Open Source software is software with source code that anyone can inspect, modify or enhance. Freeware products can be used free of charge for both personal and professional (commercial use). Mouse or compatible pointing device (required)įreeware programs can be downloaded used free of charge and without any time limitations.To debug programs on Windows NT or Windows 2000, you may have to have administrative rights.VGA display (SVGA with screen resolution at least 800圆00 is strongly recommended).64 MB physical memory (128 MB recommended).

Microsoft Windows 95, Windows 98, Windows NT 4.0 (Service Pack 2 or higher), Windows 2000 or higher operational system.

Assembles commands into the shortest binary form.

Examines and modifies memory, sets breakpoints and pauses program on-the-fly.

Finds references to constant or address range.

Searches for imprecise commands and masked binary sequences.

Traces program execution, logs arguments of known functions.

Sets conditional, logging, memory and hardware breakpoints.

Gives context-sensitive help on API functions from the external help file.

Decodes call to more than 1900 standard API and 400 C functions.

Recognizes complex code constructs, like a call to jump to procedure.

Dynamically recognizes ASCII and UNICODE strings - also in Delphi format!.

MMX, 3DNow! and SSE data types and instructions, including Athlon extensions.

The configurable disassembler supports both MASM and IDEAL formats.

No installation - no trash in registry or system directories.

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.

Allows for user-defined labels, comments and function descriptions.

Object file scanning - locates routines from object files and libraries.

Code analysis - traces registers, recognizes procedures, loops, API calls, switches, tables, constants, and strings.

An intuitive user interface, no cryptical commands.

Olly Dbg is a shareware, but you can download and use it for free. Emphasis on binary code analysis makes it particularly useful in cases where the source is unavailable. OllyDbg is a shareware, but you can download and use it for free.OllyDbg is a 32-bit assembler level analyzing debugger software for Microsoft® Windows®. 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®. OllyDbg for Windows 10 - Full description

Odbg