Windows · Free download · General

Inno Setup

Inno Setup is a free installer for Windows programs.

Operating system
Windows 10/11
File size
1.87 MB
License
OpenSource under LGPL
Last updated
Apr 30, 2026
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Overview

What is Inno Setup?

Inno Setup is a free installer for Windows programs.

In depth

A closer look at Inno Setup

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. Key features:

  • Support for all versions of Windows in use today: Vista, XP, 2008, 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. Both the x64 and Itanium architectures are supported. (On the Itanium architecture, Service Pack 1 or later is required on Windows Server 2003 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.
  • Installation of files: Includes integrated support for "deflate", bzip2, and 7-Zip LZMA file compression. The installer has the ability to compare file version info, replace in-use files, use shared file counting, register DLL/OCX's and type libraries, and install fonts.
  • Creation of shortcuts anywhere, including in the Start Menu and on the desktop.
  • Creation of registry and .INI entries.
  • Integrated Pascal scripting engine.
  • Support for multilingual installs.
  • Support for passworded and encrypted installs.
  • Silent install and uninstall.
  • Full source code is available (Borland Delphi 2.0-5.0).

Requirements

System requirements

Windows 2000 / XP / Vista / Windows 7 / XP 64-bit / Vista 64-bit / Windows 7 64-bit / Windows 8 / Windows 8 64-bit / Windows 10 / Windows 10 64-bit

Verdict

Should you download Inno Setup?

Inno Setup runs on Windows 10/11 and is available under the OpenSource under LGPL license — the installer is 1.87 MB. We’ve catalogued it under General.

Verified clean. Every Inno Setup build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

Inno Setup specifications

Category
General
Publisher
Jordan Russell
Last updated
Apr 30, 2026
Requirements
Windows 2000 / XP / Vista / Windows 7 / XP 64-bit / Vista 64-bit / Windows 7 64-bit / Windows 8 / Windows 8 64-bit / Windows 10 / Windows 10 64-bit
License
OpenSource under LGPL
Operating system
Windows 10/11
File size
1.87 MB
Price
Free
Page views
529

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