These are more specialized tools. H2DRes focuses on recovering resources (icons, strings, forms), while H2Viewer focuses on class hierarchies. Neither is a full decompiler, but combined with IDR, they replicate DeDe’s functionality.
Understanding DeDe: The Legendary Delphi Decompiler Reverse engineering compiled code requires tools that can reconstruct meaning from binary data. For software built with Embarcadero Delphi (formerly Borland Delphi), standard decompilers often struggle due to Delphi's unique object-oriented structure, custom memory management, and specialized event-driven architecture.
Utilizing dedicated community-developed scripts and plugins to automate Delphi RTTI parsing directly inside modern, industry-standard reversing suites. Conclusion
supports newer Delphi versions (up to XE4) and offers a more interactive analysis environment. MiTeC DFM Editor: delphi decompiler dede
Advanced users often combine DeDe with OllyDbg, using DeDe to locate address offsets and OllyDbg for dynamic patching.
: Some community reviews mention that DeDe can be prone to crashing on certain packed or complex binaries. Where to Learn More
Before diving into the specifics of DeDe, it is important to understand what Delphi decompilation actually entails. Unlike .NET applications, which can often be reconstructed into nearly original source code, Delphi executables present a different reality. Applications compiled with Delphi cannot be fully restored to their original Pascal source code. Instead, decompilation tools extract DFM (Delphi Form Module) files, unit structures with function and class names, and generate commented assembly code along with supplementary information such as string tables and cross-references. While the generated code cannot be recompiled directly, it can save countless hours of manual reverse engineering, particularly by recovering complex form layouts that would otherwise require extensive effort. These are more specialized tools
DeDe stands out because it targets the specific structural design patterns of Borland Delphi and C++Builder binaries. 1. Form and DFMCreator Reconstruction
Right-click a form and select "Decompile Form" or "Save as DFM" . DeDe will output a human-readable text file. Example output:
The enhanced version also improved handling of non-standard programs, adding support for analyzing Forms and Procedures that deviated from typical Delphi compilation patterns. It fixed numerous bugs present in the original DeDe, including issues with saving DFM files as RES, drag-and-drop handling, and registry entries for "Open With DEDE" functionality. Additionally, DarkNess0ut removed the nag screen that plagued earlier versions and restored several disabled features, making the tool significantly more user-friendly for extended analysis sessions. Conclusion supports newer Delphi versions (up to XE4)
The DeDe Delphi decompiler remains a foundational tool in software archaeology and reverse engineering history. By transforming abstract machine code into structured forms and clearly labeled event handlers, it demystified compiled Delphi binaries for a generation of security researchers. While modern tools like IDR have surpassed it for newer software versions, understanding DeDe's methodology remains essential for anyone diving into the world of native binary analysis.
is a historically important, specialized tool for recovering Delphi form layouts and symbol information from older (v2–v7) 32-bit Delphi executables. It is not a full decompiler (does not produce Pascal code for logic), and it is obsolete for modern Delphi versions or packed binaries. However, for legacy software maintenance, digital forensics, or malware analysis involving classic Delphi binaries, DeDe may still be useful – though newer alternatives like IDR or Ghidra are generally preferable.