amindlost / wdosx

WDosX DOS extender v0.97

WDOSX DOS EXTENDER

This repository contains the source code and binaries of Wuschel's DOS eXtender v0.97 (Final), released in 2005-02, for the purpose of archival and preservation. As of 2022-01, the original host website is still functional.

No changes have been made aside from converting all file and directory names to lowercase, and the addition of this readme.

This software is Copyright © 1996-2005, Michael Tippach, with portions Copyright © 1999-2003, Joergen Ibsen.

Overview

WDosX is a free 32 bit DOS extender. Supported memory allocation schemes are:

• RAW (BIOS INT 0x15)
• XMS
• VCPI
• DPMI

While running under WDosX your program has access to a fair subset of DPMI 0.9 functions as well as an extended DOS INT 21 API. WDosX comes with some libraries, example programs and a full screen debugger. It features a true flat (zero based) memory model and support for DLLs as well as executable compression.

The following programming environments are supported by WDosX 0.97:

Assembler / Compiler	Supported target executable formats
NASM	Flat form binary, RDOFF, RDOFF 2 (NEW!)
TASM	32 bit "MZ", PE
MASM	32 bit "MZ", PE
MSVC++ 4/5 (NEW! MSVC 6)	Win32 - PE
Borland C++ 4.xx/5.xx	Win32 - PE
Borland C++ Builder	Win32 - PE
Borland Delphi 2, 3 and 4	Win32 - PE
Watcom C++	Watcom style LE
DJGPP v2	COFF

Different target executable formats are supported with different feature sets:

EXE format	DLL Support	True Flat	EXE compression
Plain Binary	NO	NO	NO
32 bit "MZ"	NO	NO	NO
PE	YES	YES[1]	YES
LE	NO	YES	YES
RDOFF	NO	YES	YES
COFF	NO	NO	YES
DOS32	NO	YES[2]	YES

[1] Floating segment also available but without support for DLLs and compression.

[2] True flat only if relocation info found. There are four different sub formats.

WDOSX License Agreement

THIS SOFTWARE IS PROVIDED "AS IS". IN NO EVENT SHALL I, THE AUTOR, BE LIABLE FOR ANY KIND OF LOSS OR DAMAGE ARISING OUT OF THE USE, ABUSE OR THE INABILITY TO USE THIS SOFTWRAE, NEITHER SHALL CO-AUTHORS AND CONTRIBUTORS. USE IT AT YOUR OWN RISK!

THIS SOFTWARE COMES WITHOUT ANY KIND OF WARRANTY, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

THIS SOFTWARE IS FREEWARE. NON- EXCLUSIVE PERMISSION TO USE THIS SOFTWARE IN ITS UNMODIFIED FORM FOR THE SOLE PURPOSE OF BUILDING PROTECTED MODE DOS APPLICATIONS HEREBY GRANTED.

YOU MAY FURTHER REDISTRIBUTE COPIES OF THIS SOFTWARE PROVIDED YOU INCLUDE ALL OF THE FILES THAT CAME WITH THE ORIGNAL PACKAGE. YOU ARE NOT ALLOWED TO REDISTRIBUTE MODIFIED COPIES OF THE SOFTWARE OR MERE PARTS OF IT.

YOU MAY FURTHER SELL APPLICATIONS USING A DOS EXTENDER STUB FROM THIS PACKAGE, BUT YOU ARE NOT ALLOWED TO SELL THIS SOFTWARE AS A STAND ALONE PRODUCT OR AS PART OF A SOFTWARE COMPILATION, EXCEPT FOR A SMALL, USUAL FEE COVERING THE REDISTRIBUTION ITSELF.

THE SOURCE CODE CONTAINED IN THIS PACKAGE MAY BE MODIFIED FOR YOUR OWN USE. HOWEVER, MODIFIED VERSIONS OF THE SOURCE CODE OR BINARIES COMPILED FROM MODIFIED VERSIONS OF THE SOURCE CODE MUST NOT BE REDISTRIBUTED WITHOUT PRIOR PERMISSION, WITH ONE EXCEPTION: YOU MAY REDISTRIBUTE BINARIES OBTAINED FROM MODIFIED VERSIONS OF THE SOURCE CODE AS PART OF AN APPLICATION THAT USES WDOSX AS ITS DOS EXTENDER IF MODIFICATIONS WERE NECESSARY TO FIX BUGS OR ADD MISSING FUNCTIONALITY FOR THE NEEDS OF YOUR PARTICULAR APPLICATION.

EITHER WAY, THE PREFERRED APPROACH IS THAT YOU CONTACT THE AUTHOR (ME) IF YOU FEEL THE CHANGES YOU MADE TO THE SOURCE CODE SHOULD BE INCORPORATED INTO FUTURE VERSIONS.

IF YOU DON'T AGREE WITH THIS TERMS OR IF YOUR JURISTDICTION DOES NOT ALLOW THE EXCLUSION OF WARRANTY AND LIABILITY AS STATED ABOVE YOU ARE NOT ALLOWED TO USE THIS SOFTWARE AT ALL.

THIS SOFTWARE IS COPYRIGHT (C)1996-2005 MICHAEL TIPPACH, ALL RIGHTS RESERVED.

ENGLISH: IF YOU MAKE ME WISH I NEVER HAD RELEASED IT, YOU SHOULD ROT IN HELL!

Author contact:

Michael Tippach Alpenrosenstrasse 25 86179 Augsburg Germany e-mail: [email protected]