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DISK EDITORS
For *experienced* users only. Normally run from a bootdisk (unless your editing a floppy). Also see: Hex Editors section; DFSEE disk analyzer (w/ sector edit capability); for a completely safe disk sector viewer that can write to a file, see LSD.
10-22-00: Need to add: DISKED (DOS real and protected mode versions, can also read damaged and non-DOS formatted floppies under DOS [not for FAT32/NTFS]; a newer Win32 version in development).
PTS DiskEditor- Disk editor and viewer (FAT16/32 HD's).
unrated [added 1999-10-08]
Untested. "PTS DiskEditor can work....without any operating system" Notes: Apparently allows viewing and editing of fixed disks only. While not especially option-rich and lacking user documentation, PTS DiskEditor uniquely handles both FAT 16 and 32. Includes Block copy and paste, undo, search for HEX/ASCII functions. Author: PhysTechSoft, Russia (1998).
Note 2001-06-10: The rights to this disk editor were apparently acquired by another company in 2001 (a commercial variant (demo) is now available here). The original PTS disk editor (1998) was licensed with a free distribution clause and is linked to below.
download de.zip (english, 161K)
DiskEditor- Disk editor and viewer (FAT12/16).
unrated [added 1998-06-23]
Untested. See a review of DE at ZDNET.
From the docs: "DiskEditor is a full function disk editor that supports graphics or non-graphics printing of all data displayed onto the screen, a DOS shell, Directory displaying, viewing, and editing, help, and mouse support." Also functions as an analysis tool: Locates stray / cross-linked clusters; can locate bad, reserved, invalid clusters; can compare both copies of FAT for errors; can test read all disk sectors. 50K EXE and requires 27K help file.
v3.0 System Requirements: Processor: 8088 or higher, video: monochrome or better, DOS version : 2.xx through 7.xx, Bytes@Sector: 4096 maximum, Sectors@Cluster: 128 maximum, FAT type: 12 or 16-bit only.
Author: Jim Webster (1998); Suggested by Lars-Erik Sandberg.
Get DE_30.ZIP (v3.0; 71K) from Home Page.
Zap-It- Hex and disk editor (FAT16).
unrated [updated 1998-11-13]
Untested. Zap-It can function as either a file hex editor or a disk editor and has the ability to insert or delete bytes in hex mode. Cardware. Author: Marten Egmond, Elmer Productions (1998).
Features from the docs:
- Commands accessible from pulldown menus or keys.
- Drive/directory/file listing for easy navigation and file loading.
- Last files edited history list.
- Binary/Decimal/Hexadecimal conversion and calculation.
- Hex and Ascii editing windows.
- Non specific text search.
- Disk caching.
- Easy display configuration.
- Filtering.
- Cut/Copy/Paste/Insert functions.
- ASCII viewer.
- File Compare feature.
New in v5.12 (11-98): Save As function now works.
download zapit512.zip (70K)
OTHER DISK UTILITIES
STBFP- Save and/ or restore Boot Record, Partition Table, and FAT.
STBFP(stb.com, stf.com, stp.com): These three small programs save copies of critical hard disk data, without which a hard disk can not function - the boot record, partition table and File Allocation Table. The same programs allow you to compare the current copy of these items with the backup copy, and restore the items from backup, if necessary. (FAT16 only?)
Free for personal use. Author: Jad Saliba (1997).
download stbfp20.zip (45K)
CD Recording Utilities (Golden Hawk)
unrated [added 1998-12-08 updated 2001-07-09]
"...A set of useful CD-R applications for MSDOS. They support every major CDROM recorder..." The following freeware programs are included in the larger Golden Hawk commercial DOS distribution package:
Authors: Golden Hawk Technology (2001). Suggested by Dev Teelucksingh.
07-09-01: v3.8E (07-01) available.
16 and 32-bit versions available (16-bit version does not support IDE devices):
download dao16v38.zip (16-bit, 1.3MB)
or
download dao32v38.zip (32-bit, 940K)
CD-BENCH- Benchmark program for CD-ROM drives.
unrated [added 1999-04-17]
Evaluate the performance of your CD-ROM with CD-BENCH. Good docs, and includes options to defeat caching effects. From the docs: Many common benchmarks report a...wrong result because they suppose that the reading speed is constant, so they read only at the beginning of the disc. CD-BENCH....is the only benchmark that reads the disc in six different points and displays six results, so you can see if and how the speed varies." Runs only in plain DOS mode (not Win9x). Available options:
-S reports the size of the disc without performing test. -D change the delay preceding reading. default=500 (millisec) -B change the quantity of data read. default=50 (blocks) -I start test immediately (no initial spin-up). -Q decrease readings from 6 to 3
My notes: tested successfully on a generic internal 32X CD-ROM but failed to access a parallel port external drive.
Author: Pino Navato, Italy (1999). Home Page.download pn_cdb21.zip (14K)
XMSDSK (aka XMSDISK) & EMSDSK- RAM disk (ramdisk) can be created, resized, destroyed from c-line.
unrated [updated 1998-10-25]
A RAM disk (ramdisk) is much faster than a hard disk but it's memory only exists while your computer is on. I rarely use a RAM disk- and have little knowledge of the comparative benefits of available shareware and freeware programs. The FU_RD RAM disk suite caught my eye primarily because the RAM disk can be created, resized, or destroyed from the command line. In short, you don't have to reboot your machine to adjust the size of the RAM disk or to reclaim it's memory for other uses. Note: Resizing will destroy any files present in the RAM disk. Author: Franck Uberto. France. (1998)
The FU_RD suite includes XMSDSK.EXE & EMSDSK.EXE for use with XMS or EMS memory, respectively. A third program (EMSDSK86) is included for 8088 machines.
Features:
New in v1.9i (8-98): Parameter "/c" added, to set a cluster size.
download furd19_i.zip (75K)
NTFSDOS- NTFS File System Driver for DOS/Windows.
unrated [added 1998-08-16 updated 2001-09-23]
"NTFSDOS.EXE is a read-only network file system driver for DOS/Windows that is able to recognize and mount NTFS drives for transparent access. It makes NTFS drives appear indistinguishable from standard FAT drives, providing the ability to navigate, view and execute programs on them from DOS or from Windows, including from the Windows 3.1 File Manager and Windows 95 Explorer."- Systems Internals web site. NTFS driver packages are also available for Win9x (including commercial read/write versions).
Authors: Mark Russinovich and Bryce Cogswell, (2001)
2001-09-23: v3.02R+ (09-01) available. "NTFSDOS gets a minor fix that enables it to mount Windows XP-formatted NTFS volumes. "
download ntfs30r.zip (39K)
Also see: NTCP- NTFS driver for MSDOS, read/write mode.
SleepHDD- Power-saving hard disk spindown (sleep) util.
unrated [added 1999-10-18]
From a user: "SleepHDD lets you turn the motor of each hard disk on/off immediately, or after a user specified wait (e.g., 10 minutes)...SleepHDD is distinguished from similar programs by offering several options including a program to test your disk(s) for compatibility....The usual use for these programs is power saving....Tools such as SleepHDD can be annoying since they turn off the drive after n minutes of no disk activity , not n minutes of no keyboarding." "SleepHDD has been found to work correctly with about 80% of drives it was tested with." Author: BPC Productions, Russia. (1995); Suggested by H. Schwartz.
Usage: SLEEPHDD.COM Drive0 [Drive1] +--------- commands for the two hard drives Supported commands HELP, ? Display this help screen 1..18 Specify sleep time (in minutes) for the Auto Power Down mode 0 Turn off the Auto Power Down mode INFO Display the drive's model, parameters and current power state POWEROFF Turn off the power (Standby Mode) POWERON Turn on the power (Idle Mode) OFF Turn off the drive completely (Sleep Mode) RESET Recalibrate the drive CACHEOFF Turn off the on-drive cache CACHEON Turn on the on-drive cache SELFTEST Perform the self-test COMPTEST Perform the compatibility test, TRY IT!
download bpc-sh55.zip (10K)
DISK WIPERS
Also see: File Wipers and WIPEUTIL (zapempty.com)
1. WIPE- Wipes fixed disks -up to 8GB.
unrated [added 2001-09-23]
This small (3K) disk wiper will wipe entire disks (not just unused space). Useful if you are disposing of hard disks with sensitive data. From a user: "... nice because it does not CARE about the file system - it starts from the first sector and starts writing zeros. Granted it will only do HD's up to 8 gig because of the new Bios thing [no int13h extensions], and not everybody wants to totally zarch their partition unless they are getting rid of hard drives..."
Syntax: WIPE <FDISK#> WHERE <FDISK#>="0" TO 7 FOR FIXED DISK DRIVE 0 OR FIXED DISK DRIVE 7. OR? ="Display" HELP.
Author: ? (1996). Suggested by Daniel Schmidt.
Find wipe10c.zip at Uwe Sieber's DOS and Windows Utilities Page.
2. WIPEM- Disk shredder overwrites unused hard disk space, Win swap files.
unrated
From the docs... "WIPEM is an assembler DOS program that protects the private data on your hard drives...Although there are several other programs...which perform the wiping of the unused space, all these leave the directory entries untouched and the files final cluster still contains data....Directories scanning, finding files FAT chains, unused cluster scanning are all done directly reading the sectors on disk. WIPEM uses different patterns when overwriting data on disks. If used repeatedly even advanced data recovery methods (like scanning the disk plates) won't give results." This baby will wipe your Windows swap file too- a smart idea.
Limitations: not usable on FAT12 (floppies) or FAT32 disks .
Author: Emil Laurentiu. Cardware.
Usage: WIPEM drive: [options] /w - wipe (writes on disk - otherwise only simulates) /e - only the erased space (free clusters) /d - only directory entries /f - only the files end (final clusters) /p - hide .pgp files (mark delete) /r - restore .pgp files (no other operation is performed)
download wipeem01.zip (11K)
3. WipeFree- Wipe over free disk space (DOS and Win32 versions).
unrated [added 1999-07-10]
From the docs: "WipeFree for DOS creates files and writes to them until the drive is full. Each file can be up to 2GB and up to 1000 files can be created... WipeFree32 can handle this by creating a single file. WipeFree32 can overwrite the free areas twice. The parameter for this is /2." Author: Uwe Sieber, Germany (1999). Home Page.
download wipefree.zip (44K)
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