Borland Delphi 7 Decompiler May 2026

Since you have no original test suite, you must regression-test the recompiled app against the original binary by comparing outputs (file hashes, database writes, UI strings).

Borland Delphi 7, released in 2002, remains a popular legacy rapid application development (RAD) tool. It compiles Object Pascal source code into native x86 executables (EXEs) or dynamic link libraries (DLLs). Unlike .NET or Java bytecode, Delphi produces raw machine code, making decompilation significantly more complex. However, due to Delphi’s predictable metadata structures (forms, RTTI, string tables, and method prologues), targeted decompilation tools can recover a high-level approximation of the original source code. borland delphi 7 decompiler

This write-up explores the principles, tools, and limitations of decompiling Delphi 7 binaries. Since you have no original test suite, you

Delphi 7 relied heavily on global variables in the .pas unit. Decompilers preserve this. Refactor into classes and dependency injection. Borland Delphi 7, released in 2002, remains a

To understand the tools, one must understand why decompiling Delphi is different from decompiling other languages:

Use Ghidra or IDA Pro on specific methods to understand algorithm. Convert assembly back to Pascal manually.