Decompilation is rarely a one-click process. It generally involves two main stages:
To reverse this, you typically need to follow a multi-step process using specialized (and often old) tools. The VLX Decompilation Workflow vlx decompiler
The compiled LISP is ; it is bytecode for a virtual machine (the Visual LISP interpreter inside AutoCAD). This bytecode is closer to assembly than to source LISP. Decompilation is rarely a one-click process
A "VLX decompiler" is a tool or script used to attempt to reverse-engineer .vlx files , which are compiled AutoLISP executable application modules used primarily in AutoCAD. This bytecode is closer to assembly than to source LISP
A (Visual LISP eXecutable) file is a compiled, binary format used by AutoCAD and its derivatives (like BricsCAD, IntelliCAD). It is generated by the Visual LISP compiler from one or more source files ( .lsp , .fas , .dcl ).
Decompiling VLX files is notoriously difficult because the process is not perfectly reversible .