How to get Inno Setup to unzip a file it installed (all as part of the one installation process)

Question

To save bandwidth/space as well as prevent accidental meddling, the installation files for a database product (call it Ajax), have been zipped up (call that file \"AJAX_Inst

Answer 1

I answered a very similar question and some of the details apply.

I would question why you need a ZIP file of the contents? I personally would place the uncompressed files into the setup. I would then have two [category] entries one for the application and one for the data. Default both the be checked.

This would allow the users to install a fresh set of the data if needed at a later date.

If you really want a ZIP file and want to keep it easy you could, ship both the zip files and the uncompressed files in the same setup.

Update:

By default files that get placed in your setup.exe are compressed.

You can also have the files extracted to a temporary location so you can run your installation application, then have them deleted.

[Files]
Source: "Install1.SQL"; DestDir: "{tmp}"; Flags:deleteafterinstall;
Source: "Install2.SQL"; DestDir: "{tmp}"; Flags:deleteafterinstall;