In order to get the ’dfm’ from the executable file we need to understand what type of resources are stored inside a Win32 executable. Every time we change a form’s position, a button’s caption or assign an event procedure to a component, Delphi writes those modifications in a DFM file (not the code of the event procedure - this is stored in the pas/dcu file). Form files describe each component in your form, including the values of all persistent properties. When creating an exe, Delphi copies information in.

Dfm files contain the details (properties) of the objects contained in a form. If you would like to try to decompile a Delphi executable file, these are some of the things you should know: Delphi programs source files are usually stored in two file types: ASCII code files (.pas. After the compiler: Delphi Reverse Engineering The DCU file format is undocumented (proprietary format) and may change from version to version. This means that if you have someones, for example, component compiled source all you have to do is to reverse it and get the code.

For example unit1.dcu contains the code and data declared in the unit1.pas file. By default the compiled version of each unit is stored in a separate binary-format file with the same name as the unit file, but with the extension. When a Delphi project is compiled or run a compiled unit (.pas) file is created. Is true decompilation possible? No, of course not.įor the moment, Borland does not offer any product capable of decompiling an executable (.exe) file or the ’Delphi compiled unit’ (.dcu) back to the original source code (.pas). Hm, ’sources not available’, does this mean that we can decompile other people’s Delphi projects? Well, yes and no. Suppose you lose your Delphi project’s source and you only have the executable file: reverse engineering (decompilation) is useful if the original sources are not available.

Also, you can alter and redistribute Pythia freely within the guidelines of the original license. The license used means you can use it with the code of your commercial Delphi applications without spending any money. The best open-source Delphi code obfuscator in 2021 is Pythia. In case the program was already created and there are some issues that need to be fixed, decompiling it might be the thing to open the way towards identifying. I have a program written in delphi that I wish to decompile. Decompiling Delphi Program 5,7/10 740 votes. DeDe (Delphi Decompiler) brags on performing this particular task fast and neat. Decompiling executable files, no matter the programming language they have been compiled in, is a tedious job. I came across this on web site and thought it useful to add it a a reference here.

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