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Nullsoft Install System

Nullsoft and Contributors · NSIS.NSIS

A professional open source system to create Windows installers

NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of successful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.

winget install --id NSIS.NSIS --exact --source winget

Latest 3.11

Release Notes

F.1.1 Release Notes Your installer will still fit on a single floppy disk. Or even eight.

F.1.2 Changelog

F.1.2.1 Security

  • Retry creating restricted $PLUGINSDIR (thanks Sandro Poppi for responsibly disclosing, bug #1315) This stops a possible privilege escalation. A malicious actor can create the temporary plugins directory ($PLUGINSDIR) at just the right time and fill it with malicious files that the installer might use. Installers running as SYSTEM use C:\windows\temp which is accessible by all users on the system. Any user can use this bug to gain SYSTEM privileges by winning the race condition with an installer that starts as SYSTEM.

F.1.2.2 Minor Changes

  • Retry opening self if there is a sharing error (partial patch #316)
  • Support setting source file decoding charset with magic comment (patch #292)
  • Fixed LicenseBkColor for uninstaller (bug #1314)
  • Handle CHARSET command line parameter in MakeNSISW (patch #315)
  • Make System/Resource.dll reproducible (patch #312)
  • Zip2Exe accepts .zip as command line parameter

F.1.2.3 Translations

  • Updated Finnish (patch #313)

Installer type: nullsoft

Architecture Scope Download SHA256
x86 — Download 38D49F8FE09B1C332B01D0940E57B7258F4447733643273A01C59959AD9D3B0A

Details

Homepage
https://nsis.sourceforge.io/Download
License
Zlib or Libpng
Publisher
Nullsoft and Contributors
Support
https://nsis.sourceforge.io/Support
Copyright
Copyright (C) 1999-2025 Contributors
Moniker
nsis

Tags

installernsisnullsoftsetup

Older versions (5)

3.10
Architecture Scope Download SHA256
x86 — Download 4313D352E0DAFD1F22B6517126A655CAE3B444FA758D2845EDDFBE72F24F7BDD
3.09
Architecture Scope Download SHA256
x86 — Download B06AAFCC8F06C504FA15F2994A85086E7CDAE4B786CE52CE9D812DC1EFEAC2F9
3.08
Architecture Scope Download SHA256
x86 — Download BBC76BE36ECB2FC00D493C91BEFDAF71654226AD8A4FC4DC338458916BF224D0
3.07
Architecture Scope Download SHA256
x86 — Download 82DBB5C52755E46477039BC9C4B13831B03FDCFD6F54A58B59B91802145383CF
3.06.1
Architecture Scope Download SHA256
x86 — Download F60488A676308079BFDF6845DC7114CFD4BBFF47B66BE4DB827B89BB8D7FDC52