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 Part of the File Debugger download hub (+1 other) |
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User Rating:
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Very Good (4.3/5)
84 user(s) |
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OllyDbg description
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A 32-bit assembler level analysing debugger for Microsoft Windows.
The OllyDbg application was developed to be a 32-bit assembler level analysing debugger for Microsoft Windows. Emphasis on binary code analysis makes it particularly useful in cases where source is unavailable.
NOTE:
This software is a shareware. To use this program on a permanent basis or for commercial purposes, you should register it by sending filled registration form to Ollydbg@t-online.de. The registration is free of charge and assumes no financial or other obligations from either side - just be fair and let me know that you like this software. Even your personal data in the registration form is optional (use your nickname or pseudonym if you want). Here are some key features of "OllyDbg":
· Intuitive user interface, no cryptical commands
· Code analysis - traces registers, recognizes procedures, loops, API calls, switches, tables, constants and strings
· Directly loads and debugs DLLs
· Object file scanning - locates routines from object files and libraries
· Allows for user-defined labels, comments and function descriptions
· Understands debugging information in Borland® format
· Saves patches between sessions, writes them back to executable file and updates fixups
· Open architecture - many third-party plugins are available
· No installation - no trash in registry or system directories
· 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 format!
· Recognizes complex code constructs, like call to jump to procedure
· Decodes calls to more than 1900 standard API and 400 C functions
· Gives context-sensitive help on API functions from external help file
· Sets conditional, logging, memory and hardware breakpoints
· Traces program execution, logs arguments of known functions
· Shows fixups
· Dynamically traces stack frames
· Searches for imprecise commands and masked binary sequences
· Searches whole allocated memory
· Finds references to constant or address range
· Examines and modifies memory, sets breakpoints and pauses program on-the-fly
· Assembles commands into the shortest binary form
· Starts from the floppy disk
Requirements:
· 586/100 processor (586/300+ recommended)
· Microsoft Windows 95, Windows 98, Windows NT 4.0 (Service Pack 2 or higher), Windows 2000 or higher operational system
· 64 MB physical memory (128 MB recommended)
· At least 2 MB free disk space
· VGA display (SVGA with screen resolution at least 800x600 is strongly recommended)
· Mouse or compatible pointing device (required)
What's New in This Release: [ read full changelog ]
· New plugin interface is similar to the old (v1.10) but is not backwards compatible. It includes more than 350 API functions, 60 or so variables and many enumerations and structures that all need to be documented. This will take a while, therefore I decided to make a preliminary release. It includes plugin header file (plugin.h) and commented bookmarks source code (bookmark.c). Writing your own plugins without the documentation is a pure masochism, but at least you will be able to analyse the structure of the interface and send me your comments, wishes and suggestions.
· Patch manager, similar to 1.10
· Shortcut editor, supports weird things like Ctrl+Win+$ etc. Now you can customize and share your shortcuts. I haven't tested it on Win7, please report any found bugs and incompatibilities!
· Instant .udd file loading. In the previous versions I've postponed analysis, respectivcely reading of the .udd file till the moment when all external links are resolved. But sometimes it took plenty ...
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