Inno Setup is a free installer for Windows programs. First introduced in 1997, Inno Setup today rivals and even surpasses many commercial installers in feature set and stability.

Inno Setup 是一個免費的安裝制作軟件，小巧、簡便、精美是其最大特點，支持pascal腳本，能快速制作出標準Windows2000風格的安裝界面，足以完成一般安裝任務。該軟件用Delphi寫成，其官方網站同時也提供源程序免費下載。它雖不能與Installshield這類恐龍級的安裝制作軟件相比，但也當之無愧算是后起之秀。

Key features:

* Support for all versions of Windows in use today: Vista, XP, 2003, 2000, Me, 98, 95, and NT 4.0. (No service packs are required.)
* Extensive support for installation of 64-bit applications on the 64-bit editions of Windows Vista, Windows XP, and Windows Server 2003. Both the x64 and Itanium architectures are supported. (On the Itanium architecture, Service Pack 1 is required to install in 64-bit mode.)
* Supports creation of a single EXE to install your program for easy online distribution. Disk spanning is also supported.
* Standard Windows 2000/XP-style wizard interface.
* Customizable setup types, e.g. Full, Minimal, Custom.
* Complete uninstall capabilities and more...

Changelog:

* Fix: On Windows Vista, attempting to expand a shell folder constant that mapped to the root directory of a drive would fail with an error message. This was due to a bug in Vista's SHGetFolderPath API. A workaround for the problem has been implemented.
* On Browse dialogs, the BrowseDialogLabel message text may now span multiple lines.
* The OnlyOnThisPlatform message is no longer used. Now, when a Windows 95/98/Me user attempts to run an installation with a MinVersion setting that blocks installation on non-NT platforms, Setup will display the WinVersionTooLowError message, which is a bit more helpful as it mentions the required version number.
* Corrected some trivial one-pixel-off issues when non-default dialog fonts or font sizes were used.
* Added official Hebrew translation.
* Minor tweaks.

Download: Inno Setup 5.1.12