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-
- ** Programmer's Technical Reference for MSDOS and the IBM PC **
- ─────────────────────────┤ Shareware User Version ├───────────────────────────
- Copyright (c) 1987, 1990 Dave Williams
- Registered, United States Copyright Office
-
-
- I N T R O D U C T I O N
-
-
- This book is a technical reference. It is NOT a tutorial. Hopefully, this
- book is what you'll reach for when you want find out what Peter Norton or the
- "official" references glossed over.
-
- This manual is intended to replace the various (expensive) references needed
- to program for the DOS environment, that stack of magazines threatening to take
- over your work area, and those odd tables and charts you can never find when
- you need them.
-
- The various Microsoft and IBM publications and references don't always have
- the same information. This has caused some consternation about the
- "undocumented" features to be found in DOS. In general, if a call doesn't
- appear in the IBM DOS Technical Reference it is considered "undocumented"
- although it may be in common use.
-
- Microsoft's offical policy toward DOS has been to put the burden of
- documenting and supporting their product to their vendors. Microsoft will not
- answer any questions concerning DOS directly since they don't officially
- support it. This leaves what information IBM and other OEMs (DEC, Zenith, et
- al) have chosen to publish, and the information obtained from programmers
- who've poked around inside it.
-
- Now that Microsoft is selling MSDOS 3.3 and 4.0 over the counter they seem to
- be dragging their feet over whether they will have to support the generic
- version since it doesn't have an OEM name on it anymore. In view of their push
- to OS/2 (OS/2! Just Say No!) further support of DOS seems unlikely.
-
- The information here is valid for DOS 2.x and 3.x. Where there are differences
- between the two versions there are notes in the text. No great effort was
- expended on DOS 1.x or networking features. This proved to be a mistake (at
- least on the networking stuff) since networks are becoming more prevalent.
-
- As I write this there is still considerable furor over incompatibilities with
- DOS 4.0. Since a Technical Reference for 4.0 isn't available yet, I don't have
- a whole lot of info on it.
-
- When I started writing this book, it was originally for my own personal use.
- Then I began expanding it with the idea of getting it published, since at that
- time there was *nothing* in print like it. If I had managed to send it off to
- the publishers early enough, I would have had it made. As it was I lost six
- months having a nice steel rod put in my leg after being run over by a car,
- and half a dozen similar books were published by then, and nobody was
- interested in mine. Six months is a long time in the PC world.
-
- That's why I'm uploading this file as "user-supported." It gives me a chance
- to recoup a few bucks for the time I've been working on this thing, and it
- gives some advantages that a printed book can't - first, you can load it on
- your hard disk and use Vern Buerg's LIST or SideKick to scan through text. You
- can grab a piece of something and paste it into a document, etc. If you help
- support the PC Programmer's Reference you will always have the latest version
- available; you can't "upgrade" books.
-
- A project this size takes a LOT of time and effort. I've tried to verify as
- much of the information I've received as I could, but there's just too much for
- absolute certainty.
-
- If you find any typos, incorrect information, or want to see something else,
- let me know. If you have any more detailed information on something, PLEASE let
- me know!
-
- Dave Williams
-
-
-
- D I S C L A I M E R
-
- <sigh>
-
- As is common these days, I have to make a "Notice of Disclaimer". I take no
- responsibility for anything, and if anything you do with this book ruins you
- for life or makes your dog bite you, or anything else, that's just tough.
-
- I hope you find much use for this reference. It was a trip to write, too.
-
- Dave Williams
-
- (C) Copyright 1987, 1988, 1989, 1990
-
-
-
-
- ______________________________________________________________________________
-
- Copyrights and trademarks:
-
- (Allied Telephone and Telegraph)
- UNIX, AT&T
-
- (AST Corporation)
- AST, RAMpage!
-
- (Atari Computer)
- Atari, ST, TOS
-
- (Borland)
- Borland, Turbo C, Turbo Pascal, Turbo Lightning, Turbo Assembler
-
- (Commodore Business Machines)
- Amiga 2000
-
- (Compaq Computer Corp.)
- Compaq, Deskpro
-
- (Cordata Computer)
- Corona, Cordata
-
- (Digital Equipment Company)
- DEC, Rainbow, DECMate
-
- (Fox Research, Inc.)
- 10-Net
-
- (Graphic Software Systems)
- GSS, DGIS
-
- (Hayes)
- Smartmodem
-
- (IBM Corp.)
- IBM, PC, PCjr, PC/XT, PC/AT, XT/286, PS/2, TopView, DOS, PC-DOS, Micro Channel
- 3270 PC, RT PC, Token Ring
-
- (Intel Corp.)
- Intel, iAPX286, iAPX386, LIM EMS, Communicating Applications Standard (CAS)
-
- (Logitech, Inc)
- Logitech, Logimouse
-
- (Microsoft Corp.)
- Microsoft, MS, MS DOS, OS/2, Xenix, Windows, Windows/286, Windows/386,
- Microsoft Networks, LIM EMS, XMA
-
- (Mouse Systems Corp.)
- Mouse Systems
-
- (Novell Corp.)
- Novell, NetWare
-
- (Quarterdeck Office Systems)
- DesQview, QEMM
-
- (SEAware, Inc)
- ARC
-
- (Softlogic)
- DoubleDOS
-
- (Sunny Hill Software)
- TaskView
-
- (Tandy Corp.)
- Tandy
-
- (Texas Instruments)
- TI, TI Professional, Business Professional, TIGA (TI Graphics Interface)
-
- (Phar Lap)
- VCPI, Virtual Control Program Interface
-
- (Zenith Radio Corporation)
- Zenith, Z-100, Z-248
-
- (ZSoft Corporation)
- ShowPartner, Paintbrush
-
- "LIM 4.0" and "Expanded Memory Specification" are copyright Lotus Development
- Corp, Intel Corp, and Microsoft Corp.
-
- "EEMS", "AQA 3.1" and "Enhanced Expanded Memory Specification" are copyright
- by Ashton-Tate, Quadram, and AST
-
- Various other names are trademarks of their respective companies
-
-