    This Read Me file includes:

      -  Upgrade instructions for existing users of Post.Office for Windows NT
      -  Installation instructions for new users of Post.Office for Windows NT

    ====================================================================

           UPGRADE INSTRUCTIONS - POST.OFFICE v. 2.0 - WINDOWS NT

    The same software is used for installing Post.Office version 2.0,
    upgrading from an earlier version, or upgrading your 2.0 license
    to accommodate additional accounts/mailboxes.  The program checks
    to see if Post.Office already exists, then self-adjusts to perform
    the necessary installation or upgrade procedure.

    REVIEW THE FOLLOWING *BEFORE* UPGRADING YOUR SYSTEM:
    ----------------------------------------------------

    THE POST.OFFICE UPGRADE OPERATION IS PERFORMING TASKS OF CONSIDERABLE
    COMPLEXITY INCLUDING DATABASE REGENERATION.  TO ENSURE SUCCESS YOU MUST
    BACKUP YOUR SYSTEM PRIOR TO UPGRADING AND ALLOW ADEQUATE TIME TO COMPLETE
    THE POST.OFFICE UPGRADE OPERATION.  IT IS ESSENTIAL THAT THE PROCESS
    RUN TO COMPLETION WITHOUT INTERRUPTION.

    The time required to execute the upgrade process will vary based on the
    amount of memory, processing speed, and the number of installed accounts.
    Internal benchmarking conducted on a machine with 32 mb of RAM and
    a Pentium 100 processor running Windows NT 3.51 with Service Pack 3
    produced the following upgrade times.  Please compare your system's
    statistics to those provided below, and plan accordingly.

        Number            Number of              Upgrade Time
       of Users       Addresses per User           (Min:Sec)

         500                 10                       2:20
        2000                  3                       3:24
        2000                 10                       7:35

    BACK UP YOUR EXISTING SYSTEM

    In the interest of safety and good software practices, existing users
    of Post.Office should back up their system before upgrading to
    version 2.0.  Upgrading is a nondestructive process which retains all mail,
    and account and configuration information; however, if the upgrade
    operation is interrupted your mail system can be corrupted.
    Instructions on restoring your mail system are provided in
    the Backup and Restore section of the FAQ (available at
    http://www.software.com/tech/faq/FAQ_Contents.html), but those
    instructions presume existence of the required backup files.

    To assist you in completing this essential operation, backup instructions
    are included as part of the upgrade instructions that follow.

    VERIFY THAT ADEQUATE SPACE IS AVAILABLE FOR EXPANSION OF THE REGISTRY

    The size of the Registry expands during upgrade.  If insufficient space
    is available the upgrade will fail and recovery will be required.
    Although the exact amount of space required depends on a variety of
    factors including the number of Post.Office accounts currently established,
    a good rule of thumb is that Maximum Registry Size should be at least
    twice Current Registry Size.  To verify that sufficient size is available
    do the following:

    1.) From the Program Manager double click on the Main\Control Panel\System
        icons in the order indicated.

    2.) Click on the Virtual Memory button in the System window.

    3.) In the Vitual Memory window check the values in the fields titled
        Current Registry Size and Maximum Registry Size.  The maximum size
        should be at least twice the current size.  If it is not, make the
        necessary correction and click on the OK button.

    Registry size should now be sufficient to complete the upgrade successfully.

    UPDATE ANY CUSTOMIZED FORMS

    Because Post.Office forms were significantly modified in version 2.0,
    users working with customized versions of the Post.Office forms need to
    perform the following steps when upgrading their system to version 2.0.

    1. Obtain copies of the standard forms for Post.Office version 2.0 by
       sending a request to Support@Software.com

    2. Revise the standard forms as desired.

    3. Follow the detailed instructions presented below to backup your system
       and upgrade the Post.Office software.

    4. Once the upgrade process is complete, re-submit your revised versions
       of the standard 2.0 forms for use with the upgraded system.

    TRIAL USERS ONLY

    Please note that all users upgrading to Post.Office 2.0 from a TRIAL VERSION
    of Post.Office 1.9.x (current or expired) need to purchase a valid license
    from Sales@Software.com.

    Because of changes in our licensing system, upgrading to Post.Office 2.0
    from a TRIAL VERSION of Post.Office 1.9.x yields an INVALID LICENSE.  While
    running under an invalid license the following will be true:

    1) You cannot create additional accounts beyond those currently established.
    (All accounts existing at the time of the upgrade will be retained.)

    2) All mail sent after the upgrade will include a notice that you are using
    an invalid license.

    3) A notice that the license is invalid will also appear in the
    Authentication Web Form.

    Note:  Upgrade instructions apply to current users of the Post.Office
    software.  If you are installing Post.Office for the first time, refer
    to the Installation Instructions section of this document or the detailed
    installation instructions found in Chapter 3 of the Post.Office Manual.

    -------------------------------------------------------------------------
                         Windows NT Upgrade Instructions

    To permit recovery if the upgrade process is accidentally interrupted
    (or fails to complete for any reason), backup instructions are included
    as the initial steps in the upgrade process. DO NOT omit these important
    first steps.

    1. Back up the required Registry information by launching the Registry Editor,
       (REGEDT32.EXE), locating the following keys, and saving each one
       independently (by selecting the desired key, pulling down the Registry menu,
       and then choosing the Save Key command).

       a) HKEY_LOCAL_MACHINE\SOFTWARE\Software.com\Post.Office
          (suggested name & location: anotherhost\temp\Post.OfficeRegKey1.9.3)

       b) HKEY_LOCAL_MACHINE\SOFTWARE\Software.com\Post.Office\MTA-Accounts
          (suggested name & location: anotherhost\temp\MTA-AccountsRegKey1.9.3)

    2. Back up the required file system information.  The exact location
       of the required directories can be found via the Program Manager by
       double clicking on the Main\Control Panel\Post.Office icons in the
       order indicated.  When the Post.Office applet window appears look at
       the bottom to determine the locations of the following items:

       a) The Post.Office Directory containing configuration information
          (suggested name & location: anotherhost\temp\Post.Office1.9.3config)

       b) the Program Directory containing Post.Office executables
          (suggested name & location: anotherhost\temp\Post.Office1.9.3execs)

       c) the Mailbox Directory containing your mailbox information
          (suggested name & location: anotherhost\temp\Post.Office1.9.3mailbox)

       Back up those directories in addition to the registry keys mentioned in
       Step 1 above.

       Note:  If you aren't already doing so, you should be backing up these items
       on a regular basis.

    3. Locate the Post.Office package either on the CD on which it was delivered,
       or in the directory in which you stored a downloaded version.

    4. If you obtained the software from our web or ftp site you will need
       to extract the Post.Office package. The Intel package will self extract
       if you "run" it from the command line or double-click on the file from within
       the File Manager.  All other versions require use of an extraction utility
       (UNZIP.exe for mips, ICOMP.exe for DEC Alpha and Power PC) which can be
       downloaded from the same directory in which you found the Post.Office package.

       Place the entire contents of the package into a NEW temp directory since
       there are no guarantees that existing older versions will be overwritten
       during extraction.  (When installation is complete you can remove the
       temporary directory.)

    5. Verify that you are logged on properly.  If you are on a workstation
       or backup domain server you must be logged on as the Administrator of
       your host machine before running Setup.exe.  Only if you are on a
       primary domain controller can you log in as the Administrator of
       your domain.

    6. Run Setup.exe

       Note:  The Setup program occupies only half your screen to allow for
       simultaneous display of Simple Online Support (SOS). SOS is intended for
       use as a guide during initial installation, however it contains
       supplemental information that may also be of interest to people
       upgrading their software.  To access SOS, launch your browser and point
       it to:  http://www.software.com/tech/sos/po-install.htm

    7. The Installshield GUI will prompt you to choose one of three options:
       Remove, Update, or Set License Number.

       Choose Update and click on the Next button.  This installs all the new
       software and configuration files, retaining the values of any parameters
       you have customized and all information in your accounts database.  When
       it's finished, the Setup program will re-start Post.Office for you.

    ============================================================================

            INSTALLATION INSTRUCTIONS - POST.OFFICE v. 2.0 - WINDOWS NT

    1. Open the Simple Online Support (SOS) tool by launching your browser and
       pointing it to:  http://www.software.com/tech/sos/po-install.htm
       This tool provides detailed information on pre-installation requirements,
       the installation process, and related topics such as proper configuration
       of DNS records.

       If you are unable to access the SOS tool you must read the detailed
       installation instructions which appear in Chapter 3 of the Post.Office
       manual in order to obtain the necessary pre-installation information.

    2. Verify that all pre-installation requirements have been met, including
       the creation of a special NT user and group for the exclusive use of
       Post.Office.

    3. Locate the Post.Office software package that was downloaded from the
       Software.com web site (http://www.software.com), obtained via ftp from the
       Software.com ftp site (the ftp/public/software/PO20 directory), or
       delivered directly on CD.

    4. If you obtained the software from our web or ftp site you will need
       to extract the Post.Office package. The Intel package will self extract
       if you "run" it from the command line or double-click on the file from
       within the File Manager.  All other versions require use of an extraction
       utility (UNZIP.exe for mips, ICOMP.exe for DEC Alpha and Power PC) which
       can be downloaded from the same directory in which you found the
       Post.Office package.

       Place the entire contents of the package into a NEW temp directory since
       there are no guarantees that existing older versions will be overwritten
       during extraction.  (When installation is complete you can remove the
       temporary directory.)

    5. Verify that you are logged on properly.  If you are on a workstation
       or backup domain server you must be logged on as the local Administrator
       of your host machine before running Setup.exe.  Only if you are on a
       primary domain controller can you log in as the Administrator of
       your domain.

    6. Run Setup.exe

       Note:  The Setup program occupies only half your screen to allow for
       simultaneous display of Simple Online Support (SOS).

    7. Respond as prompted to complete the installation process (making entries
       via Installshield and then the web interface) using SOS to guide you
       through each step.