What is Inno Setup?

Inno Setup version 6.5.1
Copyright © 1997-2025 Jordan Russell. All rights reserved.
Portions Copyright © 2000-2025 Martijn Laan. All rights reserved.
Inno Setup home page [external link]

Inno Setup is an open-source installation builder for Windows applications by Jordan Russell and Martijn Laan. Since its introduction in 1997, Inno Setup has been trusted by developers and organizations of all sizes to reliably deploy software to millions of PCs worldwide.

Key features:

Inno Setup is copyrighted software. There are some restrictions on distribution and use; see the LICENSE.TXT [external link] file for details.

All commercial users of Inno Setup are requested to purchase a commercial license [external link].