Decompile - Progress .r File

Before you decompile a .r file, consider the law. The Progress License Agreement typically prohibits reverse engineering:

“Customer shall not reverse engineer, decompile, or disassemble the Software.”

However, if the software was developed internally by your own company and you simply lost the source code, most courts view decompilation for maintenance or interoperability as fair use (citing EU Software Directive 2009/24/EC and US Sega v. Accolade).

Safe path:

A hex dump mixed with token listings. For example: decompile progress .r file

OFFSET 0x0042: TOKEN_PUSH_VARIABLE "cCustName"
OFFSET 0x0048: TOKEN_DB_FIND "Customer"
OFFSET 0x0051: TOKEN_IF_EQUAL

If the .r file is a container, your next step is extraction.

Yes, partially. But there is a massive caveat: There is no official, one-click "decompiler" from Progress Software.

Unlike Java (with JAD or CFR) or .NET (with ILSpy), Progress’s R-code format was designed for performance, not disassembly. However, the community and legacy tooling provide three distinct methods:

Let’s explore each method in detail.

for(f in funcs) cat(paste0("\n\n# Function: ", f, "\n"), file="recovered_code.R", append=TRUE) dump(f, file="recovered_code.R", append=TRUE)

Now open recovered_code.R – you have raw R function definitions.

What are .r files?
In Progress OpenEdge (formerly Progress 4GL), .r files are runnable bytecode produced by compiling .p (procedure) or .w (window) source files. They contain p-codes interpreted by the OpenEdge runtime engine.

Can you decompile them?
Officially: No. Progress Software does not offer a decompiler. The bytecode is proprietary, and attempts to reverse-engineer it violate most license agreements. Unofficially: Third-party tools have existed historically, but they are legally risky, often produce garbled output, and are not supported. Before you decompile a

What you can do instead:

Legal note: In most jurisdictions, decompiling commercial software without explicit permission infringes copyright and license terms. Only proceed if you own the full IP rights.

If you clarify your specific goal (e.g., recovering lost source, auditing a binary, or converting to another language), I can offer more targeted advice.

Occasionally, proprietary R packages are distributed with "byte-compiled" code using the compiler package. If you see bytecode: 0x... when inspecting a function, standard printing will not show the logic. However, if the software was developed internally by

You cannot decompile what you do not understand.