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I cannot use Inno Setup 6 or above (which has built-in download support) as many of my users are still using Windows 7 (without any updates like SP1) and setup created with version 6 is failing there (even after Setting MinVersion to 6.0).

What I have already tried:

  1. Inno Download Plugin by Mitrich Software – I am using Inno Setup 5.3.11 and it gives below error on first line (#include <idp.iss>):

To be able to use compiler directives other than '#include', you need Inno Setup Preprocessor (ISPP) which is currently not installed.

To download and install ISPP, get the Inno Setup QuickStart Pack from http://www.jrsoftware.org/isdl.php#qsp.

I tried searching Inno Setup QuickStart Pack on given URL, but could not locate as it is removed.

  1. InnoTools Downloader – This does not support HTTPS which is required.

  2. DwinsHs (Downloader for Inno Setup) – This has some odd requirement of adding link on my website which doesn't suite my need. Also, I tried it but giving same error as #1.

Any help to get https download working in Inno Setup 5.3.11 version is much appreciated.

Martin Prikryl
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Ramesh Patel
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1 Answers1

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According to Inno Setup version history, the latest version (currently 6.2) should support vanilla Windows 7 with MinVersion=6.0. I suggest you recheck this option to avoid using old versions.

Anyway, you can download any older version of Inno Setup from: https://files.jrsoftware.org/is/

The preprocessor is included in Inno Setup installers for quite some time. It's definitely included in latest IS5, the 5.6.1.

You can probably also do without preprocessor altogether. Just copy and paste the contents of the idp.iss in place of the #include <idp.iss>. You will also have to manually preprocess the directives in the idp.iss itself. But there are only handful of them.

Martin Prikryl
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  • Thanks for idea of using older version having preprocessor. Just for the sake of completeness and for future developers coming here for solution, I downloaded 5.6.1 version from https://files.jrsoftware.org/is/5/. I also had to make some adjustments shown at https://groups.google.com/g/inno-download-plugin/c/yjAJkjynBTE. – Ramesh Patel Sep 22 '21 at 14:30