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No installation - no trash in registry or system directoriesĬonfigurable disassembler, supports both MASM and IDEAL formats Open architecture - many third-party plugins are available Saves patches between sessions, writes them back to executable file and updates fixups Understands debugging information in Borland® format Object file scanning - locates routines from object files and librariesĪllows for user-defined labels, comments and function descriptions Intuitive user interface, no cryptical commandsĬode analysis - traces registers, recognizes procedures, loops, API calls, switches, tables, constants and strings OllyDbg is a shareware, but you can download and use it for free. Emphasis on binary code analysis makes it particularly useful in cases where source is unavailable. OllyDbg is a 32-bit assembler level analysing debugger for Microsoft® Windows®.
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