OllyDbg Alternatives, Similar

OllyDbg is a 32-bit assembler level analysing debugger. Emphasis on binary code analysis makes it particularly useful in cases where source is unavailable. * Debugs multithread applications
* Attaches to running programs
* Configurable disassembler, supports both MASM and IDEAL formats
* MMX, 3DNow! and SSE data types and instructions, including Athlon extensions
* Full UNICODE support
* Dynamically recognizes ASCII and UNICODE strings – also in Delphi More Info »and much, much more!