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readme.txt
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2000-01-23
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Eraser 4.0 (January 24th 2000)
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CONTENTS
1. LEGAL
1.1. Copyright
1.2. License agreement
1.3. Disclaimer
1.4. Digital signature
2. SYSTEM REQUIREMENTS
2.1. Libraries
3. HOW TO INSTALL & UNINSTALL
3.1. Before installing
3.2. Installing
3.3. Help?
3.4. Uninstalling
4. DESCRIPTION
5. AUTHOR
5.1. Contacting
5.2. Web site
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1. LEGAL
1.1. Copyright
Eraser Copyright ⌐ 1997-2000 by Sami Tolvanen. All
rights reserved.
By using this software you accept all the terms and
conditions of the license agreement and disclaimer
below.
All registered and unregistered trademarks mentioned in
this document are the property of their respective
holders.
1.2. License agreement
Eraser is a FREEWARE program and must be provided at no
charge.
Feel free to share this program with your friends, but
do not give it away altered or as part of another system
without permission from the author.
1.3. Disclaimer
Eraser is provided on an "AS IS" basis, without warranty
of any kind either express or implied, including
warranties of merchantability or fitness for a
particular purpose.
In no event will the author be liable to you for
damages, direct or consequential, which may result from
the use of this software.
The user must assume the entire risk of using the
software.
1.4. Digital signature
The setup program is signed with Pretty Good Privacy
(PGP) (public key available at web site) for verifying
the authenticity. The signature file should be included
with the archive.
If you did not receive a separate digital signature file
with this archive, download the official version
distribution at the home page (see section 5.2).
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2. SYSTEM REQUIREMENTS
This version of Eraser runs on Windows 95, 98, NT 4.0 and
later.
2.1. Libraries
It may be necessary for you to update the following
dynamic link libraries before installing Eraser.
These files were not included in the archive because of
their size and because they are part of Windows 98 and
are included with many applications including Internet
Explorer.
2.1.1. MFC42.dll and MSVCRT.dll
You must have Microsoft Foundation Classes (MFC)
Libraries (version 6.00 or later) installed in
order to use Eraser.
If you do not have the files installed, or get an
error message (linked to a missing export...)
when running the program, you can download (583K)
the latest versions by following the link below.
http://www.tolvanen.com/common/mfcdlls.zip
Unzip the archive after downloading and see
"readme.txt" for instructions on how to install.
2.1.2. COMCTL32.dll
You must have version 4.72 or later version of
the Windows Common Control Library in order to
use the new Eraser user interface.
If you are using Windows 95 or NT and have not
installed Internet Explorer 4.01 or later, you
must download an update. Windows 98 comes with
the updated library.
You can download the library update (427K)
from Eraser home page.
http://www.tolvanen.com/common/401comupd.exe
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3. HOW TO INSTALL & UNINSTALL
3.1. Before installing
Be sure to uninstall any previous version of Eraser
before installing. Also make sure you have the required
libraries installed before running setup (see section
2.1).
If the setup program asks you to reboot Windows after
installation, you must do that before running Eraser.
3.2. Installing
SETUP.EXE is a self-extracting executable containing the
program files.
Run SETUP.EXE to install Eraser. The setup program will
extract the files and copy them to a desired location.
3.3. Help?
After installing, you can open the help file (in the
Eraser directory) by double-clicking the ERASER.HLP
file.
If the help file does not answer your question, do not
hesitate to contact the author (see section 5.1).
You can also get answers to some frequently asked
questions and read a step-by-step installation
instructions at Eraser home page (see section 5.2).
3.4. Uninstalling
You can uninstall Eraser normally via Control Panel,
Add/Remove Programs. You should not remove the files
manually because the settings in the registry would not
be removed.
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4. DESCRIPTION
Eraser is an advanced security tool, which allows you to
completely remove sensitive data from your hard drive by
overwriting it several times with carefully selected
patterns.
You can drag and drop files and folders to the on-demand
eraser, use the convenient Explorer shell extension or use
the integrated scheduler to program overwriting of unused
disk space or, for example, browser cache files to happen
regularly, at night, during your lunch break, at weekends or
whenever you like.
The patterns used for overwriting are based on Peter
Gutmann's paper "Secure Deletion of Data from Magnetic and
Solid-State Memory" and they are selected to effectively
remove the magnetic remnants from the hard disk making it
impossible to recover the data.
Other methods include the one defined in the National
Industrial Security Program Operating Manual of the US
Department of Defense and overwriting with pseudo-random data
up to one hundred times.
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5. AUTHOR
Sami Tolvanen, the author of this software is a student in
university of technology in Finland. For more information,
visit his home page at http://www.iki.fi/st/.
5.1. Contacting
Via Internet e-mail, eraser@tolvanen.com.
5.2. Web site
You can download the latest version of Eraser and the
required libraries at Eraser home page.
http://www.tolvanen.com/eraser/
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