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1994-11-13
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******************************************************************************
* *
* HPFSTool - PM Undelete for HPFS Drives *
* *
* Version 1.5 *
* *
* 13-November-1994 *
* *
* Copyright (C) 1994 by Peter Kraufmann, Berlin, Germany *
* *
******************************************************************************
What's new ?
------------
- Fixed the bug that caused crashing down while scanning on some machines :-)
- Bugfix for creating UnDel.$$$ on locked HPFS386-drives
- Resized the Undelete dialog for 640x480 resolution
- Added Minimize-buttons to Undelete/Sector-editor dialogs
- MainWindow minimizes automaticly when dialogs are opening
Overview
--------
HPFSTool contains a *real* Undelete for OS/2 HPFS-Drives. That means that you
don't have to use the DELDIR statement in CONFIG.SYS like in other "UnDels".
You are able to recover almost any file that has been deleted on any HPFS-Drive
in your system.
Also you have a PM-based sector editor included which makes it possible to
view and modify sectors on every harddisk or floppy drive in your system.
This program is ShareWare. You can make as many copies as you want and give
them away to other interested people. You have 25 free trial executions
to find out if this program fits your needs and works the way you want.
If you plan to use HPFSTool regulary you must register it (More details
about registration at the end of this text).
Installation
------------
The usage is quite simple. Copy all files to a directory on your harddisk
and then start HPFSTOOL.EXE. In the startup dialog you can see the remaining
trials in the entryfield 'Serial Number'. Press the buttons 'English' or
'Deutsch" to select the language for the program. When the main window
shows up select 'Undelete' or 'Edit'.
Undelete
--------
First select the drive using the 'Drive' spinbutton. Then press 'Scan' to scan
that drive for deleted files. If you know the name of the file you may enter
the first 15 characters in the entryfield 'File'( no wildcards like * or ? ).
If you leave this field blank then all deleted files are displayed.
While scanning the 'Scan' button changes to 'Stop' so that you can abort
scanning at any time you want. Because of the HPFS-structure it is necessary to
scan _all_ free sectors on the drive to find deleted files so scanning can take
a few minutes depending on the size of free space on the drive.
Select the file you want to recover from the list and press 'Undelete' or
doubleclick on the file to recover it. When selecting a new path for the
recovered file keep in mind that you should not store the file to the same drive
if you plan to recover more then one file. This is because the first recovered
file may overwrite some parts of the other deleted files that you also want
to recover.
If you get the message "Unable to lock drive X:" that means that the program
can't get exclusive access to that drive. This occures if at least one other
file is currently open on this drive. Therefore it is impossible to lock
the boot-drive and the drive with the SWAPPER.DAT on. You may proceed with
Undelete but make sure that no other process acesses this drive and no
paging occures while Undelete is in progress.
The 'Wipe' button removes all information about the deleted file so that
it can never be recoverd. This may be used for security reasons or to
clean up some *.###, *.$$$ files.
Deleted files are only listed if they could be completely recovered, that means
no partial recovering is possible. Undelete also tries to find the path where
the deleted file was located before deleting. If the path could not be found
only '???' is shown.
HPFSTool disables "Lazy writes" on HPFS drives because it accesses the disk
directly without notifying the file system driver and it's cache management !
To turn on Lazy writes after using HPFSTool enter 'DETACH CACHE /LAZY:ON' on
the OS/2 command prompt. (Note the DETACH statement !)
Before using the Undelete function check the following things:
- Stop any other program that may access the drive and avoid paging
if the SWAPPER.DAT is on that drive.
- If necessary call CHKDSK to check the drive for errors.
- After deleting a file that you want to recover avoid writing to the
drive wich the deleted file was on.
Sector editor
-------------
Select a drive using the 'Drive' spinbutton and select a sector via the
'Sector' spinbutton. If you want to edit a floppy disk you have to insert
the disk before you run the sector editor. You can change the display format
of the sector to 'Data'(Hex-mode), 'Boot'(Boot-sector mode) or 'FNode' (file
information block which contains information about a file on HPFS drives) by
using the 'Format' spinbutton.
Press the 'Copy' button to copy the contents of the display to the clipboard.
If you want to change the contents of the sector activate the edit field via
TAB-key or mouse and enter the new values. Pressing the 'Clear' button fills
the whole sector with 0. To write the modified sector back to disk press
the 'Write' button.
Registration
------------
If you find this program fine and if you want to support the further
development please register HPFSTool.
Please notice the following:
1. The registration costs only US$ 20 or DM 34.
2. Fill in the following registration form and mail it including the
registration fee to the given address.
3. You will receive a serial number which enables unlimited usage of HPFSTool.
4. I'll send your serial number by EMail (Internet,Compu$erve), Fax or Mail.
If you have problems or questions feel free to contact me either by Mail or
by EMail (peter@logware.de or Peter Kraufmann 2:2410/203@Fidonet)
The latest version of HPFSTool is always available first on
FTP: hobbes.nmsu.edu
BBS: InfoServer Berlin, +49-30-26001351
=============================== CUT HERE =======================================
HPFSTool Version 1.5 Registration
--------------------------------------------------------------------------------
To: Peter Kraufmann
John-Schehr-Strasse 45
10407 Berlin
Germany
--------------------------------------------------------------------------------
Company :
Name :
Address :
Country :
EMail :
Fax :
Payment : [ ] Cash (DM/US$) [ ] EuroCheque (DM) [ ] Postal money order (DM)
Please use only these payments, no credit cards or cheques, sorry !
Date / Signature :
--------------------------------------------------------------------------------
This version of HPFSTool was obtained from
[ ] BBS / FTP :
[ ] shareware vendor :
[ ] other source :
Comments :
=============================== CUT HERE =======================================
Remarks
-------
This program has been extensively tested but there is no warranty for the
case of any damages or other trouble that the usage of the program may cause.
You are always using the program at your own risk !
Trademarks
----------
OS/2, HPFS, HPFS386 are (R) by IBM Corp.