Incorrect Prerequisite Installation Prompt During Uninstallation

[gopinathrbe]

When attempting to uninstall the main tool after its prerequisite has been removed, the system incorrectly displays the "Installing prerequisite" window. This is misleading and suggests that installation is occurring during uninstallation.

Steps to Reproduce:

1. Install the main tool along with its prerequisite or skip the prerequisite installation using Condition in the Prerequisite Installation Tab.

2. Manually uninstall the prerequisite, if it is installed

3. Attempt to uninstall the main tool.

Observe that the "Installing prerequisite" dialog appears during this uninstallation process.

Expected Behavior:
Uninstalling the main tool should not attempt to reinstall or show installation prompts for a missing prerequisite.

Actual Behavior:
A misleading "Installing prerequisite" window appears, suggesting that the system is attempting to reinstall components during an uninstall operation.

Advanced installer: 22.7

[Catalin]

Hello,

Could you please create a sample project that reproduces this and forward that to me by email at support at advancedinstaller dot com?

I would need:

- the AIP file

- a download link for the prerequisite

so I can run some more tests and further investigate this on my end.

Best regards,
Catalin

[gopinathrbe]

Uncheck "Install PDF24" during installation.

uncheck-pdf24.jpg (59.18 KiB) Viewed 3444 times

Then try to uninstall — the prerequisites still get installed.
Additionally, custom options appear at the end of the uninstallation process.

warningformcustomaction.jpg (31.45 KiB) Viewed 3444 times

prerequisites download link: https://tools.pdf24.org/en/creator

[Catalin]

Hello,

The problem with the prerequisite is the fact that you are using a wrong condition.

Screenshot_44.png (1.45 KiB) Viewed 3433 times

In the "Dialogs" page, you can see that the value of the checkbox is "CheckBox" if it is checked.

Screenshot_45.png (13.85 KiB) Viewed 3433 times

Regarding the other error, I was not able to reproduce it by changing the prerequisite's install condition to a correct one.

Best regards,
Catalin

[gopinathrbe]

The issue isn't with the installation process , but with the prerequisite being installed during uninstallation.

"Specifically, the condition INSTALL_PDF24 = "Yes" is meant to ensure that the prerequisite installs only during the installation process if the condition is met. However, it's being installed during uninstallation as well, which shouldn't happen.

prere-condition.jpg (102.95 KiB) Viewed 3425 times

Why is the prerequisite being triggered during uninstallation?"

[Catalin]

Hello,

Did you test my solution?

If not, please do so and the prerequisite should no longer be triggered during uninstall. In my tests, it was no longer triggered after changing the condition to a proper one.

Best regards,
Catalin

[gopinathrbe]

You need to uncheck the checkbox to prevent the prerequisite from being installed. Installing the prerequisite avoids the issue I’m referring to

Condition:

ConditionState.jpg (133.19 KiB) Viewed 3416 times

Please follow these steps:

Install the test tool along with the prerequisite.

Uninstall the prerequisite.

Now uninstall the test tool

[Catalin]

Hello,

In order for me to increase my chances of reproducing this, please forward me the new version of the sample AIP that you are using so I can build that on my end.

Best regards,
Catalin

[gopinathrbe]

Here it is

TestInstallation.aip

(54.59 KiB) Downloaded 64 times

[gopinathrbe]

Is there any progress on this? This issue is consuming a lot of my time, and it’s not the first occurrence. With each new release, I have to re-validate all features on my installer, which is both time-consuming and unreliable.

It’s reached a point where I’m hesitant to even update your tool.

[Catalin]

Hello,

This turns out to be caused by the use of wrong conditions.

Could you please try to use the following condition for your prerequisite:

Code: Select all

INSTALL_PDF24 = "Yes" AND (NOT Installed)

and let me know if that helps?

Best regards,
Catalin

[gopinathrbe]

Even though the prerequisite is not installed, I still receive this message in the progress status

Prerequisite-incorrect-message.jpg (55.67 KiB) Viewed 3293 times

Even there are status updates about the prerequisite during uninstallation
At the end of the process, I still get this window—which should only appear if UILevel = 2 (onle for silient mode)

incorrect-popup-accept-eula.jpg (30.53 KiB) Viewed 3293 times

[Catalin]

Hello,

Not quite sure whether the issue is also resolved on your end?

Regarding the new issue, I'm afraid I can not really test that as I do not have the DLL.

If possible, could you please share a copy of the DLL with me so I can run some tests and see if I can reproduce the isuse?

Best regards,
Catalin

[gopinathrbe]

here you go

TemplateTest.zip

(134.53 KiB) Downloaded 56 times

[Catalin]

Hello,

Thank you for sharing the resources with me.

I have tested this, but I'm afraid i wasn't able to reproduce the issue on my end.

I do not see any messages during the installation with full UI. However, I can reproduce this if I launch the EXE with the /qn parameter, which is correct considering the condition you have used.

Are you able to reproduce this on a clean VM as well?

Best regards,
Catalin