NSIS 是"Nullsoft 脚本安装系统"(Nullsoft Scriptable Installation System) 的缩写,它是一个免费的 Win32 安装、卸载系统,采用了简洁高效的脚本方式.它本来是一个由 Nullsoft 创建并用于作为 Winamp 及其插件发布的系统,但现已被上百个应用程序所应用,作为它们进行程序发布的工具.Release Name: 2.27 Notes:
NSIS 2.27 is released. This release is a quick-fix release that addresses a bug
introduced in the last version, 2.26, that caused $PROGRAMFILES and $COMMONFILES
to translate into random strings in the uninstaller. It also includes a couple
of minor fixes and improvements.

Changes:
Major Changes
* Fixed a bug introduced in 2.26 that made $PROGRAMFILES and $COMMONFILES
unavailable in the uninstaller Minor Changes
* Disable the X button on InstallOptions pages when CancelEnabled is 0
* Fixed incomplete MessageBox usage line (bug #1709460) Build System
* Added TOOLSET option to allow selection of specific build tools
(e.g. scons TOOLSET=mingw)

下载链接:NSIS v2.27
官方页面:http://nsis.sourceforge.net