Free Disassemblers and Decompilers
Win32 Program Disassembler
Works in the console mode. Source is also available.
PEDasm
PEDasm is a Win32 command line tool which disassembles binary files targeted for win32 X86 platforms. It outputs an asm source file.
RECReverse Engineering Compiler
REC is a portable reverse engineering compiler, or decompiler. It reads an executable file, and attempts to produce a C-like representation of the code and data used to build the executable file.
Borg Disassembler
A disassembler for Win32 PE files
dasm68.exe
A cross dissassembler that dissassembles 680xx binary code using a PC
Win32Program Disassembler
Win32 disassembler for exes and dlls (i.e. PE)
PEDasm
Symbolic disassembler for Win32.
Debuggy
Win32 disassembler and resource extractor.