ISS Joiner 3.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular version among ISS Joiner users is 3.0. This free program was originally developed by Bulat Ziganshin. The latest version of ISS Joiner is supported on PCs running Windows 7/8/10/11, 32-bit. The software lies within Photo & Graphics Tools, more precisely Viewers & Editors. We recommend checking the downloaded files with any free antivirus.
From the developer:
Utility for quickly joining InnoSetup scripts, that allows you to merge their features without doing programming.
The utility merges bodies of standard event procedures in scripts being joined. Current version supports joining for 16 types of event procedures: InitializeSetup, CurPageChanged and so on. ISS Joiner correctly deals with multiple sections in scripts and section-less (pure code) scripts.
You may want to check out more software, such as Visual MP3 Splitter & Joiner, EXE Joiner or File Joiner, which might be similar to ISS Joiner.