NSIS (Nullsoft Scriptable Install System) can create Windows installers that are capable of installing, uninstalling, setting system settings, extracting files, etc. Because NSIS is based on script files, you can create both simple or advanced installers.

Small overhead size

NSIS is created to be small, fast and and efficient

Compatible with all major Windows versions

You can create a single installer that is compatible with all versions

Unique compression methods

You can choose between three different integrated compression method (ZLib, BZip2, LZMA)

Script based

NSIS has a powerful scripting language

Multiple languages in one installer

More than 40 translations are already included, but you can also create your own language files

Many features and checks for the target system

The script langauge provides commands you can use on the target system.

Custom dialogs and interfaces

You can create custom wizard pages to get user input or integrate configuration options

Plug-in system

NSIS can be extended with plug-in that can communicate with the installer.

Support for web installation, file patching

The NSIS distribution includes a set of plug-ins that allow you to download files from the internet, make internet connections, patch existing files and more

Project integration, different releases and automatic builds

The NSIS compiler features a powerful preprocessor

Easy and human readable file formats

You can edit your files with your favorite editor