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NSIS (Nullsoft Scriptable Install System) is a tool that allows programmers to create installers for Windows. It is released under an open source license and is completely free for any use. NSIS creates installers that are capable of installing, uninstalling, setting system settings, extracting files, etc. Because it's based on script files you can fully control every part of your installer. The scripting language supports variables, functions and string manipulation, just like a normal programming language - but designed for the creation of installers.

NSIS 3.9 INSTALLER

Release Date:	July 1, 2023
License:	Freeware
Copyright:	Copyright © 1999 - 2024 Contributors
File Size:	1,48 MB (1560473 bytes)

NSIS 3.9 SOURCE CODE

Release Date:	July 1, 2023
License:	Freeware
Copyright:	Copyright © 1999 - 2024 Contributors
File Size:	1,72 MB (1808806 bytes)

Complementing the functionality of the System Information Tool and Winamp Information Tool projects, I also created few NSIS plugins, which implement a number of useful functionalities in NSIS installer. These are: SysInfo, HashInfo and WAInfo.