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Nullsoft Scriptable Install System

The professional open source system to create Windows-compatible installers

Current release: v3.02.1


Small Overhead

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Wide Compatibility

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Scripting Language

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View the GitHub project


Scripting Language

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.

Example Script:

; Settings ---------------------------------
Name "Hello World"
OutFile "hello_world-1.0-setup.exe"
RequestExecutionLevel user

; Pages ------------------------------------
Page components
Page directory
Page instfiles

; Sections ---------------------------------
Section "section_name" section_name_index

    Call Dialog

SectionEnd

; Functions --------------------------------
Function Dialog

    MessageBox MB_OK "Hello World"

FunctionEnd

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