Agreement will
  not violate or result in a default or acceleration of any obligation under
  any current contract, agreement, indenture or other instrument involving
  Atio to which the Stockholder is a party.

     (e) Investment Representation. (i) Unless otherwise indicated on the
  signature page hereto, the Stockholder is an "accredited investor" as
  defined in Regulation D under the Securities Act of 1933 (the "Securities
  Act").

       (ii) The Stockholder has read or reviewed and is familiar with the
    Buyer SEC Documents.

       (iii) The Stockholder has had an opportunity to ask questions of and
    receive answers from the Company, or a person or persons acting on the
    Company's behalf, concerning the terms and conditions of the Buyer
    Common Shares.

       (iv) The Stockholder understands that neither the Buyer Common
    Shares nor the offer and sale thereof has been or will be registered
    under the Securities Act or the securities laws of any state, and that
    while the Company may in the future register the Buyer Common Shares,
    it is under no obligation to do. The Stockholder acknowledges and is
    aware that there are substantial restrictions on the transferability of
    the Buyer Common Shares and that the Buyer Common Shares may not be
    sold, offered for sale or transferred for an indefinite period of time
    unless and until (i) a registration statement with respect thereto is
    in effect under the Securities Act and applicable state laws or (ii)
    the Stockholder shall establish to the satisfaction of the Company and
    its counsel that the proposed transaction is exempt from registration
    under the Securities Act and applicable state laws or that registration
    under the Securities Act and applicable state laws is not required. The
    foregoing restrictions and provisions shall apply to any subsequent
    holder or transferee of any Buyer Common Shares. The Stockholder
    acknowledges that and agrees that the certificate(s) representing the
    Buyer Common Shares to be issued to the Stockholder hereunder shall
    bear a legend substantially in the following form:

    "THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
    SECURITIES ACT OF 1933 AND MAY NOT BE OFFERED, SOLD, TRANSFERRED,
    HYPOTHECATED OR OTHERWISE ASSIGNED EXCEPT PURSUANT TO (1) A
    REGISTRATION STATEMENT WITH RESPECT TO SUCH SECURITIES WHICH IS
    EFFECTIVE UNDER SUCH ACT OR (2) AN AVAILABLE EXEMPTION FROM
    REGISTRATION UNDER SUCH ACT RELATING TO THE DISPOSITION OF SUCH
    SECURITIES.

       (v) The Stockholder represents that the Buyer Common Shares are
    being acquired solely for the Stockholder's own account, for investment
    and not with a view to or for the resale, distribution, subdivision or
    fractionalization thereof; the Stockholder has no present plans to
    enter into any contract, undertaking, agreement or arrangement relating
    thereto.

                                      A-38
<PAGE>

       (vi) The Stockholder, either alone or in connection with a
    designated adviser to the Stockholder, has such knowledge and
    experience in financial and business matters that the Stockholder is
    capable of evaluating the relative risks and merits of the Buyer Common
    Shares.

   3. Indemnification by the Stockholder. The Stockholder agrees subsequent to
the Closing Date to indemnify and hold harmless the Company from and against
and in respect of all Losses sustained, suffered or incurred by or made against
the Company, arising out of or based upon any breach of any covenant or
agreement made by the Stockholder in this Agreement. This indemnification is in
addition to and not in lieu of any indemnification agreement made by the
Stockholder in the Merger Agreement.

   4. No Indemnification or Contribution by Atio. No Stockholder shall have any
right of indemnity or contribution from Atio (or any successor thereto) with
respect to the breach by the Stockholder of any representation or warranty
under this Agreement or with respect to the breach by Atio of any
representation or warranty under the Merger Agreement.

   5. Surrender of Certificates Representing Atio Stock. The undersigned hereby
surrenders the certificate(s) representing shares of common stock (the "Atio
Shares") of Atio pursuant to the Agreement and Plan of Merger for the purpose
of receiving in exchange (a) a certificate representing the number of whole
shares of common stock of the Company, that is equal to the product of
0.06444777 multiplied by the number of shares represented by the stock
certificate(s) surrendered and (b) if and to the extent a fractional Share
results from the preceding calculation, a cash payment equal to $6.48
multiplied by such fraction.

   6. Miscellaneous. (a) Notices. All notices and other communications provided
for or permitted hereunder shall be in writing and shall be deemed to have been
duly given if delivered personally or sent by facsimile, registered or
certified mail (return receipt requested), postage prepaid, or courier or
overnight delivery service to the Company at the following addresses and to the
Stockholder at the address set forth on the signature page to this Agreement
(or at such other address for any party as shall be specified by like notice,
provided that notices of a change of address shall be effective only upon
receipt thereof):

    IF TO THE COMPANY:

      CE Software Holdings, Inc.
      1801 Industrial Circle, P.O. Box 65580
      West Des Moines, IA 50205
      Attn: President

    With a copy to:

      Davis, Brown, Koehn, Shors & Roberts, P.C.
      2500 Financial Center
      Des Moines, IA 50309
      Attn: Donald J. Brown

     (b) Governing Law. This Agreement shall be governed and construed and
  enforced in accordance with the internal laws of the State of Iowa without
  regard to its rules concerning conflicts of law.

     (c) Entire Agreement. The terms of this Agreement and the Merger
  Agreement are intended by the parties as a final expression of their
  agreement with respect to such terms as are included in this Agreement and
  the Merger Agreement and may not be contradicted by evidence of any prior
  or contemporaneous agreement.

     (d) Modifications and Amendments. This Agreement may not be modified,
  amended, changed or supplemented, nor may any obligations hereunder be
  waived, except by written instrument signed by each of the parties.

     (e) Successors and Assigns. This Agreement and the provisions hereof
  shall be binding upon each of the parties, their successors and assigns.

                                      A-39
<PAGE>

     (f) Assignment. This Agreement and the rights, duties and obligations
  hereunder may not be assigned by any party without the prior written
  consent of each other party hereto.

     (g) Non-Waiver of Rights. The failure or delay of any party in the
  exercise of any right given to such party hereunder shall not constitute a
  waiver of its rights, nor shall any single or partial exercise of any right
  preclude other or further exercise thereof or of any other right.

     (h) Specific Performance; Severability. It is specifically understood
  and agreed that any breach of the provisions of this Agreement will result
  in irreparable injury to the Company, that the remedy at law alone will be
  an inadequate remedy for such breach and that, in addition to any other
  remedy the Company may have, the Company shall be entitled to enforce the
  specific performance of this Agreement by and to seek both temporary and
  permanent injunctive relief without the necessity of proving actual damages
  to prevent any violation of the Stockholder's obligations hereunder. In
  case any of the provisions contained in this Agreement shall for any reason
  be held to be invalid, illegal or unenforceable in any respect, any such
  invalidity, illegality or unenforceability shall not affect any other
  provision of this Agreement, but this Agreement shall be construed as if
  such invalid, illegal or unenforceable provision had been limited or
  modified (consistent with its general intent) to the extent necessary to
  make it valid, legal and enforceable, or if it shall not be possible to so
  limit or modify such invalid, illegal or unenforceable provision or part of
  a provision, this Agreement shall be construed as if such invalid, illegal
  or unenforceable provision or part of a provision had never been contained
  in this Agreement.

     (i) Counterparts. This Agreement may be executed in one or more
  counterparts, each of which shall be deemed an original, but all of which
  together shall constitute one and the same agreement.

                                      A-40
<PAGE>

   IN WITNESS WHEREOF the parties hereto have executed and delivered this
Stockholder Indemnification Agreement as of the day and year first written
above.

COMPANY: CE SOFTWARE HOLDINGS, INC.

                                          By: _________________________________
                                          Name:
                                          Title:

                                      A-41
<PAGE>

STOCKHOLDER:

                              Substitute Form W-9

                  Stockholder's Name:
                                          -------------------------------------

               Stockholder's Address:
                                          -------------------------------------

         Stockholder's Telephone No.:     (   )
                                          -------------------------------------

               Stockholder's Address:
                                          -------------------------------------

      Atio Shares held by Stockholder
                      (number/class):
                                          -------------------------------------

 Stockholder's Social Security Number
    or Employer Identification Number
                                          -------------------------------------

   Certification:--Under penalties of
             perjury, I certify that:
                                          1. The information provided above on
                                          this Substitute Form W-9 is true,
                                          complete and correct.

                                          2. I am not subject to backup
                                          withholding because (a) I am exempt
                                          from backup withholding, or (b) I
                                          have not been notified by the
                                          Internal Revenue Service that I am
                                          subject to backup withholding as a
                                          result of a failure to report all
                                          interest or dividends, or (c) the
                                          Internal Revenue Service has
                                          notified me that I am no longer
                                          subject to backup withholding.

          Certification Instructions:     You must cross out item 2 above if
                                          you have been notified by the
                                          Internal Revenue Service that you
                                          are currently subject to backup
                                          withholding because of
                                          underreporting interest or dividends
                                          on your tax return.

                           Signature:
                                          -------------------------------------

                                Date:                   , 2000

                                Note:     Failure to complete and return this
                                          Substitute Form W-9 may result in
                                          backup withholding of any payments
                                          made to you.

 Check box if Stockholder is not an "accredited investor" (see Section 2(e)(i)
                                  above): [_]

                                      A-42
<PAGE>

                                  EXHIBIT 5.4

                            FORM OF ESCROW AGREEMENT

   THIS ESCROW AGREEMENT ("Agreement") is made and entered into this       day
of           ,     , by and between Robert A. Simons, Esq., of West Des Moines,
Iowa ("Escrow Agent"), CE Software Holdings, Inc., ("Company"), a Delaware
corporation and CE Software, Inc., an Iowa corporation ("Company Sub").

                                  WITNESSETH:

   WHEREAS, the Company has entered into a Merger Agreement dated
(the "Merger Agreement,") a copy of which shall be delivered to the Escrow
Agent with this Escrow Agreement on the date hereof; and

   WHEREAS, capitalized terms used herein and not otherwise defined herein
shall have the same meaning as in the Merger Agreement; and

   WHEREAS, the Merger Agreement provides that the stock of Company Sub shall
be distributed by the Company to its stockholders immediately prior to the
Effective Time of the Merger, and that the Company shall, at the Effective Time
of the Merger, deposit cash in the amount equal to the maximum amount payable
to the Company pursuant to the exercise of all then outstanding stock options
(excluding options with an exercise price of $20.00 per share or more)
described on Schedule 5.3 of the Merger Agreement ("Outstanding Options") which
may be exercised within three months after the Closing Date, to be held in
escrow pursuant to the terms of this Escrow Agreement (the "Escrow Account")
with the Escrow Agent until the Company receives cash on account of the
exercise of Outstanding Options; and

   WHEREAS, the Escrow Agent is willing to serve in such capacity upon the
terms and conditions set forth below.

   NOW, THEREFORE, the parties agree as follows:

   1. Escrow Agent acknowledges the receipt of funds ("Escrow Funds") in the
amount of $         to be held by the Escrow Agent in the Escrow Account
pending the earlier of (a) receipt of written notices as hereinafter provided
that the Company has received funds from the exercise of Outstanding Options,
or (b) the expiration of the 120 day period commencing following the Effective
Time (the "Expiration Date").

   2. The Escrow Funds in the Escrow Account shall be deposited in an account
or accounts maintained by Morgan Stanley Dean Witter, West Des Moines, Iowa
("Dean Witter"). Escrow Agent makes no guarantee as to the rate of return to be
earned by such funds prior to the disbursement of the Escrow Funds to the
Company or to Company Sub and makes no other representations or warranties
regarding this Escrow Agreement, whatsoever.

   3. Upon receipt of one or more written notices (the "Receipt Notices") from
Dean Witter or the Company that the Company has been credited with or has
received funds in an amount specified in the Receipt Notice, the Escrow Agent
will release and disburse or cause to be released and disbursed an equivalent
amount of the Escrow Funds to Company Sub. As soon as practicable after the
Expiration Date the Escrow Agent shall release and disburse or cause to be
released and disbursed to the Company the remainder of the Escrow Funds and all
accrued interest or other income, unless Company Sub shall have previously
notified the Escrow Agent and the Company that it requests an accounting of the
receipt of funds from the exercise of Outstanding Options.

   4. Upon receipt of Receipt Notice the Escrow Agent shall prepare and send
(or cause to be prepared and sent) a check in an amount equal to the funds
received by or for the credit of the Company upon exercise of Outstanding
Options to Company Sub.

                                      A-43
<PAGE>

   5. On the Expiration Date all remaining Escrow Funds shall be delivered to
the Company.

   6. The Escrow Agent undertakes to perform only the duties expressly set
forth in this document. The Escrow Agent shall not be bound by any waiver,
modification, amendment, termination, cancellation or revision of this Escrow
Agreement, unless the foregoing is in writing, signed by the Treasurer on
behalf of the Company, and the prior consent of the Escrow Agent has been
obtained. The Escrow Agent shall not be bound by any assignment of the rights,
duties or obligations under this Escrow Agreement by any party unless the
Escrow Agent receives prior written notification of such assignment and the
Escrow Agent gives prior written consent to such assignment. The Escrow Agent
shall perform any act ordered by a Court of competent jurisdiction.

   7. The Company hereby agrees to indemnify the Escrow Agent for, and to hold
such Escrow Agent harmless against, any and all fees, expenses, claims, suits,
actions, proceedings, investigations, judgments, arbitration decisions,
deficiencies, damages, awards, settlements, reasonable legal fees and expenses
of attorney(s) chosen by the Escrow Agent, and liabilities and expenses
incurred based upon, but not limited to, a mistake of fact or law, any act,
performance, non-performance, alleged act, alleged omission, actual omission,
act or omission based upon the advice of counsel or any other cause committed
while performing any and all duties in connection with and under this Escrow
Agreement. In addition, the Escrow Agent shall receive full indemnification
protection when relying upon any certificate, instruction, document, signature
believed by the Escrow Agent to be genuine, or any assumption by the Escrow
Agent that any person purporting to give the Escrow Agent any of the foregoing
in accordance with the provisions herein has been duly authorized to do so.
However, such indemnity for the Escrow Agent will not be provided in situations
based upon willful misconduct or negligence by the Escrow Agent.

   8. This Escrow Agreement hereby grants to the Escrow Agent a lien on the
Escrow Funds to enable the Escrow Agent to secure the aforementioned indemnity.
Such lien is not Escrow Agent's sole remedy in case of breach of the indemnity.

   9. The Escrow Agent shall be under no duty to institute or defend any type
of proceeding which may arise regarding this Escrow Agreement. However, the
Escrow Agent may, in utilizing the Escrow Agent's discretion and at the expense
of the Company herein, institute or defend such proceeding.

   10. The Escrow Agent may resign and be discharged from the duties and
obligations under this Escrow Agreement at any time by giving no less than
fifteen (15) days written notice of such resignation to the Company and Company
Sub specifying the date when such resignation shall take effect. Thereafter,
the Escrow Agent shall have no further obligation, except to hold the Escrow
Fund. In the event of such resignation, the Company and Company Sub shall
appoint a Successor Escrow Agent within fifteen (15) days of notice of such
resignation. The Escrow Agent shall refrain from taking any action until such
Escrow Agent has received written instructions from the Company and Company Sub
designating the Successor Escrow Agent. Upon receipt of such instruction, the
Escrow Agent shall promptly deliver all of the Escrow Funds to such Successor
Escrow Agent in accordance with such instructions. Upon receipt of the Escrow
Funds, the Successor Escrow Agent shall be bound by all the provisions herein
and shall promptly deliver a written instrument to the Company and Company Sub
detailing the terms on which the Successor Escrow Agent agrees to be bound.

   11. All notices, requests, demands, instructions, certificates, documents or
other communications under this Escrow Agreement shall be in writing and shall
be given by registered or certified mail with return receipt requested and
postage prepaid, by telecopy (or like transmission) or by personal delivery to
the parties at the following addresses:

    ESCROW AGENT:

      Robert A. Simons, Esq. 5400 University Avenue West Des Moines, IA
      50265

                                      A-44
<PAGE>

    COMPANY:

      CE Software Holdings, Inc. Attn: President 1801 Industrial Circle
      P.O. Box 65580 West Des Moines, IA 50265

    COMPANY SUB:

      CE Software, Inc. Attn: President
      1801 Industrial Circle
      P.O. Box 65580
      West Des Moines, IA 50265

   12. The Company agrees to pay the Escrow Agent a reasonable fee for its
services as Escrow Agent.

   IN WITNESS WHEREOF, the parties hereto have caused this Escrow Agreement to
be executed as of the date first above written.

                                          _____________________________________
                                          Robert A. Simons

                                          CE Software Holdings, Inc.

                                          By: _________________________________
                                                            , Treasurer

                                          CE Software, Inc.

                                          By: _________________________________
                                                            , President

                                      A-45
<PAGE>

                                  Exhibit 7.3

             CC Management LLC ("Convergent") Bridge Loan Agreement

   The parties to this Agreement have agreed to further amend the Loan
Agreement dated as of March 12, 1999, as amended by the Loan Restructure
Agreement dated as of June 16, 1999 between Convergent and ATIO. This exhibit
sets forth the general terms of this required amendment to be effective with
the signing of this Agreement.

   (a) The $1,350,000 loan would be extended to June 30, 2001. The interest
rate will be 9% with interest payable monthly. Interest on this loan in arrears
as of the date of the merger shall be paid by ATIO. The extended due date of
June 30, 2001, would be automatically extended to January 1, 2002, if at least
$2.5 million has not been raised in new funding (in cash) pursuant to sections
7.10, 7.11 and 7.14 by May 31, 2000.

   (b) The Convergent debt would be convertible into registered common stock at
$8.00 per share through June 30, 2001. This conversion would result in an
additional 168,750 shares of the Surviving Corporation. The Surviving
Corporation must give a 30-day notice prior to prepaying the loan to give
Convergent the opportunity to convert. If the maturity date is extended to
January 1, 2002, then the period in which conversion could occur shall be
similarly extended.

   (c) The debt would continue to have its existing security agreement which
includes a first lien on the intellectual property. The security agreement
would be pari passu to security arrangements on bridge loans from Buyer and
Venturian pursuant to section 7.12.

   (d) Immediately after the Closing Time Convergent's 5.7% non-dilutable
warrant which was to be effective until ATIO had $10,000,000 in new funding
would converted into 176,301 shares of the Surviving Corporation.

                                      A-46
<PAGE>

                                  EXHIBIT 7.8

                            FORM OF LOCKUP AGREEMENT

                                           , 1999

CE Software Holdings, Inc.
1801 Industrial Circle, P.O.Box 65580
West Des Moines, IA 50265

   Gentlemen:

   The undersigned, with respect to any shares of common stock ("Shares") of CE
Software Holdings, Inc., a Delaware corporation (the "Company") acquired by the
undersigned pursuant to the merger (the "Merger") of ATIO Corporation USA,
Inc., a Minnesota corporation ("ATIO") into the Company, understands that the
Company is proceeding to agree to issue the Shares pursuant to a merger
agreement between and among the Company, ATIO and certain other individuals and
companies (the "Merger Agreement"), including options to be granted pursuant to
stock option plans of the Company.

   In order to induce you to proceed with the Merger Agreement, the undersigned
agrees, for the benefit of the Company and ATIO, that should the Merger be
effectuated, he will not, without your prior written consent, sell, transfer or
otherwise dispose of, or agree to sell, transfer or otherwise dispose of any
Shares acquired by the undersigned pursuant to the Merger or sell or grant
options, rights or warrants with respect to such Shares during the period of
six months after the Merger; provided, however, that such restriction shall not
apply to twenty-five percent (25%) of the shares which the undersigned is or
will be entitled to purchase pursuant to any existing ATIO stock option plan
upon the occurrence of the Merger.

Dated:                ,

                                          Very truly yours,

                                          _____________________________________

                                      A-47
<PAGE>

                                  EXHIBIT 7.10

                       FORM OF VENTURIAN PLEDGE AGREEMENT

   THIS PLEDGE AGREEMENT ("Agreement") made as of the         day of        ,
     by and between CE Software Holdings, Inc., a Delaware corporation with its
principal office at 1801 Industrial Circle, West Des Moines, Iowa 50265
("Pledgee"), and Venturian Corporation, a Minnesota corporation with its
principal office at                        ("Pledgor").

   Capitalized terms used herein and not otherwise defined have the meaning as
defined in the Agreement and Plan of Merger of even date herewith among
Pledgee, Pledgor and certain other parties (the "Merger Agreement").

   WHEREAS, Pledgor is a shareholder of Atio Corporation USA, Inc., a Minnesota
corporation ("Atio").

   WHEREAS, Pledgee and Atio are parties to the Merger Agreement. providing,
subject to the terms and conditions thereof, for the purchase by Pledgor of
148,900 shares of Buyer Common Stock at a price of $6.48 per share at the
Closing of the Merger;

   NOW, THEREFORE, to induce Pledgee to enter into the Merger Agreement, and
for other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, Pledgor has agreed to pledge and grant a security
interest in the Collateral (as herein defined). Accordingly, the parties hereto
agree as follows:

   Section 1. Definitions. The following terms shall have the meanings as
specified in this section:

     "Collateral" shall have the meaning ascribed thereto in Section 2
  hereof.

     "Default" shall mean any failure by Pledgor to purchase the aforesaid
  148,900 newly issued shares of Common Stock of the Buyer upon the Closing
  of the Merger as provided in Section 7.10 of the Agreement.

     "Secured Obligations" shall mean Pledgor's obligations to purchase the
  aforesaid 148,900 newly issued shares of Common Stock of the Buyer upon the
  Closing of the Merger as provided in Section 7.10 of the Agreement.

     "Uniform Commercial Code" shall mean the Uniform Commercial Code as in
  effect from time to time in the applicable jurisdiction.

   Section 2. The Pledge and Security Interest. As collateral security for the
prompt payment in full when due of the Secured Obligations, Pledgor hereby
pledges, grants, assigns, transfers, conveys and set over to Pledgee a security
interest in all of the Pledgor's right, title, and interest in 2,300,000 shares
of common stock with a par value of $.01 per share of Atio (the "Atio Shares")
and the certificates and instruments representing or evidencing the pledged
shares, and all dividends, cash, securities, interest, rights and other
property at any time and from time to time received, receivable or otherwise
distributed or distributable in respect of or in exchange for any or all of the
pledged shares; all other property hereafter delivered to Pledgee by Pledgor in
substitution for or in addition to any of the foregoing, all certificates and
instruments representing or evidencing such other property and all dividends,
cash, securities, interest, rights and other property at any time from time to
time received, receivable or otherwise distributed or distributable in respect
of or in exchange for or conversion of any of all thereof; and all proceeds of
all of the foregoing (all being collectively referred to herein as
"Collateral"). Pledgor covenants and agrees with Pledgee that Pledgor will not,
directly or indirectly, without prior written consent of the Pledgee, transfer
or sell any of the Collateral, or enter into any agreement which may result in
the transfer or sale of any of the Collateral. The Pledgor represents and
warrants that the Collateral is owned by the Pledgor free and clear of any lien
or encumbrance and that such Collateral is not subject to any restrictions as
to transfer, except those specifically disclosed in writing to Pledgee or such
as may be imposed by applicable law affecting transfers generally and those in
that certain Shareholder Agreement between Pledgor and the current shareholders
of Atio.

                                      A-48
<PAGE>


   Section 3. Further Assurances: remedies. In furtherance of the grant of the
pledge and security interest pursuant to Section 2 hereof, Pledgor hereby
agrees with Pledgee as follows:

   3.01 Delivery and Other Perfection. Pledgor shall:

     (a) deliver to the Pledgee, endorsed in blank for transfer or
  accompanied by duly executed shareholder interest powers or other
  instruments of assignment and transfers in such form and substance as
  Pledgee may request, and all stock certificates or other securities
  representing any of the Collateral; and

     (b) give, execute, deliver, file and/or record any financing statement,
  notice, instrument, document, agreement or other papers that may be
  necessary or desirable (in the judgment of the Pledgee) to create,
  preserve, perfect or validate the security interest granted pursuant hereto
  or to enable Pledgee to exercise and enforce its rights hereunder with
  respect to such pledge and security interest.

   3.02 Other Financing Statements. Without the prior written consent of the
Pledgee, Pledgor shall not file or suffer to be on file, or authorize or permit
to be filed or to be on file, in any jurisdiction, any financing statement or
like instrument with respect to the Collateral in which Pledgee is not named as
the sole secured party for the benefit of the Pledgee.

   3.03 Preservation of Rights. Pledgee shall not be required to take steps
necessary to enforce or preserve any rights under any contract, instrument, or
agreement included in the Collateral.

   3.04 Rights Regarding Collateral. So long as no default shall have occurred
and be continuing, Pledgor shall have the right to exercise all of its voting,
consensual and other powers of ownership pertaining to the Collateral for all
purposes not inconsistent with the terms of this Agreement, or the Merger
Agreement, and shall be entitled to receive, spend and otherwise utilize all
distributions with respect to the Collateral; provided, however, that Pledgor
agrees that it will not vote the Collateral in any manner that is inconsistent
with the terms of this Agreement or the Merger Agreement. Pledgee shall execute
and deliver to Pledgor or cause to be executed and delivered to Pledgor all
such proxies, powers of attorney, distribution checks (duly endorsed to
Pledgor), and other orders, and all such instruments, without recourse, as
Pledgor may reasonably request for the purpose of enabling it to exercise its
rights and powers which it is entitled to exercise pursuant to this Section
3.04.

   3.05 Defaults. Upon the occurrence of default by Venturian under this
agreement or Section 7.10 of the Merger Agreement:

     (a) Pledgee shall have all of the rights and remedies with respect to
  the Collateral of a secured party under the Uniform Commercial Code (and to
  the extent permitted by applicable law, whether or not said Code is in
  effect in the jurisdiction where the rights and remedies are asserted);

     (b) Pledgee in its discretion may, in its name or in the name of Pledgor
  or otherwise, demand, sue for, collect or receive any money or property at
  any time payable or receivable on account of or in exchange for or in
  conversion of any of the Collateral, but shall be under no obligation to do
  so; and

     (c) Pledgee may, upon fifteen (15) Business Days prior written notice to
  Pledgor of the time and place, with respect to the Collateral or any part
  thereof which shall then be or shall thereafter come into the possession,
  custody or control of Pledgee or any of its agents, in its absolute and
  sole discretion, either (i) deliver the shares of Buyer Common Stock
  issuable in exchange for the Atio Shares pursuant to the Merger Agreement
  (together with the certificate(s) representing such Buyer Common Stock) to
  Pledgee, free and clear of this Agreement, and cancel such shares of Buyer
  Common Stock, returning them to the status of authorized but unissued
  common stock of Pledgee; or (ii) exercise its rights under the Uniform
  Commercial Code against the Collateral.

     Pledgor acknowledges and agrees that the remedies hereinabove provided
  have been specifically negotiated and that the right granted in
  subparagraph (c)(i) above, if exercised by Pledgee, represents the agreed
  upon exclusive remedy available to Pledgee as liquidated damages payable to
  Pledgee as a result of the breach by Pledgor of its obligation to purchase
  shares of stock of Pledgor as provided in the Merger Agreement, and that
  such liquidated damages represents a fair and reasonable estimate of the
  damage that would be incurred by Pledgee as a result of the failure of
  Pledgor to make such investment.

                                      A-49
<PAGE>

   3.06 Removals, Etc. Pledgor shall not maintain any of its books and records
with respect to the Collateral at any office other than its office as set forth
above as of the date hereof or maintain its office or its principal place of
business at any other place other than at such location without giving thirty
(30) days prior written notice to the Pledgee.

   3.07 Application of Proceeds. Except as otherwise herein expressly provided,
the proceeds of any collection, sale or other realization of all or any part of
the Collateral, and any other cash at the time held by Pledgee under this
Section 3, shall be applied by the Pledgee:

     First, to the payment of the costs and expenses of such collection, sale
  or other realization, including reasonable compensation to Pledgee and its
  agents and counsel, and all expenses, and advances made or incurred by
  Pledgee in connection therewith;

     Second, to the payment in full of the Secured Obligations described in
  Section 1 hereof; and

     Finally, to the payment to Pledgor, or his successors or assigns, or as
  a court of competent jurisdiction may direct, of any surplus then
  remaining.

As used in this Section 3, "proceeds" of Collateral shall mean cash, securities
and other property realized with respect to, and distributions in kind of or in
exchange for, Collateral, including any thereof received under the Merger
Agreement or any reorganization, liquidation or adjustment of debt of Pledgor
or any issuer of or obligor on any of the Collateral.

   3.08 Attorney-in-Fact. Subject to Pledgee having first obtained any required
approval from regulatory agencies, without limiting any rights or powers
granted by this Agreement to Pledgee while no default has occurred and is
continuing, upon the occurrence and during the continuance of any default
Pledgee is hereby appointed the attorney-in-fact of Pledgor for the purpose of
carrying out the provisions of this Section 3 and taking any action and
executing any instruments which Pledgee may deem necessary or advisable to
accomplish the purposes hereof, which appointment as attorney-in-fact is
irrevocable and coupled with an interest, provided that Pledgee shall not take
any action pursuant to the authority granted to it in this Section 3.10 without
first notifying Pledgor in writing thereof. Without limiting the generality of
the foregoing, so long as Pledgee shall be entitled under this Section 3 to
make collections in respect of the Collateral, Pledgee shall have the right and
power to receive, endorse and collect all checks made payable to the order of
Pledgor representing any dividend, payment or other distribution in respect of
or in exchange for the Collateral or any part thereof and to give full
discharge for the same.

   Section 4. Miscellaneous.

   4.01 Initial Financing Statements. When requested by Pledgee, Pledgor shall
file such financing statements and other documents in such offices as Pledgee
may request to perfect the pledge and security interest granted by this
Agreement.

   4.02 Further Assurances. Pledgor agrees that, from time to time upon the
written request of the Pledgee, Pledgor will execute and deliver such further
documents and do such other acts and things as Pledgee may reasonable request
in order fully to effect the purposes of this Agreement.

   4.03 No Waiver. No failure on the part of Pledgee or any of its agents to
exercise, and no course of dealing with respect to, and no delay in exercising,
any right, power or remedy hereunder shall operate as a waiver thereof; nor
shall any single or partial exercise by Pledgee or any of its agents of any
right, power or remedy hereunder preclude any other or further exercise thereof
or the exercise of any other right, power or remedy. The remedies herein are
exclusive of any other remedies provided by law.

   4.04 Expenses. Pledgor agrees to pay to Pledgee all reasonable out-of-pocket
expenses (including reasonable expenses for legal services of every kind) of,
or incident to, the enforcement of any of the provisions of this Agreement, or
performance by Pledgee of any obligations of Pledgor with respect to the
Collateral which Pledgor has failed or refused to perform, or any actual or
attempted sale, or any exchange, enforcement, collection, compromise or
settlement with respect to any of the Collateral, and for the care of the
Collateral and defending or asserting rights and claims of Pledgee in respect
thereof, by litigation or otherwise and all such expenses shall be Secured
Obligations to Pledgee secured under Section 2 hereof.

                                      A-50
<PAGE>

   4.05 Taxes. Pledgor agrees to pay before delinquency any tax or other
governmental charge which is or can become due through assessment, distraint or
otherwise a lien on the Collateral and to pay any tax or other governmental
charge which may be levied on the transactions hereunder, provided that nothing
herein shall require Pledgor to pay any such tax or other governmental charge
with respect to which Pledgor is prosecuting in good faith appeal or other
proceedings shall have been fully bonded or otherwise effectively stayed.

   4.06 Termination. When all Secured Obligations shall have been paid in full,
this Agreement shall terminate, and Pledgee shall forthwith cause to be
assigned, transferred and delivered, against receipt but without any recourse,
warranty or representation whatsoever, any remaining Collateral and money
received in respect thereof, to or on the order of Pledgor.

   4.07 Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF IOWA, PROVIDED THAT AS TO COLLATERAL
LOCATED IN ANY JURISDICTION OTHER THAN THE STATE OF IOWA, PLEDGEE SHALL HAVE
ALL THE RIGHTS TO WHICH A SECURED PARTY UNDER THE LAWS OF SUCH JURISDICTION IS
ENTITLED.

   4.08 Notices. All notices, requests and other communications provided for
herein including, without limitation, any modifications of, or waivers,
requests or consents under, this Agreement shall be given or made in writing
(including, without limitation, by telecopy) and delivered to the intended
recipient at the address first set forth above or, as to any party, at such
other address as shall be designated by such party in a notice to each other
party. Except as otherwise provided in this Agreement, all such communications
shall be deemed to have been duly given when personally delivered or, in the
case of a telecopied or mailed notice, upon receipt, in each case given or
addressed as provided for herein. The Address for Notices of the respective
parties are on the first page of this Agreement.

   4.09 Waivers, etc. The terms of this Agreement may be waived, altered or
amended only by an instrument in writing duly executed by Pledgor and the
Pledgee.

   4.10 Headings. The headings and sub-headings contained in this agreement are
intended to be used for convenience only and do not constitute part of this
Agreement.

   4.11 Successors and Assigns. This Agreement shall be binding upon and inure
to the benefit of the respective successors and assigns of Pledgor, Pledgee and
each subsequent holder of the Secured Obligations (provided, however, that
Pledgor shall not assign or transfer its rights hereunder without the prior
written consent of the Pledgee).

   4.12 Counterparts. This Agreement may be executed in one or more
counterparts and all of such counterparts taken together shall constitute one
and the same instrument.

   IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
executed as of the day and year first above written.

Venturian Corporation                     CE Software Holdings, Inc.

By: _________________________________     By __________________________________
Title: ______________________________     Title: ______________________________

                                      A-51
<PAGE>

                                  EXHIBIT 7.11

                  FORM OF ATIO INTERNATIONAL PLEDGE AGREEMENT

   THIS PLEDGE AGREEMENT ("Agreement") made as of the           day of
             ,       by and between CE Software Holdings, Inc., a Delaware
corporation with its principal office at 1801 Industrial Circle, West Des
Moines, Iowa 50265 ("Pledgee"), and Atio International, Inc., a Delaware
corporation with its principal office at
                                                            ("Pledgor").

   Capitalized terms used herein and not otherwise defined have the meaning as
defined in the Agreement and Plan of Merger dated                   , 1999
among Pledgee, Pledgor and certain other parties (the "Merger Agreement").

   WHEREAS, Pledgor is a shareholder of Atio Corporation USA, Inc., a Minnesota
corporation ("Atio").

   WHEREAS, Pledgee and Atio are parties to the Merger Agreement, providing,
subject to the terms and conditions thereof, for the purchase by Pledgor of
314,062 shares of Buyer Common Stock at a price of $6.48 per share prior to May
31, 2000;

   NOW, THEREFORE, to induce Pledgee to enter into the Merger Agreement, and
for other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, Pledgor has agreed to pledge and grant a security
interest in the Collateral (as herein defined). Accordingly, the parties hereto
agree as follows:

   Section 1. Definitions. The following terms shall have the meanings as
specified in this section:

     "Collateral" shall have the meaning ascribed thereto in Section 2
  hereof.

     "Default" shall mean any failure by Pledgor to purchase the aforesaid
  314,062 shares as provided in Section 7.11 of the Merger Agreement.

   "Secured Obligations" shall mean the obligations of Pledgor to purchase the
aforesaid 314,062 shares as provided in Section 7.11 of the Merger Agreement.

   "Uniform Commercial Code" shall mean the Uniform Commercial Code as in
effect from time to time in the applicable jurisdiction.

   Section 2. The Pledge and Security Interest. As collateral security for the
prompt payment in full when due of the Secured Obligations, Pledgor hereby
pledges, grants, assigns, transfers, conveys and set over to Pledgee a security
interest in all of the Pledgor's right, title, and interest in 314,062 shares
of Buyer Common Stock issued to Pledgor at the Closing in exchange for shares
of common stock, $.01 par value per share, of Atio (the "Atio Shares") pursuant
to the terms of the Merger Agreement, and the certificates and instruments
representing or evidencing the pledged shares, and all dividends, cash,
securities, interest, rights and other property at any time and from time to
time received, receivable or otherwise distributed or distributable in respect
of or in exchange for any or all of the pledged shares; all other property
hereafter delivered to Pledgee by Pledgor in substitution for or in addition to
any of the foregoing, all certificates and instruments representing or
evidencing such other property and all dividends, cash, securities, interest,
rights and other property at any time from time to time received, receivable or
otherwise distributed or distributable in respect of or in exchange for or
conversion of any of all thereof; and all proceeds of all of the foregoing (all
being collectively referred to herein as "Collateral"). Pledgor covenants and
agrees with Pledgee that Pledgor will not, directly or indirectly, without
prior written consent of the Pledgee, transfer or sell any of the Collateral,
or enter into any agreement which may result in the transfer or sale of any of
the Collateral. The Pledgor represents and warrants that the Collateral is
owned by the Pledgor free and clear of any lien or encumbrance and that such
Collateral is not subject to any restrictions as to transfer, except those
specifically disclosed in writing to Pledgee or such as may be imposed by
applicable law affecting transfers generally, and those in that certain
Shareholder Agreement between Pledgor and the current shareholders of Atio.

                                      A-52
<PAGE>

   Section 3. Further Assurances: remedies. In furtherance of the grant of the
pledge and security interest pursuant to Section 2 hereof, Pledgor hereby
agrees with Pledgee as follows:

   3.01 Delivery and Other Perfection. Pledgor shall:

     (a) deliver to the Pledgee, endorsed in blank for transfer or
  accompanied by duly executed shareholder interest powers or other
  instruments of assignment and transfers in such form and substance as
  Pledgee may request, and all stock certificates or other securities
  representing any of the Collateral; and

     (b) give, execute, deliver, file and/or record any financing statement,
  notice, instrument, document, agreement or other papers that may be
  necessary or desirable (in the judgment of the Pledgee) to create,
  preserve, perfect or validate the security interest granted pursuant hereto
  or to enable Pledgee to exercise and enforce its rights hereunder with
  respect to such pledge and security interest.

   3.02 Other Financing Statements. Without the prior written consent of the
Pledgee, Pledgor shall not file or suffer to be on file, or authorize or permit
to be filed or to be on file, in any jurisdiction, any financing statement or
like instrument with respect to the Collateral in which Pledgee is not named as
the sole secured party for the benefit of the Pledgee.

   3.03 Preservation of Rights. Pledgee shall not be required to take steps
necessary to enforce or preserve any rights under any contract, instrument, or
agreement included in the Collateral.

   3.04 Rights Regarding Collateral. So long as no default shall have occurred
and be continuing, Pledgor shall have the right to exercise all of its voting,
consensual and other powers of ownership pertaining to the Collateral for all
purposes not inconsistent with the terms of this Agreement, or the Merger
Agreement, and shall be entitled to receive, spend and otherwise utilize all
distributions with respect to the Collateral; provided, however, that Pledgor
agrees that it will not vote the Collateral in any manner that is inconsistent
with the terms of this Agreement or the Merger Agreement. Pledgee shall execute
and deliver to Pledgor or cause to be executed and delivered to Pledgor all
such proxies, powers of attorney, distribution checks (duly endorsed to
Pledgor), and other orders, and all such instruments, without recourse, as
Pledgor may reasonably request for the purpose of enabling it to exercise its
rights and powers which it is entitled to exercise pursuant to this Section
3.04.

   3.05 Defaults. Upon the occurrence of default by Pledgor under this
Agreement or Section 7.11 of the Merger Agreement:

     (a) Pledgee shall have all of the rights and remedies with respect to
  the Collateral of a secured party under the Uniform Commercial Code (and to
  the extent permitted by applicable law, whether or not said Code is in
  effect in the jurisdiction where the rights and remedies are asserted);

     (b) Pledgee in its discretion may, in its name or in the name of Pledgor
  or otherwise, demand, sue for, collect or receive any money or property at
  any time payable or receivable on account of or in exchange for or in
  conversion of any of the Collateral, but shall be under no obligation to do
  so; and

     (c) Pledgee may, upon fifteen (15) Business Days prior written notice to
  Pledgor of the time and place, with respect to the Collateral or any part
  thereof which shall then be or shall thereafter come into the possession,
  custody or control of Pledgee or any of its agents, in its absolute and
  sole discretion, either (i) deliver the shares of Buyer Common Stock issued
  to Pledgor in exchange for the Atio Shares pursuant to the Merger Agreement
  (together with the certificate(s) representing such Buyer Common Stock) to
  Pledgee, free and clear of this Agreement, and cancel such shares of Buyer
  Common Stock, returning them to the status of authorized but unissued
  common stock of Pledgee, or (ii) exercise its rights under the Uniform
  Commercial Code against the Collateral.

     Pledgor acknowledges and agrees that the remedies hereinabove provided
  have been specifically negotiated and that the right granted in
  subparagraph (c)(i) above, if exercised by Pledgee, represents the agreed
  upon exclusive remedy available to Pledgor as liquidated damages payable to
  Pledgee as a result of the breach by Pledgor of its obligation to purchase
  shares of stock of Pledgor as provided in the Merger Agreement, and that
  such liquidated damages represents a fair and reasonable estimate of the
  damage that would be incurred by Pledgee as a result of the failure of
  Pledgor to make such investment.

                                      A-53
<PAGE>

   3.06 Removals, Etc. Pledgor shall not maintain any of its books and records
with respect to the Collateral at any office other than its office as set forth
above as of the date hereof or maintain its office or its principal place of
business at any other place other than at such location without giving thirty
(30) days prior written notice to the Pledgee.

   3.07 Application of Proceeds. Except as otherwise herein expressly provided,
the proceeds of any collection, sale or other realization of all or any part of
the Collateral, and any other cash at the time held by Pledgee under this
Section 3, shall be applied by the Pledgee:

     First, to the payment of the costs and expenses of such collection, sale
  or other realization, including reasonable compensation to Pledgee and its
  agents and counsel, and all expenses, and advances made or incurred by
  Pledgee in connection therewith;

     Second, to the payment in full of the Secured Obligations described in
  Section 1 hereof; and

     Finally, to the payment to Pledgor, or his successors or assigns, or as
  a court of competent jurisdiction may direct, of any surplus then
  remaining.

As used in this Section 3, "proceeds" of Collateral shall mean cash, securities
and other property realized with respect to, and distributions in kind of or in
exchange for, Collateral, including any thereof received under the Merger
Agreement or any reorganization, liquidation or adjustment of debt of Pledgor
or any issuer of or obligor on any of the Collateral.

   3.08 Attorney-in-Fact. Subject to Pledgee having first obtained any required
approval from regulatory agencies, without limiting any rights or powers
granted by this Agreement to Pledgee while no default has occurred and is
continuing, upon the occurrence and during the continuance of any default
Pledgee is hereby appointed the attorney-in-fact of Pledgor for the purpose of
carrying out the provisions of this Section 3 and taking any action and
executing any instruments which Pledgee may deem necessary or advisable to
accomplish the purposes hereof, which appointment as attorney-in-fact is
irrevocable and coupled with an interest, provided that Pledgee shall not take
any action pursuant to the authority granted to it in this Section 3.10 without
first notifying Pledgor in writing thereof. Without limiting the generality of
the foregoing, so long as Pledgee shall be entitled under this Section 3 to
make collections in respect of the Collateral, Pledgee shall have the right and
power to receive, endorse and collect all checks made payable to the order of
Pledgor representing any dividend, payment or other distribution in respect of
or in exchange for the Collateral or any part thereof and to give full
discharge for the same.

   Section 4. Miscellaneous.

   4.01 Initial Financing Statements. When requested by Pledgee, Pledgor shall
file such financing statements and other documents in such offices as Pledgee
may request to perfect the pledge and security interest granted by this
Agreement.

   4.02 Further Assurances. Pledgor agrees that, from time to time upon the
written request of the Pledgee, Pledgor will execute and deliver such further
documents and do such other acts and things as Pledgee may reasonable request
in order fully to effect the purposes of this Agreement.

   4.03 No Waiver. No failure on the part of Pledgee or any of its agents to
exercise, and no course of dealing with respect to, and no delay in exercising,
any right, power or remedy hereunder shall operate as a waiver thereof; nor
shall any single or partial exercise by Pledgee or any of its agents of any
right, power or remedy hereunder preclude any other or further exercise thereof
or the exercise of any other right, power or remedy. The remedies herein are
exclusive of any other remedies provided by law.

   4.04 Expenses. Pledgor agrees to pay to Pledgee all reasonable out-of-pocket
expenses (including reasonable expenses for legal services of every kind) of,
or incident to, the enforcement of any of the provisions of this Agreement, or
performance by Pledgee of any obligations of Pledgor with respect to the
Collateral which Pledgor has failed or refused to perform, or any actual or
attempted sale, or any exchange, enforcement, collection, compromise or
settlement with respect to any of the Collateral, and for the care of the
Collateral and defending or asserting rights and claims of Pledgee in respect
thereof, by litigation or otherwise and all such expenses shall be Secured
Obligations to Pledgee secured under Section 2 hereof.

                                      A-54
<PAGE>

   4.05 Taxes. Pledgor agrees to pay before delinquency any tax or other
governmental charge which is or can become due through assessment, distraint or
otherwise a lien on the Collateral and to pay any tax or other governmental
charge which may be levied on the transactions hereunder, provided that nothing
herein shall require Pledgor to pay any such tax or other governmental charge
with respect to which Pledgor is prosecuting in good faith appeal or other
proceedings shall have been fully bonded or otherwise effectively stayed.

   4.06 Termination. When all Secured Obligations shall have been paid in full,
this Agreement shall terminate, and Pledgee shall forthwith cause to be
assigned, transferred and delivered, against receipt but without any recourse,
warranty or representation whatsoever, any remaining Collateral and money
received in respect thereof, to or on the order of Pledgor.

   4.07 Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF IOWA, PROVIDED THAT AS TO COLLATERAL
LOCATED IN ANY JURISDICTION OTHER THAN THE STATE OF IOWA, PLEDGEE SHALL HAVE
ALL THE RIGHTS TO WHICH A SECURED PARTY UNDER THE LAWS OF SUCH JURISDICTION IS
ENTITLED.

   4.08 Notices. All notices, requests and other communications provided for
herein including, without limitation, any modifications of, or waivers,
requests or consents under, this Agreement shall be given or made in writing
(including, without limitation, by telecopy) and delivered to the intended
recipient at the address first set forth above or, as to any party, at such
other address as shall be designated by such party in a notice to each other
party. Except as otherwise provided in this Agreement, all such communications
shall be deemed to have been duly given when personally delivered or, in the
case of a telecopied or mailed notice, upon receipt, in each case given or
addressed as provided for herein. The Address for Notices of the respective
parties are on the first page of this Agreement.

   4.09 Waivers, etc. The terms of this Agreement may be waived, altered or
amended only by an instrument in writing duly executed by Pledgor and the
Pledgee.

   4.10 Headings. The headings and sub-headings contained in this agreement are
intended to be used for convenience only and do not constitute part of this
Agreement.

   4.11 Successors and Assigns. This Agreement shall be binding upon and inure
to the benefit of the respective successors and assigns of Pledgor, Pledgee and
each subsequent holder of the Secured Obligations (provided, however, that
Pledgor shall not assign or transfer its rights hereunder without the prior
written consent of the Pledgee).

   4.12 Counterparts. This Agreement may be executed in one or more
counterparts and all of such counterparts taken together shall constitute one
and the same instrument.

   IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
executed as of the day and year first above written.

Atio International, Inc.                  CE Software Holdings, Inc.

By: _________________________________
Title: ______________________________
                                          By: _________________________________
                                          Title: ______________________________

                                      A-55
<PAGE>

                                EXHIBIT 8.1(e)

                   FORM OF OPINION OF DORSEY & WHITNEY, LLP

                                          , 2000

  RE: Agreement and Plan of Merger by and among CE Software Holdings, Inc.
      and Atio Corporation USA, Inc. and others dated as of December   , 1999
      (the "Merger Agreement")

   Gentlemen:

   We have acted as legal counsel to Atio Corporation USA, Inc., a Minnesota
corporation ("Atio"), in connection with the Merger Agreement. This opinion is
being delivered to you pursuant to Section 8.1(e) of the Merger Agreement. All
capitalized terms are used herein as they are defined in the Merger Agreement
unless they are otherwise defined herein.

   We have been furnished with and have examined originals or copies,
certified or otherwise identified to our satisfaction, of the following:

     (i) an executed copy of the Merger Agreement, including the
  representations of Atio set forth therein;

     (ii) a certificate of the Secretary of Atio certifying as to Atio's
  Certificate of Incorporation, Atio's Bylaws, resolutions adopted by Atio's
  Board of Directors and stockholders in connection with this transaction,
  and the incumbency and signatures of the officers of Atio who signed the
  Merger Agreement and related documents;

     (iii) a certificate of the Secretary of State of the State of Minnesota
  as to the valid existence and corporate good standing of Atio in such
  jurisdiction; and

     (iv) the other documents delivered to you at the Closing pursuant to the
  Merger Agreement.

   In rendering these opinions, we have assumed the genuiness of all
signatures and the authenticity of all items submitted to us as originals and
the conformity with originals of all items submitted to us as copies. In
making our examination of documents, instruments, or certificates executed by
entities other than Atio, we have assumed: (i) that each such other entity had
the power to enter into and perform all its obligations thereunder; (ii) the
due authorization by each such entity of all requisite action and the
instruments and/or certificates by each such entity; and (iii) that such items
are the legal, valid and binding obligations of each such entity.

   As used in this opinion with respect to any matter, the qualifying phrase
"to our knowledge" or similar phrase means that no lawyer who has had active
involvement in negotiating or preparing the Merger Agreement or preparing this
opinion letter has actual awareness of the subject matter so qualified. In
this regard, it is noted that we have not made any special review,
investigation or search of any records of any court or administrative agency
in connection with rendering any opinion so qualified and no inference as to
any knowledge of factual matters should be drawn from our representation of
Atio.

   The opinion set forth in opinion paragraph 1 below as to the valid
existence and good standing of Atio is based solely upon the certificate
referred to in paragraph (ii) above, a copy of which has been delivered to you
and/or your legal counsel prior to or on the date hereof.

   As to all questions of fact material to such opinions, we have made no
independent investigation, and we have relied solely upon the representations
made in the Merger Agreement, and upon the certificates of officers of Atio
delivered to you pursuant to Section 8.1(d) of the Merger Agreement. We have
no knowledge of any reason to believe any such statement is false. We assume
the accuracy of factual matters therein contained. No opinion is expressed on
any issue of law other than those specifically set forth herein.

   Members of our firm are admitted to the bar in the State of Minnesota and
we express no opinion as to the laws of any other jurisdiction except the laws
of the United States of America. To the extent the matters covered hereby may
be affected by the laws of other jurisdictions, we express no opinion on the
laws of such

                                     A-56
<PAGE>

jurisdictions or on the extent to which an application of the laws of such
jurisdiction might affect the opinions expressed below. In addition, we express
no opinion as to the validity or binding nature of any choice of law provision
contained in the Merger Agreement or with respect to the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended.

   The opinions set forth below are further qualified in that: (i)
enforceability of the Merger Agreement may be limited by applicable bankruptcy,
insolvency, moratorium, reorganization, or similar laws from time to time in
effect or court decisions affecting creditors' rights generally and by
equitable limitations (whether raised at a proceeding in law or in equity) on
the availability of certain rights and remedies including specific enforcement;
(ii) rights to indemnification under the Merger Agreement may be limited by
federal or state securities laws or regulations and by public policy; and (iii)
the availability or enforceability of any particular remedy may be subject to
or affected by concepts of materiality, by principles of equity and by your
implied duty of good faith.

   Based on the foregoing, and in reliance thereon and subject to the
assumptions, qualifications, exceptions and limitations set forth in this
opinion, we are of the opinion that:

     1. Atio is a corporation duly incorporated, legally existing and in good
  standing under the laws of the State of Minnesota.

     2. Atio has requisite corporate power and authority to execute, deliver
  and perform the Merger Agreement and to consummate the transactions
  contemplated thereby. The execution, delivery and performance by Atio of
  the Merger Agreement have been duly and validly authorized by all necessary
  corporate action of Atio, and no further corporate proceedings on the part
  of Atio are required in connection therewith.

     3. The authorized capital stock of Atio as of                 , 1999 was
  as set forth in Section 2.3 of the Merger Agreement. No shares of capital
  stock of Atio are held as treasury shares. All of such shares have been
  duly authorized and are validly issued, fully paid and nonassessable. No
  stockholder of Atio has exercised any dissenting stockholder or appraisal
  rights with regard to the Merger. Except as set forth in the Schedules to
  the Merger Agreement, to our knowledge, no person, firm or corporation has
  any written or oral agreement, option, warrant, call, understanding,
  commitment, or any right or privilege capable of becoming a binding
  agreement, for the purchase or acquisition of additional shares of any
  class or series of capital stock of Atio, and, to our knowledge, Atio has
  not otherwise agreed or obligated itself to issue or sell any shares of its
  capital stock or to register any of such shares under the Securities Act of
  1933.

     4. The Merger Agreement has been duly executed and delivered by Atio.
  The Merger Agreement constitutes the legal, valid and binding obligation of
  Atio enforceable against it in accordance with its terms.

     5. The execution and delivery by Atio of the Merger Agreement and the
  consummation of the Merger: (i) do no violate any provision of the articles
  of incorporation or by-laws of Atio; (ii) do not violate any statute, rule
  or regulation applicable to Atio or its properties or, require Atio to
  obtain any approval, consent or waiver of, or to make any filing with, any
  governmental or regulatory agency or administrative body, or, to our
  knowledge, to obtain any other approval, consent or waiver of, or to make
  any other filing with, any other person or entity, in each case that has
  not been obtained or made other than the filing of the Certificate (or, in
  the case of Minnesota, Articles) of Merger with, and the approval thereof
  by, the Secretary of States of the States of Delaware and Minnesota; (iii)
  do not result in a breach of, constitute a default under, accelerate any
  obligation under or give rise to a right of termination of any contract or
  agreement known to us or any order, writ, judgment, injunction, decree,
  determination or arbitration award known to us to which Atio is a party or
  by which the property of Atio is bound or affected; and (iv) do not violate
  or conflict with any judgment known to us to which Atio is a party or by
  which any assets or properties of Atio are expressly bound.

                                      A-57
<PAGE>

     6. To our knowledge, there are no actions, suits, claims or proceedings
  pending or overtly threatened in writing against Atio, whether at law or in
  equity, or before or by any federal, state, municipal or other governmental
  body, which seeks to enjoin, restrain or prohibit or might result in
  damages in respect of, the Merger Agreement or the complete consummation of
  the transactions contemplated by the Merger Agreement.

     7. Upon the filing of the Certificate (or, in the case of Minnesota,
  Articles) of Merger with, and approval thereof by the Secretary of State of
  the States of Delaware and Minnesota, the Merger shall become effective in
  accordance with the terms of the Certificate of Merger, the Delaware
  General Corporation Law, the Articles of Merger and Chapter 302A of the
  Minnesota Statutes.

   We express no opinion in connection with the transactions contemplated by
the Merger Agreement other than those opinions expressed herein, and no opinion
may be implied or inferred, except as expressly set forth herein.

   The opinions set forth herein are as of the date hereof, and we disclaim any
undertaking or obligation to advise you of changes which may hereafter be
brought to our attention.

   This opinion is furnished only to you in connection with the Merger
Agreement and is solely for your benefit and the benefit of your successors and
assigns and may not be used, circulated quoted, relied upon or otherwise
referred to by any other person, firm or entity for any purpose except that you
may disclose and quote this opinion as required by law or by governmental,
legislative or other regulatory agencies having jurisdiction over you.

                                      A-58
<PAGE>

                                 EXHIBIT 8.1(h)

             FORM OF TRANSFEROR'S CERTIFICATE OF NON-FOREIGN STATUS

   Section 1445 of the Internal Revenue Code of 1986, as amended, provides that
transferee (buyer) of a U. S. real property interest must withhold tax if the
transferor (seller) is a foreign person. To inform CE Software Holdings, Inc.,
a Delaware corporation ("CE"), that withholding of tax is not required upon any
disposition of a U. S. real property interest pursuant to the Agreement and
Plan of Merger dated as of             , 1999, by and between CE and Atio
Corporation USA, Inc., a Minnesota corporation (the "Company"), I, the
President of the Company, hereby certify the following on behalf of the
Company:

       1. the Company is not a non-resident alien for purposes of U.S.
    income taxation;

       2. the Company's U.S. taxpayer identification number is
                ; and

       3. the Company's address is:


   I understand that this certification may be disclosed to the Internal
Revenue Service by CE and that any false statement I have made herein could be
punished by fine, imprisonment or both.

   Under penalty of perjury I declare that I have examined this Certificate and
to the best of my knowledge and belief it is true, correct and complete, and I
further declare that I have authority to sign this document on behalf of the
Company.

   Dated:

                                          Atio Corporation USA, Inc.

              , 2000
                                          By: _________________________________
                                          Name:
                                          Title:

                                      A-59
<PAGE>

                                EXHIBIT 8.2(c)

              FORM OF OPINION OF DAVIS, BROWN, KOEHN, SHORS, P.C.

                                        , 2000

  RE: Agreement and Plan of Merger by and between CE Software Holdings, Inc.
      and CE Corporation USA, Inc. dated as of     , 1999 (the "Merger
      Agreement")

Gentlemen:

   We have acted as legal counsel to CE Software Holdings, Inc., a Delaware
corporation ("CE"), in connection with the Merger Agreement. This opinion is
being delivered to you pursuant to Section 8.2(d) of the Merger Agreement. All
capitalized terms are used herein as they are defined in the Merger Agreement
unless they are otherwise defined herein.

   We have been furnished with and have examined originals or copies,
certified or otherwise identified to our satisfaction, of the following:

     (i) an executed copy of the Merger Agreement, including the
  representations of CE set forth therein;

     (ii) a certificate of the Secretary of CE certifying as to CE's
  Certificate of Incorporation, CE's Bylaws, resolutions adopted by CE's
  Board of Directors and stockholders in connection with this transaction,
  and the incumbency and signatures of the officers of CE who signed the
  Merger Agreement and related documents;

     (iii) a certificate of the Secretary of State of the State of Iowa as to
  the valid existence and corporate good standing of CE in such jurisdiction;
  and

     (iv) the other documents delivered to you at the Closing pursuant to the
  Merger Agreement.

   In rendering these opinions, we have assumed the genuiness of all
signatures and the authenticity of all items submitted to us as originals and
the conformity with originals of all items submitted to us as copies. In
making our examination of documents, instruments, or certificates executed by
entities other than CE, we have assumed: (i) that each such other entity had
the power to enter into and perform all its obligations thereunder; (ii) the
due authorization by each such entity of all requisite action and the
instruments and/or certificates by each such entity; and (iii) that such items
are the legal, valid and binding obligations of each such entity.

   As used in this opinion with respect to any matter, the qualifying phrase
"to our knowledge" or similar phrase means that no lawyer who has had active
involvement in negotiating or preparing the Merger Agreement or preparing this
opinion letter has actual awareness of the subject matter so qualified. In
this regard, it is noted that we have no made any special review,
investigation or search of any records of any court or administrative agency
in connection with rendering any opinion so qualified and no inference as to
any knowledge of factual matters should be drawn from our representation of
CE.

   The opinion set forth in opinion paragraph 1 below as to the valid
existence and good standing of CE is based solely upon the certificate
referred to in paragraph (ii) above, a copy of which has been delivered to you
and/or your legal counsel prior to or on the date hereof.

   As to all questions of fact material to such opinions, we have made no
independent investigation, and we have relied solely upon the representations
made in the Merger Agreement, and upon the certificates of officers of CE
delivered to you pursuant to Section 8.2(b) of the Merger Agreement. We have
no knowledge of any reason to believe any such statement is false. We assume
the accuracy of factual matters therein contained. No opinion is expressed on
any issue of law other than those specifically set forth herein.

                                     A-60
<PAGE>

   Members of our firm are admitted to the bar in the State of Iowa and we
express no opinion as to the laws of any other jurisdiction except the laws of
the United States of America and the General Corporation Law of the State of
Delaware (the "DGCL"). With respect to those opinions concerning the DGCL, you
are aware that we are not admitted to practice law in the State of Delaware and
that such opinions are based solely upon our review of the DGCL as in effect on
the date hereof. To the extent the matters covered hereby may be affected by
the laws of other jurisdictions, we express no opinion on the laws of such
jurisdictions or on the extent to which an application of the laws of such
jurisdiction might affect the opinions expressed below. In addition, we express
no opinion as to the validity or binding nature of any choice of law provision
contained in the Merger Agreement or with respect to the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended.

   The opinions set forth below are further qualified in that: (i)
enforceability of the Merger Agreement may be limited by applicable bankruptcy,
insolvency, moratorium, reorganization, or similar laws from time to time in
effect or court decisions affecting creditors' rights generally and by
equitable limitations (whether raised at a proceeding in law or in equity) on
the availability of certain rights and remedies including specific enforcement;
(ii) rights to indemnification under the Merger Agreement may be limited by
federal or state securities laws or regulations and by public policy; and (iii)
the availability or enforceability of any particular remedy may be subject to
or affected by concepts of materiality, by principles of equity and by your
implied duty of good faith.

   Based on the foregoing, and in reliance thereon and subject to the
assumptions, qualifications, exceptions and limitations set forth in this
opinion, we are of the opinion that:

     1. CE is a corporation duly incorporated, legally existing and in good
  standing under the laws of the State of Delaware.

     2. CE has requisite corporate power and authority to execute, deliver
  and perform the Merger Agreement and to consummate the transactions
  contemplated thereby. The execution, delivery and performance by CE of the
  Merger Agreement have been duly and validly authorized by all necessary
  corporate action of CE, and no further corporate proceedings on the part of
  CE are required in connection therewith.

     3. The authorized capital stock of CE as of             , 1999 was as
  set forth in Section 2.4 of the Merger Agreement. No shares of capital
  stock of CE are held as treasury shares. All of such shares have been duly
  authorized and are validly issued, fully paid and nonassessable. No person
  has exercised any dissenting stockholder or appraisal rights with regard to
  the Merger. Except as set forth in the Schedules to the Merger Agreement,
  to our knowledge, no person, firm or corporation has any written or oral
  agreement, option, warrant, call, understanding, commitment, or any right
  or privilege capable of becoming a binding agreement, for the purchase or
  acquisition of additional shares of any class or series of capital stock of
  CE, and, to our knowledge, CE has not otherwise agreed or obligated itself
  to issue or sell any shares of its capital stock or to register any of such
  shares under the Securities Act of 1933.

     4. The Merger Agreement has been duly executed and delivered by CE. The
  Merger Agreement constitutes the legal, valid and binding obligation of CE
  enforceable against it in accordance with its terms.

     5. The execution and delivery by CE of the Merger Agreement and the
  consummation of the Merger: (i) do no violate any provision of the articles
  of incorporation or by-laws of CE; (ii) do not violate any statute, rule or
  regulation applicable to CE or its properties or, require CE to obtain any
  approval, consent or waiver of, or to make any filing with, any
  governmental or regulatory agency or administrative body, or, to our
  knowledge, to obtain any other approval, consent or waiver of, or to make
  any other filing with, any other person or entity, in each case that has
  not been obtained or made other than the filing of the Certificate of
  Merger with, and the approval thereof by, the Secretary of States of the
  States of Delaware and Minnesota; (iii) do not result in a breach of,
  constitute a default under, accelerate any obligation under or give rise to
  a right of termination of any contract or agreement known to us or any
  order, writ,

                                      A-61
<PAGE>

  judgment, injunction, decree, determination or arbitration award known to
  us to which CE is a party or by which the property of CE is bound or
  affected; and (iv) do not violate or conflict with any judgment known to us
  to which CE is a party or by which any assets or properties of CE are
  expressly bound.

     6. To our knowledge, there are no actions, suits, claims or proceedings
  pending or overtly threatened in writing against CE, whether at law or in
  equity, or before or by any federal, state, municipal or other governmental
  body, which seeks to enjoin, restrain or prohibit or might result in
  damages in respect of, the Merger Agreement or the complete consummation of
  the transactions contemplated by the Merger Agreement.

     7. Upon the filing of the Certificate of Merger with, and approval
  thereof by, the Secretary of State of the States of Delaware and Minnesota,
  the Merger shall become effective in accordance with the terms of the
  Certificate of Merger, the Delaware General Corporation Law, the Articles
  of Merger and Chapter 302A of the Minnesota Statutes.

   We express no opinion in connection with the transactions contemplated by
the Merger Agreement other than those opinions expressed herein, and no opinion
may be implied or inferred, except as expressly set forth herein.

   The opinions set forth herein are as of the date hereof, and we disclaim any
undertaking or obligation to advise you of changes which may hereafter be
brought to our attention.

   This opinion is furnished only to you in connection with the Merger
Agreement and is solely for your benefit and the benefit of your successors and
assigns and may not be used, circulated quoted, relied upon or otherwise
referred to by any other person, firm or entity for any purpose except that you
may disclose and quote this opinion as required by law or by governmental,
legislative or other regulatory agencies having jurisdiction over you.

                                      A-62
<PAGE>

                                   APPENDIX B

Delaware General Corporation Law

(S) 262. Appraisal rights.
   (as published in http://www.lexislawpublishing.com)

   (a) Any stockholder of a corporation of this State who holds shares of stock
on the date of the making of a demand pursuant to subsection (d) of this
section with respect to such shares, who continuously holds such shares through
the effective date of the merger or consolidation, who has otherwise complied
with subsection (d) of this section and who has neither voted in favor of the
merger or consolidation nor consented thereto in writing pursuant to (S) 228 of
this title shall be entitled to an appraisal by the Court of Chancery of the
fair value of the stockholder's shares of stock under the circumstances
described in subsections (b) and (c) of this section. As used in this section,
the word "stockholder" means a holder of record of stock in a stock corporation
and also a member of record of a nonstock corporation; the words "stock" and
"share" mean and include what is ordinarily meant by those words and also
membership or membership interest of a member of a nonstock corporation; and
the words "depository receipt" mean a receipt or other instrument issued by a
depository representing an interest in one or more shares, or fractions
thereof, solely of stock of a corporation, which stock is deposited with the
depository.

   (b) Appraisal rights shall be available for the shares of any class or
series of stock of a constituent corporation in a merger or consolidation to be
effected pursuant to (S) 251 (other than a merger effected pursuant to
(S) 251(g) of this title), (S) 252, (S) 254, (S) 257, (S) 258, (S) 263 or
(S) 264 of this title:

     (1) Provided, however, that no appraisal rights under this section shall
  be available for the shares of any class or series of stock, which stock,
  or depository receipts in respect thereof, at the record date fixed to
  determine the stockholders entitled to receive notice of and to vote at the
  meeting of stockholders to act upon the agreement of merger or
  consolidation, were either

       (i) listed on a national securities exchange or designated as a
    national market system security on an interdealer quotation system by
    the National Association of Securities Dealers, Inc. or

       (ii) held of record by more than 2,000 holders; and further provided
    that no appraisal rights shall be available for any shares of stock of
    the constituent corporation surviving a merger if the merger did not
    require for its approval the vote of the stockholders of the surviving
    corporation as provided in subsection (f) of (S) 251 of this title.

     (2) Notwithstanding paragraph (1) of this subsection, appraisal rights
  under this section shall be available for the shares of any class or series
  of stock of a constituent corporation if the holders thereof are required
  by the terms of an agreement of merger or consolidation pursuant to
  (S)(S) 251, 252, 254, 257, 258, 263 and 264 of this title to accept for
  such stock anything except:

       a. Shares of stock of the corporation surviving or resulting from
    such merger or consolidation, or depository receipts in respect
    thereof;

       b. Shares of stock of any other corporation, or depository receipts
    in respect thereof, which shares of stock (or depository receipts in
    respect thereof) or depository receipts at the effective date of the
    merger or consolidation will be either listed on a national securities
    exchange or designated as a national market system security on an
    interdealer quotation system by the National Association of Securities
    Dealers, Inc. or held of record by more than 2,000 holders;

       c. Cash in lieu of fractional shares or fractional depository
    receipts described in the foregoing subparagraphs a. and b. of this
    paragraph; or

       d. Any combination of the shares of stock, depository receipts and
    cash in lieu of fractional shares or fractional depository receipts
    described in the foregoing subparagraphs a., b. and c. of this
    paragraph.

     (3) In the event all of the stock of a subsidiary Delaware corporation
  party to a merger effected under (S) 253 of this title is not owned by the
  parent corporation immediately prior to the merger, appraisal rights shall
  be available for the shares of the subsidiary Delaware corporation.

                                      B-1
<PAGE>

   (c) Any corporation may provide in its certificate of incorporation that
appraisal rights under this section shall be available for the shares of any
class or series of its stock as a result of an amendment to its certificate of
incorporation, any merger or consolidation in which the corporation is a
constituent corporation or the sale of all or substantially all of the assets
of the corporation. If the certificate of incorporation contains such a
provision, the procedures of this section, including those set forth in
subsections (d) and (e) of this section, shall apply as nearly as is
practicable.

   (d) Appraisal rights shall be perfected as follows:

     (1) If a proposed merger or consolidation for which appraisal rights are
  provided under this section is to be submitted for approval at a meeting of
  stockholders, the corporation, not less than 20 days prior to the meeting,
  shall notify each of its stockholders who was such on the record date for
  such meeting with respect to shares for which appraisal rights are
  available pursuant to subsection (b) or (c) hereof that appraisal rights
  are available for any or all of the shares of the constituent corporations,
  and shall include in such notice a copy of this section. Each stockholder
  electing to demand the appraisal of such stockholder's shares shall deliver
  to the corporation, before the taking of the vote on the merger or
  consolidation, a written demand for appraisal of such stockholder's shares.
  Such demand will be sufficient if it reasonably informs the corporation of
  the identity of the stockholder and that the stockholder intends thereby to
  demand the appraisal of such stockholder's shares. A proxy or vote against
  the merger or consolidation shall not constitute such a demand. A
  stockholder electing to take such action must do so by a separate written
  demand as herein provided. Within 10 days after the effective date of such
  merger or consolidation, the surviving or resulting corporation shall
  notify each stockholder of each constituent corporation who has complied
  with this subsection and has not voted in favor of or consented to the
  merger or consolidation of the date that the merger or consolidation has
  become effective; or

     (2) If the merger or consolidation was approved pursuant to (S) 228 or
  (S) 253 of this title, each constituent corporation, either before the
  effective date of the merger or consolidation or within ten days
  thereafter, shall notify each of the holders of any class or series of
  stock of such constituent corporation who are entitled to appraisal rights
  of the approval of the merger or consolidation and that appraisal rights
  are available for any or all shares of such class or series of stock of
  such constituent corporation, and shall include in such notice a copy of
  this section; provided that, if the notice is given on or after the
  effective date of the merger or consolidation, such notice shall be given
  by the surviving or resulting corporation to all such holders of any class
  or series of stock of a constituent corporation that are entitled to
  appraisal rights. Such notice may, and, if given on or after the effective
  date of the merger or consolidation, shall, also notify such stockholders
  of the effective date of the merger or consolidation. Any stockholder
  entitled to appraisal rights may, within 20 days after the date of mailing
  of such notice, demand in writing from the surviving or resulting
  corporation the appraisal of such holder's shares. Such demand will be
  sufficient if it reasonably informs the corporation of the identity of the
  stockholder and that the stockholder intends thereby to demand the
  appraisal of such holder's shares. If such notice did not notify
  stockholders of the effective date of the merger or consolidation, either

       (i) each such constituent corporation shall send a second notice
    before the effective date of the merger or consolidation notifying each
    of the holders of any class or series of stock of such constituent
    corporation that are entitled to appraisal rights of the effective date
    of the merger or consolidation or

       (ii) the surviving or resulting corporation shall send such a second
    notice to all such holders on or within 10 days after such effective
    date; provided, however, that if such second notice is sent more than
    20 days following the sending of the first notice, such second notice
    need only be sent to each stockholder who is entitled to appraisal
    rights and who has demanded appraisal of such holder's shares in
    accordance with this subsection.

  An affidavit of the secretary or assistant secretary or of the transfer
  agent of the corporation that is required to give either notice that such
  notice has been given shall, in the absence of fraud, be prima facie
  evidence of the facts stated therein. For purposes of determining the
  stockholders entitled to receive either notice, each constituent
  corporation may fix, in advance, a record date that shall be not more than
  10 days

                                      B-2
<PAGE>

  prior to the date the notice is given, provided, that if the notice is
  given on or after the effective date of the merger or consolidation, the
  record date shall be such effective date. If no record date is fixed and
  the notice is given prior to the effective date, the record date shall be
  the close of business on the day next preceding the day on which the notice
  is given.

   (e) Within 120 days after the effective date of the merger or consolidation,
the surviving or resulting corporation or any stockholder who has complied with
subsections (a) and (d) hereof and who is otherwise entitled to appraisal
rights, may file a petition in the Court of Chancery demanding a determination
of the value of the stock of all such stockholders. Notwithstanding the
foregoing, at any time within 60 days after the effective date of the merger or
consolidation, any stockholder shall have the right to withdraw such
stockholder's demand for appraisal and to accept the terms offered upon the
merger or consolidation. Within 120 days after the effective date of the merger
or consolidation, any stockholder who has complied with the requirements of
subsections (a) and (d) hereof, upon written request, shall be entitled to
receive from the corporation surviving the merger or resulting from the
consolidation a statement setting forth the aggregate number of shares not
voted in favor of the merger or consolidation and with respect to which demands
for appraisal have been received and the aggregate number of holders of such
shares. Such written statement shall be mailed to the stockholder within 10
days after such stockholder's written request for such a statement is received
by the surviving or resulting corporation or within 10 days after expiration of
the period for delivery of demands for appraisal under subsection (d) hereof,
whichever is later.

   (f) Upon the filing of any such petition by a stockholder, service of a copy
thereof shall be made upon the surviving or resulting corporation, which shall
within 20 days after such service file in the office of the Register in
Chancery in which the petition was filed a duly verified list containing the
names and addresses of all stockholders who have demanded payment for their
shares and with whom agreements as to the value of their shares have not been
reached by the surviving or resulting corporation. If the petition shall be
filed by the surviving or resulting corporation, the petition shall be
accompanied by such a duly verified list. The Register in Chancery, if so
ordered by the Court, shall give notice of the time and place fixed for the
hearing of such petition by registered or certified mail to the surviving or
resulting corporation and to the stockholders shown on the list at the
addresses therein stated. Such notice shall also be given by 1 or more
publications at least 1 week before the day of the hearing, in a newspaper of
general circulation published in the City of Wilmington, Delaware or such
publication as the Court deems advisable. The forms of the notices by mail and
by publication shall be approved by the Court, and the costs thereof shall be
borne by the surviving or resulting corporation.

   (g) At the hearing on such petition, the Court shall determine the
stockholders who have complied with this section and who have become entitled
to appraisal rights. The Court may require the stockholders who have demanded
an appraisal for their shares and who hold stock represented by certificates to
submit their certificates of stock to the Register in Chancery for notation
thereon of the pendency of the appraisal proceedings; and if any stockholder
fails to comply with such direction, the Court may dismiss the proceedings as
to such stockholder.

   (h) After determining the stockholders entitled to an appraisal, the Court
shall appraise the shares, determining their fair value exclusive of any
element of value arising from the accomplishment or expectation of the merger
or consolidation, together with a fair rate of interest, if any, to be paid
upon the amount determined to be the fair value. In determining such fair
value, the Court shall take into account all relevant factors. In determining
the fair rate of interest, the Court may consider all relevant factors,
including the rate of interest which the surviving or resulting corporation
would have had to pay to borrow money during the pendency of the proceeding.
Upon application by the surviving or resulting corporation or by any
stockholder entitled to participate in the appraisal proceeding, the Court may,
in its discretion, permit discovery or other pretrial proceedings and may
proceed to trial upon the appraisal prior to the final determination of the
stockholder entitled to an appraisal. Any stockholder whose name appears on the
list filed by the surviving or resulting corporation pursuant to subsection (f)
of this section and who has submitted such stockholder's certificates of stock
to the Register in Chancery, if such is required, may participate fully in all
proceedings until it is finally determined that such stockholder is not
entitled to appraisal rights under this section.

                                      B-3
<PAGE>

   (i) The Court shall direct the payment of the fair value of the shares,
together with interest, if any, by the surviving or resulting corporation to
the stockholders entitled thereto. Interest may be simple or compound, as the
Court may direct. Payment shall be so made to each such stockholder, in the
case of holders of uncertificated stock forthwith, and the case of holders of
shares represented by certificates upon the surrender to the corporation of the
certificates representing such stock. The Court's decree may be enforced as
other decrees in the Court of Chancery may be enforced, whether such surviving
or resulting corporation be a corporation of this State or of any state.

   (j) The costs of the proceeding may be determined by the Court and taxed
upon the parties as the Court deems equitable in the circumstances. Upon
application of a stockholder, the Court may order all or a portion of the
expenses incurred by any stockholder in connection with the appraisal
proceeding, including, without limitation, reasonable attorney's fees and the
fees and expenses of experts, to be charged pro rata against the value of all
the shares entitled to an appraisal.

   (k) From and after the effective date of the merger or consolidation, no
stockholder who has demanded appraisal rights as provided in subsection (d) of
this section shall be entitled to vote such stock for any purpose or to receive
payment of dividends or other distributions on the stock (except dividends or
other distributions payable to stockholders of record at a date which is prior
to the effective date of the merger or consolidation); provided, however, that
if no petition for an appraisal shall be filed within the time provided in
subsection (e) of this section, or if such stockholder shall deliver to the
surviving or resulting corporation a written withdrawal of such stockholder's
demand for an appraisal and an acceptance of the merger or consolidation,
either within 60 days after the effective date of the merger or consolidation
as provided in subsection (e) of this section or thereafter with the written
approval of the corporation, then the right of such stockholder to an appraisal
shall cease. Notwithstanding the foregoing, no appraisal proceeding in the
Court of Chancery shall be dismissed as to any stockholder without the approval
of the Court, and such approval may be conditioned upon such terms as the Court
deems just.

   (l) The shares of the surviving or resulting corporation to which the shares
of such objecting stockholders would have been converted had they assented to
the merger or consolidation shall have the status of authorized and unissued
shares of the surviving or resulting corporation.

(8 Del. C. 1953, (S) 262; 56 Del. Laws, c. 50; 56 Del. Laws, c. 186, (S) 24; 57
Del. Laws, c. 148, (S)(S) 27-29; 59 Del. Laws, c. 106, (S) 12; 60 Del. Laws, c.
371, (S)(S) 3-12; 63 Del. Laws, c. 25, (S) 14; 63 Del. Laws, c. 152, (S)(S) 1,
2; 64 Del. Laws, c. 112, (S)(S) 46-54; 66 Del. Laws, c. 136, (S)(S) 30-32; 66
Del. Laws, c. 352, (S) 9; 67 Del. Laws, c. 376, (S)(S) 19, 20; 68 Del. Laws, c.
337, (S)(S) 3, 4; 69 Del. Laws, c. 61, (S) 10; 69 Del. Laws, c. 262, (S)(S) 1-
9; 70 Del. Laws, c. 79, (S) 16; 70 Del. Laws, c. 186, (S) 1; 70 Del. Laws, c.
299, (S)(S) 2, 3; 70 Del. Laws, c. 349, (S) 22; 71 Del. Laws, c. 120, (S) 15;
71 Del. Laws, c. 339, (S)(S) 49-52.)

                                      B-4
<PAGE>

                                   APPENDIX C

                           CE SOFTWARE HOLDINGS, INC.

                             2000 STOCK OPTION PLAN

   THIS 2000 STOCK OPTION PLAN (the "Plan"), effective as of the date of its
approval by the Company's shareholders, the       day of               , 2000,
is hereby adopted and established by CE Software Holdings, Inc., a Delaware
corporation, (the "Company") and will be maintained by the Company for the
purpose of providing stock options for selected management, key employees,
Consultants and Non-Employee Directors as provided herein.

                               ARTICLE I--PURPOSE

   The purpose of the Plan is to promote the long-term success of the Company
and the creation of shareholder value by providing additional incentive to
those officers, employees, Consultants and Non-Employee Directors of the
Company and any Subsidiary whose substantial contributions are essential to the
continued growth and success of the business of the Company or Subsidiary in
order to strengthen their commitment to the Company or Subsidiary, to motivate
them to faithfully and diligently perform their assigned responsibilities and
to attract and retain competent and dedicated individuals whose efforts will
result in the long-term growth and profitability of the Company and its
Subsidiaries. To accomplish such purposes, the Plan provides that the Company
may grant Incentive Stock Options and Non-Qualified Stock Options.

                            ARTICLE II--DEFINITIONS

   2.01 Scope. For purposes of this Plan, unless the language or context
clearly indicates that a different meaning is intended, capitalized terms have
the meaning specified in this Article.

   2.02 Definitions. The following terms used in this Plan shall have the
following meanings:

   "Agreement" shall mean the written agreement evidencing the grant of an
Award and setting forth the terms and conditions thereof.

   "Award" shall mean, individually or collectively, a grant under this Plan to
any Eligible Person or Non-Employee Director of Incentive Stock Options, Non-
Qualified Stock Options or both as the context requires.

   "Board" shall mean the Board of Directors of the Company, as constituted
from time to time.

   "Change in Control" shall mean any one of the following events:

     (1) any "person" or group of persons acting in concert (as defined in
  Sections13(d) and 14(d) of the Exchange Act), other than the Company, or a
  trustee or other fiduciary holding securities under an employee benefit
  plan of the Company or any Subsidiary, acquires, directly or indirectly,
  after the Effective Date of this Plan "beneficial ownership" (as defined in
  Rule 13d-3 under the Exchange Act) of any class of securities (not
  including securities acquired in a transaction described in subsection (2)
  below) representing at least thirty percent (30%) of the combined voting
  power of the Company;

     (2) the stockholders of the Company approve a merger, consolidation,
  recapitalization or similar transaction, unless the persons who were
  shareholders immediately prior to such transaction will collectively own at
  least fifty percent (50%) of the combined voting power of all classes of
  stock of the Company (or of the surviving corporation in the event of a
  merger) outstanding immediately after such transaction; or

     (3) the stockholders of the Company approve a plan of complete
  liquidation of the Company or a sale of all or substantially all of the
  assets of the Company.

                                      C-1
<PAGE>

   "Code" shall mean the Internal Revenue Code of 1986, as amended, and the
regulations of the Department of Treasury promulgated pursuant thereto.

   "Committee" shall mean a committee designated by the Board to administer
the Plan and to perform the functions set forth herein.

   "Company" shall mean CE Software Holdings, Inc., a Delaware corporation, or
any successor thereto.

   "Consultant" shall mean an advisor or consultant who is an independent
contractor with respect to the Company or a Subsidiary, and who provides bona
fide services (other than in connection with the offer or sale of securities
in a capital raising transaction) to the Company or a Subsidiary; who is not
an employee, officer, or director of the Company or any of its Subsidiaries;
and whose services the Committee determines are of vital importance to the
overall success of the Company or any of its Subsidiaries.

   "Covered Employee" shall mean a covered employee within the meaning of
Section 162(m)(3) of the Code. By way of explanation, as of the date of
adoption of this Plan, a Covered Employee is generally defined in the Code to
include any person who is a company's CEO or who is one a company's four
highest paid officers during a particular fiscal year if all wages paid to
such person, including the taxable value of all exercised options, exceeds $1
million for that fiscal year.

   "Disability" shall mean, if the Participant is covered by an individual or
group long-term disability policy paid for by the Company or a Subsidiary,
disability as defined in such policy without regard to any waiting period. If
the Participant is not covered by such a policy, Disability means the
Participant suffering a sickness, accident or injury which in the judgment of
a physician satisfactory to the Company, prevents the Participant from
performing substantially all of his or her normal duties for the Company
and/or its Subsidiaries. As a condition to any benefits, the Company may
require the Participant to submit to such physical or mental evaluations and
tests as the Company deems appropriate. "Disabled" shall mean to suffer from a
Disability.

   "Effective Date" shall mean the date first written above on which this Plan
was adopted by the Board.

   "Eligible Person" shall have the meaning given to it by Article V.

   "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended.

   "Fair Market Value" shall mean the market price of a Share, determined by
the Committee in good faith on such basis as it deems appropriate; provided,
however, as long as the Shares are traded on the Nasdaq Stock Market or a
major exchange, the determination of Fair Market Value by the Committee shall
be the average of the high and low prices reported by Nasdaq or by such
exchange on the date of the grant, or if such date is not a trading date, on
the last trading date immediately prior to the date of grant. Such
determination shall be conclusive and binding on the Participant and all other
persons.

   "Incentive Stock Option" shall mean an Option within the meaning of Section
422 of the Code, or any successor provisions thereto.

   "Non-Employee Director" shall mean a director of the Company or a
Subsidiary that is not treated as a common-law employee of the Company or
Subsidiary.

   "Non-Qualified Stock Option" shall mean an Option that is not an Incentive
Stock Option.

   "Option" shall mean an Incentive Stock Option, a Non-Qualified Stock
Option, or either or both of them, as the context requires.

   "Participant" shall mean a person to whom an Award has been granted under
the Plan.


                                      C-2
<PAGE>

   "Plan" shall mean the CE Software Holdings, Inc. 2000 Stock Option Plan, as
amended or restated from time to time.

   "Retirement" shall mean termination of employment or services with the
Company or a Subsidiary by a Participant (other than as a result of death or
Disability), if the Participant is at least sixty-two (62) years of age.

   "Securities Act" shall mean the Securities Act of 1933, as amended.

   "Share" shall mean shares of common stock, $0.10 par value, of the Company.

   "Statement" shall have the meaning given to it by Section 7.03.

   "Subsidiary" shall mean any corporation in a descending, unbroken chain of
corporations, beginning with the Company, if each of the corporations other
than the last corporation in the unbroken chain owns stock possessing fifty
percent (50%) or more of the total combined voting power of all classes of
stock in one of the other corporations in such chain.

   "Ten-Percent Stockholder" shall mean an Eligible Person, who, at the time an
Incentive Stock Option is to be granted to such Eligible Person, owns (within
the meaning of Section 422(b)(6) of the Code) stock possessing more than ten
percent (10%) of the total combined voting power of all classes of stock of the
Company, a parent or a Subsidiary within the meaning of Sections 424(e) and
424(f), respectively, of the Code.

   "Transaction" shall have the meaning given to it by Section 9.03.

   "Vesting Date" shall mean March 31st, June 30th, September 30th and December
31st of each calendar year.

                          ARTICLE III--ADMINISTRATION

   3.01 Committee Administration. The Plan shall be administered by the
Committee. The Committee shall consist exclusively of two or more Company
directors who are Non-Employee directors, as defined in paragraph (b)(3)(i) of
Rule 16b-3, or any other successor rule thereto, under the Exchange Act.
Additionally, the Committee shall satisfy such requirements as the Internal
Revenue Service may establish for outside directors acting under plans intended
to qualify for exemption under Code Section 162(m)(4)(C), or any successor
provision thereto. The Committee shall hold meetings at such times as may be
necessary for the proper administration of the Plan. The Committee shall keep
minutes of its meetings. A majority of the Committee shall constitute a quorum
and a majority of a quorum may authorize any action. Any decision reduced to
writing and signed by all of the members of the Committee shall be fully
effective as if it had been made at a meeting duly held. All actions,
determinations or interpretations made in good faith with respect to the Plan
or any Option shall be conclusive and binding on the Participants and all other
persons. The Company shall pay all expenses incurred in the administration of
the Plan.

   3.02 Powers. Subject to the express terms and conditions set forth herein,
the Committee shall have the power to perform any and all actions,
determinations and interpretations related to the administration of the Plan,
including, without limitation, the power from time to time:

     (a) to determine those Eligible Persons to whom Awards shall be granted
  under the Plan and the number of Shares subject to such Awards to be
  granted to each Eligible Person and to prescribe the terms and conditions
  (which need not be identical) of each Award, including the purchase price
  per share of each Award, and the forfeiture provisions, if any, if the
  Employee leaves the employment of the Company or a Subsidiary within a
  prescribed time or acts against the interests of the Company within a
  prescribed time;

                                      C-3
<PAGE>

     (b) to construe and interpret the Plan, the Awards granted hereunder and
  to establish, amend and revoke rules and regulations for the administration
  of the Plan, including, but not limited to, correcting any defect or
  supplying any omission, or reconciling any inconsistency in the Plan or in
  any Agreement, and (subject to the provisions of Article X below) to amend
  the terms and conditions of any outstanding Award to the extent such terms
  and conditions are within the discretion of the Committee as provided in
  the Plan, in the manner and to the extent it shall deem necessary or
  advisable to make the Plan fully effective;

     (c) to determine the duration and purposes for leaves of absence which
  may be granted to a Participant without constituting a termination of
  employment or service for purposes of the Plan;

     (d) to determine the terms and conditions of each Award granted to a
  Covered Employee so that the Company or Subsidiary may claim a tax
  deduction in connection with non-qualified options, or incentive options
  that have a non-qualified component; and

     (e) generally, to exercise such powers and to perform such acts as are
  deemed necessary or advisable to promote the best interests of the Company
  with respect to the Plan.

                       ARTICLE IV--STOCK SUBJECT TO PLAN

   4.01 Number of Shares. The maximum number of Shares that may be issued or
transferred pursuant to Awards granted under this Plan is seven hundred fifty
thousand (750,000) Shares of common stock (or the number and kind of shares of
stock or other securities that are substituted for those Shares or to which
those Shares are adjusted pursuant to Article IX), and the Company shall
reserve for the purposes of the Plan, out of its authorized but unissued
Shares, such number of Shares.

   4.02 Limitation. For a period of one year after the effective date of this
Plan, the number of Shares for which options may be granted by the Committee
shall not exceed the lesser of: (i) seven hundred fifty thousand (750,000) or
(ii) a number, when added together with 189,571 (representing options issued by
Atio Corporation USA, Inc. prior to its merger with the Company, after
conversion of such options into options to purchase the Shares of the Company),
would equal more than twenty-five per cent (25%) of the total outstanding and
issued Shares of the Company.

   4.03 Terminated Options. Whenever any outstanding Award or portion thereof
expires, is canceled or is otherwise terminated (other than by exercise of the
Award ), the Shares allocable to the unexercised portion of such Award may
again be the subject of Awards hereunder.

                             ARTICLE V--ELIGIBILITY

   Eligible Persons shall be the officers, employees and Consultants of the
Company and any Subsidiary who, in the view of the Committee, occupy
managerial, professional, or key positions, or who provide valuable services,
and who, in the view of the Committee, have the capability of making a
substantial contribution to the success of the Company. In making the selection
and in determining the form and amount of Awards, the Committee may give
consideration to the functions and responsibilities of the individual, past and
potential contributions to profitability and sound growth, the value of the
individual's services to the Company, and any other factors deemed relevant by
the Committee. The Committee shall have full and final authority on selecting
those Eligible Persons who will receive Awards, provided, however, only
individuals who are treated as common-law employees of the Company or any
Subsidiary pursuant to the relevant provisions of the Code may receive
Incentive Stock Options.

                                      C-4
<PAGE>

                              ARTICLE VI--OPTIONS

   The Committee may grant Options to any Eligible Person in accordance with
the Plan, the terms and conditions of which shall be set forth in an Agreement.
The provisions of the various Agreements entered into under the Plan need not
be identical. Each Option and Agreement shall be subject to the following
conditions:

   6.01 Purchase Price. The purchase price or the manner in which the purchase
price is to be determined for Shares under each Option shall be set forth in
the Agreement, provided, however, that the purchase price per Share under (a)
each Non-Qualified Stock Option shall not be less than eighty-five percent
(85%) of the Fair Market Value of a Share at the time the Option is granted,
(b) each Incentive Stock Option shall not be less than one hundred percent
(100%) of the Fair Market Value of a Share at the time the Option is granted,
(c) each Incentive Stock Option granted to a Ten-Percent Stockholder shall not
be less than one hundred ten percent (110%) of the Fair Market Value of a Share
at the time the Option is granted and (d) each Option granted to a Covered
Employee shall not be less than one hundred percent (100%) of the Fair Market
Value of a Share at the time the Option is granted. In the case of a Non-
Qualified Stock Option, an Agreement may specify a purchase price that varies
in accordance with a predetermined formula while the Non-Qualified Stock Option
is outstanding.

   6.02 Number of Shares. Each Agreement shall specify the number of Shares
subject to the Option.

   6.03 Duration. Options granted hereunder shall be for such term as the
Committee shall determine, provided, however, that no Incentive Stock Option
shall be exercisable after the expiration of ten (10) years from the date it is
granted, or five (5) years in the case of an Incentive Stock Option granted to
a Ten-Percent Stockholder. The Committee may, subsequent to the granting of any
Option, extend the term thereof but in no event shall the term as so extended
exceed the maximum term provided for in the preceding sentence.

   6.04 Non-transferability.

     (a) No Option granted hereunder shall be transferable by the Participant
  to whom such Option is granted otherwise than by will or the laws of
  descent and distribution. An Option may be exercised during the lifetime of
  such Participant only by the Participant, or the Participant's guardian or
  legal representative. The terms of such Option shall be binding upon the
  beneficiaries, executors, administrators, heirs, assignees and successors
  of the Participant.

     (b) At the discretion of the Committee and in accordance with the
  provisions of Section 14.03, any Agreement may provide for the designation
  of a beneficiary of the Participant, who may exercise the Option after the
  Participant's death and obtain the economic benefits thereof, subject to
  the consent of the Participant's spouse where required by law.

   6.05 Vesting. Subject to Section 6.06, and unless otherwise set forth in the
Agreement, each Option shall become exercisable as to eight and one-third
percent (8 1/3%) of the Shares covered by the Option on each Vesting Date
occurring after the date that the Option was granted until such time as the
Option becomes fully vested. To the extent not exercised, installments shall
accumulate and be exercisable, in whole or in part, at any time after becoming
exercisable, but not later than the date the Option expires. The Committee may
accelerate the exercisability of any Option or portion thereof at any time.

   6.06 Accelerated Vesting. Notwithstanding the provisions in Section 6.05,
each Option granted to a Participant shall become vested in full and
immediately exercisable upon the occurrence of a Change in Control and upon the
death, Retirement or Disability of the Participant.

   6.07 Termination of Employment. In the event that a Participant ceases to be
employed by, or ceases to provide services to, the Company and all
Subsidiaries, any outstanding Options held by such Participant shall, unless
this Plan or the Agreement evidencing such Option provides otherwise, terminate
as follows:

     (a) If the Participant's termination of employment is due to his or her
  death, Disability, or Retirement, the Option shall become vested in full
  and immediately exercisable for two (2) years after the Participant's last
  day of employment, and shall thereafter terminate; and

                                      C-5
<PAGE>

     (b) If the Participant's termination of employment is for any other
  reason (including a Participant's ceasing to be employed by a Subsidiary as
  a result of the sale of such Subsidiary or an interest in such Subsidiary),
  the Option shall be exercisable for a period of three (3) months after the
  Participant's last day of employment with the Company or its Subsidiary,
  and shall thereafter terminate.

   Notwithstanding the foregoing, the Committee may provide, either at the time
an Option is granted or thereafter, that the Option may be exercised after the
periods provided for in this Section, but in no event beyond the term of the
Option. Any portion of an Incentive Stock Option exercised more than one year
after the date of death or disability of the Participant, or three months after
termination of the employment of the Participant, shall become a Non-Qualified
Stock Option.

   6.08 Cancellation and Recision of Options. Unless the Agreement specifies
otherwise, the Committee may cancel and rescind any unexpired, unpaid,
unexercised, or deferred Options (whether vested or unvested pursuant to this
Article VI) at any time before the exercise thereof, if the Participant is not
in compliance with the following conditions:

     (a) A Participant shall not render services for any organization or
  engage directly or indirectly in any business which, in the judgment of the
  Committee, is or becomes competitive with the Company or any Subsidiary, or
  which organization or business, or the rendering of services to such
  organization or business, is or becomes prejudicial to or in conflict with
  the interests of the Company or any Subsidiary. For Participants whose
  employment has terminated, the judgment of the Committee shall be based on
  the Participant's position and responsibilities while employed by the
  Company or its Subsidiaries; the Participant's post-employment
  responsibilities and position with the other organization or business; the
  extent of past, current, and potential competition or conflict between the
  Company (or Subsidiary) and the other organization or business; the effect
  of the Participant's assuming the post-employment position on the Company's
  or its Subsidiary's customers, suppliers, and competitors; and such other
  considerations as are deemed relevant given the applicable facts and
  circumstances. A Participant may, however, purchase as an investment or
  otherwise, stock or other securities of any such organization or business
  so long as such stock or securities are publicly-traded and do not
  represent a greater than two percent (2%) equity interest in the
  organization or business.

     (b) A Participant shall not, without prior written authorization from
  the Company, disclose to anyone outside the Company or Subsidiaries, or use
  in other than the Company's or Subsidiary's business, any information or
  materials determined to be confidential by the Committee relating to the
  business of the Company or its Subsidiaries, acquired by the Participant
  either during or after employment with the Company or its Subsidiaries.

   6.09 Annual Limitation. To the extent that the aggregate Fair Market Value
(measured by the Fair Market Value of the Shares at the date of grant) of
Incentive Stock Options which become exercisable for the first time by any
Participant during any calendar year exceeds one hundred thousand dollars
($100,000), the excess of such Options shall be treated as Non-Qualified Stock
Options.

                     ARTICLE VII--PAYMENT FOR OPTION SHARES

   7.01 Method of Exercise. The exercise of an Option shall be made only by a
written notice delivered to the Secretary of the Company at the Company's
principal executive office, specifying the number of Shares to be purchased and
accompanied by payment therefor and otherwise in accordance with the Agreement
pursuant to which the Option was granted. The purchase price for any Shares
purchased pursuant to the exercise of an Option shall be paid in full upon such
exercise in cash, by check, or, at the discretion of the Committee and upon
such terms and conditions as the Committee shall approve, by any other method
approved by this Article. If requested by the Committee, the Participant shall
deliver the Agreement evidencing the Option to the Secretary of the Company who
shall endorse thereon a notation of such exercise and return such Agreement to
the Participant.

                                      C-6
<PAGE>

   7.02 Provision for Loans. Subject to the terms and conditions of this
Section and any rules that the Committee may impose from time to time, the
Company or any Subsidiary may make loans to a Participant in connection with
the exercise of an Option as follows:

     (a) Amount. No loan made under the Plan shall exceed the sum of (a) the
  aggregate purchase price payable pursuant to the Option with respect to
  which the loan is made, plus (b) if applicable, the amount of the
  reasonably estimated withholding taxes payable by the Participant with
  respect to the exercise of the Option. In no event may any such loan exceed
  the Fair Market Value, at the date of exercise, of the Shares received
  pursuant to such exercise, and if the Shares are newly issued, the par
  value of the Shares being purchased shall be paid in cash.

     (b) Term. No loan shall have an initial term exceeding five (5) years,
  provided, however, that loans under the Plan shall be renewable at the
  discretion of the Committee, and provided, however, that the indebtedness
  under each loan shall become due and payable, as the case may be, on a date
  no later than (a) one (1) year after termination of the Participant's
  employment due to Retirement, death or Disability, or (b) the date of
  termination of the Participant's employment for any reason other than
  Retirement, death or Disability.

     (c) Security. A loan shall have full recourse against the Participant
  and shall be secured by a pledge of Shares with a Fair Market Value of not
  less than the principal amount of the loan. After any repayment of a loan,
  pledged Shares no longer required as security may be released to the
  Participant.

     (d) Other Provisions. Every loan shall meet all applicable laws,
  regulations and rules of the Federal Reserve Board and shall satisfy the
  applicable laws and regulations under the Code for imputed interest.

   7.03 Alternative Payment Method. Subject to rules that the Committee may
impose from time to time, the Participant may pay for the purchase price of
Shares purchased pursuant to an exercise of an Option by using Shares already
owned and held for at least six (6) months, the Participant shall deliver a
notarized statement of ownership (hereinafter, "Statement"), in a form to be
determined by the Committee, to the Company indicating that the Participant
owns Shares of sufficient number and value to cover the purchase price of the
Shares purchased pursuant to the exercise of the Option. However, no surrender
of the actual stock certificates relating to the Shares listed in the Statement
is necessary. The number of Shares in the Statement will be treated as a
constructive payment of the purchase price, and the Participant shall retain
ownership of such Shares. The Company shall issue a stock certificate for a
number of Shares equal to the Shares purchased pursuant to the Option minus the
number of Shares used for the constructive payment. All Shares listed in the
Statement shall be valued at their Fair Market Value on the date that the
Option is exercised.

   7.04 Exercise/Sale. Subject to rules that the Committee may impose from time
to time, all or any part of the purchase price of Shares purchased pursuant to
an exercise of an Option and any related withholding taxes may be paid by
delivering (on a form prescribed by the Committee) an irrevocable direction to
a securities broker approved by the Committee to sell all or part of the Shares
being purchased and to deliver all or part of the sales proceeds to the
Company.

   7.05 Exercise/Pledge. Subject to rules that the Committee may impose from
time to time, all or any part of the purchase price of Shares purchased
pursuant to an exercise of an Option and any related withholding taxes may be
paid by delivering (on a form prescribed by the Committee) an irrevocable
direction to pledge all or part of the Shares being purchased to a securities
broker or lender approved by the Committee, as security for a loan, and to
deliver all or part of the loan proceeds to the Company.

   7.06 Rights of Participants. No Participant shall be deemed for any purpose
to be the owner of any Shares subject to any Option unless and until (a) the
Option shall have been exercised pursuant to the terms thereof, (b) the Company
shall have issued and delivered the Shares to the Participant, (c) the
Participant's name shall have been entered as a stockholder of record on the
books of the Company and (d) the provisions of Section 13.07 have been
satisfied. Thereupon, the Participant shall have full voting, dividend and
other ownership rights with respect to such Shares.

                                      C-7
<PAGE>

   ARTICLE VIII--NON-QUALIFIED STOCK OPTION GRANTS TO NON-EMPLOYEE DIRECTORS

   8.01 Initial Grants. Each Non-Employee Director who first becomes a member
of the Board or a board of a Subsidiary shall receive a one-time grant of a
Non-Qualified Stock Option of five thousand (5,000) Shares (subject to
adjustment under Article IX). Such Non-Qualified Stock Option shall be granted
on the date when such Non-Employee Director first becomes a member and shall
become exercisable as to twenty-five percent (25%) of the Shares covered by
such Option on each Vesting Date occurring after the date that the Option was
granted until such time as the Option becomes fully vested. To the extent not
exercised, installments shall accumulate and be exercisable, in whole or in
part, at any time after becoming exercisable, but not later than the date the
Option expires.

   8.02 Annual Grants. Upon the conclusion of each regular annual meeting of
the Company's stockholders held in the year 2000 or thereafter, each Non-
Employee Director who will continue serving as a member of the Board or a board
of a Subsidiary thereafter shall receive a Non-Qualified Stock Option covering
two thousand five hundred (2,500) Shares (subject to adjustment under Article
IX), provided, however, such Non-Qualified Stock Option shall not be granted in
the calendar year in which the same Non-Employee Director received the Non-
Qualified Stock Option described in Section 8.01. No portion of any Non-
Qualified Stock Options granted under this Section shall be exercisable until
the first anniversary of the date of grant, at which time they shall become
exercisable in full.

   8.03 Accelerated Exercisability. All Non-Qualified Stock Options granted to
a Non-Employee Director under this Article shall also become exercisable in
full in the event of:

     (a) The termination of such Non-Employee Director's service because of
  death, Disability or Retirement; or

     (b) A Change in Control with respect to the Company.

   8.04 Exercise Price. The Exercise Price under all Non-Qualified Stock
Options granted to a Non-Employee Director under this Article shall be equal to
one hundred percent (100%) of the Fair Market Value of a Share on the date of
grant, payable in one of the forms described in Article VII.

   8.05 Term. All Non-Qualified Stock Options granted to a Non-Employee
Director under this Article shall terminate on the earliest of (a) the 10th
anniversary of the date of grant, (b) the date three (3) months after the
termination of such Non-Employee Director's service for any reason other than
death, Disability or Retirement or (c) the date twenty-four (24) months after
the termination of such Non-Employee Director's service because of death,
Disability or Retirement.

   8.06 Affiliates of Outside Directors. The Committee may provide that the
Non-Qualified Stock Options that otherwise would be granted to a Non-Employee
Director under this Article shall instead be granted to an affiliate of such
Non-Employee Director. Such affiliate shall then be deemed to be a Non-Employee
Director for purposes of the Plan, provided, however, that the service-related
vesting and termination provisions pertaining to the Non-Qualified Stock
Options shall be applied with regard to the service of the Non-Employee
Director.

               ARTICLE IX--ADJUSTMENT AND MODIFICATION OF OPTIONS

   9.01 Change in Capitalization. In the event of any change in the outstanding
Shares of the Company by reason of a stock dividend, stock split,
recapitalization, merger, consolidation or combination (by reclassification or
otherwise), subdivision, exchange of shares or other similar corporate change,
the Committee shall make such adjustments as it, in its sole discretion, deems
appropriate in one or more of:

     (a) the aggregate number and kind of Shares issuable under the Plan
  pursuant to Article IV;

                                      C-8
<PAGE>

     (b) the number and kind of Shares covered by Awards made under the Plan;

     (c) the limitations set forth in Section 6.02;

     (d) the number of Non-Qualified Options to be granted to Non-Employee
  Directors pursuant to Article VIII; or

     (e) the exercise price under each outstanding Option.

Any fractional Share resulting from any such adjustment shall be rounded up to
the nearest whole Share. The adjustment provided for by this Section shall be
conclusive and binding on all Participants and all other persons.

   9.02 Incentive Stock Options. Any such adjustment in the Shares or other
securities subject to outstanding Incentive Stock Options (including any
adjustments in the purchase price) shall be made in such manner as not to
constitute a modification as defined by Section 424(h)(3) of the Code and only
to the extent otherwise permitted by Sections 422 and 424 of the Code.

   9.03 Exercise after a Transaction. In the event of any liquidation,
dissolution, merger, consolidation or other reorganization (collectively, a
"Transaction") of the Company, the Options and Agreements shall continue in
effect in accordance with their respective terms, except that following a
Transaction each Participant, upon the exercise of any Option, shall be
entitled to receive in respect of each Share subject to an Option the same
number and kind of stock, securities, cash, property or other consideration, as
the case may be, that each holder of a Share was entitled to receive in the
Transaction in respect of a Share.

   9.04 Modification and Assumption. Within the limitations of the Plan, the
Committee may modify, assume, cancel or accept the cancellation of Options in
return for the grant of new Options for the same or a different number of
Shares and at the same or a different exercise price, provided, however, no
modification, assumption or cancellation of an Option shall, without the
written consent of the Participant, impair the Participant's rights or increase
or decrease the Participant's obligations under such Option.

   9.05 Buyout Provisions. The Committee may at any time (a) offer to buy out
for a payment in cash or cash equivalents an Option previously granted or (b)
authorize a Participant to elect to cash out an Option previously granted, in
either case at such time and based upon such terms and conditions as the
Committee shall establish.

                ARTICLE X--TERMINATION AND AMENDMENT OF THE PLAN

   10.01 Termination or Amendment. No Incentive Stock Option shall be granted
on or after the tenth anniversary of the later of (a) the Effective Date of the
Plan or (b) the date when the Board adopted the most recent increase in the
number of Shares available under Article IV that was approved by the Company's
stockholders. Termination of the Plan and all amendments of the Plan shall be
subject to the approval of the Company's stockholders. No Awards shall be
granted after termination of the Plan.

   10.02 Effect of Amendment. Except as provided in Article IX hereof, rights
and obligations under any Award granted before any amendment of the Plan shall
not be adversely altered or impaired by such amendment, except with the consent
of the Participant.

                    ARTICLE XI--NON-EXCLUSIVITY OF THE PLAN

   The adoption of the Plan by the Board shall not be construed as amending,
modifying or rescinding any previously approved incentive or stock option
arrangement or as creating any limitations on the power of the Board to adopt
such other incentive or stock option arrangements as it may deem desirable,
including, without limitation, the granting of stock options otherwise than
under the Plan, and such arrangements may be either applicable generally or
only in specific cases.

                                      C-9
<PAGE>

                      ARTICLE XII--LIMITATION OF LIABILITY

   12.01 Limitation. As illustrative of the limitations of liability of the
Company, but not intended to be exhaustive thereof, nothing in the Plan shall
be construed to:

     (a) give any officer, employee, or Consultant any right to be granted an
  Award other than at the sole discretion of the Committee;

     (b) give any person any rights whatsoever with respect to Shares except
  as specifically provided in the Plan;

     (c) limit in any way the right of the Company or its Subsidiaries to
  terminate the employment or services of any person at any time; or

     (d) be evidence of any agreement or understanding, expressed or implied,
  that the Company, or its Subsidiaries, will retain the services of any
  person or employ any person in any particular position, at any particular
  rate of compensation or for any particular period of time.

   12.02 Liability and Indemnification.

     (a) Notwithstanding any provision herein to the contrary, neither the
  Company, any of its Subsidiaries nor any individual acting as an employee,
  agent, or director of the Company or any Subsidiary shall be liable to any
  Participant, former Participant, designated beneficiary, or any other
  person for any claim, loss, liability or expense incurred in connection
  with the Plan, unless attributable to fraud or willful misconduct on the
  part of the Company, Subsidiary or any such employee, agent, or director of
  the Company or Subsidiary.

     (b) The Company shall indemnify, to the fullest extent permitted by law,
  members of the Committee and directors and employees of the Company, both
  past and present, to whom are or were delegated duties, responsibilities or
  authority with respect to the Plan, against any and all claims, losses,
  liabilities, fines, penalties and expenses (including, but not limited to,
  all legal fees relating thereto), reasonably incurred by or imposed upon
  such persons, arising out of any act or omission in connection with the
  operation and administration of the Plan, other than fraud or willful
  misconduct.

          ARTICLE XIII--REGULATIONS AND OTHER APPROVALS; GOVERNING LAW

   13.01 Governing Law. This Plan and the rights of all persons claiming
hereunder shall be construed and determined in accordance with the laws of the
State of Delaware.

   13.02 Obligation to Issue Shares. The obligation of the Company to sell or
deliver Shares with respect to Options granted under the Plan shall be subject
to all applicable laws, rules and regulations, including all applicable federal
and state securities laws, and the obtaining of all such approvals by
governmental agencies as may be deemed necessary or appropriate by the
Committee.

   13.03 Mandatory Changes. Except as otherwise provided in Article X, the
Board may make such changes in the Plan or any Agreement as may be necessary or
appropriate to comply with the rules and regulations of any governmental
authority or securities exchange or association, or to obtain for Participants
granted Incentive Stock Options, the tax benefits under the applicable
provisions of the Code and regulations promulgated thereunder.

   13.04 Securities Laws. Each Award is subject to the requirement that, if at
any time the Committee determines, in its absolute discretion, that the
listing, registration or qualification of Shares issuable pursuant to the Plan
is required by any securities exchange or under any state or federal law, or
the consent or approval of any governmental regulatory body is necessary or
desirable as a condition of, or in connection with, the grant of an Award or
the issuance of Shares, no Awards shall be granted or payment made or Shares
issued, in whole or in part, unless listing, registration, qualification,
consent or approval has been effected or obtained free of any conditions as
acceptable to the Committee.

                                      C-10
<PAGE>

   13.05 Transfer Restrictions. In the event that the disposition of Shares
acquired pursuant to the Plan is not covered by a then current registration
statement under the Securities Act and is not otherwise exempt from such
registration, such Shares shall be restricted against transfer to the extent
required by the Securities Act or regulations thereunder, and the Company may
place a restrictive legend on the share certificate indicating such
restrictions. Furthermore, the Committee may require a Participant receiving
Shares pursuant to the Plan, as a condition precedent to receipt of such
Shares, to represent to the Company in writing that the Shares acquired by such
Participant are acquired for investment only and not with a view to
distribution.

   13.06 Share Agreements. The Committee, in its sole discretion, may require
any Participant, beneficiary, guardian or legal representative of a Participant
or any other person to execute one (1) or more agreements, relating to the
Shares of the Company, with the Company and/or any of the Company's
shareholders; and no Share may be issued by the Company pursuant to an exercise
of an Option, unless and until such agreements, if any, are executed.

                           ARTICLE XIV--MISCELLANEOUS

   14.01 Multiple Agreements. The terms of each Award may differ from, other
Awards granted under the Plan at the same time, or at any other time. The
Committee may also grant more than one Award to a given Participant during the
term of the Plan, either in addition to, or in substitution for, one or more
Awards previously granted to that Participant. The grant of multiple Awards may
be evidenced by a single Agreement or multiple Agreements, as determined by the
Committee.

   14.02 Withholding of Taxes.

     (a) Whenever the Company proposes to issue or transfer Shares under the
  Plan, the Company shall have the right to require the Participant to remit
  to the Company prior to the issuance of any stock certificates and to
  deduct from any payment of cash to the Participant (whether pursuant to the
  Plan or otherwise) an amount sufficient to satisfy any federal, state, and
  local withholding tax requirements.

     (b) With the consent of the Committee, any Participant may satisfy, in
  whole or in part, the obligation to pay the Participant's statutory
  withholding tax obligations by electing to surrender Shares that have a
  Fair Market Value on the date of exercise equal to the amount of cash
  required to be withheld. All elections shall be irrevocable, and be made in
  writing and signed by the Participant prior to the day of exercise.

     (c) The Agreement evidencing any Incentive Stock Options granted under
  this Plan shall provide that if the Participant makes a disposition, within
  the meaning of Section 424(c) of the Code and regulations promulgated
  thereunder, of any Share or Shares issued to such Participant pursuant to
  such Participant's exercise of an Incentive Stock Option, and such
  disposition occurs within the two (2) year period commencing on the day
  after the date of grant of such Option or within the one (1) year period
  commencing on the day after the date of transfer of the Share or Shares to
  the Participant pursuant to the exercise of such Option, such Participant
  shall, within ten (10) days of such disposition, notify the Company thereof
  and thereafter immediately deliver to the Company any amount of federal,
  state or local income taxes and other amounts that the Company informs the
  Participant the Company is required to withhold.

   14.03 Designation of Beneficiary.

     (a) A Participant may, with the consent of the Committee, designate a
  beneficiary or beneficiaries to receive, in the event of such Participant's
  death, any Award or Shares payable to such Participant under the Plan. The
  Participant may revoke or amend a designation at any time by a subsequent
  written designation. However, no such designation, revocation or amendment
  shall be honored by the Company unless signed and dated by the Participant
  (and the Participant's spouse where required by law) and delivered to the
  Company within the Participant's lifetime. The Company makes no guarantee
  or assurance that any beneficiary form supplied by it will be effective
  under the laws of the applicable jurisdiction to transfer rights to a
  beneficiary at the time of a Participant's death. The Participant is solely
  responsible for determining whether any beneficiary designation is in
  compliance with such laws.

                                      C-11
<PAGE>

     (b) In the event of the death of a Participant and in the absence of a
  beneficiary validly designated under the Plan who is living at the time of
  such Participant's death, the Company shall deliver such Options and/or
  amounts payable to the executor or administrator of the estate of the
  Participant, or if no such executor or administrator has been appointed (to
  the knowledge of the Company), the Company, in its discretion, may deliver
  such Options and/or amounts payable to the spouse or to any one or more
  dependents or relatives of the Participant, or if no spouse, dependent or
  relative is known to the Company, then to such other person as the Company
  may designate.

   14.04 Gender and Number. Except where otherwise indicated by the context,
any masculine term used herein also shall include the feminine; the plural
shall include the singular and the singular shall include the plural.

   14.05 Severability. In the event any provision of the Plan shall be held
illegal or invalid for any reason, the illegality or invalidity shall not
affect the remaining parts of the Plan, and the Plan shall be construed and
enforced as if the illegal or invalid provision had not been included.

   14.06 Successors. All obligations of the Company under the Plan, with
respect to Awards granted hereunder, shall be binding on any successor to the
Company, whether the existence of such successor is the result of a direct or
indirect purchase, merger, consolidation, or otherwise, of all or substantially
all of the business and/or assets of the Company.

   14.07 Headings and Captions. The headings and captions in this Plan are for
convenience of reference only and shall not limit or otherwise affect the
meaning hereof.

                          [Signature Page to Follow.]

                                      C-12
<PAGE>

   IN WITNESS WHEREOF, this Plan is made effective as of the day, month and
year first above written.

                                        CE SOFTWARE HOLDINGS, INC.

                                        By: ___________________________________

                                        Printed Name: _________________________

                                        Title: ________________________________

                                      C-13
<PAGE>

                          INDEPENDENT AUDITORS' REPORT

The Board of Directors and Stockholders
CE Software Holdings, Inc.:

   We have audited the accompanying consolidated balance sheets of CE Software
Holdings, Inc., and subsidiaries as of September 30, 1999 and 1998, and the
related consolidated statements of operations, stockholders' equity, and cash
flows for each of the years in the three-year period ended September 30, 1999.
These consolidated financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits.

   We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.

   In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of CE Software
Holdings, Inc., and subsidiaries as of September 30, 1999 and 1998, and the
results of their operations and their cash flows for each of the years in the
three-year period ended September 30, 1999, in conformity with generally
accepted accounting principles.

                                          KPMG LLP

Des Moines, Iowa
October 29, 1999

                                      D-1
<PAGE>

                          CONSOLIDATED BALANCE SHEETS

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

                          September 30, 1999 and 1998

<TABLE>
<CAPTION>
                                                            1999       1998
Assets (note 3)                                          ---------- ----------
<S>                                                      <C>        <C>
Current assets:
  Cash and cash equivalents............................. $4,126,637  4,106,493
  Investments...........................................  1,278,601  2,882,031
  Trade accounts receivable, less allowance for doubtful
   accounts of $30,000 in 1999 and $23,000 in 1998 (note
   7)...................................................    500,185    479,953
  Recoverable income taxes..............................    176,121        --
  Inventories...........................................    250,208    394,649
  Other current assets..................................    313,579    251,102
                                                         ---------- ----------
    Total current assets................................  6,645,331  8,114,228
                                                         ---------- ----------
Property, fixtures, and equipment:
  Land..................................................     91,796    316,796
  Building..............................................  1,312,016  1,312,016
  Fixtures and equipment................................  2,716,807  2,633,551
                                                         ---------- ----------
    Total property, fixtures, and equipment.............  4,120,619  4,262,363
  Less accumulated depreciation.........................  2,710,159  2,360,475
                                                         ---------- ----------
    Net property, fixtures, and equipment...............  1,410,460  1,901,888
                                                         ---------- ----------
Deferred income taxes (note 5)..........................        --     369,000
Other intangible assets, net of amortization............     21,927     33,888
Other assets............................................     19,285     43,256
                                                         ---------- ----------
    Total assets........................................ $8,097,003 10,462,260
                                                         ========== ==========
<CAPTION>
Liabilities and Stockholders' Equity
<S>                                                      <C>        <C>
Current liabilities:
  Current portion of long-term debt (note 3)............ $  100,237     87,480
  Trade accounts payable................................    207,259    238,343
  Accrued payroll and benefits..........................    146,143    171,033
  Income taxes payable..................................        --     275,744
  Other accrued payables................................    120,057    111,991
  Deferred revenue......................................      9,444     33,948
  Deferred income taxes.................................        --     588,000
                                                         ---------- ----------
    Total current liabilities...........................    583,140  1,506,539
                                                         ---------- ----------
Long-term debt, net of current portion (note 3).........    240,859    342,685
                                                         ---------- ----------
    Total liabilities...................................    823,999  1,849,224
                                                         ---------- ----------
Stockholders' equity (note 4):
  Common stock, $.10 par value. Authorized 2,000,000
   shares; issued and outstanding 1,105,668 in 1999 and
   1,095,900 in 1998....................................    110,567    109,590
  Additional paid-in capital............................  5,927,619  5,893,710
  Accumulated other comprehensive loss..................        --     (72,138)
  Retained earnings.....................................  1,234,818  2,681,874
                                                         ---------- ----------
    Total stockholders' equity..........................  7,273,004  8,613,036
                                                         ---------- ----------
    Total liabilities and stockholders' equity.......... $8,097,003 10,462,260
                                                         ========== ==========
</TABLE>

          See accompanying notes to consolidated financial statements.

                                      D-2
<PAGE>

                     CONSOLIDATED STATEMENTS OF OPERATIONS

                  CE Software Holdings, Inc., and Subsidiaries

                 Years ended September 30, 1999, 1998, and 1997

<TABLE>
<CAPTION>
                                              1999         1998        1997
                                           -----------  ----------  ----------
<S>                                        <C>          <C>         <C>
Net revenues (note 7)..................... $ 3,787,868   4,356,926   7,056,072
Cost of revenues..........................     880,682     977,671   1,212,496
                                           -----------  ----------  ----------
  Gross profit............................   2,907,186   3,379,255   5,843,576
                                           -----------  ----------  ----------
Sales and marketing.......................   1,714,621   1,711,262   3,464,570
General and administrative................   1,614,282   1,683,550   2,304,048
Research and development..................   1,109,856   1,169,230   1,429,126
                                           -----------  ----------  ----------
  Operating expenses......................   4,438,759   4,564,042   7,197,744
                                           -----------  ----------  ----------
  Operating loss..........................  (1,531,573) (1,184,787) (1,354,168)
Other income (expense):
  (Loss) gain on sale of investments, net.    (553,078)  5,852,746         --
  (Loss) on sale of property, fixtures,
   and equipment..........................     (25,000)        --          --
  Change in market value of trading
   securities.............................         --     (282,786)        --
  Interest income.........................     223,366     109,336     128,071
  Interest expense........................     (33,706)    (72,366)    (83,472)
                                           -----------  ----------  ----------
    (Loss) earnings before income taxes...  (1,919,991)  4,422,143  (1,309,569)
Income tax (benefit) expense (note 5).....    (472,935)    731,000         --
                                           -----------  ----------  ----------
    Net (loss) earnings................... $(1,447,056)  3,691,143  (1,309,569)
                                           ===========  ==========  ==========
Basic (loss) earnings per share (note 1).. $     (1.32)       3.37       (1.19)
                                           ===========  ==========  ==========
Shares used in per share calculation--
 basic....................................   1,098,395   1,095,900   1,104,736
                                           ===========  ==========  ==========
Diluted (loss) earnings per share (note
 1)....................................... $     (1.32)       3.32       (1.19)
                                           ===========  ==========  ==========
Shares used in per share calculation--
 diluted..................................   1,098,395   1,113,201   1,104,736
                                           ===========  ==========  ==========
</TABLE>


          See accompanying notes to consolidated financial statements.

                                      D-3
<PAGE>

                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

                  CE Software Holdings, Inc., and Subsidiaries

                 Years ended September 30, 1999, 1998, and 1997

<TABLE>
<CAPTION>
                                                 Accumulated    Retained
                                    Additional   Other Com-     Earnings
                           Common    Paid-in     prehensive   (Accumulated
                           Stock     Capital    Income (Loss)   Deficit)     Total
                          --------  ----------  ------------- ------------ ----------
<S>                       <C>       <C>         <C>           <C>          <C>
Balances at September
 30, 1996...............  $112,343  6,038,758          --         300,300   6,451,401
Comprehensive loss:
  Net loss..............       --         --           --      (1,309,569) (1,309,569)
  Other comprehensive
   income...............       --         --           --             --          --
                          --------  ---------      -------     ----------  ----------
Total comprehensive
 loss...................       --         --           --      (1,309,569) (1,309,569)
                          --------  ---------      -------     ----------  ----------
Common stock issued to
 employees..............       198     14,033          --             --       14,231
Common stock recovered
 in lawsuit.............    (5,000)  (159,063)         --             --     (164,063)
Cash paid for common
 stock in lieu of
 issuing fractional
 shares.................        (1)       (18)         --             --          (19)
Common stock issued to
 officer (note 4).......     2,050        --           --             --        2,050
                          --------  ---------      -------     ----------  ----------
Balances at September
 30, 1997...............   109,590  5,893,710          --      (1,009,269)  4,994,031
Comprehensive income:
  Net earnings..........       --         --           --       3,691,143   3,691,143
  Other comprehensive
   loss.................       --         --       (72,138)           --      (72,138)
                          --------  ---------      -------     ----------  ----------
Total comprehensive
 income.................       --         --       (72,138)     3,691,143   3,619,005
                          --------  ---------      -------     ----------  ----------
Balances at September
 30, 1998...............   109,590  5,893,710      (72,138)     2,681,874   8,613,036
Comprehensive loss:
  Net loss..............       --         --           --      (1,447,056) (1,447,056)
  Other comprehensive
   income...............       --         --        72,138            --       72,138
                          --------  ---------      -------     ----------  ----------
Total comprehensive
 loss...................       --         --        72,138     (1,447,056) (1,374,918)
                          --------  ---------      -------     ----------  ----------
Stock options exercised.       977     33,909          --             --       34,886
                          --------  ---------      -------     ----------  ----------
Balances at September
 30, 1999...............  $110,567  5,927,619          --       1,234,818   7,273,004
                          ========  =========      =======     ==========  ==========
</TABLE>


          See accompanying notes to consolidated financial statements.

                                      D-4
<PAGE>

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

                  CE Software Holdings, Inc., and Subsidiaries

                 Years ended September 30, 1999, 1998, and 1997

<TABLE>
<CAPTION>
                                              1999         1998        1997
                                           -----------  ----------  ----------
<S>                                        <C>          <C>         <C>
Cash flows from operating activities:
  Net (loss) earnings..................... $(1,447,056)  3,691,143  (1,309,569)
  Adjustments to reconcile net (loss)
   earnings to net cash provided by (used
   in) operating activities:
    Depreciation and amortization:
      Property, fixtures, and equipment...     349,684     416,701     501,673
      Purchased software..................         --      144,447     239,651
      Other...............................      26,065     148,377      89,120
      Amortization of premium.............      14,073         --          --
      Accretion of discount...............     (12,962)        --          --
    Change in market value (trading
     securities)..........................         --      282,786         --
    Proceeds from sale of trading
     securities...........................   1,428,759   2,897,294         --
    Loss on sale of trading securities....     553,078     353,616         --
    Loss on sale of land..................      25,000         --          --
    Gain on sale of joint venture.........         --   (6,206,362)        --
    (Decrease) increase deferred income
     taxes................................    (271,000)    454,000         --
    (Increase) decrease in trade accounts
     receivable...........................     (20,232)    628,109     346,825
    (Increase) decrease in recoverable
     income taxes.........................    (176,121)     24,153     184,032
    Decrease (increase) in inventories....     144,441     348,462    (271,514)
    (Increase) decrease in other assets...     (52,610)    (69,776)    166,034
    (Decrease) increase in trade accounts
     payable..............................     (31,084)    (78,502)   (209,185)
    (Decrease) increase in income taxes
     payable..............................    (275,744)    275,744         --
    Decrease in accrued expenses..........     (16,824)   (199,722)    (87,979)
    Decrease in deferred revenue..........     (24,504)    (66,743)   (426,101)
    Other.................................         --       (1,020)     35,798
                                           -----------  ----------  ----------
      Net cash provided by (used in)
       operating activities...............     212,963   3,042,707    (741,215)
                                           -----------  ----------  ----------
Cash flows from investing activities:
  Purchase of held-to-maturity
   investments............................  (1,562,490) (1,028,750)   (482,383)
  Proceeds upon maturity of held-to-
   maturity investments...................   1,307,110     495,375         --
  Proceeds from sale of land..............     200,000       5,350      13,078
  Purchase of property, fixtures, and
   equipment..............................     (83,256)   (105,411)    (76,811)
  Purchase of other assets................         --          --      (30,000)
  Proceeds from sale of joint venture.....         --      690,829         --
  Proceeds from note receivable...........         --          --      934,000
                                           -----------  ----------  ----------
      Net cash (used in) provided by
       investing activities...............    (138,636)     57,393     357,884
                                           -----------  ----------  ----------
Cash flows from financing activities:
  Proceeds from stock options exercised...      34,886         --          --
  Proceeds from issuance of common stock..         --          --       16,281
  Payments on long-term debt..............     (89,069)   (448,041)    (41,219)
                                           -----------  ----------  ----------
    Net cash used in financing activities.     (54,183)   (448,041)    (24,938)
                                           -----------  ----------  ----------
    Net increase (decrease) in cash and
     cash equivalents.....................      20,144   2,652,059    (408,269)
Cash and cash equivalents at beginning of
 year.....................................   4,106,493   1,454,434   1,862,703
                                           -----------  ----------  ----------
Cash and cash equivalents at end of year.. $ 4,126,637   4,106,493   1,454,434
                                           ===========  ==========  ==========
Supplemental disclosures of cash flow
 information:
  Cash paid during the year for:
    Interest.............................. $    34,764      75,794      82,615
    Income taxes..........................     268,619         --        1,554
                                           ===========  ==========  ==========
Supplemental schedule of non-cash
 investing and financing activities:
  Documentum, Inc. common stock received
   from the sale of joint venture......... $       --    5,515,533         --
  Recovery of common stock in settlement
   of lawsuit.............................         --          --      164,063
  Issuance of common stock to officer in
   exchange for note receivable (note 4)..         --          --       49,969
                                           ===========  ==========  ==========
</TABLE>

              See accompanying notes to the financial statements.

                                      D-5
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                       September 30, 1999, 1998, and 1997

(1) Summary of Significant Accounting Policies Principles of Consolidation

   The consolidated financial statements include the accounts of CE Software
Holdings, Inc., and its wholly owned subsidiaries, CE Software, Inc., and CE
Distributing, Inc. (the Company). CE Software Holdings, Inc., exists primarily
as the stock holding company. CE Distributing, Inc., has been inactive since
its note receivable was repaid in March 1997. All remaining operations are
accounted for by CE Software, Inc. All significant intercompany balances and
transactions have been eliminated in consolidation.

 Operations

   The Company manufactures and sells computer system enhancing and network
productivity software for Apple Macintosh and IBM PC and compatible personal
computers.

 Use of Estimates

   The preparation of financial statements in conformity with generally
accepted accounting principles requires management of the Company to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting periods. Actual results could differ from those estimates.

 Cash and Cash Equivalents

   For purposes of the consolidated statements of cash flows, the Company
considers money market funds and repurchase agreements with a maturity at
purchase of three months or less at date of purchase to be the equivalent of
cash. At September 30, 1999 and 1998, cash equivalents totaled $4,021,729 and
$4,069,083, respectively.

 Investments

   Investments consist of trading securities, available-for-sale securities,
and held-to-maturity securities.

   Trading securities consisted of unrestricted common stock of Documentum,
Inc. at September 30, 1998 (see note 2). The investment was recorded at market
value, with the unrealized loss recognized in other income (expense) for the
year ended September 30, 1998. There were no trading securities held at
September 30, 1999.

   Available-for-sale securities consisted of restricted stock of Documentum,
Inc. at September 30, 1998 (see note 2). The investment was recorded at market
value, with the unrealized loss recorded as a component of comprehensive income
at September 30, 1998. There were no available-for-sale securities held at
September 30, 1999.

   At September 30, 1999, held-to-maturity securities consist of certificates
of deposit totaling $270,000 and two bond securities totaling $1,008,601. These
investments are recorded at cost as cost approximates market value.

 Inventories

   Inventories are composed primarily of software translation costs, product
materials, and capitalized production costs. Product materials, such as
instruction manuals, CD-ROMS, diskettes, and packaging boxes, are stated at the
lower of cost or market with cost determined using the first-in, first-out
method. Translation

                                      D-6
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

costs are amortized over the estimated period between upgrades of the
associated international versions of the products. No amortization period has
exceeded 18 months during the three-year period ended September 30, 1999.

 Property, Fixtures, and Equipment

   Property, fixtures, and equipment are stated at cost. Depreciation is
calculated on the straight-line method over the estimated useful lives of the
assets as follows: 31 1/2 years for building and five to seven years for
fixtures and equipment.

 Purchased Computer Software Technology

   Purchased computer software technology was amortized over a period of three
to five years based on the expected life of the related products. The
amortization expense included in cost of revenues for the years ended September
30, 1998, and 1997 was $144,447, and $239,651, respectively. The purchased
computer software technology was fully amortized in fiscal 1998. The cost of
internally developed software is expensed as research and development, as
incurred.

 Other Intangible Assets

   Amortization expense, excluding the write-off discussed below, was $11,961,
$148,377, and $89,120, for the years ended September 30, 1999, 1998, and 1997,
respectively. During fiscal 1999, a fully amortized intangible asset with an
original cost of $540,100 was written-off. Accumulated amortization at
September 30, 1999 and 1998, was $61,796 and $589,936, respectively. The
Company assesses the recoverability of intangible assets through analysis of
undiscounted cash flows. Based on this analysis, an additional expense of
$140,054 was taken against the customer list in fiscal 1997. In fiscal 1997
this additional amortization expense was netted against the gain realized on
settlement of the Powercore lawsuit. The combined effect had no impact on the
results of operations.

 Class B Common and Preferred Stock

   The Company canceled the previously authorized 3,000,000 shares of $.01 par
value Class B common stock and 2,000,000 shares of $.01 par value preferred
stock. No shares of either class of stock had ever been issued.

 Stock Option Plans

   The Company has adopted Statement of Financial Accounting Standards No. 123
(SFAS 123), "Accounting for Stock-based Compensation," as required for
disclosure purposes only. The Company continues to apply the provisions of
Accounting Principles Board Opinion No. 25 (APB 25), "Accounting for Stock
Issued to Employees." In accordance with APB 25, compensation expense was
recorded only on the date of grant if the current market price of the
underlying stock exceeded the exercise price. Pro forma disclosures required by
SFAS 123 have been provided (see note 4).

 Revenue Recognition

   Revenue from software licenses is recognized upon shipment of the product,
net of an allowance for estimated product returns. The Company provides an
allowance for product returns based upon historical experience and anticipated
returns from its major distributors. The allowance for estimated product
returns at September 30, 1999 and 1998, was $31,000 and $50,800, respectively,
and is netted against trade accounts receivable in the consolidated balance
sheets.

                                      D-7
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


   Revenues associated with obligations to provide customers with future
product enhancements are deferred and recognized either pro rata over the term
of the respective agreements or, in the case of revenues associated with
specific upgrades, upon shipment of the upgraded products.

   Post-contract customer support (PCS) is provided with other software
licenses, and is also available separate from the license fee. Revenue equal to
the estimated costs of providing the PCS is deferred and recognized over the
estimated performance period. Other accrued payables at September 30, 1999 and
1998, include $91,051 and $71,262, respectively, of such deferrals.

 Advertising and Marketing

   Advertising costs are expensed in the period the advertising takes place.
For the years ended September 30, 1999, 1998, and 1997, advertising and
marketing costs were $981,596, $721,765, and $1,801,120, respectively.

 Income Taxes

   The Company files a consolidated federal income tax return. The Company
accounts for income taxes under the asset and liability method. Under the asset
and liability method, deferred tax assets and liabilities are recognized for
the future tax consequences attributable to differences between the financial
statement carrying amounts of existing assets and liabilities and their
respective tax bases, and operating loss and tax credit carryforwards. Deferred
tax assets and liabilities are measured using enacted tax rates expected to
apply to taxable income in the years in which those temporary differences are
expected to be recovered or settled. The effect on deferred tax assets and
liabilities of a change in tax rates is recognized in income in the period that
includes the enactment date.

 Fair Value of Financial Instruments

   Statement of Financial Accounting Standards (SFAS) No. 107, "Disclosure
About Fair Value of Financial Instruments," requires the Company to disclose
the estimated fair values for it financial instruments. Fair value estimates,
methods, and assumptions are set forth below:

   Cash and cash equivalents, trade accounts receivable, trade accounts
payable, and accrued expenses--The carrying amount approximates the estimated
fair value due to the short-term nature of those instruments.

   Investments--Trading securities and available-for-sale securities were
recorded at market value using published stock prices. Other short-term
investments are recorded at cost, which approximates market value.

   Long-term debt--The carrying amount approximates the estimated fair value
since the debt bears interest at a variable interest rate.

   Limitations--Fair value estimates are made as of a specific point in time,
based upon the relevant market information about the financial instruments.
Because no market exists for a majority of the Company's financial instruments,
fair value estimates are based on judgments regarding current economic
conditions and other factors. These estimates are subjective in nature and
involve uncertainties and matters of judgments and, therefore, cannot be
determined with precision. Changes in assumptions could significantly affect
the estimates.

                                      D-8
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


 Earnings (Loss) Per Common Share

   In fiscal 1998, the Company adopted SFAS No. 128, "Earnings Per Share,"
which requires the presentation of basic and diluted earnings (loss) per share.
Basic earnings (loss) per common share is computed by dividing net earnings
(loss) by the weighted average number of common shares outstanding during the
year. Diluted earnings (loss) per common share reflects the potential dilution
that would occur from the exercise of common stock options outstanding. The
weighted average shares outstanding used for computing basic and diluted
earnings (loss) per common share for each of the years ended September 30,
1999, 1998, and 1997, are as follows:

<TABLE>
<CAPTION>
                                                     1999      1998      1997
                                                   --------- --------- ---------
   <S>                                             <C>       <C>       <C>
   Basic:
     Weighted average shares outstanding during
      year.......................................  1,098,395 1,095,900 1,104,736
                                                   --------- --------- ---------
   Diluted:
     Weighted average shares outstanding during
      year.......................................  1,098,395 1,095,900 1,104,736
     Additional shares due to stock options......        --     17,301       --
                                                   --------- --------- ---------
   Shares used to compute diluted per share data.  1,098,395 1,113,201 1,104,736
                                                   ========= ========= =========
</TABLE>

   Antidilutive options excluded from the above calculations totaled 138,855,
82,960, and 159,822, at September 30, 1999, 1998, and 1997, respectively. All
previously reported earnings (loss) per common share have been restated to
conform to the new presentation.

 Other

   The Company adopted SFAS No. 130, "Reporting Comprehensive Income,"
effective October 1, 1998. This statement required revised and additional
disclosures but did not have a material effect on the results of operations or
financial position of the Company. Other comprehensive income consisted of
unrealized gains and losses on an equity security for fiscal years 1999 and
1998. The tax expense (benefit) related to other comprehensive income (loss)
for fiscal years 1999 and 1998 amounted to $(25,250) and $25,250, respectively.

(2) Sale of Stock Held as an Investment

   In fiscal 1998, the investment in Relevance was sold as part of a merger
between Relevance and Documentum, Inc. ("Documentum"). The Company received
$690,829 in cash and 114,182 shares of Documentum, common stock, Nasdaq
National Market symbol, DCTM. Of the stock received, the agreement required
that 14,302 shares be held in escrow for a period of one year, ending in July
1999. The Company had classified these restricted shares as available-for-sale
securities, and the unrestricted shares as trading securities. The stock was
valued at approximately $48.30 per share upon receipt resulting in the Company
recognizing a $6,206,362 gain as follows:

<TABLE>
   <S>                                      <C>        <C>
   Cash received from Documentum..........  $  690,829
   Documentum common stock held in escrow.     690,855 (14,302 shares at $48.30)
   Documentum common stock unrestricted...   4,824,678 (99,880 shares at $48.30)
                                            ----------
       Total consideration from Relevance
        sale..............................  $6,206,362
                                            ==========
</TABLE>

   During fiscal 1998, the Company sold 67,300 shares of Documentum stock on
the open market, resulting in losses of $353,616. These losses are netted with
the original $6,206,362 gain for presentation in the statement of operations
for the year ended September 30, 1998 as a gain on sale of investments of
$5,852,746.

                                      D-9
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)


   At September 30, 1998, the closing market price of Documentum's common stock
was $39.625 per share compared to the $48.30 value placed on the shares at the
purchase date. A decrease in market value of trading securities and an
unrealized loss on available-for-sale investment securities were recorded at
September 30, 1998 as follows:

<TABLE>
<CAPTION>
                                                         Unrestricted Restricted
                                                         ------------ ----------
      <S>                                                <C>          <C>
      Shares held.......................................      32,580    14,302
                                                          ==========   =======
      Cost basis of shares..............................  $1,573,769   690,855
      Market price of shares............................   1,290,983   566,717
                                                          ----------   -------
      Mark to market loss...............................  $  282,786   124,138
                                                          ==========   =======
</TABLE>

   In fiscal 1999, the remaining 46,882 shares of Documentum Inc. (Documentum)
were sold at an average price of $30.48, resulting in a realized loss on the
sale of $835,864, of which $282,786 was reported in fiscal 1998, reflecting the
mark to market value of the trading securities.

(3) Long-Term Debt

   In 1994, CE Software, Inc. borrowed $1,000,000 under a bank loan agreement.
The agreement contains certain financial compliance covenants and restricts
certain transactions, such as issuing dividends without prior written consent
of the bank. The interest rate on the loan is adjustable as defined in the
agreement, and at September 30, 1999 the rate was 7.85%. The loan is secured by
a mortgage on the real estate, a security interest in all business assets
owned, and is guaranteed by CE Software Holdings, Inc. The Company reduced the
outstanding principal with a prepayment of $400,000 in July 1998. Maturities
during the next four fiscal years are as follows: 2000, $100,237; 2001,
$108,581; 2002, $117,545; and 2003, $14,733.

(4) Common Stock

 Stock Option Plans

   The Company has three stock option plans: the 1990 Plan, the 1992 Plan and
the Non-employee Directors Stock Option Plan. The 1990 Plan granted options to
certain employees to purchase shares of common stock. Total shares of common
stock that may be subject to options under the 1990 Plan are 80,000 shares. The
1992 Plan is available to all employees and options are granted at the
discretion of the stock option committee of the board of directors. Total
shares of common stock that may be subject to options under the 1992 Plan are
100,000 shares. The Non-employee Directors Stock Option Plan is available to
directors who are not also employees of the Company. Total shares of common
stock that may be subject to options under the Non-employee Directors Stock
Option Plan are 20,000 shares. Under all plans, the purchase price per share
under any option granted cannot be less than the market value at the date of
the grant. Options granted under the plans shall expire 10 years from the date
such option is granted. One-third of the options are exercisable one year after
the grant date with the remaining two-thirds exercisable pro rata during the
succeeding 24 months.

   The Company applies APB 25 in accounting for its stock option plans and
accordingly, no compensation cost has been recognized for its stock options in
the consolidated financial statements. Had the Company determined compensation
cost based on the fair value at the grant date for its stock options under SFAS
123, the Company's net earnings (loss) and net earnings (loss) per share would
have been as indicated below:

<TABLE>
<CAPTION>
                                                1999        1998       1997
                                             -----------  --------- ----------
   <S>                                       <C>          <C>       <C>
   Net (loss) earnings--as reported......... $(1,447,056) 3,691,143 (1,309,569)
   Net (loss) earnings--pro forma........... $(1,479,711) 3,669,878 (1,342,227)
   Basic (loss) earnings per share--as
    reported................................ $     (1.32)      3.37      (1.19)
   Basic (loss) earnings per share--pro
    forma................................... $     (1.35)      3.35      (1.21)
   Diluted (loss) earnings per share--as
    reported................................ $     (1.32)      3.32      (1.19)
   Diluted (loss) earnings per share--pro
    forma................................... $     (1.35)      3.30      (1.21)
</TABLE>


                                      D-10
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

   The fair value of each option grant is estimated on the date of grant using
the Black-Scholes option valuation model with the following weighted average
assumptions used for grants during fiscal 1999, 1998 and 1997: risk-free
interest rates of 5.0%, 5.1%, and 6.2%, respectively; dividend yield of 0.0% in
each year; expected volatility of 72%, 82% and 63% in fiscal 1999, 1998 and
1997, respectively, and expected lives of four years in each year. The fair
values of the option grants in 1999, 1998 and 1997 were $4.43, $3.58, and $1.29
per share, respectively. The effects of applying SFAS 123 may not be
representative of the effects on reported net earnings (loss) for future years.

   At September 30, 1999, total options outstanding were 138,855, of which
83,422 were exercisable, at exercise prices ranging from $2.38 to $46.25 and a
weighted-average remaining contractual life of 7.9 years. The number of options
and the weighted-average exercise price of options outstanding, granted,
exercised, and canceled during the three years ended September 30, 1999, are as
follows:

<TABLE>
<CAPTION>
                                                          1999    1998    1997
                                                         ------- ------- -------
   <S>                                                   <C>     <C>     <C>
   Number of options:
   Outstanding at beginning of year..................... 139,340 159,822  79,752
   Granted..............................................  26,160  30,380 181,367
                                                         ------- ------- -------
                                                         165,500 190,202 261,119
   Exercised............................................   9,768     --      --
   Canceled.............................................  16,877  50,862 101,297
                                                         ------- ------- -------
   Outstanding at end of year........................... 138,855 139,340 159,822
                                                         ======= ======= =======
</TABLE>

<TABLE>
<CAPTION>
                                                                1999  1998 1997
                                                                ----- ---- -----
   <S>                                                          <C>   <C>  <C>
   Weighted-average exercise price of options:
   Outstanding at beginning of year............................ $4.82 5.37 16.33
   Granted.....................................................  4.55 2.19  4.89
   Exercised...................................................  3.57  --    --
   Canceled....................................................  4.57 4.99 13.15
   Outstanding at end of year..................................  4.88 4.82  5.37
                                                                ===== ==== =====
</TABLE>

   The options outstanding as of September 30, 1999, have the following
attributes:

<TABLE>
<CAPTION>
                                               Under   $5.00    $10.00   $20.00
                                               $5.00  to $9.99 to $19.99 & over
                                              ------- -------- --------- ------
   <S>                                        <C>     <C>      <C>       <C>
   Option statistics by price ranges:
   Options outstanding.......................  72,550  57,825    7,880      600
   Weighted-average price.................... $  3.13 $  5.13   $16.36   $42.20
   Weighted-average remaining life (in
    years)...................................    8.70    7.43     3.60     2.20
   Number exercisable........................  26,227  48,715    7,880      600
   Weighted-average price of exercisable
    options.................................. $  2.44 $  5.15   $16.36   $42.20
</TABLE>

 Note Receivable from Officer

   Under an employment agreement and related stock purchase agreement entered
into in fiscal 1997, the Company has a $49,969 note receivable from the then
president of CE Software, Inc., for 20,500 shares of common stock. Cash was
paid for the par value of the shares purchased. The note receivable equals the
increase in additional paid-in capital and, for presentation purposes, the note
receivable and the increase in additional paid-in capital are combined and net
to zero. Additional paid-in capital will increase as the note is paid down. The
note is interest-bearing with interest payments due quarterly. The principal
amount is due and

                                      D-11
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
payable on demand, but no later than the earlier of 10 years or one year
following the termination of employment. Under the employment agreement, 60% of
any cash dividends or other cash distributions paid on the common stock will be
applied to the note receivable balance. The shares of common stock are being
held by the Company as collateral security for the payment in full of the note.

(5) Income Taxes

   Income tax (benefit) expense for the years ended September 30, 1999, 1998,
and 1997, consisted of the following:

<TABLE>
<CAPTION>
                                                           1999      1998   1997
                                                         ---------  ------- ----
   <S>                                                   <C>        <C>     <C>
   Current.............................................. $(201,935) 277,000 --
   Deferred.............................................  (271,000) 454,000 --
                                                         ---------  ------- ---
   Income tax (benefit) expense......................... $(472,935) 731,000 --
                                                         =========  ======= ===
</TABLE>

   Current income tax (benefit) expense for 1999, 1998, and 1997, includes
$(25,000), $102,000, and $0 of state income tax expense, respectively.

   The income tax benefit or expense for 1999, 1998, and 1997, differs from the
"expected" tax benefit or expense computed by applying the United States
federal income tax rate of 34% to the earnings or loss before income taxes, as
follows:

<TABLE>
<CAPTION>
                                                 1999       1998       1997
                                               ---------  ---------  --------
   <S>                                         <C>        <C>        <C>
   Computed "expected" tax (benefit) expense.. $(652,797) 1,503,529  (445,253)
   Increase (decrease) in "expected" tax
    expense resulting from:
     State income tax, net of federal income
      tax effect..............................   (25,000)   175,781       --
     Change in valuation allowance............   302,000   (905,400)  518,400
     Other, net...............................   (97,138)   (42,910)  (73,147)
                                               ---------  ---------  --------
     Income tax (benefit) expense............. $(472,935)   731,000       --
                                               =========  =========  ========
</TABLE>

   The tax effects of temporary differences that give rise to significant
portions of the deferred income tax assets and liabilities at September 30,
1999 and 1998, are as follows:
<TABLE>
<CAPTION>
                                                               1999      1998
                                                             --------  --------
      <S>                                                    <C>       <C>
      Deferred tax assets:
        Allowance for product returns....................... $ 10,850    17,900
        Allowance for doubtful accounts.....................   10,100    11,900
        Accrued expenses....................................   71,050    50,100
        Intangible assets...................................  121,000   440,500
        Net operating loss carryforward.....................   43,000       --
        Alternative minimum tax credit......................   85,000       --
        Other...............................................      --      4,800
                                                             --------  --------
        Gross deferred tax assets...........................  341,000   525,200
        Valuation allowance.................................  302,000       --
                                                             --------  --------
          Total deferred tax assets.........................   39,000   525,200
      Deferred tax liabilities
        Equity investments..................................      --   (673,000)
        Accelerated depreciation for tax purposes...........  (39,000)  (71,200)
                                                             --------  --------
          Net deferred tax (liabilities).................... $    --   (219,000)
                                                             ========  ========
</TABLE>

                                      D-12
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

   The net deferred tax liabilities at September 30, 1998, were composed of net
current deferred tax liabilities of $588,000 and net non-current deferred tax
assets of $369,000. The change in the total valuation allowance for the years
ended September 30, 1999, 1998, and 1997 was an increase of $302,000, decrease
of $905,400, and an increase of $518,400, respectively.

(6) 401(k) Profit-Sharing Plan

   The Company has a 401(k) profit-sharing plan covering substantially all of
its employees. The profit-sharing component of the plan is funded by employer
contributions at the discretion of the board of directors. There was no profit-
sharing contribution for the years ended September 30, 1999, 1998, or 1997.

   The plan includes a 401(k) component that allows qualified employees to
contribute between 1% and 12% of their compensation. The Company, at the
discretion of the board of directors, can make matching contributions to the
accounts of qualified employees who have met the one year of service
requirement. Net employer contributions for the years ended September 30, 1999,
1998, and 1997, were $31,695, $39,441, and $56,979, respectively.

(7) Major Customers and Export Sales

   The Company's revenues (which are primarily from software sales for personal
computers) are primarily related to its messaging product group, which
represented 61%, 77%, and 79%, of total revenues for the years ended September
30, 1999, 1998, and 1997, respectively.

   The Company's major customers are distributors. Of its domestic revenues,
sales to one distributor customer in 1999, 1998, and 1997, were approximately
$617,000, $828,000, and $958,000, respectively. Accounts receivable from this
distributor customer at September 30, 1999 and 1998 were approximately $234,000
and $301,000, respectively.

   Virtually all export sales are to distributors. Export sales were
approximately $991,000, $1,287,000, and $2,095,000, for the years ended
September 30, 1999, 1998, and 1997, respectively. Sales to the Company's top
three export distributor customers represented approximately $276,000,
$131,000, and $130,000, or 7%, 3%, and 3%, of net revenues in fiscal 1999.
Sales to the top three export distributors customers represented approximately
$632,000 or 15% of net revenues in fiscal 1998. Percentage components of export
sales by geographic area for 1999, 1998, and 1997, respectively, were Europe
(89, 86, and 63 percent); Japan (1, 4, and 28 percent); Australia (9, 7, and 8
percent); and all others (1, 3, and 1 percent).

(8) Subsequent Event (Unaudited)

   On December 28, 1999, the Company signed a definitive agreement to merge
with Minneapolis, Minnesota-based ATIO Corporation USA, Inc., developer of
CyberCall, a fully integrated E-business customer care solution. Subject to
conditions described in the merger agreement, the transaction is expected to
close in the first quarter of 2000. Current ATIO shareholders will receive one
CESH share per 15.5 ATIO shares. The merger is structured to be treated as a
tax-free reorganization under the Internal Revenue Code. The post-merger
company will initially trade on the NASDAQ Small Cap market under the symbol
CESH.

   The definitive agreement is subject to the following funding requirements,
all of which must occur by closing: (a) approximately $5 million from the
Company, (b) $964,000 from Minneapolis-based Venturian Corp. (NASDAQ: VENT),
and (c) a minimum of $1.5 million pursuant to a private offering by CESH prior
to closing, the terms and conditions of which are to be determined. The private
offering by CESH will not be registered with the SEC and the securities
acquired through the private offering could not be sold or offered in the
United States absent registration or an applicable exemption from registration.

                                      D-13
<PAGE>

                  CE SOFTWARE HOLDINGS, INC., AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)

   Immediately following the closing, but prior to considering the effect of
the private offering, current CESH shareholders will own approximately 54% and
Venturian will hold approximately 15% of the shares of the post-merger company.
The agreement contemplates that in the first half of 2000, ATIO International,
a current ATIO shareholder, will purchase 314,062 shares of the post-merger
company, priced at $6.48 per share, for a total of approximately $2.1 million
in cash.

   Additional conditions to the completion of the merger include the
restructuring of certain ATIO agreements, the restructuring of ATIO debt or
conversion of ATIO debt into equity and the ongoing commitment and availability
of key ATIO managers and staff. Additionally, CESH shareholders must approve
the agreement.

   As a further condition of the merger, CESH's subsidiary company CE Software,
Inc., will be distributed to CESH shareholders simultaneous with the merger
with ATIO.

                                      D-14
<PAGE>

                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Shareholders
of ATIO Corporation USA Inc.

   In our opinion, the accompanying balance sheet and the related statement of
operations, of shareholders' deficit and of cash flows present fairly, in all
material respects, the financial position of ATIO Corporation USA Inc. at
December 31, 1998, and the results of its operations and its cash flows for the
year then ended, in conformity with generally accepted accounting principles.
These financial statements are the responsibility of the Company's management;
our responsibility is to express an opinion on these financial statements based
on our audit. We conducted our audit of these statements in accordance with
generally accepted auditing standards which require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management and evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for the opinion expressed
above.

   The accompanying financial statements have been prepared assuming that the
Company will continue as a going concern. As discussed in Note 1 to the
financial statements, the Company has incurred recurring losses from operations
and has a shareholders' deficit that raise substantial doubt about its ability
to continue as a going concern. Management's plans in regard to these matters
are also described in Note 1. The financial statements do not include any
adjustments that might result from the outcome of this uncertainty.

   As described in Note 11 to the financial statements, on December 28, 1999,
the Company and CE Software Holdings, Inc. entered into an agreement to merge.

                                          PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
Minneapolis, Minnesota
April 9, 1999, except for
 Notes 1 and 11 as to which
 the date is February 9, 2000

                                      D-15
<PAGE>

               REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

Board of Directors and Shareholders
Atio Corporation USA, Inc.

   We have audited the accompanying balance sheet of Atio Corporation USA, Inc,
(a Minnesota corporation) as of December 31, 1997, and the related statements
of operations, shareholders' deficit, and cash flows for the year then ended.
These financial statements are the responsibility of the Company's management.
Our responsibility is to express an opinion on these financial statements based
on our audit.

   We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audit provides a reasonable basis
for our opinion.

   In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Atio Corporation USA, Inc.
as of December 31, 1997, and the results of its operations and its cash flows
for the year then ended, in conformity with generally accepted accounting
principles.

   The accompanying financial statements have been prepared assuming that the
Company will continue as a going concern. As shown in the financial statements,
the Company has incurred accumulated losses since inception of $4,138,850 and
losses are expected to continue through the sales and marketing efforts and
further development of its products. These factors, among others, as discussed
in the footnotes, raise substantial doubt about the Company's ability to
continue as a going concern. As indicated in the footnotes, the Company is
continuing its efforts to raise the additional funds required to carry on its
activities. The financial statements do not include any adjustments that might
result from the outcome of this uncertainty.

                                          Grant Thornton LLP

Minneapolis, Minnesota
February 20, 1998

                                      D-16
<PAGE>

                           ATIO CORPORATION USA, INC.

                                 BALANCE SHEETS

<TABLE>
<CAPTION>
                                             December 31,
                                        ------------------------  September 30,
                                           1997         1998          1999
                                        -----------  -----------  -------------
                                                                   (unaudited)
<S>                                     <C>          <C>          <C>
Assets
Current assets:
  Cash................................. $   318,783  $       300  $        300
  Accounts receivable (net)............      87,401      168,754       324,893
  Due from affiliates..................                  125,306       398,393
  Prepaid expenses.....................      43,872       38,188       119,628
  Other receivables....................                                 26,516
                                        -----------  -----------  ------------
    Total current assets...............     450,056      332,548       869,730
Property and equipment:
  Equipment............................     252,319      460,026       542,434
  Leasehold improvements...............      45,000      186,889       186,890
                                        -----------  -----------  ------------
                                            297,319      646,915       729,324
  Accumulated depreciation and
   amortization........................     (69,696)    (194,699)     (302,486)
                                        -----------  -----------  ------------
                                            227,623      452,216       426,838
                                        -----------  -----------  ------------
    Total assets....................... $   677,679  $   784,764  $  1,296,568
                                        ===========  ===========  ============
Liabilities, Redeemable Stock and
 Shareholders' Deficit
Current liabilities:
  Accounts payable..................... $   252,066  $   435,889  $  1,037,191
  Due to affiliates....................     137,025       38,448        93,780
  Accrued payroll and related items....      23,665      270,619       602,914
  Other accrued expenses...............      32,893      124,748       335,331
  Deferred revenue.....................                    7,779       115,319
  Other current liabilities............                                 15,625
  Notes payable--affiliate.............                1,761,672     2,128,537
  Notes payable--other.................                              1,350,000
                                        -----------  -----------  ------------
    Total current liabilities..........     445,649    2,639,155     5,678,697
                                        -----------  -----------  ------------
Redeemable common stock................     500,000      500,000       500,000
                                        -----------  -----------  ------------
Shareholders' deficit:
  Common stock at $.01 par value,
   50,000,000 shares authorized,
   7,600,000 shares issued and
   outstanding at December 31, 1997,
   1998 and September 30, 1999.........      76,000       76,000        76,000
  Additional paid-in capital...........   5,878,213    5,946,838     6,608,088
  Subscription receivable..............  (2,063,333)
  Unearned compensation................                  (49,562)      (26,687)
  Accumulated deficit..................  (4,158,850)  (8,327,667)  (11,539,530)
                                        -----------  -----------  ------------
    Total shareholders' deficit........    (267,970)  (2,354,391)   (4,882,129)
                                        -----------  -----------  ------------
    Total liabilities, redeemable stock
     and shareholders' deficit......... $   677,679  $   784,764  $  1,296,568
                                        ===========  ===========  ============
</TABLE>

    The accompanying notes are an integral part of the financial statements.

                                      D-17
<PAGE>

                           ATIO CORPORATION USA, INC.

                            STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                         Nine Months Ended
                            Year Ended December 31,        September 30,
                            ------------------------  ------------------------
                               1997         1998         1998         1999
                            -----------  -----------  -----------  -----------
                                                            (unaudited)
<S>                         <C>          <C>          <C>          <C>
Revenues:
  Software................. $   185,620  $   348,068  $   197,463  $ 1,261,931
  Services.................     698,284      348,517      163,062      699,509
                            -----------  -----------  -----------  -----------
    Total revenue..........     883,904      696,585      360,525    1,961,440
                            -----------  -----------  -----------  -----------
Cost of revenues:
  Software.................      98,368       59,434        8,046      242,237
  Services.................     756,169      617,707      343,009      771,976
                            -----------  -----------  -----------  -----------
                                854,537      677,141      351,055    1,014,213
                            -----------  -----------  -----------  -----------
    Gross profit...........      29,367       19,444        9,470      947,227
                            -----------  -----------  -----------  -----------
Operating expenses:
  Sales and marketing
   expenses................   1,558,782    1,603,649    1,344,161    1,443,974
  General and
   administrative..........   1,419,059    1,430,875    1,185,357    1,372,338
  Research and development.     267,159    1,105,285      824,550      746,424
                            -----------  -----------  -----------  -----------
    Total operating
     expenses..............   3,245,000    4,139,809    3,354,068    3,562,736
                            -----------  -----------  -----------  -----------
Loss from operations.......  (3,215,633)  (4,120,365)  (3,344,598)  (2,615,509)
Other expense, net.........      56,691       48,452       18,800      596,354
                            -----------  -----------  -----------  -----------
Net loss................... $(3,272,324) $(4,168,817) $(3,363,398) $(3,211,863)
                            ===========  ===========  ===========  ===========
</TABLE>



    The accompanying notes are an integral part of the financial statements.

                                      D-18
<PAGE>

                           ATIO CORPORATION USA, INC.

                 STATEMENTS OF CHANGES IN SHAREHOLDERS' DEFICIT

<TABLE>
<CAPTION>
                            Common Stock                                                               Total
                          ------------------  Additional                   Stock                   Shareholders'
                          Number of            Paid-in    Accumulated   Subscription    Unearned       Equity
                           Shares    Amount    Capital      Deficit      Receivable   Compensation   (Deficit)
                          ---------  -------  ----------  ------------  ------------  ------------ -------------
<S>                       <C>        <C>      <C>         <C>           <C>           <C>          <C>
Balance at December 31,
 1996 (unaudited).......  4,000,000  $40,000              $   (886,526)                             $  (846,526)
Capital contribution by
 affiliate..............                      $3,088,307                                              3,088,307
Issuance of common
 stock, net of expenses
 of $174,094............  4,000,000   40,000   3,285,906                $(3,000,000)                    325,906
Redeemable common stock.   (400,000)  (4,000)   (496,000)                                              (500,000)
Development services
 provided...............                                                    266,667                     266,667
Collection on stock
 subscription
 receivable.............                                                    670,000                     670,000
Net loss................                                    (3,272,324)                              (3,272,324)
                          ---------  -------  ----------  ------------  -----------     --------    -----------
Balance at December 31,
 1997...................  7,600,000   76,000   5,878,213    (4,158,850)  (2,063,333)                   (267,970)
Development services
 provided...............                                                    548,333                     548,333
Collection on stock
 subscription
 receivable.............                                                  1,515,000                   1,515,000
Unearned compensation...                                                                $(68,625)       (68,625)
Compensation expense
 recognized.............                          68,625                                  19,063         87,688
Net loss................                                    (4,168,817)                              (4,168,817)
                          ---------  -------  ----------  ------------  -----------     --------    -----------
Balance at December 31,
 1998...................  7,600,000   76,000   5,946,838    (8,327,667)         --       (49,562)    (2,354,391)
Warrant for private
 placement costs on
 terminated offering
 (unaudited)............                          31,250                                                 31,250
Warrants issued with
 bridge loan
 (unaudited)............                         480,000                                                480,000
Retention incentive
 compensation
 (unaudited)............                         150,000                                                150,000
Compensation expense
 recognized (unaudited).                                                                  22,875         22,875
Net loss (unaudited)....                                    (3,211,863)                              (3,211,863)
                          ---------  -------  ----------  ------------  -----------     --------    -----------
Balance at September 30,
 1999 (unaudited).......  7,600,000  $76,000  $6,608,088  $(11,539,530) $       --      $(26,687)   $(4,882,129)
                          =========  =======  ==========  ============  ===========     ========    ===========
</TABLE>


    The accompanying notes are an integral part of the financial statements.

                                      D-19
<PAGE>

                           ATIO CORPORATION USA, INC.

                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                         Nine Months Ended
                            Year Ended December 31,        September 30,
                            ------------------------  ------------------------
                               1997         1998         1998         1999
                            -----------  -----------  -----------  -----------
                                                            (unaudited)
<S>                         <C>          <C>          <C>          <C>
Cash flows from operating
 activities:
  Net loss................  $(3,272,324) $(4,168,817) $(3,363,398) $(3,211,863)
  Adjustments to reconcile
   net loss to net cash
   used in operating
   activities:
    Depreciation and
     amortization.........       44,102      125,003       83,877      107,787
    Compensatory stock
     options..............                    19,063                    22,875
    Development services..      266,667      548,333      548,333
    Compensation expense
     converted to equity..                                             150,000
    Warrants issued with
     bridge loan..........                                             480,000
    Warrants for
     terminated offering..                                              31,250
  Changes in operating
   assets and liabilities:
    Account receivable....       11,172      (81,353)     (72,673)    (156,139)
    Prepaid expenses......       (6,870)       5,684      (11,160)     (81,440)
    Other receivables.....                                             (26,516)
    Accounts payable......      232,671      144,885      164,488      601,302
    Deferred revenue......       (9,260)       7,779                   107,540
    Accrued payroll and
     benefits.............      (35,943)     246,954      104,032      457,295
    Other current
     liabilities..........                                                 --
    Other accrued
     expenses.............       (8,317)      91,855       17,434      101,208
                            -----------  -----------  -----------  -----------
      Net cash used in
       operating
       activities.........   (2,778,102)  (3,060,614)  (2,529,067)  (1,416,701)
                            -----------  -----------  -----------  -----------
Cash flows from investing
 activities:
  Purchase of equipment
   and leasehold
   improvements...........     (178,704)    (349,596)    (340,830)     (82,409)
                            -----------  -----------  -----------  -----------
      Net cash used in
       investing
       activities.........     (178,704)    (349,596)    (340,830)     (82,409)
                            -----------  -----------  -----------  -----------
Cash flows from financing
 activities:
  Bank overdrafts.........                    38,938
  Net advances from
   affiliates.............    2,146,048    1,537,789    1,128,015      149,110
  Proceeds from issuance
   of short-term notes....                                           1,350,000
  Subscription receivable
   collections............      670,000    1,515,000    1,515,000
  Proceeds from issuance
   of common stock........      325,906
                            -----------  -----------  -----------  -----------
      Net cash provided by
       financing
       activities.........    3,141,954    3,091,727    2,643,015    1,499,110
                            -----------  -----------  -----------  -----------
Net increase (decrease) in
 cash.....................      185,148     (318,483)    (226,882)         --
Cash at beginning of
 period...................      133,635      318,783      318,783          300
                            -----------  -----------  -----------  -----------
Cash at end of period.....  $   318,783  $       300  $    91,901  $       300
                            ===========  ===========  ===========  ===========
Noncash investing and
 financing transaction:
  Note payable converted
   to equity..............  $ 3,088,307
  Development services
   provided for payment of
   stock subscription
   receivable.............  $   266,667      548,333      548,333
</TABLE>

    The accompanying notes are an integral part of the financial statements.

                                      D-20
<PAGE>

                           ATIO CORPORATION USA, INC.

                         NOTES TO FINANCIAL STATEMENTS

1. Organization

 Description of Business

   ATIO Corporation USA, Inc. (the "Company" or "ATIO USA"), formerly Venturian
Software Enterprises, Inc., provides customer contact automation software under
the trade name CyberCall. The Company has provided high-technology information
services in the Upper Midwest as a value-added dealer of MagicTM software,
providing primarily consulting services and custom applications development.

   Prior to October 1997, the Company was a 90 percent owned subsidiary of
Venturian Corp. ("Venturian"). Effective October 1, 1997, the Company entered
into a joint venture agreement with Venturian, Atio Corporation (PTY) Ltd.
("Atio PTY") of South Africa, Atio Corporation International, Inc. ("Atio
International") and the Company's minority shareholder and president, Ilan
Sharon ("Sharon"), whereby Atio International acquired a 50 percent interest in
the Company through funding provided by Atio PTY.

   As a result of this agreement, Atio International owns a 50 percent non-
controlling interest, Venturian owns 45 percent and Sharon owns 5 percent of
the Company. The Company changed its name to ATIO Corporation USA, Inc. upon
completion of the transaction.

 Ability to Continue as a Going Concern

   The accompanying financial statements have been prepared assuming the
Company will continue as a going concern. The Company has incurred accumulated
losses through December 31, 1998 of $8,307,667. The future of the Company is
dependent upon its ability to raise additional capital to fund its sales and
marketing efforts and the continued development of its products. As described
in Note 11, the Company has agreed to merge with CE Software Holdings, Inc.
which will provide financing for the Company.

   The Company has sufficient cash and cash equivalents to meet its working
capital and capital expenditure needs through at least December 31, 1999.
Thereafter, the Company expects that the net proceeds from this offering will
be sufficient to meet its working capital and capital expenditure needs for at
least the twelve months. After that, the Company may need to raise additional
funds, and it cannot be certain that it will be able to obtain additional
financing on favorable terms, if at all. If the Company cannot raise funds, if
needed, on acceptable terms, it may not be able to develop or enhance its
products, take advantage of future opportunities or respond to competitive
pressures or unanticipated requirements, which could seriously harm its
business, financial condition and results of operations.

2. Summary of Significant Accounting Policies

 Use of Estimates

   The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of expenses during the reporting period.
Actual results could differ from those estimates.

 Concentration of Credit Risk

   Financial instruments that potentially subject the Company to concentrations
of credit risk consist principally of trade accounts receivable. The Company
monitors its customers' financial condition to minimize its risks associated
with trade accounts receivable, but generally does not require collateral from
its customers.

                                      D-21
<PAGE>

                           ATIO CORPORATION USA, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


 Fair Value Disclosure of Financial Instruments

   The Company's financial instruments consist of short-term trade receivables
and payables for which current carrying amounts are equal to or approximate
fair market value. Additionally, interest rates on outstanding debt are at
rates which approximate market rates for debt with similar terms and
maturities.

 Property and Equipment

   Property and equipment are stated at cost. Depreciation is determined for
financial reporting purposes using the straight-line method over the estimated
useful lives (three to ten years) of the assets and for tax purposes using
accelerated methods. Upon sale or retirement of property and equipment, the
related cost and accumulated depreciation or amortization are removed from the
accounts and any gain or loss is included in operations. Leasehold improvements
are amortized over the shorter of their useful life or the lease term.

 Research and Development

   Research and development expenditures are expensed as incurred.

 Software Development Costs

   Costs incurred internally in creating computer software are charged to
expense when incurred. Technological feasibility is established upon completion
of a working model. No costs have been capitalized pursuant to Statement of
Financial Accounting Standards No. 86, "Accounting for the Costs of Computer
Software to be Sold, Leased or Otherwise Marketed," since the period between
achieving technological feasibility and completion of such software is
relatively short and software development costs qualifying for capitalization
have been insignificant.

 Revenue Recognition

   Revenue on software sales is recognized upon shipment, if no significant
vendor obligations remain and collection is probable. Revenue from maintenance
contracts is recognized on a straight-line basis over the contract period which
is typically twelve months. Other service revenues, such as training and
consulting, are recognized when services are performed.

 Income Taxes

   The Company accounts for income taxes using the asset and liability method.
Deferred tax assets and liabilities are recorded based on differences between
the tax bases of assets and liabilities and their carrying amounts for
financial reporting purposes using enacted tax rates in effect for the years in
which the differences are expected to reverse. Valuation allowances are
established when necessary to reduce deferred tax assets to the amount expected
to be realized.

 Interim Financial Statements (Unaudited)

   The unaudited interim financial statements as of September 30, 1999 and for
the nine months ended September 30, 1998 and 1999, included herein, have been
prepared by the Company. The information furnished in the unaudited financial
statements includes all adjustments, consisting only of normal recurring
accruals, which are, in the opinion of management, necessary for a fair
presentation of such financial statements.

                                      D-22
<PAGE>

                          ATIO CORPORATION USA, INC.

                  NOTES TO FINANCIAL STATEMENTS--(Continued)


 Recently Issued Accounting Pronouncements

   In June 1998, the FASB issued SFAS No. 133, "Accounting for Derivative
Instruments and Hedging Activities." The new standard establishes accounting
and reporting standards for derivative instruments, including derivative
instruments embedded in other contracts, and for hedging activities. As
amended by SFAS No. 137, SFAS No. 133 is effective for all fiscal quarters of
fiscal years beginning after June 15, 2000. The Company does not expect SFAS
No. 133 to have a significant effect its financial position or results of
operations.

   In November 1998, the FASB cleared for issuance SOP 98-9, "Modifications of
SOP 97-2, Software Revenue Recognition, With Respect to Certain Transactions,"
which will retain limitations of SOP 97-2 on what constitutes vendor specific
objective evidence of fair value. SOP 98-9 will be effective for all
transactions entered into in fiscal years beginning after March 15, 1999. The
Company believes that its current revenue recognition policies and practices
are consistent with the provisions of the new guidance.

   In February 1998, the AcSEC issued SOP 98-1, "Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use." SOP 98-1
establishes the accounting for costs of software products developed or
purchased for internal use, including when such costs should be capitalized.
The adoption of SOP 98-1 as of January 1, 1999, did not have a significant
effect on its financial position or results of operations.

3. Joint Venture Agreement

   Effective October 1, 1997, the Company entered into a joint venture
agreement. Pursuant to the terms of the joint venture agreement, the Company
issued 4,000,000 shares of its common stock to Atio International in exchange
for $3,500,000 and a royalty-free license with respect to Atio International's
AtioCall products. The joint venture agreement provides for the $3,500,000 to
be provided in cash and development services by Atio PTY, on behalf of Atio
International, due in various installment payments with the final payment made
in August 1998.

   There were additional agreements entered into in connection with the joint
venture agreement as follows:

 Technology and License Agreement

   The Technology and License Agreement (the "License Agreement"), among other
things, provides (i) the Company with a worldwide exclusive right to Atio
International's AtioCall products, (ii) for the transfer of the AtioCall
product rights to the Company, subject to certain conditions, no later than
December 31, 1999, (iii) that Atio PTY furnish certain development services to
the Company in connection with this exclusive right, and (iv) that $800,000 of
the amount owed by Atio PTY for the purchase of the Company's common stock be
paid by providing development services to the Company.

 Technology Development and Support Agreement

   The Technology Development and Support Agreement (the "Development
Agreement"), among other things, provides for Atio PTY to perform such product
development services as to which the Company and Atio PTY mutually agree. The
Company is required to purchase development services exclusively from Atio PTY
until March 1, 1999; thereafter, the Company may purchase such services from
any source. Compensation for the development and support service is based upon
annual budgets mutually agreed to by Atio PTY and the Company. Atio PTY
provided development services to the Company of $548,333 and $266,667 during
1998 and 1997, respectively, which were paid for through an offset to the
stock subscription receivable. The Development Agreement also provides for
additional compensation to Atio PTY of five percent of the

                                     D-23
<PAGE>

                           ATIO CORPORATION USA, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

Company's gross profit from the licensing of AtioCall products for the period
from September 1, 1998 through August 31, 2000. As of December 31, 1998,
$15,200 was owed to Atio PTY relating to the licensing of AtioCall products.

 Shareholders' Agreement

   The Shareholders' Agreement (the "Shareholders' Agreement"), among other
things, sets forth (i) various terms and restrictions for the transfer of any
of the Company's shares of common stock, (ii) certain matters with respect to
the governance of the Company, and (iii) the Company's responsibility to redeem
Sharon's shares of common stock upon his termination or death, at a price as
defined in the Shareholders' Agreement. The Shareholders' Agreement provides
rights including capital call requirements and Venturian's ability to merge the
Company with Atio International.

   The principal terms of the Shareholders' Agreement shall terminate
immediately if a registration statement filed by the Company in connection with
the sale of its common shares is declared effective by the Securities and
Exchange Commission and the sale of common shares is consummated.

   During 1997, 400,000 shares of the Company's common stock were reclassified
to redeemable common stock, based upon the Company's responsibility to redeem
those shares.

 Distribution Agreement

   The Distribution Agreement (the "Distribution Agreement") provides for Atio
International to have exclusive distribution rights outside of North America
for the Company's CyberCall products.

 Services Agreement

   Pursuant to the terms of the Services Agreement (the "Services Agreement"),
Atio International is to provide the Company with certain general and product
development services, as defined for $29,708 per month plus quarterly and
annual incentive payments, as defined.

   The term of the Services Agreement is for four years and may be renewed for
successive one year periods. The Services Agreement may be terminated by the
Company prior to that time upon written notice and may result in 12 months of
additional payments upon termination.

4. Employee Benefit Plans

   Effective January 1, 1998, the Company adopted a defined contribution plan
(the "Plan") which covers all full time employees who are over the age of 21
and have been employed by the Company for three consecutive months. The Company
matches 50% of the first 4% of the employee's contributions. During 1998, the
Company contributed $13,334 to the Plan.

   Through December 31, 1997, the Company participated in a defined
contribution plan (the "Venturian Plan") sponsored by Venturian. Substantially
all employees were eligible to participate in the Venturian Plan after
completing at least one year of service as defined by the Venturian Plan.
Matching contributions were at the discretion of Venturian management.

5. Lease Commitments

   The Company's operations are conducted in a leased facility under an
agreement expiring in July 2000. In addition, the Company also leases certain
office equipment under operating leases. Rent expense was $316,371 and $41,869
for the years ended December 31, 1998 and 1997, respectively.

                                      D-24
<PAGE>

                           ATIO CORPORATION USA, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


   Future minimum lease payments under operating leases are as follows:

<TABLE>
<CAPTION>
      Year Ended December 31
      ----------------------
      <S>                                                               <C>
      1999............................................................. $295,041
      2000.............................................................   18,875
      2001.............................................................   42,335
      2002.............................................................    3,476
</TABLE>

6. Income Taxes

   As of December 31, 1998, the Company has approximately $5,950,000 of net
operating loss carry forwards ("NOL") for federal income tax purposes. The net
operating loss carry forwards are generally available to offset future taxable
income and begin to expire in the year 2012. Utilization of these net operating
loss carry forwards in the future by the Company may be limited or deferred
subject to Section 382 of the Internal Revenue Code. No future tax benefit for
such carry forwards or other temporary differences has been recorded as a
deferred tax asset since utilization of such benefits is not presently deemed
by management to be more likely than not, based on the weight of available
evidence.

7. Stock Options

   In November 1996, the Company's board of directors and shareholders adopted
the 1996 Stock Option Plan (the "1996 Plan") which provides participating
employees the right to purchase common stock of the Company through incentive
and non-qualified stock options. A total of 1,900,000 shares of common stock
are reserved for issuance under the plan.

   Under the 1996 Plan, incentive stock options should be granted at the fair
market value of the common shares on the date of the grant. The option term is
fixed at the date of grant and may not exceed ten years from the date the
option is granted. Options become exercisable in installments over three years.

   The following is a summary of stock option activity:

<TABLE>
<CAPTION>
                                                 1997               1998
                                           ----------------- -------------------
                                                    Weighted            Weighted
                                                    Average             Average
                                                    Exercise            Exercise
                                           Shares    Price    Shares     Price
                                           -------  -------- ---------  --------
   <S>                                     <C>      <C>      <C>        <C>
   Outstanding at beginning of year......  200,000   $0.50     342,500   $0.56
   Granted...............................  180,000   $0.61   1,757,900   $0.63
   Forfeited.............................  (37,500)  $0.50    (516,900)  $0.57
                                           -------           ---------
   Outstanding at end of year............  342,500   $0.56   1,583,500   $0.62
                                           =======           =========
   Options exercisable at end of year....  152,500   $0.50     100,000   $0.50
                                           =======           =========
   Weighted average fair value of options
    granted
    during the year......................            $0.57               $0.25
</TABLE>

                                      D-25
<PAGE>

                           ATIO CORPORATION USA, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


   The following summarizes information about stock options outstanding as of
December 31, 1998:

<TABLE>
<CAPTION>
               Options Outstanding                     Options Exercisable
   -------------------------------------------------  -----------------------
                              Weighted
                               Average     Weighted                 Weighted
                              Remaining    Average                  Average
   Exercise      Number      Contractual   Exercise     Number      Exercise
    Price      Outstanding      Life        Price     Exercisable    Price
   --------    -----------   -----------   --------   -----------   --------
   <S>         <C>           <C>           <C>        <C>           <C>
     $.50         100,000       8 years     $0.50       100,000      $0.50
     $.63       1,483,500     9.7 years     $0.63
                ---------
                1,583,500
                =========
</TABLE>

   For the purpose of applying the fair value method as prescribed by SFAS No.
123, the Company used the following weighted average assumptions for grants in
1998; dividend yield of 0%, expected volatility of 0%, a risk-free interest
rate of 5.50% based on quoted U.S. Treasury rates on the date of the related
option grants, and an expected life of 7 years.

   During 1997, the Company's majority shareholder, Venturian Corp., was a
publicly-held company. Therefore, during 1997 the fair value of each option was
estimated using the Black-Scholes option-pricing model with the following
weighted-average assumptions for grants: dividend yield 0%, expected volatility
of 200%, risk-free interest rate of 6.37%, and an expected life of 3 years.

 Stock-Based Compensation

   In accordance with Statement of Financial Accounting Standards No. 123,
"Accounting for Stock-Based Compensation" ("SFAS No. 123"), the Company has
elected to account for stock-based compensation using the intrinsic value
method prescribed in Accounting Principles Board Opinion No. 25, "Accounting
for Stock Issued to Employees," and related interpretations ("APB Opinion No.
25"). Accordingly, compensation cost for stock options granted to employees is
measured as the excess, if any, of the fair value of the Company's stock at the
date of the grant over the amount an employee must pay to acquire the stock.
Compensation expense recognized for stock options granted to employees with an
exercise price below fair market value at the date of grant was $19,063 during
1998.

   As permitted by SFAS No. 123, the Company applies APB Opinion No. 25 and
related interpretations in accounting for its stock option plans and,
accordingly, does not recognize compensation expense related thereto. If the
Company had elected to recognize compensation expense based on the fair value
of the options granted at grant date as prescribed by SFAS No. 123, the
Company's net loss would have been as follows:

<TABLE>
<CAPTION>
                                                          1997         1998
                                                       -----------  -----------
      <S>                                              <C>          <C>
      Net loss as reported............................ $(3,272,324) $(4,168,817)
      Net loss pro forma..............................  (3,344,944)  (4,277,281)
</TABLE>

8. Bank Overdrafts

   As of December 31, 1998, the Company had $38,938 of bank overdrafts on its
cash accounts. This amount is included in accounts payable.

                                      D-26
<PAGE>

                          ATIO CORPORATION USA, INC.

                  NOTES TO FINANCIAL STATEMENTS--(Continued)


9. Major Customers

   The Company had the following customers that accounted for more than 10% of
the Company's revenue:

<TABLE>
<CAPTION>
                                                                 1997     1998
                                                               Revenue  Revenue
                                                               -------- --------
      <S>                                                      <C>      <C>
      Customer
        A..................................................... $197,088 $182,600
        B.....................................................  317,771
        C.....................................................  103,662
        D.....................................................   89,928
        E--Related party......................................           127,722
</TABLE>

10. Related Party Transactions

 Due to Affiliate

   Pursuant to the Services Agreement, the Company owed Atio International
$23,248 and $51,364 for certain general services performed during the years
ended December 31, 1998 and 1997, respectively.

   In connection with the joint venture agreement, during 1997 Venturian made
a capital contribution of $3,088,307 to the Company through the conversion of
amounts owed to Venturian. In addition, the Company received advances from
Venturian for working capital needs. As of December 31, 1997, advances of
$85,661 were payable to Venturian. The Company was charged interest at the
prime rate (effective rate of 8.5% as of December 31, 1997) on advances
received during 1997. Interest expense of $56,691 was recorded by the Company
for the year ended December 31, 1997. The amount due to Venturian of $85,661
was paid in full during 1998.

 Note Payable--Affiliate

   During 1998, the Company received advances totaling $1,761,672 from Atio
International for working capital needs. Pursuant to record of action dated
October 8, 1998, Atio International has the option to demand repayment of the
loan or to convert the loan into shares of the Company's common stock on the
basis of $.63 per share. This option is exercisable within 12 months from
September 30, 1998. Repayment would include interest calculated at U.S. prime
interest rate. The Company has accrued interest expense of $50,000 calculated
at an average interest rate of 8.25%.

 Other Transactions

   Effective October 1, 1997, Atio International acquired a 50 percent non-
controlling interest in the Company through funding provided by Atio PTY.
During 1998, the Company had sales transactions, totaling $127,722, with Atio
PTY which occurred in accordance with the Distribution Agreement.

11. Subsequent Events--UNAUDITED

 Factored Accounts Receivable

   On January 7, 1999, the Company factored, with recourse, their accounts
receivable balance through Silicon Valley Financial Services. The amount
factored included a significant portion of the December 31, 1998 accounts
receivable balance. Once Silicon Valley Financial Services was repaid during
March 1999, this financing arrangement was terminated at an immaterial cost to
the Company.


                                     D-27
<PAGE>

                           ATIO CORPORATION USA, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

 Bridge Loans

   The Company obtained a bridge loan with CC Management LLC dated March 12,
1999. The initial maximum borrowing amount was $1,000,000 and was available
subject to an interim drawdown schedule of $550,000 available immediately
increased by $150,000 in each of the three succeeding months. The loan is
collateralized by a first secured interest in all the Company's tangible and
intangible assets currently owned or hereinafter acquired. Interest on the
principal accrues at 12.875% and is payable monthly. The principal amount plus
any accrued interest was due on August 30, 1999.

   On June 3, 1999, the Company entered into a Loan Restructure Agreement with
the lender. The lender agreed to extend the time period for the private
placement from June 1, 1999 to July 15, 1999, advance the final $150,000 on
June 3, 1999 pursuant to the original bridge loan agreement, and to advance up
to an additional $350,000 on or after June 7, 1999 for a maximum borrowing of
$1,350,000. At September 30, 1999, $1,350,000 was due under this agreement plus
accrued interest of $37,500. The loan was in default.

   Under these various bridge loan agreements, the Company agreed to issue
warrants exercisable for shares equal to 5.7% of the outstanding common stock
on a fully diluted basis at the time of issuance at an exercise price of $0.005
per warrant share. The warrants will be exercisable for a period of seven
years.

   The October 28, 1999 term sheet, established an agreement to restructure and
bring this bridge loan into compliance with CC Management LLC by establishing a
new interest rate of 9% and extending the maturity date to June 30, 2001. The
date will automatically be extended to January 1, 2002 if $2,500,000 of
additional capital is raised by ATIO. The agreement also allowed for the
conversion of the debt to registered common stock at $8.00 per share and fixes
the lender's warrant position at 176,301 shares of post-merger CESH common
stock. Pursuant to APB 14 and Black Scholes, the value of these warrants was
$480,000 and was fully expensed during the nine months ended September 30,
1999.

 Merger

   An agreement and plan of merger was executed in December 1999 among CE
Software Holdings, Inc. ("CESH"), the ATIO shareholders, the ATIO Directors,
Venturian Corp. and CC Management LLC. The agreement provided for, among other
things: the intent to consummate a merger between ATIO and CESH; the delivery
of $5,000,000 of cash or cash equivalents by CESH for ATIO's benefit at the
close of the merger; short-term funding from Venturian Corp., and CESH to fund
continuing operations; the formation of a new option plan; the restructuring of
the terms of the CC Management LLC loan agreement and warrant agreement, and;
additional equity investments totaling $3,000,000 by the existing institutional
shareholders. The plan also requires Venturian, either by exchange of
indebtedness, by cash payment or by a combination, to purchase 148,900 shares
of CESH common stock for $964,872 at the date of merger, or it will forfeit a
similar amount of shares. This merger is also subject to shareholder approval
by CESH shareholders.

 Related Party Debt and Conversion

   Between October 1999 and February 2000, CESH and Venturian loaned ATIO
$1,741,000 and $150,000, respectively. Furthermore, $1,990,762 worth of
obligations to ATIO was satisfied through the issuance of 3,145,220 common
shares.

                                      D-28
<PAGE>

                           ATIO CORPORATION USA, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


 Restructuring

   In mid-December 1999 the Board of Directors and shareholders of ATIO
restructured the business and issued several corporate resolutions. Among them
was the issuance of 1,100,000 shares of ATIO common stock as consideration for
an amendment of the License and Transfer Agreement by ATIO Corporation
International, Inc. ("International") that transferred all ATIO International
Call Product Rights and international CyberCall distribution rights to ATIO
USA. As a result of this transaction, ATIO USA became a controlling
shareholder. As such, the rights received by ATIO USA will be accounted for at
the predecessor basis of International.

 Stock Split and Recapitalization

   A two for one stock split was authorized as part of the mid-December
corporate resolutions. All references to shares and per share amounts included
in these financial statements and related notes have been adjusted to give
retroactive effect to the stock split. The Board also approved increasing the
number of authorized shares to 50,000,000 shares.

 Planned Private Equity Financing

   The Company has negotiated with a brokerage firm to manage a private
placement financing and assist the Company, as an agent, in raising up to $5
million of equity capital (the "Financing"), on a best-efforts basis. The
shares to be sold in the placement will have detachable warrants for an
additional $5 million whose terms are not yet established.

 Stock Options

   During the nine months ended September 30, 1999, the Company issued stock
options on 1,927,500 common shares at an exercise price of $.625.

                                      D-29
<PAGE>

                                                 CE SOFTWARE HOLDINGS, INC.
                                                 1801 INDUSTRIAL CIRCLE
PROXY                                            WEST DES MOINES, IOWA 50265
- --------------------------------------------------------------------------------

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN
BY THE UNDERSIGNED STOCKHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE
VOTED FOR ALL NOMINEES FOR ELECTION AS DIRECTORS AND FOR PROPOSALS 2-5.
<PAGE>

The undersigned hereby appoints Richard A. Skeie and John S. Kirk as Proxies,
each with the power to appoint his substitute, and hereby authorizes them to
represent and to vote, as designated below, all shares of common stock of CE
Software Holdings, Inc. (the "Company"), as held of record by the undersigned
on March 10, 2000, at the annual meeting of shareholders to be held
            , 2000, or any adjournment thereof.

1. ELECTION OF DIRECTORS:
   [_] FOR all nominees listed below
       (EXCEPT AS MARKED TO THE CONTRARY BELOW)

   [_] WITHHOLD AUTHORITY to vote for all
       nominees listed below.

       01 Sheldon T. Fleck  02 Christian F. Gurney  03 John S. Kirk
       04 David J. Lundquist  05 Richard A. Skeie

(Instructions: To withhold authority to vote for any  +-----------------------+
indicated nominee, write the number(s) of the         |                       |
nominee(s) in the box provided to the right.)         +-----------------------+


                            *  Please fold here  *


2. Proposal to approve the Agreement and Plan of Merger, as amended and
   restated (the "Agreement and Plan of Merger," a copy of which is attached as
   Appendix A to the proxy statement), dated as of December 28, 1999 by which:

   (a) Atio Corporation USA, Inc. will merge with and into the Company;

   (b) The stock of the Company's subsidiary CE Software, Inc. will be
       distributed to the Company's stockholders;

   (c) Willem Ellis, Thomas Patin,        ,         and         will be
       designated as directors of the Company to replace and become successors
       to those persons serving as directors of the Company immediately prior to
       the effective time of the merger; and

   (d) The Company's Certificate of Incorporation will be amended as described
       in Exhibit 1.1.4 to the Agreement and Plan of Merger.

       For [_]   Against [_]   [_] Abstain



3. Proposal to authorize the issuance of a maximum of 715,000 shares of common
   stock in a private offering, at a per share price not less than $7.00, plus
   warrants to purchase an equal number of additional shares of common stock at
   an exercise price not less than $9.00.

       For [_]   Against [_]   [_] Abstain



4. Proposal to amend the 1990 Stock Option Plan, 1992 Stock Option Plan, and
   Nonemployee Directors Stock Option Plan by:

   (a) increasing the number of shares reserved to be issued upon exercise of
       options granted under the 1990 Stock Option Plan to 130,000;

   (b) prohibiting the granting of any further options under any of these plans;
       and

   (c) providing that all options granted under any of these plans to persons
       who were directors or employees of either CE Software Holdings, Inc. or
       CE Software, Inc. immediately prior to the effective time of the merger,
       other than persons who will continue as employees of CE Software
       Holdings, Inc., will be exercisable as of the effective time of the
       merger and for a period of three months thereafter.

       For [_]   Against [_]   [_] Abstain



5.  Proposal to adopt the 2000 Stock Option Plan.

       For [_]   Against [_]   [_] Abstain



6. In their discretion, the Proxies are authorized to vote upon such other
   business as may properly come before the meeting.

[Please sign the Proxy and return it in the enclosed envelope]. Please sign
exactly as name appears below.
                                           Dated _________________________, 2000

                                           +-----------------------------------+
                                           |                                   |
                                           +-----------------------------------+

                                           When shares are held by joint
                                           tenants, both should sign. When
                                           signing as attorney, executor,
                                           administrator, trustee or guardian,
                                           please give full title. If a
                                           corporation, please sign a full
                                           corporate name by President or
                                           authorized officer. If a partnership,
                                           please sign in partnership name by
                                           authorized person.


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