What AI says about OllyDbg

OllyDbg is a 32-bit Windows debugger for assembler-level analysis of binary code, useful when source is unavailable, distributed as shareware and free to download. It offers an intuitive interface, code analysis that traces registers, recognizes procedures, loops, API calls, loads and debugs DLLs, supports object-file scanning, user-defined labels, patching between sessions, a plug-in architecture, an attach-to-running-program capability, and a configurable disassembler with MASM/IDEAL support and Unicode handling. The project development is largely frozen, with an incomplete 64-bit version available, and the site provides downloads, tutorials, and historical information.