Add files to the uninstall log

[Eivind Bakkestuen]

I would like to be able to add files installed via [code] to the uninstall log, to make sure a later uninstall can delete them.

Scenario:

- installer installs DLLs into a number of existing dev environments, via detection in [code]

- user deletes or changes dev environment location

- now [code] during uninstall can't find the leftover DLLs to remove

Due to the dynamic nature of the dev environments, it's tricky (unreliable) to use Files with {code:}.

Can't find anything in the docs that allows adding to the uninstall log. Is it possible?

[Martijn Laan - Inno Setup]

Hi,

Op 13-8-2026 om 04:38 schreef Eivind Bakkestuen:

Can't find anything in the docs that allows adding to the uninstall log. Is it possible?

I don't think so. You could write your info to a custom file next to the uninstall log however?

Make sure to append to it instead of overwriting, and use a format which is both backward and forward compatible.

Use {uninstallexe} and ChangeFileExt to get the filename to use.

Greetings,
Martijn

[Eivind Bakkestuen]

Sure, I know I can write an extra file to disk. Or store a list in the registry.. or... :)

Would it make sense to have functionality to do this built in? Or would it be against good installer practice?

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