Here is a list of programs and documentation that I've collected throughout the years and found useful or thought it was worth saving somewhere and having it handy.

Everything that is published here has been downloaded from different sources, but specially archive.org. Yes. Even the MS-DOS 6.0 source leak!

Documentation

Name	Platform	Link	Description
QuickBasic 4 Disassm docs	msdos/win9x	QBasic4 Notes	Some important
Intel Manual Volume 2	x86/x64	Intel Manual Volume 2	Intel® 64 and IA-32 Architectures Software Developer’s Manual Volume 2 (2A, 2B, 2C & 2D): Instruction Set Reference, A-Z
OPL/FM Programming	sb16	FM Docs	Programming the AdLib/Sound Blaster FM Music Chips Version 2.1 (24 Feb 1992)
RBIL / Ralf Brown's Interrupt List	x86/msdos	Author Website Mark Perkel's RBIL HTML DJ Delorie's RBIL HTML	Original RBIL from the author and some conversions from the original format to HTML from Mark Perkel and DJ Delorie.
OSdata's System Components	mixed	System Components	Mixed documentation on several platforms and operating systems. I find specially useful for memory maps references.
The Giant Black Book of Computer Viruses	msdos	The Giant Black Book of Computer Viruses	Computer Viruses Explained.
Mastering Reverse Engineering	windows mixed	Mastering Reverse Engineering	Mastering Reverse Engineering Re-engineer your ethical hacking skills by Reginald Wong.
Undocumented DOS	msdos	Undocumented DOS	A programmer’s guide to reserved ms-dos functions and data structures

Software

Name	Platform	Link	Description
QuickBasic 4.0 Compiler	msdos	qbc4.7z	QB4 Compiler, with files and floppy images
Truco Arbiser 5.4	msdos	Truco	Original argentinian Truco card game

Sourcecode

Name	Platform	Link	Description
MSDOS 6.0 Source	msdos	dos6.0-src	Leaked sourcecode from MS-DOS operating system version 6.0. Includes COW/BEEF code, QB45 runtime functions and a lot of neat goodies for the computer archeologyst