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HISTORY.DOC
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1994-01-27
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Development history, v1.0 to v1.11
──────────────────────────────────
AMOS started as an idea. An idea of being able to salvage data that would
otherwise be lost. I thought this was a great idea, and contacted IBM for
some technical doc on HPFS. "The doc for HPFS is classified", I was told.
I was unable to breach this barrier (Does it have something to do with
Microsoft's rights on HPFS?), so AMOS is all my own work.
Without documentation, it is pretty hard to write a program for accessing and
even writing HPFS-drives. And very easy indeed to trash drives, making them
unreadable, OS/2 unbootable, and the like. Which is why AMOS has been such
a long time underway, and which is also why nobody but my beta-testers have
seen AMOS until this final v1.0 release.
I am pretty sure that no disastrous bugs remain, but nevertheless: Try AMOS
on your own machine, on a partition that contains data of which you have a
backup. Then, when you've seen that it works, use it on your 700MB data-
partition - but bear in mind that I have no responsibility whatsoever for
your loss of data. If anything goes wrong, please fill out the problem
sheet at the end of this text and send it to me - and I'll try to fix the
problem as soon as possible...
To make AMOS, hundreds of hours of work have been used. Most of the time has
been used in a sector-editor, trying to figure out the cryptic ways of HPFS.
Enjoy!
Release history
───────────────
v1.11 Released 27. jan. 1994 (Panic-release)
- Fixed MAJOR bug in the copy-to-HPFS-routine. Due to some minor
changes, all HPFS write acticity in registered versions hit sector 0!
Fortunately, no registrations had been sent out.
- Fixed bug: AMOS didn't recognize any floppy drives A: or B:
v1.10 Released 25. jan. 1994
+ Better support for Dir /f; now counts dir-extents as well as
file-extents. Reduced memory consumption drastically.
+ The delay for unregistered versions is now just 10 seconds.
+ /P now works with TYPE.
+ Added a new command, EA. Using this, you can get a very basic idea
of the EA's associated with files.
+ It is now possible to abort COPY and TYPE of many files with ESC.
+ Enhanced the function of TREE, both in respect to memory
use and functionality. Now includes number of files per
directory, as well as a total bytes/files summary at the end.
+ Enhanced the internal editor a bit. Needs more work, though.
+ AMOS no longer allows reference to non-existing drives. In
earlier versions, trying to access these caused AMOS to crash.
+ AMOS now retains the current directory after exiting.
+ DIR /F now works on FAT drives. Thus, you can now examine the
fragmentation of all drives using AMOS.
+ Enhanced AMOS' ability to diagnose fatal IFS errors, and still
access drives containing valid information.
- Fixed some errors in the handling of FAT-drives. AMOS now uses
FCB instead of handle methods to access FAT drives, since cluster
information is supplied when using FCB's.
- Fixed error in "existing file detection" when doing a COPY to FAT.
- Fixed the DOSKEY function F8 to work properly. F8 now searches the
command history for commands matching up to the position before the
cursor location.
- Fixed RD to work with the directory that was current when AMOS
was started.
- Fixed an error occurring when trying to RD *.
! Registration price has risen to DKR 400 ($ 62) for commercial users,
and DKR 200 ($31) for non-commercial users.
v1.01 Released 2. dec. 1993.
Fixes minor bugs, mostly of cosmetical nature.
Added support for FREEspace mapping of FAT-drives.
This is an intermediate release, released instead of v1.1. v1.1
will include a FAT to HPFS file format converter, but I am having
problems with making it work in every case, so this is all you
get for now :-)
v1.0 Released 11. nov. 1993. First public release.
Features both HPFS read and write, but has no error correcting
facilities.
All basic FAT and HPFS manipulation routines are present.
Only registered versions have access to HPFS write routines.