	        			May 5, 1998

Diskeeper[R] 4.0 (Build 188) for Windows NT[R] V4.0 

For x86 Platforms

This text file provides information you should know about 
the Dk4188si.zip file and this beta test version of Diskeeper.


PLATFORMS AND OPERATING SYSTEM VERSIONS SUPPORTED
=================================================

This version of Diskeeper is supported on Intel x86 platforms 
running Windows NT 4.0 builds 1381 and higher.  


IMPORTANT NOTICES
=================

We are now to the release candidate stage with Diskeeper 4.0.
This version is still test software, but we do not anticipate
any problems with the product that should impact its use in
a production environment.  Still, common sense should dictate 
which computer(s) you use for testing this product.

If you find any problem with Diskeeper during this stage of the
field test, please use the problem reporting form found at the 
end of this text file.  Please use a separate form for each 
problem reported.  Also, please include the completed form in 
the body of your e-mail message, not as an attachment to the 
e-mail message.


MINOR CHANGES AND BUG FIXES IN THIS RELEASE
===========================================

The following changes have been made to this version, since the
previous build released to field test (187):

1.  Changes were made to correctly handle directory names that 
    begin with a period (.).

2.  A change was made in the way Diskeeper checks for membership
    in the Administrators group.  This corrects a problem noted
    by several sites -- they were not able to run Diskeeper,
    although they were members of the Administrators group.

3.  Several cosmetic changes were made to the Diskeeper 
    installation and startup displays.


MAJOR CHANGES IN DISKEEPER 4.0
==============================

The following major additions have been made to Diskeeper since
the previous version released to the public (Version 3.0 Build 
172):

1.  This version of Diskeeper introduces Boot-Time Paging File
    Fragmentation Reduction.  This allows Diskeeper to reduce
    or eliminate pagefile fragmentation.

2.  The Boot-Time Directory Consolidation option under the 
    Special Tools menu has been changed to Boot-Time Defragmenter.
    The dialog box displayed when this option is selected includes 
    the option to Reduce Paging File Fragmentation.  This option 
    is not selected by default.  The same dialog box also includes 
    the option to Consolidate Directories, which is also not 
    enabled by default.

    When you select Reduce Paging File Fragments, Diskeeper checks 
    for a recent fragmentation analysis.  If one has been run, it
    examines the analysis to see if contiguous space exists for
    pagefile defragmentation.  If an analysis has not been run 
    recently, Diskeeper prompts to ask if an analysis should be 
    run.  The analysis is necessary before running the Pagefile 
    Fragmentation Reduction feature.


MINOR CHANGES IN DISKEEPER 4.0
==============================

The following changes have been made to Diskeeper since the 
previous version released to the public (Version 3.0 Build 
172):

1.  The date and time of a saved fragmentation analysis is 
    now shown when a saved analysis is displayed.

2.  An icon is now displayed in the Windows NT taskbar when 
    Diskeeper is actively running on a partition.

3.  Fixes have been made to the Set It and Forget It 
    scheduling mechanism to allow Diskeeper to run on the 
    same day a schedule is specified.  In previous versions, 
    if a Set It and Forget It job was scheduled to run 
    Everyday from 10:00 to 12:00, and the current time was 
    9:00, the Diskeeper job would not actually start running
    until 10:01 the following day.  This has been corrected.

4.  Several access violation bugs have been fixed.

5.  Checks have been added to Diskeeper 4.0 to prevent it 
    from running on Windows NT 5.0.  This is because Diskeeper 
    does not currently support the new NTFS and FAT32 file 
    systems.

6.  Checks have been added to prevent Diskeeper 4.0 from 
    running on FAT32 partitions under Windows NT 4.0.

7.  Changes have been made to allow Diskeeper to release memory 
    that was previously used for the graphic display.

8.  The Boot-Time Directory Consolidation feature now supports 
    removable media with cluster sizes up to and including 4096 
    bytes.

9.  The opening splash screen now displays correctly in 256 
    color mode.


KNOWN INCOMPATIBILITIES IN THIS RELEASE
=======================================

1.  Diskeeper for Windows NT is not compatible with systems 
    using the DPT Smart Cache III controller, unless Service 
    Pack 1, 2 or 3 for Windows NT 4.0  has been installed.  Do 
    not run Diskeeper on systems using the DPT Smart Cache 
    III controller until you install Service Pack 1, 2 or 3 on 
    your Windows NT system.

2.  The on-screen Diskeeper Boot-time Directory Consolidation 
    progress information cannot be viewed on your monitor if 
    you are using a Diamond Stealth Viper video card or any 
    other video card that does not support Windows NT boot-time 
    display.  You can still, however, record a summary file 
    during the Boot-Time Directory Consolidation.  See the 
    Diskeeper Help system for more information on the Boot-Time 
    Summary File.

3.  Diskeeper 4.0 is not compatible with anti-virus products
    that check each file when the file is opened.  This behavior,
    found in McAfee and Norton anti-virus tools (as well as 
    others), has been known to conflict with the file movement 
    methods used by Diskeeper.  To prevent a Windows NT "bug 
    check" crash, it may be necessary to disable the "active file
    scan" options of these products during a defragmentation run.


KNOWN RESTRICTIONS IN THIS RELEASE
==================================

1.  At times, the View menu Refresh option to update the tree
    view of the network computers may not reflect the current
    network.  This is due to network communication limitations
    in Windows NT.

2.  You cannot use the Network Scheduler to schedule 
    defragmentation on a computer to which you are currently
    connected.  Use the Partition Scheduler option to schedule 
    defragmentation of partitions on the machine you are 
    connected to -- use the Network Scheduler option to 
    schedule machines you are not connected to.

    This means you must be connected to a machine other than
    your local computer (by clicking on a remote computer 
    in the Diskeeper network tree view display) if you want 
    to use the Network Scheduler to schedule your local 
    computer.

3.  Due to Windows NT security issues, it is necessary for you
    to have Administrator privileges on both the local machine
    and any remote computers upon which you set Diskeeper 
    schedules.  Your account on the remote computer must also
    have the same password as your account on the local machine.

4.  If a remote computer is shut down while Diskeeper Server is
    connected to that computer, you will be unable to re-connect 
    Diskeeper to any other computers, including your local 
    computer.  It may be necessary in such circumstances to use
    the Windows NT Task Manager to end the Diskeeper task.
    After doing this, Diskeeper will operate properly.

5.  On very large partitions, Diskeeper may be unable to analyze
    or defragment the files on the partition, due to memory 
    limitations.  The exact values for this are determined on a 
    case-by-case basis.  The size of the partition, the cluster
    size of the partition, the number of files, the degree of
    fragmentation, and other factors affect the amount of system
    memory used by Diskeeper.  For example, if a partition exceeds
    60 GB in size or contains more than 9 million files, system
    memory requirements can exceed 1 GB. 


REQUIRED PRIVILEGES
===================

You must be a member of the Administrators group to install and 
operate Diskeeper.


INSTALLING DISKEEPER 
====================

Note:  Install Diskeeper into a different directory folder than
the folder you are installing from.  Not following this
recommendation can cause funny behavior (depending on your sense
of humor).  

After downloading the DK4188si.ZIP file into a temporary
directory on your Windows NT system and UnZipping it, 
follow these steps to install Diskeeper:

1.  From Windows NT Explorer or File Manager, double click on
    SETUP.EXE in the directory where this text file resides.

2.  Read the information displayed in the Setup Installation 
    Wizard boxes and click the "Next" button as appropriate.

3.  In the "Choose Destination Location" dialog box, either 
    accept the default installation location, or click the 
    "Browse" button to specify a different disk and/or 
    directory.  If you specify a directory that does not exist, 
    the setup program will create it for you.  Click the 
    "Next" button after specifying a disk and directory, or to 
    accept the default installation location.

4.  The installation offers you the opportunity to register
    Diskeeper on Executive Software's Web Site.  

5.  After a short period of copying files, the installation is 
    complete.


UNINSTALLING DISKEEPER
======================

Follow these steps to remove Diskeeper from your computer:

1.  From Control Panel, double click "Add/Remove Programs".

2.  Click the "Install/Uninstall" tab.

3.  Highlight "Diskeeper".

4.  Click the "Add/Remove" button.  This removes the 
    Diskeeper program files from your computer.

5.  It may be necessary to manually delete the Diskeeper 
    installation directory.




(c) Copyright 1997, 1998 Executive Software International, Inc.  
    All rights reserved.

Diskeeper is a registered trademark owned by Executive 
Software International, Inc.

Microsoft and Windows NT are registered trademarks owned by 
Microsoft Corporation.

All other trademarks are the property of their respective owners.
