Decompiler for setups creates with the Nullsoft Installer
Python scripts that'll help you to nearly fully recover your NSIS-installation scripts.
It's currently in the 'alpha-state' however it's not far from being worth to title as beta or release.
I'm new to Sourceforge - for small updates I may also prefer the page below.
UPDATE: It'll maybe not working on this anymore. http://7-zip.de does a great job in also decompiling NSI.So I recommand you to check out 7-zip BETA.
Generally 7-zip opens NSI[exe] files - since 9.33 [2014-06-15] there should be additionally the file [NSIS].nsi inside, that is the decompiled setup script.
...
jdec is a Java Decompiler. It can be used to reverse the bytecodes present in a .class File to produce a Java Source File which can be nearly correct or equivalent (Due To different Interpretations) to the original java file.[With UI & command line]
dxcut is a library for reading, editing, and writing dex and odex files which contain the class definition and Dalvik bytecode used by the Android operating system. This project includes a disassembler/decompiler, dex optimizer, and hooking utils.
Tool for managing patch codes for the Nintendo Wii. Formats this tool handles are common to Gecko OS and popular Wii homebrew software. This is one of very few complete cross-platform GCT compilers and the only known GCT decompiler and merge tool.
Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.
Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
Decompyle is a python disassembler and decompiler which converts Python byte-code (.pyc or .pyo) back into equivalent Python source. Verification of the produced code (re-compiled) is avaliable as well.