gopinathrbe
Posts: 32
Joined: Fri Sep 22, 2023 8:14 am

Not detecting the prerequisites pdf24

If PDF24 is installed using the .exe file from the link below, it does not appear in the condition pop-up. I need it to work with both 32-bit and 64-bit .exe installers:
https://creator.pdf24.org/listVersions.php
Attachments
pdf24-exe-installation-not-detect.png
pdf24-exe-installation-not-detect.png (49.64 KiB) Viewed 1442 times
Liviu
Posts: 1275
Joined: Tue Jul 13, 2021 11:29 am
Contact: Website

Re: Not detecting the prerequisites pdf24

Hello,

PDF24-creator is not Windows Installer based. This is the reason why the application is not listed in the drop-down.

Only MSI files have an UpgradeCode (part of Windows Installer technology). An EXE does not and cannot have an Upgrade Code unless it installs or unpacks an MSI internally.

Since you can’t obtain an Upgrade Code here, you’ll need a different detection method. Two common alternatives are:

1. File version check. For example, test that "C:\Program Files\PDF24\pdf24.exe" exists and matches desired version.

2. Registry check. Look for a key such as: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{…}
and verify the DisplayName/DisplayVersion values.
registry version.png
registry version.png (70.16 KiB) Viewed 1219 times

Hope this helps! Let us know if you have any questions.

Best regards,
Liviu
________________________________________
Liviu Sandu - Advanced Installer Team
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