Binary Editors for DOS: With disassemblers EDCOM by Doug Cox and HexIt by Mikael Klasson.
BORG: Windows 32-bit PE file disassembler by Cronos.
Define: New shareware assembler/disassembler with major differences from those available, by Alan Baylis. Download holds assembled and QBASIC versions.
GoBug: A Win32 symbolic debugger and disassembler providing output to the screen, file or printer.
Hiew: File viewer and disassembler for NE,LE,LX,PE formats and Netware Loadable Modules NLM,DSK,LAN, by Eugene Suslikov. [Shareware]
HT: Is a binary file viewing and editing tool including disassembler for DOS and Windows 16/32 formats (MZ, PE, LE) by Stefan Weyergraf and Sebastian Biallas. [Open source, GPL]
Labit Disassembler: A COM component allows to disassemble binary code of x86 (including last Intel and AMD 32-bits instructions) 32 bits applications, from memory or from executable files.
Nocash HACK Debugger: PC disassembler/debugger by Martin Korth. [Freeware]
Pass32 Assembler: For 32 bit protected mode/Windows applications, includes integrated disassembler, by Dieter R. Pawelczak. [Freeware]
PE Explorer Disassembler: A Windows 32-bit PE file disassembler and file editor, with a strong emphasis on peeking inside Delphi applications and packages.
PEDasm: Is a Win32 command line disassembler targeted for win32 X86 platforms, by WITCZAK Nicolas Alexis. [Open source, GPL]
Phoenix Disassembler: A Win32 PE File Intel 80x86 Disassembler, with API call conversion, and Navigation control. [Freeware]
Programmers Heaven - Disassemblers: Dasm110, Desa101, Disasm32, MakeSrc2, Spy_Trak, Trace41.
simtelnet/msdos/disasm/: DOS based disassemblers.
VXDasm: A Visual disassembler for Windows95's VXDs devices drivers, by Jean-Louis Seigne. [Shareware]
W32Dasm: A disassembler and debugger for 16/32 bit windows applications, by URSoft. [Shareware]
Windows CodeBack disassembler: Windows 3.1 Disassembler by Leslie Pusztai Jr. [Shareware]
Windows Disassembler: Windows 95/NT disassembler, by Sang Cho. Also Pentium II instruction table can be found at site. [Open source]
Xope Systems: Offers Lantern (an advanced interactive decompiling environment in a form of a plug-in for the Interactive Disassembler Pro program) and reverse engineering services for x86 and compatible machine code.