'''Nullsoft Scriptable Install System (NSIS)''', is an [[open source|open-source]], script-driven installation system with minimal overhead being backed by [[Nullsoft]], creators of [[Winamp]]. NSIS 1 is in many ways similar to the classic [[Microsoft Windows|Windows]] installer, but it is more easily scriptable and supports more compression formats. NSIS 2 has a new streamlined [[GUI]], supports [[LZMA]] compression, multiple languages and an easy plug-in system. The NSIS script compiler compiles on [[POSIX]] platforms. This allows compiling [[Microsoft Windows|Windows]] installers on [[Linux]] and [[FreeBSD]] without the usage of [[WINE]].
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NSIS was created because of the need to distribute [[Winamp]]. It is based on PiMP (Plug-In Mini Packager), also a [[Nullsoft]] creation, and is also known as SuperPiMP. After version 2.0a0, the project was moved to [[SourceForge]] where developers outside of [[Nullsoft]] started working on it on a regular basis. After almost two years of alphas, betas and release candidates, NSIS 2.0 was released.
